SERVICE MANUAL. Commercial Air Conditioning. Models AU282FHAIA AU52NFIAKA AU60NFIAKA. And its indoor units. Features

Transcription

1 9 Commercial Air Conditioning SERVICE MANUAL Models AU8FHAIA AU34FHAIA AU5FIAKA AU5NFIAKA AU60NFIAKA Features And its indoor units New cassette unit, with 700*700 panel and new unit body New PCB for indoor and outdoor unit, much stabler Mutiple indoor unit types: cassette type, ceiling concealed type, and wall mounted type Free combination, total indoor capacity can be 50%~130% of outdoor capacity Multiple control types, infrared control+wired control Individual operation for every indoor uint, energy saving New refrigerant control device: MPA, MP3A Auto restart function Long piping and high drop between indoor and outdoor Refrigerant: R Manual code: SYJS-00-05REV.1 Edition:

2 CONTENTS Contents Description of products & features...3. Specification.6 3. Safety precaution Net dimension Installation instructions Parts and functions Controller functions Electrical control functions Wiring diagrams Failure code and troubleshooting Performance curves Noise level

3 1.DESCRIPTION OF PRODUCTS & FEATURES 1.1. Products code explanation A B 14 F C A I A Climate type: T1 (see table 1) Design number (I stands for design sequence, inverter frequency type) Product type: A stands for heat pump type, refrigerant is R B stands for heat pump type, refrigerant is R407C M stands for cool only type, refrigerant is R N stands for cool only type, refrigerant is R407C Appearance code Product series: F stands for MRV Applicable voltage: stands for 0-30V/50Hz, 4 stands for 0V/60Hz,N stand for V/50Hz Cooling / Heating capacity,14=14000btu/h Product type : B stands for cassette type, C stands for convertible type, D stands for duct, S stands for split type, Q stands for chiller system, "E" stands for ceiling concealed type, U stands for outdoor unit Air Conditioner 1. Brief Introduction for T1 T T3 working condition Type of Air Conditioner 1.3 Operating Range of Air Conditioners Working temperature range Cooling Heating Indoor outdoor Indoor outdoor Climate type T1 T T3 Cooling Only 18 ~43 10 ~35 1 ~5 Heat pump -7 ~43-7 ~35-7 ~5 Electricity Heating ~43 ~35 ~5 Rated Maximum Minimum DB WB DB WB DB WB DB WB

4 1.4 Product features New designed panel 700*700 with the 600*600 cassette unit New designed swing louver with the n smooth surface, which can hold back the condensant water. New designed filter lock, which will fix the filter more firmly than before. Adopts the stepping motor, give the louver a larger swing angel. New fan with bigger diameter fan blade, sending out larger air flow. The cassette indoor unit adopts the panel whose dimension is identical to that of ceiling, after installation, the unit will be accordant with the decoration decor. Free combination, total indoor capacity can be 50%~130% of that of outdoor capacity The outdoor unit can match with all types of indoor unit with the allowable capacity, such as the cassette type, the ceiling concealed type, the wall mounted type, etc. Optional control types: infrared remote controller and wired controller The unit can be controlled by the smart infrared remote controller YR-H71, which can realize many functions such as heating, cooling, fan, swing, fresh, health, filter up/down, electric heating, etc. Furthermore, the remote controller can be compatible with many old controllers, more convenient for utilizing. If the unit is with wired controller YR-E06, which can realize remote control type by adding an infrared controller YR-H71. Auto-check function The unit can display the malfunction codes on the control board by using advanced auto-check techlogy, convenient for user find and dwell with the abrmal running. Auto restart function (optional) All indoor units have auto-restart function. When the power supply cut off suddenly, the unit will automatically recover the previous running mode once the power supply is on. New refrigerant control device: MPA, MP3A The new refrigerant control device MPA and MP3A replace the previous device MP and MP3. The new device includes gas pipe and liquid pipe, more convenient for installation than before. -4-

5 outdoor units appearance model refrigerant AU8FHAIA AU34FHAIA R AU5FIAKA AU5NFIAKA AU60NFIAKA R indoor units type appearance model AB09FCAIA Four way cassette AB14FCAIA AB18FCAIA Convertible AC18FCAHA Ceiling concealed Ceiling concealed Wall-mounted (colorful screen) Wall-mounted (wide inlet grille) AE07FLAIA AE09FLAIA AE1FLAIA AE14FLAIA AE18FLAIA AE4FLAIA AE07FCAMA AE09FCAMA AE1FCAMA AE14FCAMA AE18FCAMA AE1FCAMA AE4FCAMA AS07FCAIA AS09FCAIA AS1FCAIA AS14FCAIA AS18FTAHA -5-

6 . SPECIFICATION Commercial Air Conditioner AU8FHAIA Item Model AU8FHAIA Function cooling heating Capacity BTU/h Capacity W Total power input W Max. power input W EER or COP W/W Power cable Power source Running /Max.Running current N,V,Hz A / A 6mm 1PH,0-30V~,50Hz cooling: 14.5A/A heating: 14.5/18A Start Current A -- Working frequency range Hz Fuse A 3.15A 50V AC Unit model (color) AU8FHAIA (white) Compressor Model / Manufacture THV310FEEC/MITSUBISHI GUANGZHOU Type ROTARY Type Number AXIAL*1 Fan Speed r/min 840±30r/min/780±30r/min/550±50r/min Fan motor output power kw 60*1 Air-flow(H-M-L) m³/h 340 Type / Diameter mm inner grooved copper pipe φ9.5 Heat exchanger Total area m² *1.5mm Temp. scope -- Dimension External (H L W) mm mm mm 948X830X340 Package (H L W) mm mm mm 1050X979X440 Refrigerant control method mm/mm EEV Defrosting AUTO Volume of Accumulator L -- Noise level db(a) 55 material of reduce ise crankcase heater power W Weight (Net / Shipping) kg / kg 74/89 Refrigerant Pipe Type / Charge Liquid g mm R/00 φ9.5 Recharge quantity Gas g/m mm φ9.5 liquid pipe: 65g/m actual length φ15.88 Connecting Method flared MAX.Drop m outdoor upper: 30, outdoor lower: 0 Between I.D &O.D MAX.Piping length m 50 Outdoor unit PIPING -6-

7 Item model AU34FHAIA Function Cooling Heating Capacity W Total power input W Max. power input W Working frequency range Hz Power source N,V,Hz 1PH 0~ 50HZ Power cable type core section YZW3 4.0mm Communication wire Circuit breaker Running current(max. running current) Outdoor unit PIPING Unit model (color) Compressor Fan Heat exchanger core section A A / A Model / Manufacture Type Type Number Speed r/min Fan motor output power W Air-flow(H-M-L) m³/h Type / Diameter mm Total area m² Temp. scope Dimension External (L W H) mm mm mm Package (L W H) mm mm mm Drainage pipe (material, I.D./O.D.) mm / Refrigerant control method mm/mm capillary +electrionic expansion valve Defrosting Auto Volume of Accumulator L / Noise level db(a) 58 Type of Four way valve / material of reduce ise crankcase heater power W Rubber bracket / Weight (Net / Shipping) kg / kg 80/86 Refrigerant Pipe Type / Charge g R 500 Recharge quantity g/m 65 Liquid mm 9.5 Gas mm Connecting Method flared MAX.Drop outdoor is upper m 30 Drop between outdoor is lower m 0 Piping length MAX.Drop between ID.&ID. total length longest length length from the first manifold to the longest indoor m m m m 1.5mm 30 cooling: 0/3, heating: 0/3 WHITE THV310FEEC/HITACHI scroll Axial-flowX ±40/840±50/590±50 > TPM/φ

8 AU48FIBIA Item Model AU5FIAKA Function cooling heating Capacity BTU/h Capacity W Total power input W Max. power input W EER or COP W/W Power cable Power source Running /Max.Running current N,V,Hz A / A 16mm 1PH,0-30V~,50Hz cooling: 33A/39A heating: 30/39A Start Current A -- Working frequency range Hz Fuse A 3.15A 50V AC Unit model (color) AU5FIAKA(white) Outdoor unit PIPING Compressor Model / Manufacture Type Type Number Fan Speed r/min Fan motor output power kw Air-flow(H-M-L) m³/h Type / Diameter mm Heat exchanger Total area m² Temp. scope Dimension External (H L W) mm mm mm Package (H L W) mm mm mm Refrigerant control method mm/mm Defrosting Volume of Accumulator L Noise level db(a) material of reduce ise crankcase heater power W Weight (Net / Shipping) kg / kg Refrigerant Pipe Type / Charge Liquid g mm Recharge quantity Gas g/m mm Connecting Method MAX.Drop m Between I.D &O.D MAX.Piping length m AHV60FCLT/MITSUBISHI THAILAND SCROLL AXIAL* 90±30 r/min/840±40r/min/560±50r/min 65* 7480 inner grooved copper pipe φ9.5 *1.5mm X948X X1050X440 EEV AUTO /135 R/4900 φ9.5 liquid pipe: 65g/m actual length φ9.5 φ19.05 flared outdoor upper: 30, outdoor lower:

9 AU48NFIBJA Item Model AU5NFIAKA Function cooling heating Capacity BTU/h Capacity W Total power input W Max. power input W EER or COP W/W Power cable Power source Running /Max.Running current N,V,Hz A / A 4mm 3N~, V,50Hz cooling: 10.5A/13.5A heating: 9/13.5A Start Current A -- Working frequency range Hz Fuse A 3.15A 50V AC Unit model (color) AU5NFIAKA (white) Outdoor unit PIPING Compressor Model / Manufacture Type Type Number Fan Speed r/min Fan motor output power kw Air-flow(H-M-L) m³/h Type / Diameter mm Heat exchanger Total area m² Temp. scope Dimension External (H L W) mm mm mm Package (H L W) mm mm mm Refrigerant control method mm/mm Defrosting Volume of Accumulator L Noise level db(a) material of reduce ise crankcase heater power W Weight (Net / Shipping) kg / kg Refrigerant Pipe Type / Charge Liquid g mm Recharge quantity Gas g/m mm Connecting Method Between I.D &O.D MAX.Drop MAX.Piping length m m AHV60FCHT/MITSUBISHI THAILAND SCROLL AXIAL* 90±30 r/min/840±40r/min/560±50r/min 65* -- inner grooved copper pipe φ9.5 *1.5mm X948X X1050X440 EEV AUTO /135 R/4700 φ9.5 liquid pipe: 65g/m actual length φ9.5 φ19.05 flared outdoor upper: 30, outdoor lower:

10 Model Item AU60NFIAKA Function Cooling Heating capacity BTU/h capacity W Total Power input W Max. Power input EER / COP W/W Power Cable Mm 4 Power source N, V, Hz 3N~, V, 50Hz Running/Max. Running Current A / A Cooling: 1.5/14.5 heating: 11.5/14.5 Start Current A Working frequency range Hz Fuse A 3.15A 50V AC Unit model (color) AU60NFIAKA(white) Compressor Model / Manufacture 401DHV-64D/HITACHI GUANGZHOU Type SCROLL Fan Type Number Axial Speed r/min 980 ±40/ 840 ±50/ 590 ±50 Fan motor output power W 10 Piping Outdoor unit Air-flows (H/M/L) m³/h about 5900 Heat Type / Diameter mm TPM / 8.0 exchanger Temp. scope Total area m² 3*1.7mm Dimension External mm 150x948x340 (L W H) Package mm 1375x1050x440 Refrigerant control method EEV Defrosting method Automatic by reversible cycle Volume of accumulator L Crankcase heater power W 40 Noise level db(a) 60 Weight Net / Shipping kg / kg 10 / 130 Refrigerant Type / Charge kg R / 5.3 Recharge quantity g/m Φ1.7liquid pipe:10g/m*actual length Pipe Liquid mm Φ1.7 Gas mm Φ.(Jointing) Connecting method flared Between I.D Max.Drop m outdoor upper:30outdoor lower:0 &O.D Max.Piping length between IU & OU m Large drop and long piping installation will obviously reduce the total capacity. -10-

11 Item AB09FCAIA AB14FCAIA Cooling capacity Btu/h Heating capacity Btu/h Cooling capacity W Heating capacity W Dehumidifying capacity 10 ³ m³/h Power source N, V, Hz 1PH 0V-30V~ 50HZ 1PH 0V-30V~ 50HZ Starting current A 1 1 Refrigerant R R Noise level(h/m/l) db(a) 4/--/-- 4/--/-- Type Number centrifugal fan 1 centrifugal fan 1 Fan Air-flow(H-M-L) m³/h 700/--/-- 700/--/-- Fan motor output W starting mothod PG PG Heat exchanger Refrigerant control method Combination of wave cranny radiation fin and copper Capillary + Electronic expansion valve Dimension(L W H) External mm mm mm Shipping mm mm mm Panel dimension (L W H) External mm mm mm Shipping mm mm mm Weight(unit/panel) Net kg / kg 19.0/ /.8 Shipping kg / kg 3.5/ /4.8 Liquid mm (inch) 6.35 (1/4") 6.35 (1/4") Piping Gas mm (inch) 1.7 (1/") 1.7 (1/") water diameter (mm) 3 3 Suited area m 1~3 17~7 Controller type remote controller remote controller Item AB18FCAIA AC18FCAHA Cooling capacity Btu/h Heating capacity Btu/h Cooling capacity W Heating capacity W Dehumidifying capacity 10 ³ m³/h.1.1 Power source N, V, Hz 1PH 0V-30V~ 50HZ 1PH 0V-30V 50HZ Starting current A 1 1 Refrigerant R R Noise level(h/m/l) db(a) 4/--/-- 48/44/38 Type Number centrifugal fan 1 centrifugal fan 1 Fan Air-flow(H-M-L) m³/h 700/--/ Fan motor output W 55 / starting mothod PG Relay control Combination of wave cranny radiation fin and copper Heat exchanger Refrigerant control method Dimension(L W H) Panel dimension (L W H) model model pipe Capillary + Electronic expansion valve External mm mm mm Shipping mm mm mm External mm mm mm / Shipping mm mm mm / Weight(unit/panel) Net kg / kg 19.0/.8 30 Shipping kg / kg 3.5/ Liquid mm (inch) 6.35 (1/4") 9.5(3/8") Piping Gas mm (inch) 1.7 (1/") 15.88(5/8") water diameter (mm) 3 3 Suited area m ~33 ~33 Controller type remote controller remote controller -11-

12 Item model AE07FCAMA AE09FCAMA Cooling capacity Btu/h Heating capacity Btu/h Cooling capacity W Heating capacity W Dehumidifying capacity 10 ³ m³/h Power source N, V, Hz 1PH 0V-30V~ 50HZ 1PH 0V-30V~ 50HZ Refrigerant R R Noise level(h/m/l) db(a) 35/3/30 35/3/30 Type Number centrifugal fan 1 centrifugal fan Fan Air-flow(H-M-L) m³/h 40/--/-- 50/--/-- starting mothod Heat exchanger Refrigerant control method Combination of wave cranny radiation fin and copper Electronic expansion valve Dimension(L W H) External mm mm mm Dimension(L W H) shipment mm mm mm Weight(unit/panel) Net kg / kg 11.6/ /0 Liquid mm Piping Gas mm water diameter (mm) Suited area m Controller type wired controller wired controller Item model AE1FCAMA AE14FCAMA Cooling capacity Btu/h Heating capacity Btu/h Cooling capacity W Heating capacity W Dehumidifying capacity 10 ³ m³/h Power source N, V, Hz 1PH 0V-30V~ 50HZ 1PH 0V-30V~ 50HZ Refrigerant R R Noise level(h/m/l) db(a) 35/3/30 35/3/30 Type Number centrifugal fan centrifugal fan Fan Air-flow(H-M-L) m³/h 650/--/-- 700/--/-- starting mothod Heat exchanger Refrigerant control method Combination of wave cranny radiation fin and copper pipe Electronic expansion valve Dimension(L W H) External mm mm mm Dimension(L W H) shipment mm mm mm Weight(unit/panel) Net kg / kg 0/ 0/ Liquid mm Piping Gas mm water diameter (mm) Suited area m Controller type wired controller wired controller -1-

13 Item model AE18FCAMA AE1FCAMA Cooling capacity Btu/h Heating capacity Btu/h Cooling capacity W Heating capacity W Dehumidifying capacity 10 ³ m³/h Power source N, V, Hz 1PH 0V-30V~ 50HZ 1PH 0V-30V~ 50HZ Refrigerant R R Noise level(h/m/l) db(a) 37/36/34 37/36/34 Type Number centrifugal fan centrifugal fan Fan Air-flow(H-M-L) m³/h 1000/--/ /--/-- starting mothod Heat exchanger Refrigerant control method Combination of wave cranny radiation fin and Electronic expansion valve Dimension(L W H) External mm mm mm Dimension(L W H) shipment mm mm mm Weight(unit/panel) Net kg / kg 5/7 5/7 Liquid mm Piping Gas mm water diameter (mm) Suited area m Controller type wired controller wired controller Item model AE4FCAMA Cooling capacity Btu/h 4000 Heating capacity Btu/h 7000 Cooling capacity W 7100 Heating capacity W 8000 Dehumidifying capacity 10 ³ m³/h -- Power source N, V, Hz 1PH 0V-30V~ 50HZ Refrigerant R Noise level(h/m/l) db(a) 39/37/35 Type Number centrifugal fan 3 Fan Air-flow(H-M-L) m³/h 1500/100/900 starting mothod -- Heat exchanger Combination of wave cranny radiation fin and Refrigerant control method Capillary + Electronic expansion valve Dimension(L W H) External mm mm mm Dimension(L W H) shipment mm mm mm Weight(unit/panel) Net kg / kg 4/44 Liquid mm 9.5 Piping Gas mm water diameter (mm) 16 Suited area m -- Controller type wired controller -13-

