High static Pressure Duct Type Air-conditioner

Transcription

1 High static Pressure Duct Type Air-conditioner Part 1. Product Features In case the ceiling is super-high. Blowing pressure of Indoor Unit can reach 196Pa. The air conditioner delivers cold wind to every indoor corner even the ceiling is super-high. Multi-blowing outlets To satisfy your fitment s needs. Indoor Unit can be installed in various ways to give you a creative space. Fresh air drawn in Fresh air can be drawn in by the Indoor Unit, which improves the Indoor Air Quality greatly. Low noise operation The noise is remarkably low, even lower than Traditional Central Air Conditioner. 88

2 Part 2. Specification Model MHA-26CR MHA-26HR MHA-26CR MHA-26HR Factory Model CE-KF75T1W/Y CE-KFR75T1W/Y CE-KF75T1W/SY CE-KFR75T1W/SY Power supply Ph-V-Hz 1, V~, 50Hz 1, V~, 50Hz 3N, 380V~, 50Hz 3N, 380V~, 50Hz Capacity Btu/h Input W Cooling Rated current A EER Btu/w.h Capacity Btu/h Input W Heating Rated current A COP W/W Moisture Removal L/h Max. input consumption W Max. input current A Starting current A Model ZR34KH-PFJ-522 ZR36K3-PFJ-522 JT90BCBY1L JT90BCBY1L Type SCROLL SCROLL SCROLL SCROLL Brand COPELAND COPELAND DAKIN DAKIN Supplier COPELAND(SU ZHOU) COPELAND(SU ZHOU) DAKIN(XI AN) DAKIN(XI AN) Capacity Btu/h Compressor Input W Rated current(rla) A Locked rotor Amp(LRA) A Thermal protector Internal Internal Internal Internal Capacitor uf / / Refrigerant oil ml Model YLK160-4 YLK160-4 YLK160-4 YLK160-4 Brand WELLING WELLING WELLING WELLING Indoor fan motor Input W Capacitor uf Speed(hi/mi/lo) r/min 1210/1150/ /1150/ /1150/ /1150/1010 a.number of rows Indoor coil b.tube pitch(a)x row pitch(b) mm 25X X X X14.44 c.fin spacing mm d.fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium e.tube outside dia.and type mm Ф7.94, innergroove tube Ф7.94, innergroove tube Ф7.94, innergroove tube Ф7.94, innergroove tube f.coil length x height x width mm 700X300X60 700X300X60 700X300X60 700X300X60 g.number of circuits Indoor air flow (Hi/Mi/Lo) m 3 /h 1320/ / / /1120 Indoor noise level (Hi/Mi/Lo) db(a) 47/44 47/44 47/44 47/44 Dimension (W*H*D) mm 850X380X X380X X380X X380X660 Indoor unit Packing (W*H*D) mm 1075X495X X495X X495X X495X775 Net/Gross weight kg 52/57 52/57 52/57 52/57 Outdoor fan motor Model YDK65-6C1 YDK65-6C1 YDK65