14 Item model AE07FLAIA AE09FLAIA Cooling capacity KW..8 Heating capacity KW.5 3. Power source N, V, Hz 1PH 0V-30V 50HZ 1PH 0V-30V 50HZ Running current A Consumption power KW Refrigerant R R Noise level(h/m/l) db(a) 35/3/30 35/3/30 Type Number centrifugal fan 1 centrifugal fan 1 standard air flow m³/h Fan motor output KW standard pressure Pa 0 0 max. pressure Pa 0 0 Heat exchanger Refrigerant control method Combination of wave cranny radiation fin and copper pipe Capillary + EEV Dimension (L W H) External mm mm mm 610*483.5*0 610*483.5*0 Dimension (L W H) shipment mm mm mm 695*536*65 695*536*65 Air outlet dimension mm 418* *131 Air return dimension mm 480*18 480*18 Weight Net/gross kg 13/ /13.5 Liquid mm Piping Gas mm water diameter mm 4 4 Connection method flared flared Controller type wired controller or remote controller(optional) Item model AE1FLAIA AE14FLAIA Cooling capacity KW Heating capacity KW Power source N, V, Hz 1PH 0V-30V 50HZ 1PH 0V-30V 50HZ Running current A Consumption power KW Refrigerant R R Noise level(h/m/l) db(a) 35/3/30 35/3/30 Type Number centrifugal fan 1 centrifugal fan standard air flow m³/h Fan motor output KW standard pressure Pa 0 0 max. pressure Pa 0 0 Heat exchanger Refrigerant control method Combination of wave cranny radiation fin and copper pipe Capillary + EEV Dimension (L W H) External mm mm mm 610*483.5*0 1105*483.5*0 Dimension (L W H) shipment mm mm mm 695*536* *536*69 Air outlet dimension mm 418* *131 Air return dimension mm 480* *18 Weight Net/gross kg 14/14.5 5/6 Liquid mm Piping Gas mm water diameter mm 4 4 Connection method flared flared Controller type wired controller or remote controller(optional)

15 Item model AE18FLAIA AE4FLAIA Cooling capacity KW Heating capacity KW Power source N, V, Hz 1PH 0V-30V 50HZ 1PH 0V-30V 50HZ Running current A Consumption power KW Refrigerant R R Noise level(h/m/l) db(a) 39/37/35 39/37/35 Type Number centrifugal fan centrifugal fan standard air flow m³/h Fan motor output KW standard pressure Pa 0 0 max. pressure Pa 0 0 Heat exchanger Refrigerant control method Combination of wave cranny radiation fin and copper pipe Capillary + EEV Dimension (L W H) External mm mm mm 1105*483.5*0 1105*483.5*0 Dimension (L W H) shipment mm mm mm 1161*536* *536*69 Air outlet dimension mm 880* *131 Air return dimension mm 1064* *18 Weight Net/gross kg 8/9 8/9 Liquid mm Piping Gas mm water diameter mm 4 4 Connection method flared flared Controller type wired controller or remote controller(optional)

16 Item model AS07FCAIA AS09FCAIA Cooling capacity Btu/h Heating capacity Btu/h Cooling capacity W Heating capacity W Dehumidifying capacity 10 ³ m³/h Power source 1PH 0V-30V~ 50HZ 1PH 0V-30V~ 50HZ Refrigerant R R Noise level(h/m/l) db(a) 34/30/9 34/30/9 Type Number cross-flow fan 1 cross-flow fan 1 Fan Air-flow(H-M-L) m³/h 50/410/ /--/-- starting mothod Heat exchanger Refrigerant control method Combination of wave cranny radiation fin and copper pipe Electronic expansion valve( EEV 1/4) Dimension(L W H) External mm mm mm Dimension(L W H) Shipping mm mm mm Weight(net/gross) kg / kg 10/13 10/13 Liquid mm Piping Gas mm water diameter (mm) Suited area m Controller type remote controller remote controller Item model AS1FCAIA AS18FTAHA Cooling capacity Btu/h Heating capacity Btu/h Cooling capacity W Heating capacity W Dehumidifying capacity 10 ³ m³/h Power source 1PH 0V-30V~ 50HZ 1PH 0V-30V 50HZ Refrigerant R R Noise level(h/m/l) db(a) 38/36/3 4/45/47 Type Number cross-flow fan 1 cross fan 1 Fan Air-flow(H-M-L) m³/h 630/--/ starting mothod -- Relay control Heat exchanger Combination of wave cranny radiation fin and copper pipe Refrigerant control method EEV1/4 EEV3/8 Dimension(L W H) External mm mm mm Dimension(L W H) Shipping mm mm mm Weight(net/gross) kg / kg 10/13 14/17 Liquid mm Piping Gas mm water diameter (mm) Suited area m -- 3~36 Controller type remote controller remote controller -14-

17 Norminal condition: indoor temperature (cooling): 7 DB/19 WB, indoor temperature (heating): 0 DB Outdoor temperature(cooling): 35 DB/4 WB, outdoor temperature(heating): 7 DB/6 WB The ise level will be measured in the third octave band limited values, using a Real Time Analyser calibrated sound intensity meter. It is a sound pressure ise level. The detailed method please refer to the following information: Installation state: the unit should be placed on the flat floor or be mounted in horizontal direction. Testing method: mounting-on-wall unit: built-in-ceiling unit: duct unit without auxiliary duct: m duct 1.4m 1.4m 0.8m 1m outdoor unit: 1.air outlet from side: the ise level is the average sound pressure level measured from front, left, right directions..air outlet from top: the ise level is the average sound pressure level measured from front, back, left, right directions. measured point: H ( height to the ground) = (h (unit height) + 1m) / and, it is 1m to each side. 1m 1m 1m h 1m Note: is the real time analyser position -15-

18 3. Safety precaution Carefully read the following information in order to operate the airconditioner correctly. Below are listed three kinds of Safety Cautions and Suggestions. WARNING! Incorrect operations may result in severe consequences of death or serious injuries. CAUTION! Incorrect operations may result in injuries or machine damages; in some cases may cause serious consequences. INSTRUCTIONS: These information can ensure the correct operation of the machine. Be sure to conform with the following important Safety Cautions. The Safety Cautions should be at hand so that they can be checked at any time when needed. If the conditioner is transferred to the new user, this manual should be as well transferred to the new user. WARNING! If any abrmal phemena is found (e. g.smell of firing), please cut off the power supply immediately, and contact the dealer to find out the handling method. Don't dismantle the outlet of the outdoor unit. The exposed fan is very dangerous which may harm human beings. In such case, to continue using the conditioner will damage the conditioner, and may cause electrical shock or fire hazard. switch off After the unit being used for a long time, the base should be checked for any damages. When the unit needs maintenance and repairment, please call dealer to handle it. Incorrect maintenance and repairment may cause water leak, electrical shock and fire hazard. If the damaged base is t repaired, the unit may fall down and cause accidents. -16-

19 WARNING! Installed electrical-leaking circuit breaker. It easily cause electrical shock without circuit breaker. Nothing or body is permitted to placed on or stand on outdoor unit. The falling of goods and people may cause accidents. Air-conditioner can't be installed in the environment with inflammable gases because the inflammable gases near to air-conditioner may cause fire hazard. Please let the dealer be responsible for installing the conditioner. Incorrect installation may cause water leak, electrical shock and fire hazard. Don't operate the air-conditioner with damp hands. Otherwise will be shocked. Call the dealer to take measures to prevent the refrigerant from leaking. If conditioner is installed in a small room be sure to take every measure in order to prevent suffocation accident even in case of refrigerant leakage. When conditioner is removed or reinstalled, dealer should be responsible for them. Incorrect installation may cause water leaking, electrical shock and fire hazard. Only use correctly-typed fuse. May t use wire or any other materials replacing fuse, other-wise may cause faults or fire accidents. Connect earthing wire. Earthing wire should t be connected to the gas pipe, water pipe, lightning rod or phone line, in-correct earthing may cause shock. Use discharge pipe correctly to ensure efficient discharge. Incorrect pipe use may cause water leaking. Earthing -17-

20 4. Net dimension AU8FHAIA, AU34XFHAIA: 948 Power wiring terminal AU5, AU Power wiring Terminal Screw Hole (4xM10)

21 AB** Cassette unit: AE** Ceiling concealed unit b 54 a C R10 R OVER unit model a b c AE07FCAMA AE09FCAMA AE1FCAMA AE14FCAMA AE18FCAMA AE1FCAMA AE4FCAMA

22 AE07FLAIA AE09FLAIA AE1FLAIA AE14FLAIA AE18FLAIA AE4FLAIA AE07FLAIA AE09FLAIA AE1FLAIA AE14FLAIA AE18FLAIA AE4FLAIA

23 AS** series -0-

24 Specification for MPA, MP3A: Model MP3A(for 3 indoors) MPA(for indoors) Power supply 1PH,0V~50Hz Power consumption W 11 Running current A 0.05 Dimension (HxWxD) mm Net weight kg 6 5 Wire quantity 4 wires, including power cable 3 wires, including power cable Main Connecting liquid pipe(welded) Branch liquid liquid pipe mm Ф9.5 Ф9.5 pipe mm Ф6.35, Ф9.5 Ф6.35, Ф9.5 Main gas pipe mm Ф15.88, Ф19.05 Ф15.88, Ф19.05 Connecting gas pipe(welded) Branch gas pipe mm Ф 9.5, Ф 1.7, Ф (with changing pipe) Ф 9.5, Ф 1.7, Ф (with changing pipe) Heat insulation material PS Min. total indoor capacity KW Max. total indoor capacity KW

25 Dimensions for MPA, MP3A: Installation on the horizontal ceiling: horizontal ceiling

26 Installation on the vertical wall (adjust the installation position by fixing holder): vertical wall

27 AU60NFIAKA refrigerant circuit: low pressure switch air outlet temp. sensor To indoor heat exchanger liquid inlet temp. sensor Ti MP3 or EEV box high pressure switch 3-way stop valve segregator discharging temp. sensor Td compressor capillary SV 3-way stop valve accumulator PMV1 filter drier single way valve defrosting temp. sensor Te refrigerant flow in heating refrigerant flow in cooling 4-way valve SV1 capillary capillary suction temp. sensor Ts gas-liquid segregator evaporator temp. sensor Tc outdoor heat exchanger -4-

28 5.1 Piping dimension chart model liquid pipe gas pipe mm inch mm inch AU /8" /8" AU /8" /8" AU /8" /4" AB /4" 1.7 1/" AB /4" 1.7 1/" AB /4" 1.7 1/" AC /8" /8" AE /4" 9.5 3/8" AE /4" 9.5 3/8" AE /4" 1.7 1/" AE /4" 1.7 1/" AE /8" /8" AE /8" /8" AE /8" /8" AS /4" 1.7 1/" AS /4" 1.7 1/" AS /4" 1.7 1/" AS /8" /8" 5. Y-shape manifold pipe model: FQG-B10 <gas side> heat preservation material <liquid side> heat preservation material Dimension is the out diameter connecting to the tubing. -5-

29 FQG-B180 gas pipe heat preservation material liquid pipe heat preservation material FQG-B370 gas pipe liquid pipe

30 Branch pipe selection: Commercial Air Conditioner 1. The pipe between outdoor to the 1 st branch pipe should be identical to the outdoor stop pipe. For example, for AU60, liquid pipe is 1.7; gas pipe is... The branch pipe should be selected as the indoor capacity: total capacity after the indoor capacity gas pipe liquid pipe branch pipe ~ 9500 φ15.88 φ9.5 FQG-B ~17900 φ19.05 φ9.5 FQG-B ~ φ. φ1.7 FQG-B The pipe between branch pipe should be confirmed as the total capacity of the indoors after the branch pipe. Total indoor capacity (100W) Gas pipe Liquid pipe <9.5 Φ15.88 Φ ~ 17.9 Φ19.05 Φ Φ. Φ The pipe between branch pipe and indoor should be identical to the indoor pipe. But if the pipe is more than30m from the 1 st branch pipe, the gas pipe should be enlarged for a larger specification

31 In the file, the figure marked with " " is permitted, and the figure marked with " " is prohibited. You can confirm the position according to the actual condition. The refrigerant flow direction is always from the collective side to the divided side. horizontal horizontal floor surface floor surface floor surface floor surface vertical floor surface floor surface vertical floor surface floor surface floor surface -8-

32 5.3 Instructions for the Electrical Expansion Valve Boxes The E.E.V.B. general information for the C-MRV and H-MRV indoor units. 1. Installation position wiring connector liquid pipe in/out Z: vertical direction X, Y: horizontal direction. Installation place The box should be installed where the place: a. do t have vibrations; b. easy to piping with the indoor and the outdoor unit, and the distance from the box to the indoor unit should t exceed a certain value; c. do t have a heat or steam source nearby; d. should be sunless and be dry; e. should be well ventilated and rainproof; f. do t have a strict ise restriction, because when working the box may make some ise; -9-

33 5.4 MPA, MP3A Installation Requirement 1. Cautions 1.1 The place should be strong eugh to support this equipment, vibrantion; 1. The place where is convenient to install the indoor unit, outdoor unit and the refrigerant pipe, and the length of the pipe is in the permitted range; 1.3 No heat source and gas source nearby; 1.4 The place has eugh space for installation and maintenance; 1.5 Don t installation in the place in the state of high temperature and high humidity for a long time; 1.6 The place with good ventilation, direct sunshine and rain; 1.7 Don t install the unit near the bedroom because of the refrigerant flow ise; Please refer to the cautions and warnings in the operation manual about the other safety cautions.. Installation Method.1 MPA, MP3A can be installed on the horizontal ceiling or the vertical wall by adjusting the fixing holder. The maintenance plate should be installed on the place easy to maintain and near the place, there should be checking hole with 600mm*600mm (adjust the fixing holder as below figure). vertical wall. The equipment has been dealt with the EPS heat insulation material, so the drainage pipe needs t any other treatments..3 The pipe connected to indoor is led from the branch pipe of the equipment. The gas pipe diameter can realize to match with different diameters by the changing pipe according to the indoor pipe diameter request..4 In installation, the equipment gradient should be in the range of ±5, or it may cause electronic expansion valve body in the equipment leakage or the other bad control failure..5 Bolt, screw cap and gasket to fix the equipment will t be supplied by factory. 3. Wiring Connection 3.1 The wire and refrigerant pipe must be connected to the corresponding place (refer to marks on the equipment and the terminal block as 1,,3). 3. Wiring diagram is sticked on the back of cover plate, and the wiring must be performed according to the wiring diagram, or the control will be bad or indoor and the equipment will be damaged. 3.3 After wiring, the wires must be fixed with the wire clip firmly, in case that the electric control parts are damaged or occurs person injury. -30-

34 5.5 Connecting figure: A A A AA A A HHaier MP3A MP3A Piping length and drop between units -31-

35 1) When connected with 8 units,indoor units refer to <admissible combination examples> ) Total length=l1+l*+l3*4+l4*4+l5*4<=100m 3) Max. piping length =(l1+l+l3+l5)<=70m 4) Max. piping length between the indoor unit and the first branch pipe<=30m 5) Max. drop between outdoor unit and indoor unit: H<=30m(indoor above outdoor);h<=0m(indoor below outdoor) 6) Max. drop between the two indoor units : h<=10m 7) Expansion valve is less than 15m to its corresponding indoor unit 8) Only wall mounted types are connected with expansion valves. 9) The expansion valves of different indoor models are different. 10)The first branch pipe must use FQG-180,the others use less than it. Combination example: 8 by 1: Haier AE07 AE07 MP3A AE07 AE07 AE07 MP3A AE07 AB09 Note: 1.AU8 can connect with max. 5 indoor units, and AU5 can connect with max. 8 indoor units, but pay attention that the total indoor capacity can t exceed 130% of outdoor cooling capacity.. The ceiling concealed unit must connect with the outdoor unit through the MPA or MP3A; the wall mounted unit must connect with the outdoor unit through the exterior EEV box, and EEV only can be installed on the liquid pipe. While for the cassette unit, because it has the built-in EEV, so it need t anything and it can connect to outdoor directly. EEV AS07-3-

36 EEV AS09 EEV AS09 Haier EEV AS09 AU5,60 EEV AS09 EEV AS09 EEV AS09-33-

37 5.6 The Order of Installation Work Commercial Air Conditioner Item Work Main points Before installation Work division -to ascertain the person responsible for installation of pipes and wiring Make installation -to ascertain the pipe installation dimension and position of electronic Work diagram expansion valve, to make control wiring system diagram Installation of indoor and -to prevent the ventilation from short circuit and guarantee repair space outdoor unit Refrigerant pipe work -Pay attention to dry, clean and seal Drain pipe work Heat insulation work Wiring work (control wire, power cord) Set every set switch Airtight test Vacuum drying Additional refrigerant Test run adjustment Training of use and maintenance -Slant downward -No gaps in the joint of heat insulation material -Choose the proper wire and cord -Should be complied with control wiring system diagram -Close all the gas, liquid valves -Should the vacuum pump that can reach 00Pa vacuity -Write down the additional refrigerant amount on the outdoor unit body and record table -Do test run to indoor unit one by one to verify if there is wrong pipes -Explain to user, simultaneously provide all the documents The above work order is general kwledge, they may be changed to be complied with the specific work site. 5.7 Attentive matters of safety Before installing, do read this [Attentive matters of safety] carefully to guarantee the proper installation. The below attentive matters are divided into [warning] and [te] two parts. When the wrong installation occur, it is very possible death and severe injury and other serious accidents will happen. For those items are listed in [warning] part. But even the items listed in [te] part can also cause serious accidents. Above all, both the two parts are very important contents related to safety, so they must be obeyed. After installation, do test run to verify everything is rmal, after that please explains the use method and maintenance method to the user according to the operation manual. Additionally, give the installation manual together with operation manual to the user and ask them to keep them properly. Warning The distributing shop, where you bought the air conditioner, or the specified shops shall do the installation work. If you do the installation work by yourself, the improper installation will cause water leakage, electric shock fire and other accidents. The installation work shall be in line with what the installation manual specified. If installation is t proper, water leakage, electric shock, fire and other accidents will occur. Install the air conditioner to a place where can definitely stand its weight. Places t firm eugh will cause drop down of unit resulting in body hurt. The installation work shall be preventive to typhoon and earthquake. If the installation -34-

38 work is t met with the requirements, overturn of the unit will occur resulting in accidents. The wiring work shall be done by a qualified person and referred to the technical standard of electric equipment, indoor wiring regulation and what the manual specified. Do use special circuit. If the capacity of the circuit is t eugh or bad work, electric shock, fire and other accidents will happen. Using the specified cable to do wiring work and connecting firmly and properly. Fix the connecting part of the terminals to prevent it from the external force. Improper connection and fixing will cause heating and fire etc. accidents. Wiring shall be kept in correct shape avoiding extrusion. After installation, the electric box cover and the external panel shall t nip the wire. Improper installation will cause heating and fire etc. accidents. When setting or moving the air conditioner do t let the air and things alike get into the refrigeration system except the specified refrigerant. If air and other things enter,abrmal high pressure will occur, which easily cause break and body injuries etc. When installing, do use the accessories or specified parts. If t using the parts specified by our company, water leakage, electric shock, fire and refrigerant leakage will occur. Do t lead the drainpipe to drain where the sulfur gas may be involved. Otherwise, the poisous gas will enter into the indoor. During installation, if refrigerant leakage occurs, do the ventilation work immediately. As soon as the refrigerant gas meets fire, poisous gas will be produce. If the refrigerant gas enters into room and meet the air blowing heater, heater or stove etc. fire source, the poisous gas may be produced. After installation, confirm there is leakage of refrigerant. Do t install the unit in a place where the combustible gas may be leaked. In any case the combustible gas leaks and accumulated around the unit, fire accident will occur. Do heat insulation work to the refrigerant gas pipes and liquid pipes to reach the purpose of heat preservation. If the heat insulation measure is t sufficient, water generated by condensing dew will drip leading to wet the floor and indoor articles. Do t damage the power line or change it arbitrarily to avoid occurrence of fire or electric shock. Do t extend the power line or using other electric appliance in the same power receptacle to avoid fire or electric shock. Note Do grounding work. Do t connect the grounding wire to gas pipe, tap, lighting rod or telephone line. Improper grounding will cause electric shock. In some places the electric leakage breaker shall be installed. If do t install the breaker, electric shock may occur. After installation, power on to do electric leakage detecting test. -35-

39 5.8 Special Work and Main Points in Installation During installation, if refrigerant leakage occurs, take ventilation measurement immediately. As soon as the leaked refrigerant gas meets fire, poisous gas will generate. After finishing installation, confirm the refrigerant gas does t leak. If the refrigerant gas leaks in the room, once it meets heater, burner and gas stove etc. fire source, the poisous gas will generate. A. Choosing of pipes According to the following indoor unit and outdoor unit installation diagram to choose the material and size of pipes and branch pipes. B. Connection of pipes 1 Method of pipe connection a. The pipe shall be as short as possible to guarantee efficiency. b. Daub the refrigerant oil on the connection and flare nut. c. When bending the pipes, give the roundness as large as possible, to avoid crashing the pipes. d. To connect the pipe, fit the center and screw the nut with hand, then use spanner or torque wrench to tighten it. The fastening torque as shown in below table. As shown in figure. e. Be careful alien matters, such as sands, water etc. shall t enter the pipes. Forced fastening without careful centering may damage the threads and cause gas Warning. Welding of pipes a. In welding, the nitrogen shall be used to avoid oxidation of the pipe inner part. b. The refrigerating pipe shall use clean new pipes. When working, it shall take steps to prevent water and dust from entering. c. When loosening and tightening the nuts, two spanners shall be used. If using one spanner, it can t reach the desired degree of tightness. Using the specified fastening torque to fasten nuts. Pipe diameter (mm) 6.35 Installation torque (N.M.) 11.8 (1.kgf.m) Fastening torque (N.M.) 13.7 (1.4kgf.m) (.5kgf.m) 9.4 (3.0kgf.m) (5.0kgf.m) 53.9 (5.5kgf.m) (8.0kgf.m) 98.0 (10.0kgf.m) -36-

40 (4) Pipe connection of the outdoor unit Referring to the installation diagram in previous information, connect the indoor unit, outdoor unit, branch pipe and electronic expansion valve together by using the pipe connection method and welding method. For AU60NFIAKA indoor and outdoor connection, please weld the low pressure side with hard solder, and weld the high pressure side with flared type. -37-

41 5.9 Test of leakage after wiring work is finished After connection of the refrigerant pipes, carry out leakage test. In this test, pressurize to the pipes as shown in the below figure by using nitrogen tank. Close the valves of the gas side and liquid side totally. The nitrogen may enter the cycle system of the outdoor unit, so that, before pressurizing, the valve rods must be fastened. (Both the gas side and liquid side). For each of the refrigerant system, pressurize from the discharge valve of gas side in procedure. When doing leakage test, it is absolutely forbidden to use oxygen, flammable gas and poisous gas. The indoor unit expansion valve must be open. 5 vacuuming of the pipes and indoor unit (using vacuum pump to vacuums, it is strictly forbidden to use refrigerant purging) a. Choose of vacuum pump: it shall choose those that can reach a good vacuity (over 00Pa)and have a large air discharge amount (over 40L/min). b. After finishing the airtight quality test and the nitrogen discharging, connect the instrumental diverter to the 3-way discharge valve, then connect the vacuum pump according to the below figure. -38-

42 c. Vacuumize ~3 hours according to the length of the pipe. When vacuuming, confirm the gas side and liquid side of the -way valve and 3-way valve shall be in full close state. d. When it is t lower than 00Pa after hours or more vacuuming, vacuums for ather 1 hour. If after more than 3 hours vacuuming it is still t lower than 00Pa, the leak part shall be found. e. When it is lower than 00Pa after more than hours vacuuming, close both the valve VL and VH of the diverter, then close the vacuum pump. Place it there to observe if the vacuity changes. If it changes, it indicates leakage exists, so the leak part shall be found. f. After finishing the above vacuuming work, replace the vacuum pump with refrigerant tank and turn to the refrigerant charging procedure Charging of refrigerant 1. Calculation of additional charging amount of refrigerant After finishing vacuuming work, replace the vacuum pump with refrigerant tank and turn to the refrigerant additional charging procedure. Calculation of additional charging amount of refrigerant Before the air conditioner leaving factory, the refrigerant-charging amount does t include the refrigerant in the site pipe part. Calculate the refrigerant amount for the site pipe first, then do the additional refrigerant charging work. Refrigerant charging amount when air conditioner leaves factory refer to the specification. Calculation method: According to the liquid pipe dimension of site pipe and actual length to calculate the additional refrigerant-charging amount. Calculation formula: Site refrigerant charging amount=length of liquid pipe x additional refrigerant charging amount/m For example: additional charging amount R (kg) = (L1x0.030kg/m)+(Lx0.065kg/m) L1: Total length of liquid pipe diameter 6.35mm; L: Total length of liquid pipe diameter 9.5mm.. Charging of refrigerant Close all valves of outdoor unit, and charge refrigerant from air discharge valve of gas side. When can t charge the specified amount, firstly, open all the valves, both liquid side and gas side, of outdoor unit, then switch the valve of gas side to close state a little. Under this condition, do cooling operation and charge refrigerant from the discharge valve of gas side. At this time, adjust the valve of the refrigerant tank to make the refrigerant in Gas State when it is absorbed by system. When refrigerant leakage making refrigerant lack in system occurs, the intrinsic refrigerant of the system shall be recovered and recharge it according to specified amount. 3. Opening of the refrigerant pipe Open all the valves of outdoor unit -39-

43 5.11 Refrigerant R -40-

44 5.1 Electric cautions: Power supply specs Connecting wire Communication Wired controller model Circuit Power Power source wire wire breaker cable core section area core section area AU8FHAIA 1PH, 0-30V~, 30A 5mm AU34FHAIA 50Hz 1PH, 0-30V~, AU5FIAKA 50A 10mm 50Hz 3PH, V~, AU5,60NFIAKA 0A 4 mm mm 50Hz AE*FCAMA 3 1PH, 0-30V~, AS*FCAIA 15A 1.5mm mm 50Hz AB*FCAIA 3 Remark: 1. Must t connect the power cable and communication wire incorrectly. Forbidden to connect the power cable and communication wire with one muti-core cable, and they must be wired separately, keep proper distance between them to ensure the air conditioner run rmally.. Communication wires among indoor units should be hand in hand type, and decrease the branch, also the shielded layer should be connected together and be earthed on one point. 3. All indoor communication wires will be connected to the communication bus wire (-core), C1 and C are n-polar. 4. Because the indoor unit adopts EEV control method, when a sudden power off occurs, the EEV maybe keep some angle. If indoor unit and outdoor unit connect to power supply separately, when some indoor units running in cooling mode, when powered off, because the EEV does t reset, the indoor units maybe drop water, or ice up. We recommend that the indoor unit connect to power supply from the outdoor unit, or use one power supply with the outdoor unit. If the indoor unit need connect power supply individually, the personnel must explain to the customer that he (she) must switch off the unit with wired controller or remote controller, then he (she) can shut off the indoor unit. If there is accidental power failure, please firstly power on all the indoor units after power on, in order to reset the indoor EEV. 5. When wiring the MPA or MP3A, please ensure that the power source and the communication wires of MPA or MP3A must correspond with the relative indoor units. 6. AS*FCAIA and the cassette unit will t be connected with the MPA or MP3A. 7. If the ceiling concealed indoor unit is with the electric heater, the circuit breaker will vary accordingly. -41-

45 5.13 Indoor unit number setting: Indoor unit has two kinds of control type: infrared control and wired contrl, so the corresponding unit address setting will vary as the following: for the infrared control type unit, set with the address setting controller; for the wired control type unit, set with the dip switch, and the unit number is from 1 to 8. (1) Number setting for wired control type unit: Indoor unit No Note: 1. Dip switch at ON position shows 0.. If there are t only the infrared control type unit also the wired control type unit in the whole system, please set the wired control type unit number firstly and then record the numbers, then set the infrared control type unit number, to avoid the repeated unit number. () Number setting for infrared control type unit: Please refer to the manual of address setting controller ASC The dip switch setting when out of factory: AE*FCAMA: Unit No.: 3; 3 fan speeds; wired control type; exterior EEV. That is: SW01-1 ON, SW01- OFF, SW01-3 ON, SW01-4 OFF; SW0-1 ON, SW0- OFF; SW03-1 ON, SW03- ON. AB*FCAIA: Unit No.: 3; 3 fan speeds; infrared control type; built-in EEV. That is: SW01-1 ON, SW01- OFF, SW01-3 ON, SW01-4 OFF; SW0-1 OFF, SW0- ON; SW03-1 OFF, SW03- ON. When installation, the installer should adjust the setting according to the actual condition. The ports functions for AB and AE unit (some are optional): port Corresponding parts port Corresponding parts CN4 Negative ion generator or high-voltage CN5 Gas/liquid pipe temp. sensor accumulator CN6 EEV CN7 Pump motor CN10 Indoor motor CN11 Float switch CN1 Swing motor CN13 Remote receiver CN14 Wired controller CN18 Neutral line of terminal block CN19 Auxiliary electric heating CN0 Live line of terminal block CN Auxiliary electric heating CN4 Room temp. sensor ( AE* unnecessary) CN5 Communication of EEV box CN9 Pre-set -4-

46 Cassette unit installation: -43-

47 -44-

48 -45-

49 -46-

50 Installation for wall mounted unit Please read these "Safety Precautions" first then accurately execute the installation work. The precautionary points indicated herein are divided under two headings:! WARNING and! CAUTION those points which are related to the strong possibility of an installation done in error resulting in death or serious injury are listed in the! WARNING section. However, there is also a possibility of serious consequences in relationship to the points listed in the! CAUTION section as well. In either case, important safety related information is indicated, so by all means, properly observe all that is mentioned. After completing the installation, along with confirming that abrmalities were seen from the operation tests, please explain operating methods as well as maintenance methods to the user of this equipment, based on the owner's manual. Moreover, ask the customer to keep this sheet together with the owner's manual. WARNING Please entrust installation to either the company which sold you the equipment or to a professional contractor. Defects from improper installations can be the cause of water leakage electric shocks and fires. Execute the installation accurately, based on following the installation manual. Again improper installations can result in water leakage, electric shocks and fires. Please install your air conditioner on a wall or any place which can holder the weight of the air conditioner. And it cant be installed on a n-professional metal structure (such as a burglary-resisting net). Otherwise injury would occur due to a falling of the unit. Execute the prescribed installation construction to prepare for earthquakes and the strong airs of typhoons and hurricanes, etc. Improper installations can result in accidents due to a violent falling over of the unit. Wiring shall be done with the specified cable and the connection shall be firm and reliable. And the terminal connector shall be fixed firmly and reliably t to let external force exercise on the cables. Any improper connection or fixing would cause heat, fire, and other accidents. Wiring shall be done in a correct shape t to make any section rise upward, and accurately install the air conditioner. The cable shall t be clamped by the lid or outer plate. Any improper installation would lead to fire, heat, or other accidents. When setting up or moving the location of the air conditioner, do t mix air etc, or anything other than the designated refrigerant (R) within the refrigeration cycle, for such mixing would result in rupture and injury caused by abrmal high pressure. Always use accessory parts and authorized parts for installation construction. Using parts t authorized by this company can result in water leakage, electric shock, fire and refrigerant leakage. The drain pipe must t be placed or connected into the sewage tank where harmful gas such as sulphurous gas and etc would exist, otherwise the harmful gas would enter the room. During installation, if the refrigerant is leaked, please immediately take measures of ventilation, otherwise a harmful gas would be generated whenever the refrigerant meets fire. After installation, please ensure that the refrigerant is t leaked, because the leakage of refrigerant would produce a harmful gas if it meets fire or heating stoves. Don't install the air conditioner where a flammable gas would be probably produced, otherwise in case the flammable gas is leaked and exists around the unit, fire would be caused. For the drain pipe, follow the installation manual to insure that it allows proper drainage and thermally insulate it to prevent condensation. Inadequate plumbing can result in water leakage and water damage to interior items. The refrigerant gas pipe and liquid pipe shall all be thermally insulated to preserve the temperature. Any improper insulation would make the unit moist and the water would drop onto the floor or wet the indoor items. -47-

51 PRECAUTION Execute proper grounding. Do t connect the earth wire to a gas pipe, water pipe, lightening rod, or a telephone ground wire. Improper placement of earth wires can result in electric shock. An electric leakage breaker must be installed, otherwise electric shock or other accidents would occur. After completion of the installation, the air conditioner shall be electrified to check for electric leakage. Preparation for installation Installation Tools 1. Screw Driver (flat head, wabbler, triangle). Steel Saw 3. 60mm Drill 4. Inner Hexagon Spanner 5. Shifting Spanner 6. Spanner 7. Pipe Cutter 8. Pipe Expander 9. Knives 10. Clippers 11. Leakage Checker or Soap Liquid 1. Measuring Tape 13. Scraper or File 14. Refrigeration Oil Self-contained Accessories No. A B C D E F Non-adhesive Adhesive Connecting Gypsum Drain hose Tape tape Hose powder Name of Parts Heat insulation material Electrical Requirements Power supply voltage: Single Phase 1PH, 0-30V~, 50Hz. A specialized power supply wire, which shall be installed by a competent person as per the rules of the national standard. Power supply must be grounded effectively. An electric leakage breaker shall be installed. Layout of power supply wiring shall be Y connection. If the power supply wire is damaged, it must be replaced by the manufacturer or its service center or professional person (the power supply wire shall be self-contained). For connection of the power supply plug, L shall be connected with the live wire, N shall be connected with netural line, shall be connected with earth wire. Power supply wire parameters:h05rn-f,3 G( )mm ; Signal wire parameters:h05rn-f, X( )mm. (User shall self-provide signal wire ) Note:The singnal wire and connection wire should be provided for oneself. The singnal wire must be shielded wire! WARNING BE SURE TO READ THESE INSTRUCTIONS CAREFULLY BEFORE BEGINNING INSTALLATION. FAILURE TO FOLLOW THESE INSTRUCTIONS COULD CAUSE SERIOUS INJURY OR DEATH, EQUIPMENT MALFUNCTION AND/OR PROPERTY DAMAGE. BE SURE TO READ INSTALLATION MANUAL FOR INDOOR UNIT WITH THIS MANUAL. -48-

52 1.Accessories Confirm accessories shown below are attached in the bag with this Installation manual. Accessories Delivered with Your Air Conditioner Please check if your unit is delivered with the following accessories. No. Name and shape Remote controller Batteries Mounting plate Drain hose 5 4x5 screw Expansion bushing 6 7 Cement steel nail 8 Piping hole cover 9 Screw 10 Plastic supporting plate Qty Indoor Unit Install the indoor unit where the weight of the unit can be supported. Install the indoor unit where the heat source and steam source are t close and the Unit inlet and outlet are t blocked. Install the indoor unit where the drainage is easy and the outdoor unit can be Easily connected. Install the indoor unit where its cold air and hot air can be easily sent to all the comers of the room. Install the indoor unit where the power socket is near and there is sufficient space around the indoor unit. Install the indoor unit where there is T.V set, radio set, and wireless appliance Underneath, and the sunlight lamp is over one meter away. If the remote controller is installed on the wall, the indoor unit shall be ensured to receive The signal while the sunlight lamp is on. Method for Cutting and Expanding Pipes. When the pipe is too long or the mouth is damaged, the pipe needs to cut or expanded. 1.cutting hose.removing burr 3.Put on nut 4.Expand Hose A Hose Expander Expansion Size Hose dia mm(1/4) 1.7 mm(1/) Size (mm)a Correct Not Correct Tilting cracks on expanded mouth burr incomplete too long -49-

53 When the mounting plate is firstly fixed Commercial Air Conditioner 1. Carry out, based on the neighboring pillars or lintels, a proper leveling for the plate to be fixed against the wall, then temporarily fasten the plate with one steel nail.. Make sure once more the proper level of the plate, by hanging a thread with a weight from the central top of the plate, then fasten securely the plate with the attachment steel nail. 3. Making a Hole on the wall and Fitting the piping Hole cover Make a hole of 60mm in diameter, slightly descending to outside the wall. Indoor side Install piping hole cover and seal it off with putty after installation. Wall hole 60mm Outdoor side Thickness of wall 4. Drawing of pipe (Section of wall hole) Piping hole pipe Rear piping Draw pipes and the drain hose, then fasten them with the adhesive tape. Left Left-rear, piping In case of left side piping, cut away, with a nipper, the lid for left piping. In case of left-rear piping, bend the pipes according to the piping direction to the mark of hole for left-rear piping which is marked on heat insulation materials. a. Insert the drain hose into the dent of heat insulation materials of indoor unit. b. Insert the indoor/outdoor electric cord from backside of indoor unit, and pull it out on the front side, then connect them. c. Coat the flaring seal face with refrigerant oil and connect pipes. Cover the connection part with heat insulation materials closely, and make sure fixing with adhesive tape. Lid for right piping Lid for under piping pipe Heat insulation material Drain hose Lid for left piping Piping Pipe supporting plate Indoor/Outdoor Electric cable Fix with adhesive tape Indoor/outdoor electric cord and drain hose must be bound with refrigerant piping by Protecting tape. -50-

54 Other direction piping Cut away, with a nipper, the lid for piping according to the piping direction and then bend the pipe according to the position of wall hole. When bending, be careful t to crash pipes. Connect beforehand the indoor/outdoor electric cable, and then pull out the connected to the heat insulation of connecting part specially. 5.Fixing the indoor unit body Hang surely the unit body onto the upper tches of the mounting plate. Move the body from side to verify its secure fixing. In order to fix the body onto the mounting plate, hold up the body aslant from the underside and then put it down perpendicularly. Putty Electric wiring When connecting the cord before installing the indoor unit Insert the cord from the back side of the unit, then pull it out on the front side. Loosen the screws and insert the cord ends fully into terminal block, then tighten the screws. Pull the cord slightly to make sure the cords have been properly inserted and tightened. After the cord connection, never fail to fasten the connected cord with the wiring cover. Note: when connecting the cord, confirm the terminal number of indoor and outdoor units carefully. If wiring is t correct, proper operation can t be carried out and will cause defect.! CAUTION After connecting the piping, check the joints for gas leakage with gas leakage detector. HOW TO CONNECT WIRING TO THE TERMINALS A. For solid core wiring (or F-cable)(Fig.17A) (1) Cut the wire with a wire cutter or wire-cutting pliers, then strip the insulation to about 5mm of the exposed solid wire. () Using a screwdriver, remove the terminal screw (s) on the terminal board. (3) Using pliers, bend the solid wire to form a loop suitable for the terminal screw. (4) Shape the loop wire properly, place it on the terminal board and tighten securely with the terminal screw using a screw driver. B. For strand wiring (Fig.17B) (1) Cut the wire with a wire cutter or wire-cutting pliers, then strip the insulation to about 10mm of the exposed strand wiring. () Using a screwdriver, remove the terminal screw (s) on the terminal board. (3) Using a round terminal fastener or pliers, securely clamp a round terminal to each stripped wire end. (4) Position the round terminal wire, and replace and tighten the terminal screw using a screw driver. Fig. 17 Strip 5mm A. Solid Insulation Loop Strip 10mm B. Strand wire Round terminal After passing the connection cord and power cable through the insulation tube, fasten it with the cord clamp, as shown in Fig

55 Fig. 18 Insulation tube Cord clamp Wire Screw with special washer Round terminal Terminal board Wire Screw with special washer Round terminal Use VW-1, 0.5 to 1.0 mm thick, PVC tube as the insulation tube. Check the Layout of the Drain Pipe and Connection Wires The drain pipe should be placed underneath, and the connection wires should be placed upside; and the drain pipe especially the section inside the machine and indoors must be wound up with insulating material to preserve heat. The drain pipe shall be sloped and concave and convex shall occur along the whole pipe. And the cases as the right figure indicates shall t occur. Installation check Is power supply voltage required? Is water completely drained to outdoors? Are power wire and connection wires between indoor and outdoor units correctly connected? Is any gas leaked from the pipe connectors? Are series numbers of the terminals on the indoor and outdoor units corresponding to each other? Is the connection section of the auxiliary pipe insulated? Is the indoor unit fixed firmly? Is ise big? Trial Operation The person who has completed this installation shall be requested to conduct a test operation for check: Is the temperature adjuster working rmally? Does the location for installation conform to requirements? Winding up with Protective Plastic Tape The connection pipes, drain pipe, and the connection wires shall be wound up with PVC tape. Notes: The connection pipes shall also be wound up with insulating material to preserve the temperature. The airing direction shall be from bottom to top. -5-

56 Ceiling concealed -53-

57 Commercial Air Conditioner -54-

58 -55-

59 Commercial Air Conditioner -56-

60 Commercial Air Conditioner -57-

61 6. Parts and Functions AU8FHAIA, AU34FHAIA: AU5, 60: -58-

62 Ceiling concealed unit: -59-

63 Wall mounted unit(as07~1): signal receiver window air inlet grille Haier air filter(inside) air outlet grille louver Wall mounted unit (AS18): air inlet emergency switch filter remote signal receiver louver power indicator timer indicator operation mode indicator AC14FCBHA, AC18FCBHA Operating Control Panel POWER OPER TIMER COMP EMER 3 Emergency switch 3 Remote Control Signal Receiver 4 Power Indicator Lamp 5 OPERATION Indicator Lamp 6 TIMER Indicator Lamp 7 Compressor Run Lamp 8 Intake Grill 9 Air Filter 10 Up/Down Air Direction Flaps 11 Right/Left Air Direction Louvers (behind Up/Down Air Direction Flaps) -60-

64 7. Controller functions 7-61-

65 -6-

66 -63-

67 -64-

68 -65-

69 -66-

70 Commercial Air Conditioner -67-

71 Commercial Air Conditioner -68-

72 7 the following. -69-

73 HEAT Commercial Air Conditioner -70-

74 Commercial Air Conditioner HEAT -71-

75 Commercial Air Conditioner HEAT -7-

76 Commercial Air Conditioner HEAT -73-

77 7 Commercial Air Conditioner HEAT -74-

78 7-75-

79 8. Electrical Control Functions 8.1 Outdoor control principle: No Item AU8FHAIA AU5FIAKA AU5NFIAKA 1. Startup period in cooling 1. Startup period in cooling 1. Startup period in cooling mode: high mode: high mode:. Cool, Dry mode:. Cool, Dry mode: TA>16, high speed Current state is Fan OFF Current state is Fan OFF TA 16, low speed mode: mode:. Cool, Dry mode: TC>1 : low speed TC>37 : low speed TA>3, high speed Current state is low Current state is low speed: 15 TA<31 : speed: TC>50, med speed TC>45, high speed TC>30, med speed TC<30, fan off 40 <TC < 44, med TC<15, fan off Current state is med speed: speed Current state is med TC>47, high speed TC<39, low speed speed: TC<40, low speed TA<15 : TC>4, high speed Current state is high speed: TC<30, fan off TC<, low speed TC<41, med speed TC>50, low speed Current state is high In low speed: In low speed: speed: TC<40, lower fan off TC<36, lower fan off TC < 39 Current state is Fan motor TC>4, lower fan startup TC>38, lower fan startup 1 med speed: control 1. Startup period in heating: TA 0, low speed 1. Startup period in heating: TA<0, high speed 1. Startup period in heating: High speed. Running state in High speed. Running state in heating: heating:. Running state in heating: TA>17 : TA>17 : TA>17 : running units capacity running units capacity 1 running units capacity 1HP, low speed will be ON HP, low speed will be ON 1HP, low speed will be and OFF in turns. and OFF in turns. ON and OFF in turns. Other condition: running units capacity > Other condition: TE<7, high speed 1HP, low speed TE<7, high speed TE>10, low speed 17 >TA > 15, low TE>10, low speed 3. TE>14, lower fan off speed TE<1, lower fan startup 14 >TA > 10, med speed TA<9, high speed EEV In COOL, DRY, DEFROST state, EEV will open fully with 480 pulse. -76-

80 3 4 control In heating mode, EEV will be adjusted due to the overheating value: SH= TS-TC 1. Adjust range: according to the compressor frequency, min open angle of EEV will be different: high frequency, 10; med frequency, 110; low frequency, 90; the max open angle: 470/350. Overheating modification: according to the discharging temperature, modify the overheating value, when Td>100, overheating value will decrease at the standard overheating value; when Td 70, overheating value will add at the standard overheating value 1. Secure operation conditions of 4-way valve: After the outdoor receives the heating signal from indoor unit, if the 4-way valve is t electrified before the compressor starts up, the unit will enter the 4-way valve secure operation. After defrosting is over, the unit will enter the 4-way valve secure operation.. 4-way valve secure operation control: 4-way In heating mode, After the outdoor receives the startup signal from indoor unit, the valve compressor will start up, (fan motor shutoff, EEV close) and when the frequency rises up secure to 50Hz for 10 seconds, 4-way valve will reverse (meanwhile, fan motor will enter the operation target speed, EEV enters the open angle of soft startup) and the unit enters soft startup period. In defrosting, when the defrost condition is met, the compressor frequency will decrease to 50Hz, 4-way valve will reverse (meanwhile, fan motor will enter the target speed) and the unit enters soft startup period way valve control in OFF state: 4-way valve will close after compressor stops for 30 minutes. 1. Enter condition: when compressor runs for 45 minutes in all in heating mode, by checking 1. Enter condition: when compressor runs for 45 minutes in TE and TA, if the all in heating mode, by checking TE and TA, if the below below conditions can conditions can be met for continuous 5 minutes, the unit be met for will enter defrosting operation: TE C TA-α, herein, continuous 5 Defrosting C:TA<0, C=0.8; TA 0, C=0.6 minutes, the unit will control α:set as 1(L),10(M),8(H) according to the enter defrosting actual condition. At the easily defrosting place, set as H; at operation: the t-easy-defrosting place, set as L; when out of factory, When Ta<, TA-TE set as M 9 for continuous Temperature limitation: -15 E TE E minutes; or Te < -1 for continuous 5 minutes; When Ta, Te<-5 for continuous 5 minutes; -77-

81 Electric heater control Unloading valve SV1 control Spray valve SV control Pressure switch control. Defrosting control: When defrosting condition is met, compressor frequency will go down to the min. frequency, and 4-way valve will be powered off and turn into cooling mode (fan motor off, EEV in soft startup open angle); compressor frequency rises up to 78Hz and begins to defrosting operation. 3. Quit condition: TE is over 7 for 60 seconds in all or is up to 1, defrosting is over; Defrosting accumulative time is up to 10 minutes, defrosting is over. 1. When TA 7, if the compressor stops running, electric heater will be electrified;. When TA 7, or when compressor starts up, electric heater will be off; and temp. difference is To balance pressure: it will open 1 minute before compressor starts up, and keep open in soft startup period after compressor starts up until the soft startup is over; in the remaining operation and 10 minutes later after shutoff, SV1 will open;. Improve low pressure: in heating mode, when (TC TS TE)min. value -13 SV1 open, temp. difference is 3. Adjust the SV according to the discharging temperature: when TD 115, SV will open; when TD 110, SV will close. High pressure switch protection: When input level of pressure switch is 1, it shows there is protection. When input level of pressure switch is 0 for a while, it shows high pressure beginning; compressor stops and the unit alarms. The alarm can be resumable, the unit will alarm in 3 minutes when compressor is standby. Low pressure switch protection: When input level of pressure switch is 1, it shows there is protection. When compressor is running, if low pressure switch has acted for 3 minutes continuously, the unit will alarm. When compressor stops, if low pressure switch has acted for 30 seconds continuously, the unit will alarm. When compressor starts up, low pressure switch will be shielded within 3 minutes. In defrosting and in 6 minutes after defrosting is over, low pressure switch will be shielded. -78-

82 9 In cooling mode, frequency will be calculated according to the horse power of the running indoor units: 1. Every indoor unit will confirm 8 capacity codes Cooling target frequency according to the difference between the set temperature will be confirmed due to the and the ambient temperature; then add all the capacity indoor running horse power code of the running indoor unit. and the outdoor ambient. Divide the outdoor capacity into 13 capacity classes due Compress temperature: to the frequency; every capacity class is corresponding or capacity F=C1(P-C)+C3(T-35)+C4 with the different indoor capacity code; modify the relative output Herein: C1=, C=160, indoor capacity code due to the different ambient control C3=64, C4=400; temperature; 3. Compressor will confirm its target frequency according to the sum of indoor capacity code; Heating target frequency will be confirmed due to the indoor running horse power and the outdoor ambient temperature: F=C1(P-C)+C3(7-T)+C4+C5(C6-TZ) Herein: C1=16; C=160; C3=3; C4=4500; C5=300; C6=

83 8. Indoor electric control functions: Control No AE*FCAMA AS*FCAIA AB*FCAIA item In cooling mode, the adjustment by the over heating: SH= TC1(gas pipe)-tc(liquid pipe) 1. Adjust range: min. angle: 60/65, max. angle: 470/350(data will take EEPROM as standard). Overheat modification: according to the discharging temperature, modify the overheat state, if Td > 100, the overheat value will add degree at the base of standard degree; 3. Open modification: when EEV is at min. angle, the unit will measure the difference between Tliquid and Ta at the interval of 5 minutes, if the 1 EEV control difference is within 5 degree, the valve will be back to base open angle and modify the open angle due to the overheat state In heating mode, adjust the open angle according to the conformity of liquid pipe temperature. 1. Adjust range: indoor unit startup, min open angle: 100, max open angle: 470; indoor unit standby: open angle: 60.. The indoor EEV open angle will depend on the temperature difference between indoor liquid pipe temp. and average liquid temp. of all running indoor units. (if lower than average temp., the valve will open; if high than average temp., the valve will close. Anti-freeze control in cooling mode: When liquid pipe temp. is below 7 degree for 40 minutes, or when liquid pipe temp. is below 4 degree for 10 minute, the unit will enter anti-freeze function. At this time, the current indoor EEV will close, and the fan motor will turn into low speed from the current speed. After the anti-freeze function has worked for 10 minutes, and liquid pipe temp. is over 7 degree, the unit will quit anti-freeze control (take the data in Fan motor EEPROM as standard). control Anti-cold air control in heating mode: When liquid pipe temp. is below 33 degree, indoor fan speed will turn into low speed from the set speed; when liquid pipe temp. is below 5 degree, indoor motor will stop. When liquid pipe temp. is over 30 degree, indoor fan speed will turn into low speed from stop; when liquid pipe temp. is over 35 degree, indoor motor will enter the set speed (take the data in EEPROM as standard). -80-

84 8.3 Temperature compensation adjustment: For infrared control type unit, the temperature compensation can be adjusted. But for wired control type unit, there is temperature compensation. Set the EEPROM by SWING (or SLEEP) button. For example: Infrared control in heating mode, press ON/OFF button to switch on the unit. Take the 4 degree set temperature as the base point, press SWING (SLEEP) within 5 seconds, it will sound times, the unit will enter the heating temperature compensation mode, at this time, if you set the temperature to 5 degree and switch off, the temperature compensation will be +1 degree; if you set the temperature to 6 degree and switch off, the temperature compensation will be + degree, and so on, the max. compensation can be +6 degree ( 30 degree); if you want to cancel the compensation, adjust the temperature back to 4 degree. Infrared control in cooling mode, press ON/OFF button to switch on the unit. Take the 4 degree set temperature as the base point, press SWING (SLEEP) within 5 seconds, the unit will enter the cooling temperature compensation mode, at this time, if you set the temperature to 3 degree and switch off, the temperature compensation will be -1 degree; if you set the temperature to degree and switch off, the temperature compensation will be - degree, and so on, the max. compensation can be -8 degree ( 16 degree); if you want to cancel the compensation, adjust the temperature back to 4 degree. Read the temperature compensation value: Infrared control type change to cooling mode, the set temperature is 30 degree, in high speed. Press SWING (SLEEP) 7 times within 5 seconds, the running LED will flash as the current temp. compensation value. Infrared control type change to heating mode, the set temperature is 16 degree, in high speed. Press SWING (SLEEP) 7 times within 5 seconds, the running LED will flash as the current temp. compensation value. 8.4 Unit debugging: 1. Confirm indoor unit quantity After the unit is electrified, you can check the indoor unit quantity by the outdoor dip switch or the testing board. The display quantity must be in accordance with the actual quantity. If t, please check if there is repeated unit No. or if the dip switch is broken, and if the communication wire is connected correctly.. Confirm indoor EEV FAQ:.1 The EEV communication wire is t in accordance with the indoor unit. If all the indoors are running, the operation will be rmal; when the only one indoor unit is running and it can t cool, while the EEV of the unit t running opens.. The live wire and the neutral wire of the EEV power cable is t in accordance with those of indoor unit power cable, E7 failure occurs..3 The coil temperature sensor is t in original place or t fixed well, which cause EEV t work properly. The efficiency will be bad or outdoor unit will be liquid return. -81-

85 Only No.1 unit in cooling If No.1 unit in cooling If No. 1 unit in cooling if, OK If t Short connect the corresponding terminal, open the EEV compulsorily. If it can open, check if the EEV communication wire is in accordance with that of indoor unit and modify. Switch on all the indoor units in turn If the refrigerant of the unit t running t flow if If the refrigerant flows, check if the EEV communication wire is in accordance with that of indoor unit and modify. If Can t open Check if EEV is installed properly, tap the EEV body, or reset. Still t Replace EEV PCB Still t Replace EEV -8-

86 3. Confirm cooling operation start Set the unit in cooling mode and begin to run Once outdoor stops, the unit must run again minutes and a half later. If indoor unit blows cold air Confirm compressor state If air circulation is OK Confirm the louver direction Make all indoor units running If temp. drop between air outlet/indlet is rmal If the operation voltage is OK (30V±10%) Check power voltage and power circuit. If the running current is 15% of the minal value (at max. frequency) If working pressure is rmal Check indoor/outdoor temp. Check piping length and refrigerant charge. Check compressor running frequency and if there is abrmal ise rmal -83-

87 4. Confirm heating operation start Set the unit in heating mode and begin to run Once outdoor stops, the unit can work only minutes and a half later If blowing warm air? Confirm compressor state If air circulation is OK Confirm the louver direction Make all indoor unit running If temp. drop between air outlet/indlet is rmal If the operation voltage is OK (30V+10%) Check power voltage and power circuit. If the running current is 15% of the minal value (at max. frequency) If working pressure is rmal Check indoor/outdoor temp. Check piping length and refrigerant charge. Check compressor running frequency and if there is abrmal ise rmal -84-

88 8.5 PCB information AU8, A B C D D C B A Title Number Revision Size A Date: 3-Sep-005 Sheet of File: C:\Documents and Settings\dupeng\ 桌面 \ 杨平发过来的关于 80 的控 Drawn By: IC1 MB89P857 CN1 GND R7330 R4330 R5330 R6330 R9330 R8330 PWM_W PWM_V PWM_U PWM_X PWM_Y PWM_Z ERR AC_COMP AC_IN TE TD TA TS TC Tc AVCC AVSS IPM AVR INT NC_GND TX_IN RST MOD1 MOD XIN XOUT GND NC PMV_D PMV_C PMV_B PMV_A DCRST DO DI SK CS F_DOWN F_UP HEATER 4WAY COP-HEAT MID FAN_SW NC NC_GND PENGSE PCT SERIAL O3 +5V TX_OUT PFC_OUT PFC_IN R LED3 RED GND CN14 R17 0K R0 0K R1 0K R 0K R3 0K R401K R411K R41K R431K R441K CA1 1000PF*8 +5V GND R610K C V GND +5V R34 1K IC C18103 C R1 100K C0103 C 103 C GND VD VD GND DQ R35 1K R18 10K +5V R AC_IN AC1_IN TX_IN HPRE_SW T1 T IC13 ICEA165 SOFT FB IS DRAIN NC VCC GND C9 104 SGND R6 R7 CD1.UF C 47 R 47K/W VD11 FR106 CD3 10UF R3 560K/1W SGND VD1 FR10 R71 10 R8 7 R1 471 ZD1 11V VD14FR10 VD15 FR10 VD16 FR10 VD1 HER04 VD17 FR10 R53 5.6K R545.6K R55 5.6K R76 5.6K R56 5.6K CD8 100UF CD9 100UF CD10 100UF CD1 1000UF CD11 100UF GND +1V VD0HER04 IC1 TLP41 ZD 18V CN CN3 CN IC4 ULN003 CN15 +1V GND R67 10K IC6 4C IC7 93C46 C V GND R66 10K +5V CN4 CN5 +5V CN8 CN9 CN10 CP50 CN11 CP50 CN1 CP50 CN1 CN7 C3 0.47UF ZEN1 561 L1 T38003 C6 0.47UF C1 FDG_1 ZEN 561 C4 47 C5 47 PTC1 CN6 CN CN3 CN4 R4 100 R5 100 C7 103 C8 103 GND IC5 ULN803 GND +1V IC3 OMM1007 DNC+1VCGNDNCNCDINBDINADO_aDO_ADO_BDO_b+5VIN1INNCC C GND +1V +5V GND CD6 100UF CD4 100UF CD7 100UF CD5 100UF C10104 C1104 C C GND ZD3 5.6V ZD4 5.6V ZD6 5.6V ZD5 5.6V GND R13100K R14100K GND A B C GND DQ DQ R65 10K R64 10K R69 4.7K R70 4.7K R45 10K R46 10K +5V GND R63 10K C V GND CD16 16V/100UF C V GND R68 10K CD 1UF CN19 R3 560 LED RED +5V TX_IN +5V TX_OUT TX_OUT R48 1K R15 180K VD CD13 100UF VD V AC1_IN GND C8 104 CD17 16V/100UF +5V CN5 CN31 CN30 +1V GND R7 10K AC_IN +5V R GND R74 10K R75 1K C4 103 PFC_IN PFC_IN PFC_OUT PFC_OUT C CD18 0UF +5V +1V GND VD FR10 CD0 100UF CD1 4.7UF CD 4.7UF CD3 4.7UF CD4 4.7UF CD5 4.7UF CN13 CN16 R78 K DQ R79 K R38 1K R80 K R39 1K R81 100K C R77 K C 103 VD V R8 3K R83 1K +5V GND CD15 100UF R9 100 C9 103 HPRE_SW IC TMP86FH46N SS/TEST H,C 595SI 595SCK 595RCK 4051S1 4051S 4051S3 START 4051IN TO857 FR857 FR A 1007B SERIAL COM_LED R1010K R84100 R85100 GND VDD TEST XOUT XIN VSS SCL SDA R47 10K GND GND J7 J8 +5V R87 K R86 10K JP JP1 CN6 +5V R91 10K GND GND SW04 SW05 +5V R93 K R94 K R95 K R96 100K R9 K STOP P47 P40 P41 P4 P43 P44 P45 P46 P33 P34 P35 P36 P37 VREF AVDD AVSS P1 P P00 P01 P0 P03 P04 P05 P06 P07 P10 P11 P1 P13 P14 P15 P30 P31 P3 P0 _RST 9 CN7 XP-9A +5V GND SW06 SW07 R50 10K R51 10K UP DOWN Pd(NOP) Te Td Ta Ts HIV LOWV V-IN Ñõ É ÅçÉä ËÄÍ ¼ÓÈÈ ø ç»ú CJ1 +5V R99 10K GND LED4 RED GND LOW J6 J5 J4 J3 +5V CN35 Ð ÔØ R C SV SV CN34 DQ R97 1K R98 1K C5 104 C V GND LPRE_SW LPRE_SW RA1 RA-4(10KX4) IC9 PST600D RL1 JTN1AS RL9 JQ-1A RL JQ-1A RL3 JQ-1A RL4 JQ-1A RL5 JQ-1A RL8 JQ-1A RL7 JQ-1 RL6 JQ IC CX1 10MHz CX 16.0MHz JP1 JP HEAT COOL GND CD14 16V/100UF C R88 10K SERIAL C RA RA-4(10KX4) +5V R31 10K CT CT 803 GND CT_IN CT_IN R36 1K C R37 1K IC10 PST600D +5V C30 104, 34FHAIA: Commercial Air Conditioner -85-

89 AU5FIAKA PCB circuit diagram: -86-

90 Commercial Air Conditioner AU5,60NFIAKA PCB circuit diagram: V +5V SKCN30 TXD1 RXD GND3 4 ÏÔʾ¹ 5 XH5-5»Æ +5V R301 R30 R N4148 D301 D30 D k 4.7k 4.7k R R R P3. TXD1 RXD1 +5V +5V R38 R39 100k 4.7k IC303E IC303D RESET C36 74HC14 74HC14 uf D D V R331 10k R k D313 C V 14 IC303F Z V 74HC14 R333 1k +5V R334 10k QP301 PNP_3906 CN105 D C B A D304 D305 D306 C30 C303 C V R307 R N4148 D307 D k 4.7k +5V +5V CN303 SK TXD1 RXD R309 GND R Í Ñ 100 XH5-5À D309 D310 C305 C C uF C307 DACN304 DB 1 HBS XH-ºì 100uF C310 C uF 100uF 4 - Z_5.6V QN301 Z30 Z304 QN30 Z303 Z305 TXD0 RXD0 IC309 9 d_outb D_INA 10 NPN_A NPN_A D_OUTB D_INB 11 D_OUTANC 1 d_outa NC +5V 13 Vcc GND C31104 R31 100k 14 IN Vin C31 04 R k IN1 NC 16 NC D_OUT MM V CN311 +5V Tsink 1 R313 P XH-½ðÉ«R314 C313 10k /1% 47 CN31 +5V Tt 1 R315 P XH-ÂÌ R316 C314 10k /1% 47 CN313 +5V Te 1 R317 P XH- R318 C315 10k /1% 47 CN314 +5V Ta 1 R319 P XH-»Æ R30 C316 10k /1% 47 CN315 +5V Ts 1 R31 P0. 70 XH-ºÚ R3 C317 10k /1% 47 CN316 +5V Td 1 R33 P XH-À R34 C318 47k /1% 47 P0.0 P0.7 8 P.3 P0.5 7 P.4 P0.4 P0.3 6 P0. P0.1 5 P V P. +5V 1 R36.7k R37.7k P.1 IC GNDO P.7 C ORGDI P.5 +5V DC SK P3.4 8 VCC 1 CS 93C66 CN0 +1V +5V+5VA CN301 +1V +1V1 +5V +5VA3 C331 GND GNDA5 XH P P. 66 P.3 67 P P.4 71 P C301 47uF +5VA C p0.7/a7/t1dir/pm.3 53 p1.0/txd0 5 p1.1/rxd0 51 NC 50 NC 49 P1./TXD1 48 P1.3/RXD1 47 P6.0/WG1 46 P6.1/WG1 45 P6./WG 44 Vss 43 P6.3/WG 4 P6.4/WG3 41 P6.5/WG3 40 Vcc 39 NC 38 Vss 37 EA 36 NC 35 NMI 34 RESET 33 p0.6/a6/t1clk/pm. ANGND Vref P0.5/A5/PM.1 P0.4/A4/PM.0 P0.3/A3 P0./A P0.1/A1 P0.0/A0 NC P.0/EPA0/PVER P.1/SCLK0/BCLK0/PALE NC NC P./EPA1/PROG P.3/COMP3 P.7/SCLK1/BCLK1 NC NC P.4 P.5 P.6/COMP/CPVER P6.7/PWM1 P6.6/PWM0 NC NC NC XTAL XTAL1 Vss EXTINT P5.4 P5.6/READY P5.1/INST Vss P5.0/ALE Vpp P5.3/RD P5.5/BHE NC P5. P B30116MHz C31 30pF +5V R TXD0 RXD0 C3 30pF LED301 LED_GREEN TXD1 RXD1 GUN GUP GVN GVP GWN GWP N87C196MH ALM C R k +5V NC P3.0/AD00 P3.1/AD01 P3./AD0 P3.3/AD03 P3.4/AD04 P3.5/AD05 P3.6/AD06 P3.7/AD07 NC NC P4.0/AD08 P4.1/AD09 P4./AD10 P4.3/AD11 P4.4/AD1 NC P4.5/AD13 Vcc P4.6/AD14 P4.7/AD C RESET +5V IC RA303 RAA09103 P3.4 P3. P3.0 P3.0 P3.0 P3.1 P3.1 P3. P3. P3.3 P3.3 P3.4 P3.4 P3.5 P3.5 P3.6 P3.6 P3.7 P3.7 +5V RA30 RAA V C V +5V RAA09103 RA301 IC304B V 74HC IC303B 74HC14 IC303A IC303C 74HC14 74HC14 IC304A 74HC14 IC304F 1 74HC14 74HC14 IC304D 74HC14 IC305C IC304E HC14 IC305B C ALM 74HC14 IC305D 74HC14 +5V 8 IC305F 1 74HC14 IC305E 10 74HC14 IC305A 1 +5V R3350 R336 10k QN303 NPN_A R3378.k R344.7k IC307 IN 1 OUT 1 IN OUT IN 3 OUT 3 IN 4 OUT 4 IN 5 OUT 5 IN 6 OUT 6 IN 7 OUT 7 IN 8 OUT 8 GND DIODE CLAMP C33 ULN803A 104 IC308 IC306C 7 IC306D LM34 D LM34 D316 P0.0 R339 R343 P C38 47 R338 10k D D R345 10k /1% IC306B LM IN 1 OUT 1 IN OUT IN 3 OUT 3 IN 4 OUT 4 IN 5 OUT 5 IN 6 OUT 6 IN 7 OUT 7 IN 8 OUT 8 GND DIODE CLAMP ULN803AC C D k /1% LM34 R346 +1V R348 10k /1% +5V CN306 TRIP GUP 1 GUP GVP GVP GWP 3 4 GWP GUN GVN 5 GUN GWN 6 GVN ALM 7 GWN 8 ALM 9 GND R340 1k /1% R341 8.k /1% R34 1k /1%.k 10k /1% R349 +1V +1V IC306A 3 +5V 10k /1% XH9-9 R347 ALM P3.6 P3.5 P3.1 P3.7 P0.6 R k JP301 JUMPER +1V C R351 10k CN317 1 OH XH-ÒøÉ«CN318 1 OP XH-dz»Æ +5V +1V CN308 +1V 1 FAN1 C XH- CN307 +1V 1 FAN XH- CN309 SPRY 1 Vo GND 3 +1V 4 XH4-4 QP30 PNP_3906 R CN305 GND 1 W_P HEAT 3 SV1 4 SV 5 4_WAY 6 Ox_P 7 F_M_R 8 F_L 9 F_H 10 GND 11 OU 1 Vs 13 XH13-13 É«LED30 D C LED_RED B CN310 +1V 1 +1V A 3 B 4 C 5 D 6 XH6-6½ðÉ«µç ÓÅòÕÍ PMV CN03 A 74HC14 IC304C HC14 Title Size A º ûkr-160w/(bp)s ØÖÆ Number A Revision V1.0 Date: 11-Aug-004 Sheet of File: C:\Documents and Settings\shibin\ ÀÃæ\KR-160~.DDB Drawn By:

91 8.6 Dip switch and the ports on PCB functions AU8/34FHAIA ports on PCB: Ports Ports name Wiring method CN1 IPM-OUT IPM output control line CN IPM-POWER To 4-way 15V power source CN3 +310V,GND To 310V DC power source CN4 Fan motor port To fan motor CN5 SERIAL 857 detecting serial port CN6 Four-way valve port To four-way valve CN7 Live line of electric heater To live line CN8 Neutral line of electric heater To neutral line CN9 Live line of power source To live line CN10 Neutral line of power source To neutral line CN11 Live line of power source To live line CN1 Earthing line To earthing line CN13 Communication port To communication line CN14 Sensor port Including defrosting, discharging, ambient, air return, evaporating temp. sensors CN15 EEV port To EEV CN16 High pressure switch port To high pressure switch CN19 SERIAL 846 detecting serial port, used CN Spray valve port To spray valve CN3 Oxygen generator port To oxygen generator (optional) CN7 Indicator board To exterior testing device, showing failure code CN30 Compressor current detecting To compressor current detecting board CN3 +15V,GND CN34 Low pressure switch port To compressor low pressure switch CN35 Unloading port To unloading valve -88-

92 AU5,60NFIAKA PCB ports name and functions Ports Ports name Wiring method R, S, T Power supply ports To power of 3 PH, 380V, 50Hz U, V, W Compressor ports To motor (pay attention to phase sequence) E Grounded port Grounding (less than 10Ω;more thanφ1.6mm) N Neutral wire port If 3 phase, it is connected to neutral wire; if 1 phase, it is blank. L1, L Reactance port To wire of reactance (n-polar) CN10 Current transducer port To current transducer CN11, CN1 Fan motor port To fan motor CN05 Water pump port To water pump (be spare) CN06 Electric heater port To electric heater CN07 Soleid valve port To soleid valve CN08 Soleid valve port To soleid valve CN09 Four-way valve port To four-way valve CN10 Oxygen generator port To oxygen generator (blank temporarily) CN303 Testing board port To testing board. Used to modify, check data for after sale personnel. CN304 Communication port To C1, C of communication block CN307, CN308 Fan motor port for dispersing heat To fan motor for dispersing heat (be spare) CN310 EEV port To outdoor electronic expansion valve CN311 Radiator temp. sensor port To radiator temp. sensor (blank temporarily) CN31 Mid-condenser temp. sensor port To mid-condenser temp. sensor CN313 Defrosting temp. sensor port To defrosting temp. sensor CN314 Ambient temp. sensor port To ambient temp. sensor CN315 Suction temp. sensor port To compressor suction temp. sensor CN316 Discharging temp. sensor port To discharging temp. sensor CN317 Low pressure switch port To low pressure switch CN318 High pressure switch port To high pressure switch -89-

93 8.7 Testing board for AU5,60NFIAKA: Press button mode, the display will change over in the following sequence: State Frequency Current output Voltage on DC side Ambient temp Discharging temp Suction temp Defrosting temp Coil temp Indoor unit quantity Open degree of EEV Display Fxx.xx A xx.x U xxx 1 xx xx 3 xx 4 xx 5 xx 6 xx 7 xxx Run Stop Run Stop Defr. Cool Heat Cool Heat Mode Prog. Enter Note: Please connect the wire on power off. Insert the testing board on the CN30 of the outdoor PCB. The part number is In addition, we set a testing port CN303 which can be connected to the computer through ather testing device (part number: ). The distributor can get the testing device and the testing software from us. Testing procedure: 1. After the unit powered off, connect the wire of testing board to CN30 port, and then pull down the communication wire between outdoor and indoor unit.. Check if the wiring is right. If, power on the outdoor unit. 3. On the operation panel of the testing board, the relative data can be modified. 4. Press Prog., enter data editing mode. 5. Set data Pr-00 as 0,then data can be edited. Press Enter to confirm. 6. The other data can be set according to the requirement like this way. 7. After all the data be modified, set Pr-00 as Press Prog., quit out of data editing mode. 9. Note: Data of the chip is very important, the improper modification will cause the main parts damaged such as compressor. So before modification, please contact with us. 10. After quitting from data editing mode, operation board will display P r.e which will flash. After 3 minutes, it will display b.p.160. At this time, pressing the to reset the program. 11. After reset, power off the outdoor. For 1~ minutes, the outdoor release all the electricity, plug the communication wire between outdoor and indoor to the original position, the modification is over. -90-

94 8.8 AU5FIAKA: function specification of SW01, SW0, SW04, SW05, SW06, SW07 Table 1 SW01 SW0 Display of 7 segments LED (LD1,LD,LD3) 0 0 FFF shows capability overloading (if capability overloading function is chose) Outdoor diagsis code when without diagsis code, display: Outdoor running mode cooling: C heating: H defrosting: J Defrosting area set: display shows that L is set at 1 display shows that L is set at 10 display shows that L is set at 8 When the following condition is available, the unit enters into defrosting running: (TE: defrosting temp., TA: ambient temp.) TE C TA-α Note:C:TA<0,C=0.8 TA 0,C=0.6 The value of α can be set according to the selection of jump wiring: selection of jump wiring L M H α( ) 1e 10e 8e 4 INV command frequency(decimalism) e.g.10 stands for 10HZ 5 INV receiving frequency(decimalism) e.g. 84 stands for 84HZ 6 Quantity of indoor units connected(decimalism) e.g. 6 stands for 6 indoor units 7 Back up running: TS sensor: 1, TE sensor: 1 This function is preset and t available. 1 8 Back up running: TA sensor: 1, mid-section temp. sensor: 1 This function is preset and t available. 9 Back up running: PD sensor: 1, PS sensor: 1 This function is preset and t available. 13 Display compensation of capacity class: class 4, class 6 After the start-up of system is over, the frequency of compressor has gotten the target frequency confirmed by the request of indoor unit capacity for 5 minutes, and then the unit will modulate the capacity. (Note: class 4 and class 6 can be selected. Class 4 is that the capacity class whose range is from 4 classes higher to 3 classes lower than the target frequency. Class 6 is that the capacity class whose range is from 6 classes higher to 4 classes lower than the target frequency. For the unit without pressure sensors, there is this function.) 14 Display U shows that indefinite capacity is chose Display d shows that definite capacity is chose (indoor total capacity can t be over 130%) 15 Display o1-----stands for HP Display o-----stands for HP Display H1-----shows that can be connected with central communication 0 TD sensor data(decimalism) 1 TA sensor data(decimalism) TS sensor data(decimalism) 3 TE sensor data(decimalism) 4 Mid-section of coil pipe sensor data (decimalism) 5 Pd sensor data(display corresponding saturation temperature) 6 Ps sensor data(display corresponding saturation temperature) 7 Opening degree of outdoor PMV1(decimalism) 8 Opening degree of outdoor PMV(decialism) 9 -way valve switched on: SV ON: 1, switched on: Outdoor running current (decimalism) -91-

95 11 Outdoor fan mode :_1(low speed),_(med speed),_3(high speed) 1 Temperature sensor ON display ON: 1,OFF:-- 13 Four-way valve switched on: ON: 1 Four-way valve t switched on: OFF: 14 Running mode selection cooling: C, heating: H 0 1 Dispatch line check cooling:cc --this function is preset Dispatch line check heating:hh--this function is preset 3 Cool trial run: C --this function is preset 4 Heat trial run: H --this function is preset 5 Swing trial run: _F--this function is preset 6 Indoor unit uniform start/stop:run: 11/stop: 00(display -- after 3 minutes) --this function is preset 7 Clean abrmal function: CL--this function is preset 8 Outdoor PMV1fully open close function: fully open: FF, fully close: 00 9 Outdoor PMV fully open close function: fully open: FF, fully close: Indoor PMV fully open close function:fully open: FF 11 Outdoor rated setting: -F Indoor communication state: receiving rmal: 1 receiving abrmal: 8 Display quantity of communicating indoor unit, e.g. : 6 shows that 6 indoor units are working Indoor diagsis code, diagsis code: --this function is preset Indoor HP new code:0 stands for 0.8HP, 1 stands for 1HP, stands for 1.HP, 3 stands for 1.5HP, 4 stands for HP, 5 stands for.5hp, 6 stands for 3HP, 7 stands for 4HP Old code: 1 stands for 1HP,7 stands for 7HP Indoor required capacity (decimalism) indoor P-CODE Indoor PMV opening degree (decimalism) Indoor saturation temperature (decimalism) (account according to outdoor suction pressure PS) Indoor sensor TA temperature(decimalism) Indoor sensor TC temperature(indoor gas pipe)(decimalism) Indoor sensor TC1 temperature(indoor liquid pipe)(decimalism) Single cool trial run--this function is preset Single heat trial run--this function is preset Combination control with outdoor switches Table function summary Method of set, cancel Cool trial run Indoor trial run in cooling mode, the function is the same as trial run with remote controller, the indoor unit which trials run fixes the temp. difference as max. temp., and send it to outdoor, the other control is similar with rmal. SW05 Heat trial run Indoor trial run in heating mode, the function is the same as trial run with remote controller, the indoor unit which trials run fixes the temp. difference as max. [set] SW01, SW0 03, press SW04 for more than seconds, after set of trial run success, LD will always display C until the function is cancelled. [cancel] in trial run state, SW01 0, SW0 03, press [set] SW01, SW0 04, press SW04 for more than 4 seconds, after set of trial run success, LD will always display H until the function is cancelled. [cancel] in trial run state, SW01 0, SW0 03, press -9-

96 temperature, and send it to outdoor, the other control is similar with rmal. Swing trial run Indoor trial run in swing mode,the control is the same as swing trial run with remote controller. Uniform running Indoor is uniform running The indoor running mode is corresponding with the setting or memory of remote controller. SW05 [set] SW01 0, SW0 05, press SW04 for more than seconds, after set of trial run success, LD will always display F until the function is cancelled. [cancel] in trial run state, SW01 0, SW0 05, press SW05 [set] SW01 0, SW0 05, press SW04 for more than seconds, after set of trial run success, LD will display FF for 5 seconds. [cancel] cancel according to operation of remote controller Uniform stop Indoor uniform stops [set] SW01 0, SW0 06, press SW05 for seconds, after set success, LD will display FF for 5 seconds. [cancel] cancel according to operation of remote controller Indoor PMV fully open compelled Indoor PMV fully open compelled in minutes [set] SW01, SW0 10, press SW04 for more than seconds [confirmation] in minutes, 7-segment LED of base board I/F will display FF all the time [cancel] the control software will recover PMV to rmal open degree after minutes ( after indoor software receives the signal of fully open from outdoor, PMV will fully open only in minutes.) Rated running Set the unit rated running [set] SW01 0, SW0 11, press SW05 for more than seconds, after setting success, LD will display F, shows that the unit may enter rated running mode, afterwards you can set SW06, SW07.SW06 is used for increasing frequency, while SW07 is used for decreasing frequency. [cancel] cancel according to operation of remote controller Outdoor PMV1 fully open, closed function Commercial Air Conditioner Outdoor PMV1 compelled fully open or close in minutes [set] SW01 3, SW0 9, press SW04 for more than seconds [confirmation] in minutes, 7-segment LED of base board I/F will display FF all the time [cancel] the control software will recover PMV to rmal open degree after minutes ( after indoor software receives the signal of fully open from outdoor, PMV will fully open only in minutes.) -93-

97 Outdoor PMV fully open, closed function Commercial Air Conditioner Outdoor PMV compelled fully open or close in minutes [set] SW01 3, SW0 10, press SW04 for more than seconds [confirmation] in minutes, 7-segment LED of base board I/F will display FF all the time [cancel] the control software will recover PMV to rmal open degree after minutes ( after indoor software receives the signal of fully open from outdoor, PMV will fully open only in minutes.). Specification for SW03 The two switches of SW03 should be ON or OFF at the same time. -94-

98 8.9 Sensor characteristic model AU8FHAIA AU34FHAIA AU5FIAKA AU5NFIAKA AU60NFIAKA sensor number sensor name discharging temp. sensor mid-condensor temp. sensor defrosting temp. sensor suction temp. sensor outdoor ambient temp. sensor sub-sensor number outdoor ambient temp. sensor 001A suction temp. sensor 001A defrosting temp. sensor 001A mid-condenser temp. sensor 001A compressor discharging temp. sensor 001A defrosting temp. sensor 001A pipe temp. sensor 001A discharging temp. sensor 001A suction temp. sensor 001A ambient temp. sensor 001A AB09FCAIA pipe temp. sensor 001A AB14FCAIA AB18FCAIA ambient temp. sensor 001A AC18FCAHA AE07FCAMA AE09FCAMA AE1FCAMA AE14FCAMA AE18FCAMA AE1FCAMA AE4FCAMA coil temperature sensor 001A ambient temperature sensor 001A pipe temp. sensor 001A A liquid pipe temp. sensor 001A AS07FCAIA AS09FCAIA AS1FCAIA AS18FTAHA 001A coil temp. sensor 001A A characteristic R80=50KΩ±3% B5/80=4450K±3% R5=10KΩ±3% B5/50=3700K±3% R5=10KΩ±3% B5/50=3700K±3% R5=10KΩ±3% B5/50=3700K±3% R5=10KΩ±3% B5/50=3700K±3% R5=10KΩ±3% B5/50=3700K±3% R5=10KΩ±3% B5/50=3700K±3% R5=10KΩ±3% B5/50=3700K±3% R5=10KΩ±3% B5/50=3700K±3% R80=50KΩ±3% B5/80=4450K±3% R5=10KΩ±3% B5/50=3700K±3% R5=10KΩ±3% B5/50=3700K±4% R80=50KΩ±3% B5/80=4450K±3% R5=10KΩ±3% B5/50=3700K±4% R5=10KΩ±3% B5/50=3700K±3% R5=10KΩ±3% B5/50=3700K±3% R5=3KΩ±.5% B5/50=400K±3% R5=10KΩ±3% B5/50=3700K±3% R5=3KΩ±.5% B5/50=400K±3% R5=10KΩ±3% B5/50=3700K±3% R5=10KΩ±3% B5/50=3700K±3% 1.R5=10KΩ±3% B5/50=3700K±3%.R5=3KΩ±.5% B5/50=400K±3% -95-

99 R80=50KΩ±3% B5/80=4450K±3% R80=50KΩ±3% B5/80=4450K±3% R5=10KΩ±3% B5/50=3700K±3% R5=10KΩ±3% B5/50=3700K±3% T( ) Rm(KΩ) T( ) Rm(KΩ) T( ) Rm(KΩ) T( ) Rm(KΩ)

100 R5=3KΩ±.5% B5/50=400K±3% T( ) Rm(KΩ) T( ) Rm(KΩ) R5=3KΩ±.5% B5/50=400K±3% -97-

101 54Commercial Air Conditioner 9. Wiring diagram AU8FHAIA, AU34FHAIA Wiring diagram: Compressor Crankcase Fan Motor Heater M Fan Motor Capacitor 4-Way Valve Spray Valve Oxygen Generator M Parts in dashed frame are optional. CN3 CN7 CN8 CN4 CN6 CN CN3 CN9 W Y/G CT B W R BL OR P N CN101 IPM U V CN10 W BL Y CN CN1 F3.15A/50V Control Board B CN30 CN16 W PTC COM NO CN10 L1 CN11 CN1 CN1 RL1 CN13 CN14 CN34 CN15 B Y/G R R Power Supply 1PH,0v-30V~,50Hz Y/G Connected To Indoor Communication Wire Indoor unit Power Supply 1PH,0v-30V~,50Hz Defrost Temp. Sensor Discharge Temp. Sensor Ambient Temp. Sensor Suction Temp. Sensor Mid-Condensor Temp.Sensor R Electrolytic Capacitor 500μF/400V Electrolytic Capacitor 100μF/400V B B High-pressure Switch Low-pressure Switch M Electronic expansion Valve B:Black BL:Blue BR:Brown R:Red W:White Y:Yellow OR:Orange Y/G:Yellow/Green Reactor OUTDOOR UNIT WIRING DIAGRAM5Rectifier 5A/600V B Rectifier 50A/600V AU5FIAKA Wiring diagram: C1To indoor uint BCB R Current LD1 LDLD SW05 SW04 5Capacitor SW01 SW W Detecor3High Voltage Control 1Board Tc d Ts13SW03 311TTe311TaFuse 134R R M Spray EEV B W B1RValve44-Way Unloading 431valve Valve Crankcase Oxygen B 1Heater Generator L B Earthing 1CT N 4W Y/G W1W W W4B B W Fan NY/GL+-1Capacitor R1ResistanceCN CN1 AC Motor B Power Supply LowPressure Switch HighPressure Switch Defrost Temp. Sensor Compressor Vent Sensor Ambient Temperature Sensor Inhale 1Pipe Temperature Sensor3Compressor AC Contactor 5B 1+ - Reactor R Rectifier1Fan 1Capacitor1AC Motor A -Electrolytic Capacitor Electrolytic Capacitor 1.Parts in dashed frame are optional.b:black R:Red W:White Y/G:Yellow/Green -98-

102 Commercial Air Conditioner AU5, 60NFIAKA wiring diagram: Fan capacitor CF1 FAN1 CF Fan capacitor FAN CN1 1 CN3 3 1 CN SCLD-P-B-4PDT-C CN CN1 OX-P 4-WAY SV SV1 RY09 RY08 CN10 CN10 CN08 CN07 CN06 CN05 RY06 RY05 RY04 RY03 RY07 CN04 CRANKCASE HEART CN01 CN103 RY0 (+) (-) RECTIFIER Noise Filter W-P N 3 1 T3.15A/50VAC L R IPM U V W CT U V W W B N P (-) (-) (-) RY01 Power Supply Board R S T N CN0 CN C101 C10 C103 C104 C105 C106 R101 R114 Lm1Lm L CN301 CN30 CN CN105 PTC CN303 CN308 CN307 JP301 Control Board CN RY101 FM CN107 3 CN104 4 Anti-surge relay FM4 CN309 CN311 CN31 CN313 CN314 CN315 CN316 CN317 CN318 CN310 CN C1 C Communication TSINK 1 1 Tt 1 Te Ta 1 Ts 1 Td 1 0H(L) 1 0P(H) 1 Remarks: 1. CN30 CN303 are ports for controllers,and will be used in maintenance.. Parts in dashed frame are optional. Symbols meaning symbol part name CM compressor FM fan motor OX-P oxygen bar function 4-WAY 4-way valve SV soleid valve HEAT crankcase heater W-P water pump TSINK radiator temp. sensor Tt mid-condenser temp. sensor Color symbol: symbol symbol B BL R W Y G Y/G black blue red white yellow green yellow/green symbol part name Te defrosing temp. sensor Ta ambient temp. sensor Ts suction temp. sensor Td discharging temp. sensor 0H Low pressure switch 0P High pressure switch EEV Electronic expansion valve CT current transducer CM Power Supply Y/G Y/G AB**FCAIA wiring diagram: LED4 gas pipe temp. sensor liquid pipe temp. sensor COMP float switch Room temp. sensor LED3 TIM LED Remote receiver OPER BEEP1 Remote control type Wired controller LED1 POW emergency switch sw01 electronic expansion valve Builtin EEV type CN5 CN9 1CN11 CN4 CN13 CN d b ac M CN6 sw03 R CN1 1 R M CN3 serial CN16 Indoor unit wiring diagram swing motor Indoor control board unit code setting CN4 3 1 sw0 sw01 CN7 3 1 M fan capacitor FUSE T3.15A/50VAC CN19 M CN8 1 CN0 fan motor CN5 CN18 CN About the PCB setting In the diagram,gas pipe temp. sensor,liquid pipe temp. sensor,room temp.sensor,indoor fan motor,float switch, pump motor,swing motor are necessary parts; Wired controller,remote receiver,electronic expansion valve are parts matched with the model(combined usage); negative ion generator or are optional parts for health high voltage accumulator and comfort (combined usage). Wired controller and remote receiver only can be chosen one of type at will. The setting of SW01,SW0 and SW03 : 1.The former three bits of SW01 are used to set unit number,which are operated by the installer on field..the fourth bit of SW01 is used to choose different indoor fan speed in heating mode."on"means that fan speed can be set as middle and low level,"off"means that fan speed can be set as high,middle and low level. 3.The first bit of SW0 and SW03 is used to choose wired control type or remote control type. "ON"means that the unit with wired controller(other parts are as the same as remote control unit). And "OFF"is remote controller. The unit with wired controller can make remote operation on wired controller with remote controller such as YR-H71. 4.The second bit of SW0 is used to choose built-in or outside electronic expansion valve setting. "ON"means built-in type : CN6 is connected with electronic expansion valve and indoor unit control refrigerant flow itself. "OFF"means outside type: CN5 is connected with electronic expansion valve communication,and the electronic expansion valve box(mp3a) control indoor refrigerant flow. A B C D outdoor communication negative ion generator or high voltage accumulator pump motor Attentions: The CN9 is t available. So the second bit of SW03 is must be set "ON",And CN19,CN is t available. CN16 is a serial communication port for service. W B R Y/G Wired control type electronic expansion valve box power supply and communication Outside EEV type The dip switch setting when out of factory indoor power B:Black BL:Blue BR:Brown R:Red W:White Y/G:Yellow/Green 1PH.0-30V~.50Hz NOTE:Must connect electronic expansion valve box power and communication from corresponding indoor,wiring sequence must correspond with the label respectively,other wise, will cause PCB of indoor and electronic expansion valve box t work and damaged. -99-

103 4 1 3 AE**FCAMA wiring diagram: Commercial Air Conditioner electronic expansion valve M Indoor unit wiring diagram Builtin EEV type About the PCB setting In the diagram,gas pipe temp. sensor,liquid pipe temp. sensor,indoor fan motor are necessary parts;wired controller, gas pipe temp. sensor liquid pipe temp. sensor ambient temp. sensor 1 CN LED3 LED SW1 LED1 CN Remote receiver Remote control type A B C D float switch room temp sensor CN5 CN9 CN11 CN4 CN13 CN14 1water temperature sensor 4 d outdoor communication 3 1 b a c R sw03 CN1 CN10 CN4 CN7 CN1 CN19 CN CN6 R fan capacitor serial CN16 Indoor control board M indoor fan motor 3 sw0 sw01 unit code setting 1 negative ion generator or high voltage accumulator pump motor FUSE T3.15A/50VAC swing motor CN5 CN18 CN remote receiver,electronic expansion valve are parts matched with the model(combined usage); Auxiliary electric heater, negative ion generator, high voltage accumulator are optional parts for health and comfort (combined usage). Wired controller and remote receiver only can be chosen one of type at will. The setting of SW01,SW0 and SW03 : 1.The former three bits of SW01 are used to set unit number,which are operated by the installer on field..the fourth bit of SW01 is used to choose different indoor fan speed in heating mode."on"means that fan speed can be set as middle and low level,"off"means that fan speed can be set as high,middle and low level. 3.The first bit of SW0 and SW03 is used to choose wired control type or remote control type. "ON"means that the unit with wired controller(other parts are as the same as remote control unit). And "OFF"is remote controller. The unit with wired controller can make remote operation on wired controller with remote controller such as YR-H71. 4.The second bit of SW0 is used to choose built-in or outside electronic expansion valve setting. "ON"means built-in type : CN6 is connected with electronic expansion valve,and indoor unit control refrigerant flow itself. "OFF"means outside type: CN5 is connected with electronic expansion valve communication,and the electronic expansion valve box(mp3a) control indoor refrigerant flow. 5.The second bit of SW03 is used to select the twin energy source function. "ON":The unit without TES function. "OFF":The unit can be used as TES function. When it is used for TES function,the water tempeture sensor (CN9) is available. Wired controller Wired control type B:Black BL:Blue BR:Brown R:Red W:White Y/G:Yellow/Green indoor power 1PH.0-30V~.50Hz Y/G electronic expansion valve box power supply Outside EEV type and communication NOTE:Must connect electronic expansion valve box power and communication from corresponding indoor,wiring sequence must correspond with the label respectively,other wise, will cause PCB of indoor and electronic expansion valve box t work and damaged. resumeable heat protector 80, 10A/50VAC auxiliary heater FUSE T15A/50VAC one-off heat protector 105,10A/50VAC only applicable for unit with auxiliary electric heater Attentions: CN16 is a serial communication port for service. LED of remote controller: LED1 power-green LED3 running red -LED timer-yellow SW1 emergency switch(on/off) AS**F*A wiring diagram: TRANSFORMER NEGATIVE ION GENERATOR R W XB1 XB CN10 CN11 INDOOR WIRING DIAGRAM Display Bar CN9 CN1 CN6 SERIAL CN13 Control Board CN1 CN CN 4 CN7 SW CN8 CN5 M LIQUID PIPE TEMP. SENSOR EMERGENCY SWITCH ROOM TEMP. SENSOR GAS PIPE TEMP. SENSOR M STEPPING MOTOR 1 VIEW A VIEW A 3 4 TO ELECTROMAGNETIC VALVE BOX EARTHING 1.CN6 is a serial port for some device..r:red B: BLACK W: WHITE Y/G: YELLOW/GREEN W N B L Power Supply 1PH,0-30v~,50Hz Y/G Earthing Wire R C1 R C Communication Wire -100-

104 1 A B Commercial Air Conditioner AE**FLAIA wiring diagram: About control board outer connector In the diagram,gas pipe temp. sensor,liquid pipe temp. sensor,indoor fan motor are necessary parts; controller,receive display,electronic swing motor, indoor Wired expansion valve and temp. sensor are parts matched with the model (combined usage). Auxiliary electric high voltage accumulator comfort. combination heater,negative ion generator, are optional parts for health and usage arbitrarily). Wired controller and receive display only can choose one at will. The setting of SW01,SW0 and SW03 : 1.The former three bits of SW01 are used to set unit number,which are operated by the installer on field..the fourth bit of SW01 is used to choose different indoor fan speed in heating mode."on"means that fan speed can be set as middle and low level,"off"means that fan speed can be set as high,middle and low level. 3.The first bit of SW0 and SW03 is used to choose wired control type or remote control type. equipped with wired controller operation on wired controller with remote controller such as YR-H71. can make remote "ON"means that the unit with wired controller(other parts are as the same as remote control unit). And "OFF"is remote controller. 4.The second bit of SW0 is used to choose built-in or outside electronic expansion valve setting. "ON"means built-in type : CN6 is connected with electronic expansion valve and indoor unit control refrigerant flow itself. "OFF"means outside type: CN5 is connected with electronic expansion valve communication,and the electronic expansion valve box(mp3a) control indoor refrigerant flow. Attentions: 1.When the TES unit is used,the second bit of SW03 is OFF and CN9 is connected with the water temp.sensor ;otherwise,the second bit of SW03 is ON and without water temp.sensor..the float switch and the water pump are optional in the future.when the unit is with water pump,the float switch should be connected or else should be short connected with a jumper. E0 Float switch abrmal or water temperature sensor abrmal E1 Outdoor unit failure E3 Liquid pipe temperature sensor failure E4 Gas pipe temperature sensor failure Repeated indoor unit number (E5 flashes for a while and then turn to E9) E5 E6 EEPROM abrmal E7 Communication abrmal with EEV box E8 Communication abrmal between wired controller and indoor PCB E9 Communication abrmal between indoor and outdoor. LED1 indicator power green LED3 indicator running red LED indicator timer yellow SW1 emergency switch(on/off) electronic expansion valve M Indoor unit wiring diagram Only used for inbuilt valve type CN6 CN5 sw0 serial 1 CN16 float switch Indoor temperate sensor 10 CN11 CN4 CN13 sw03 Indoor control board sw01 unit code setting FUSE T3.15A/50VAC CN5 CN18 CN CN14 CN1 CN10 CN4 CN7 CN1 CN19 CN b a c R 1 R fan capacitor M 3 1 connector earthing M M outdoor communication indoor fan motor negative ion generator or high voltage accumulator pump motor swing motor indoor power 1PH.0-30V~.50Hz electronic expansion valve box power supply and communication Used for outside electronic expansion valve setting. NOTE:Must connect electronic expansion valve box power and communication from corresponding indoor,wiring sequence must correspond with the label respectively,other wise, will cause PCB of indoor and electronic expansion valve box t work and damaged. resumeable heat protector70, 10A/50VAC auxiliary heater FUSE T15A/50VAC one-off heat protector 105, 0A/50VAC only applicable for unit with auxiliary electric heater gas pipe temp. sensor liquid pipe temp. sensor water temperate sensor ambient temp. sensor CN LED3 LED LED1 SW1 CN1 10 receive display choise of remote cotroller type choise of wire controller type C D wired controller B:Black BL:Blue BR:Brown R:Red W:White Y/G:Yellow/Green -100-

105 MP3A wiring diagram: MP3A wiring diagram FUSE T3.15A/50VAC CN1 CN CN3 Control board electronic expansion valve3 M electronic expansion valve M 4 M 3 1 CN15 CN14 CN electronic expansion valve1 CN4 CN5 CN6 CN7 CN8 CN9 1 SERIAL CN6 CN10 CN11 CN1 B W BR B W BR B W BR L1 N1 C1 L N C L3 N3 C3 Y/G indoor 1 indoor 3 indoor B:Black BR:Brown W:White Y/G:Yellow/ Green NOTE: Power supply and communication wire must be connected with the corresponding indoor units.wiring sequence must be correspondent respectively,l and N must t be connected reversely,otherwise, it will cause the unit t work and demaged. On running, "indoor 1" must be electrified always, or air conditioner does t work rmally.when the system is equipped with MPA, the installer should use the corresponding two-way electronic expansion valve communication wiring and its driver port. AC18FCAHA: W GAS PIPING TEMP.SENSOR LIQUID PIPING TEMP.SENSOR SW1 BL B ROOM TEMP.SENSOR SIGNAL RECEIVER BOARD LOUVER MOTOR LOUVER MOTOR M M M CN CN10 CN8 CN4 CN6 CN7 INDOOR PCB ON TEST SW CN OFF TEMP.COMPENSATION 50VAC,3.15A SP8 ELECTRO-EXPANSION VALVE CN5 HI MED LO COM FT FT1 R R W B CAPACITOR M W B Y/G R R W Y/G FAN MOTOR N L C1 C NOTE: WHEN INSTALLATION IN UNDER CEILING,DIAL SWITCH "SW "IN THE PC BOARD TO "OFF"POSITION.WHEN INSTALLATION IN FLOOR CONSOLE,DIAL SWITCH TO "ON"POSTION. TO OUTDOOR UNIT -101-

106 10. Failure code and troubleshooting 10.1 Outdoor failure code: AU8/34FHAIA, AU5FIAKA: check indoor mainboard LED1 or outdoor mainboard LED1. Failure code Failure description 01 Outdoor defrosting temperature sensor TE circuit failure 0 Ambient temperature sensor TA circuit failure 03 Suction temperature sensor TS circuit failure 04 Discharging temperature sensor TD circuit failure 05 Outdoor mid-condenser temperature sensor failure 06 Over current abrmal 07 Current mutual inductor failure 09 IPM protection 10 EEPROM on PCB incorrect 11 Discharging temperature protection action 13 Pressure switch circuit abrmal 14 Pressure switch circuit abrmal 19 Discharging temperature protection action when in low frequency 0 Communication abrmal when chip 857 receives signal from chip Compressor over current failure Communication abrmal when chip 846 receives signal from indoor unit 3 Chip 846 EEPROM/chip 857 EEPROM failure -10-

107 AU5,60NFIAKA malfunction code: Malfunction description Code LED display on If sent to the regulating indoor unit? board Remarks Normal 0 Normal Yes Defrosting temperature Yes 1 E.4. sensor abrmal Resumable Ambient temperature sensor Yes Resumable E.1. abrmal Suction temperature sensor Yes Resumable 3 E.3. abrmal Discharging temperature Yes Resumable 4 E.. sensor abrmal Coil temperature sensor Yes Resumable 5 E.5. abrmal O.C. Yes After there are current malfunction for 3 Over current protection 6 Need powered off and restart times in 1 hour, the testing board will P O.C. display the last abrmal reason P X.X. Current sensor abrmal 7 C.T. Yes After trouble shooting, need powered off and restart Overload protection 8 O.L. Yes After there are current malfunction for 3 P O.L. times in 1 hour, the testing board will IPM protection 9 E.P. Yes display the last abrmal reason P X.X. P E.P. Need powered off and restart Read EEPROM value 10 P E.E. wrongly Need reset and restart O.D. Yes After there are current malfunction for 3 Discharging temperature times in half an hour, the testing board 11 over high abrmal will display the last abrmal reason P P O.D. X.X. Need powered off and restart High pressure switch Yes 1 O.P. abrmal Resumable Voltage over low protection 13 L.U. Yes After there are voltage malfunction for 3 P L.U. times in 1 hour, the testing board will Voltage over high protection 14 O.U. Yes display the last abrmal reason P X.X. P O.U. Need powered off and restart Compressor overheat Yes 15 O.H. protection Resumable Recover the parameter set 16 P I.A. when out of factory Need reset and restart Clear the malfunction Need reset and restart 17 P C.T. memory Need reset 18 P r.e. Need reset and restart Radiator temperature sensor No use abrmal temporarily -103-

108 10. Indoor failure code A. Wired control type indoor unit: the dip switch of wired controller is 1 and 3 at ON, and 4 at OFF. Failure code Failure description E0 Float switch abrmal E1 Outdoor unit failure E Abrmal mode operation E3 Liquid pipe temperature sensor failure E4 Gas pipe temperature sensor failure E5 Repeated indoor unit number or communication failure between indoor 846 chip and 808 chip E7 Communication abrmal with EEV box E8 Communication abrmal between wired controller and indoor PCB E9 Communication abrmal between indoor and outdoor EB (pre-set, t Water temperature sensor abrmal available) B. Infrared control type indoor unit: TIMER lamp flash times Failure description Once Liquid pipe temperature sensor failure twice Gas pipe temperature sensor failure 3 times Ambient temperature sensor failure 4 times Communication abrmal between indoor and outdoor 5 times Communication abrmal with EEV box 6 times Repeated indoor unit number or communication failure between indoor 846 chip and 808 chip 10 times Indoor motor abrmal 11 times Float switch or pump motor abrmal 1 times Indoor EEPROM abrmal 13 times Indoor over heat Note: if indoor RUN lamp flashes, that shows outdoor abrmal, so matter how many times it flashes, you should check outdoor indicator flash times and the relative failure code

109 10.3 AU8,34FHAIA, AU5FIAKA troubleshooting: 1.Communication failure between indoor and outdoor units Wired controller: E9; 4 flashes of TIMER lamp Is indoor unit address properly set? Without repetition? Reset address Are communication terminals of indoor and outdoor units securely connected? Reconnect Is shielded wire used for communication? Use shielded wire. Shield layer should be grounded at single point Are communication wire and power cable set separately? wiring Separately Is there external signal interference? Is indoor mainboard poorly welded? Eliminate interference Replace indoor PCB Are communication resistance and capacitor of indoor PCB correct? See NOTE Replace indoor PCB Check outdoor mainboard Make necessary replacement -105-

110 . Sensor failure Is sensor properly connected? reconnect Are resistance and temperature characteristics of sensor rmal? change sensor check if PCB is defective, if,replace 3.EEPROM failure: outdoor displays 10 start Is EEPROM in mainboard inversely connected or in poor contact? re-set replace PCB 4. Over current protection: 6 flashes of outdoor ALARM lamp, fault readout: 6 Is supply voltage good? Is wire specification correct? Modify power supply circuit Are connectors in good condition? Check and reconnect Check if the compressor current is over protection value: 30A Is filter board in good condition? Change PCB 1. Is output voltage among U, V and W balanced?. Disconnect all terminals. Is resistance between P and N; P and U, V, W; N and U, V, W acceptable? Change filter board Replace power module Is pressure acceptable? Check: 1. Is a valve in system close?. Is piping clogged; 3. Is system overfed; is there air in system; 4. (Cooling cycle) Is condenser dirty? Does outdoor fan motor run at low speed or stop? 5. (Heating cycle) Is evaporator or filter dirty? Does indoor fan motor run at low speed or stop? 6. Is ambient temperature too high? Is system overloaded? Is compressor in good condition? Is compressor winding resistance acceptable? Is it stuck? Is rectifier in good condition? 1. Check diode characteristics of rectifier+, AC; - AC. Measure voltage between P and N, which should be 310VDC at 0VAC Is electrolytic capacitor for filtration in good condition? Check mainboard and make necessary replacement Check capacitance and conductivity and make necessary replacement -106-

111 5. IPM power module protection 9 flashes of outdoor ALARM light, fault readout:9 Possible causes: 1. Short-circuit or overcurrent.four-way control supply (15VDC) is less than 13.5V. 3.Module is hot with a temperature higher than 145 C. Are connectors in low voltage PCB in poor contact? Check and reconnect Is 10-pin connector between IPM and mainboard short-circuit or in poor contact? Replace cable Measure + and - terminals of electrolytic capacitor. Is output voltage of rectifier acceptable (310VDC at 0V.) Replace rectifiter Check point: CN1 in mainboard. Is four-way supply voltage less than 13.5V (rmal value: VDC) Replace power board if the compressor is rmal Is compressor winding resistance acceptable? Is it stuck? Is power module too hot? Is silica gel well distributed on radiation fins? Is current up to protection limit of power module? 1.Is voltage of supply circuit too low?.is heat exchanger or indoor fan motor broken? 3.Is ambient temperature too high? Is system overloaded? 1.Is output voltage among U, V and W balanced?.disconnect all terminals. Is resistance between P and N; P and U, V, W; N and U, V, W acceptable? Replace power module Check mainboard and make necessary replacement -107-

112 6. Discharging temperature protection 11 flashes of outdoor ALARM light; fault readout: 11 When is temperature protection activated: Temperature of discharge line is above 115 C. Are stop valves in gas pipe and liquid pipe of outdoor unit open totally? Commercial Air Conditioner Open the stop valve Does EEV work properly during heating cycle? Check 1) Connector ) Winding resistance 3) Valve 4) Mainboard Repair outdoor EEV Is actual discharging temperature detected by thermometer too high? Does indoor fan work properly during heating cycle? Does outdoor fan work properly during cooling cycle? Is filter or heat exchanger dirty? Is discharging temperature sensor in good condition? cleaning replace PCB Check fan motor and capacitor Replace TD sensor Measure balance pressure and running pressure to see if the refrigerant is too much or lack. Is there air in system? Is there a leak? Is piping twisted or deformed? Is piping clogged with weld? When TD is high, is refrigerant injection circuit in good condition? Is injection capillary in good condition? 1.Check coil and valve body of electromagnetic valve..check injection capillary. Conduct leak test. Evacuate and recharge Adjustment or replacement -108-

113 7. High pressure overhigh protection: When high pressure switch is activated: Pressure is above 3.0 MPa. Are connectors of CN16 pressure switch in good condition? Check and reconnect Is high pressure switch activated? Is pressure value detected by pressure gage above 3MPa? replace PCB Replace high side pressure switch Are stop valves in suction pipe and liquid pipe of outdoor unit open? Is piping twisted or deformed? Open stop valve Repair or replacement if outdoor fan motor work properly during cooling cycle? and if indoor fan motor and indoor EEV work properly during heating cycle? Check fan motor or indoor EEV Is filter or heat exchanger dirty? cleaning Is system overfed? Is there air in system? Is reading of discharging pipe pressure gauge oscillatory? Evacuate and recharge -109-

114 8. Low pressure too low protection Low pressure is lower than 0.05MPa for 3 minutes; or lower than 0.05MPa for 30 seconds during halt time Are connectors of pressure switch in good condition? Is low side pressure switch activated? Check and reconnect Replace PCB Is pressure valve detected by pressure gauge lower than 0.05MPa? Replace low pressure switch If outdoor stop valves of gas pipe and liquid pipe are open totally Is piping twisted or deformed? Open stop valve Adjust and maintain Do outdoor fan and PMV work properly during cooling cycle? Do indoor fan and EEV work properly during heating cycle? Repair fan motor and EEV If the filter and heat exchanger are dirty Cleaning If refrigerant circuit is leak? or lack of refrigerant? Check leakage point, evacuate and recharge -110-

115 9. Fault in built-in overload protection of compressor Normally closed; open in the event of a fault. Fault readout: 8; 8 flashes of ALARM light Is CN14 in power supply drive properly connected? reconnect Is overload protector open-circuit? Check power power source board to see if the 10th pin of CN13 has low level. If t, replace it. Is resistance of compressor winding acceptable? Replace compressor If compressor current and discharge pressure are acceptable, the problem is t related to refrigeration system. Check if piping is clogged, ambient temperature is high or heat exchanger is soiled 10. Current transducer failure Display 7, ALARM lamp flashes 7 times check if the wiring is correct according to wiring diagram reconnect if compressor is running? Is rectifier in good condition? Is AC contactor activated? Is contact good? Is power module in good condition? Is compressor current acceptable? Is DC voltage between both ends of CN4 acceptable? Is connection between filter board CN1 and mainboard CN4 rmal? reconnect Check connection of mainboard CN4 and make necessary replacement Replace filter -111-

116 10.4 AU5, 60NFIAKA troubleshooting: 1.Communication failure Note: For outdoor units before December 004, in the event of 3 IPM or high current faults, outdoor unit will stop signal transmission to indoor unit. Indoor unit will display communication fault. Normally, testing board will indicate number of indoor units. The number is fixed. Wired controller display: E9; 4 flashes of indoor TIMER light of models with remote control Is number of indoor units indicated by testing board correct? Changeable? Communication rmal Is indoor unit address properly set? Without repetition? Reset address Are communication terminals of indoor and outdoor units securely connected? Reconnect Is shielded wire used for communication? Use shielded wire. Shield layer should be grounded at single point Are communication wire and power cable set separately? wiring Separately Is there external signal interference? Is indoor mainboard poorly welded? Eliminate interference Replace indoor PCB Are communication resistance and capacitor of indoor PCB correct? See NOTE Replace indoor PCB Check outdoor mainboard. Make necessary replacement NOTE: 1. R49.R50 resistor in wall mounted unit circuit and R40.R41 resistor in ceiling concealed unit circuit have a resistance of 100 K instead of 47K AS models and C8~C30 of AE models use 104 polter resistors. -11-

117 .Sensor failure Are connectors of sensor properly connected? Reconnect Are resistance and temperature characteristics of sensor acceptable? Replace sensor Check PCB and replace 3.EEPROM failure Is CPU chip installed firmly? Reinstall in right direction Is fault corrected after JP301 is reset? Normal If chip is broken? Replace chip Is it rmal after replacing chip? Check PCB and replace -113-

118 4. Over current protection: outdoor LED30 flashes 6 times Is supply voltage good? Lack of phase? Modify power supply circuit Are connectors in good condition? Check and reconnect Is actual compressor current detected by ammeter or test board ( ) above protection limit 16.9A? Wrong report. Replace or Is output voltage among U, V and W balanced?. Disconnect all terminals. Is resistance between P and N; P and U, V, W; N and U, V, W acceptable? Replace power module Is pressure acceptable? Check: 1. Is a valve in system close?. Is piping clogged; 3. Is system overfed; is there air in system; 4. (Cooling cycle) Is condenser dirty? Does outdoor fan motor run at low speed or stop? 5. (Heating cycle) Is evaporator or filter dirty? Does indoor fan motor run at low speed or stop? Is compressor in good condition? Is compressor winding resistance acceptable? Is it stuck? Is 3-phase rectifier in good condition? Is electrolytic capacitor for filtration in good condition? 1.Check if resistance between rectifier+, L1LL3; and - L1LL3 complies with diode characteristics.. Measure + and - terminals of CN01. Measure voltage between P and N, which should be 530VDC at 380VAC Check capacitance and conductivity and make necessary replacement Check mainboard and make necessary replacement -114-

119 5. IPM power module protection 9 flashes of outdoor LED30 light. Possible causes: 1. Short-circuit or overcurrent. Control supply is less than 13.5V. 3.Module is hot with a temperature higher than 145 C Are connectors in light current board in poor contact? Check and reconnect Is 9-pin connector between IPM and low voltage board short-circuit or in poor contact? Replace cable Check point: + and - pins of CN01 in power source board. Is output voltage of rectifier acceptable (530VDC at 380V) Replace rectifiter Check point: CN1 in mainboard. Is four-way supply voltage less than 13.5V (rmal value: VDC) Replace power board if the compressor is rmal Is power module too hot? Is compressor winding resistance acceptable? Is it stuck? Is silica gel well distributed on radiation fins? Is current up to protection limit of power module? 1.Is voltage of supply circuit too low?.is heat exchanger or indoor fan motor broken? 3.Is ambient temperature too high? Is system overloaded? 1.Is output voltage among U, V and W balanced?.disconnect all terminals. Is resistance between P and N; P and U, V, W; N and U, V, W acceptable? Replace power module Is there any damaged component in power module driver? Replace power module driving board Check low voltage and make necessary replacement -115-

120 6. Discharging temperature protection 11 flashes of outdoor LED30 When is temperature protection activated: Temperature of discharge line is above 115 C Are stop valves in gas pipe and liquid pipe of outdoor unit open totally? Open the stop valve Does EEV work properly during heating cycle? Check 1) Connector ) Winding resistance 3) Valve 4) Mainboard Repair outdoor EEV Is actual discharging temperature detected by thermometer too high? Does indoor fan work properly during heating cycle? Does outdoor fan work properly during cooling cycle? Is discharging temperature sensor in good condition? replace PCB Check fan motor and capacitor Replace TD sensor Is filter or heat exchanger dirty? cleaning Measure balance pressure and running pressure to see if the refrigerant is too much or lack. Is there air in system? Is there a leak? Is piping twisted or deformed? Is piping clogged with weld? When TD is high, if SV by pass circuit can work rmally Check coil and valve body of electromagnetic valve. Conduct leak test. Evacuate and recharge Adjustment or replacement -116-

121 7. High pressure overhigh protection: 1 flashes of outdoor LED30 When is high pressure switch activated: Pressure is above 3.0 MPa. Are connectors of CN318 pressure switch in good condition? Check and reconnect Is high pressure switch activated? Is pressure value detected by pressure gage above 3MPa? replace PCB Replace high pressure switch Are stop valves in suction pipe and liquid pipe of outdoor unit open? Open stop valve Is piping twisted or deformed? Repair or replacement if outdoor fan motor work properly during cooling cycle? and if indoor fan motor and indoor EEV work properly during heating cycle? Check fan motor or indoor EEV Is filter or heat exchanger dirty? cleaning Is system overfed? Is there air in system? Is reading of discharging pipe pressure gauge oscillatory? Evacuate and recharge -117-

122 8. Low pressure too low protection Outdoor LED flashes 15 times. Low pressure is lower than 0.05MPa for 3 minutes; or lower than 0.05MPa for 30 seconds during halt time Are connectors of CN317pressure switch in good condition? Is low side pressure switch activated? Check and reconnect Replace PCB Is pressure valve detected by pressure gauge lower than 0.05MPa? Replace low pressure switch If outdoor stop valves of gas pipe and liquid pipe are open totally Is piping twisted or deformed? Open stop valve Adjust and maintain Do outdoor fan and PMV work properly during cooling cycle? Do indoor fan and EEV work properly during heating cycle? Repair fan motor and EEV If the filter and heat exchanger are dirty Cleaning If refrigerant circuit is leak? or lack of refrigerant? Check leakage point, evacuate and recharge 9. Voltage too low protection: high viltage PCB is broken down

123 10.5 H-MRV indoor unit troubleshooting: 1. Models with wired controller Fault code readout: E0 Models with wireless remote controller 11 flashes of Timer light. Fault description: The float switch or pump motor is broken. Check if the switch and pump connector are in good condition? No Repair Yes Check if the float switch is open? Yes Check if the pump is running? Yes Check if the drain system is clogged or the float switch is stuck. No No Yes Replace the indoor PC board Yes Clean the drain system and reconnect the switch. Replace the pump. Models with wired controller Fault code readout: E1 Fault description: Failure in outdoor unit Models with wireless remote controller The Operation light flashes. Check in accordance with the list of outdoor fault codes. Faults in models with remote controller can be identified by the number of flashes made by fault indicator of outdoor unit. Check in accordance with the list of fault codes. 3. No. Models with wired controller Models with wireless remote controller 1 Readout: E3 1 flash of Timer light. Readout: E4 flashes of Timer light. 3 N/A 3 flashes of Timer light. 1 Description: Liquid line temperature sensor (Ti) is short-circuit or open-circuit. Description: Suction line temperature sensor (T0) is short-circuit or open-circuit. 3 Description: Ambient temperature sensor is short-circuit or open-circuit. Check if the pump is poweron? -119-

124 Check if the sensor is properly connected to the mainboard. No Yes Check the sensor resistance with a multimeter: R5 =10KΩ+3% ; B(5/50)=3741K+70K Yes Replace the mainboard. Reconnect No Replace the sensor 4. Models with wired controller Models with wireless remote controller Readout: E5 6 flashes of Timer light. Description: repeated indoor address or transmission error between indoor unit 846 chip and 808 chip. What to do: Firstly correct the indoor unit address, if failure still exists, replace the mainboard. 5. Models with wired controller Models with wireless remote controller Readout: E7 5 flashes of Timer light. Description: Transmission error with electronic expansion valve driver. Check if the electric control of indoor unit and the electric control of expansion valve share the same supply and if live wire and null wire are properly connected. No Reconnect Yes Check if the internal wiring of indoor unit and expansion valve is properly done. For AE- FCBKA mainboard, a jumper wire is used to select the function of wire controller. Yes Check if the mainboard is ticeably damaged and if the control panel works properly after replacement. No Replace the mainboard Check if the PCB CN3 of AC series is short connected. Yes Remove the short wire -10-

125 6. Models with wired controller Readout: E8 / Commercial Air Conditioner Models with wireless remote controller Description: Transmission error between wire controller and indoor unit mainboard Check if the wire controller is properly connected to A, B and C of indoor unit. Yes No Reconnect Check if the voltage between A and B is +1VDC? No Replace indoor unit mainboard Note: CN15 and CN17 of AE series should be short connected. Yes Check if the voltage between C and B changes regularly? No Replace the wire controller 7. Models with wired controller Models with wireless remote controller Readout: N/A 10 flashes Description: PG failure in the fan of indoor unit Check if the fan is properly connected to the mainboard. Yes Check if PIN 3 and 1 of CN (color models) or CN8 (regular models) are up to DC 5V. No Yes Check if there is pulse output from PIN and 1 of CN or CN8. Yes Replace the indoor unit mainboard. No Replace the fan. -11-

126 8. Models with wired controller Readout: E9 Models with wireless remote controller 4 flashes of Timer light Description: Transmission error with outdoor unit (an alarm will be given 4 minutes after the appliance is started.) Check if there is repetition in the indoor unit address IDs. Commercial Air Conditioner No Check if the transmission line is shortcircuit or open-circuit; if the shield wires at both ends of transmission line are earthed properly; if the earth wire of outdoor unit is properly earthed. No Disconnect the indoor unit transmission lines from the control panel and connect them to the outdoor unit. Check if the number of indoor units is steady through the outdoor unit mainboard or the test kit. No Check if the transmission resistor and capacitor in indoor unit mainboard are in good condition. See flow chart of troubleshooting for outdoor unit. 9. E: Abrmal mode operation Check all indoor running modes, set them in the same. 10. Timer LED flash 1 times: check if the EEPROM chip is welded badly, modify it. If it is welded well, please replace indoor PCB. -1-

127 Models with wired controller Models with wireless remote controller N/A 8 flashes of Timer light Description: Fault with 1V supply of heavy current board in expansion valve Check if there are ticeable burns or hot components in the mainboard. Use a multimeter to check if the 1V supply in 7805 chip of mainboard is in good condition. Measure the central and the left pins of the chip. Check if the mainboard is properly connected. Replace the mainboard Models with wired controller N/A Models with wireless remote controller 9 flashes of Timer light Description: Fault with polarity of indoor unit (to be determined) Check if the null wire and the live wire of indoor unit are properly connected. Check if the mainboard and the fan wire are ticeably damage. It s recommended to bring spare parts of fan. Connect the fan to see if there is any alarm. If, replace the mainboard. If, replace the fan. -13-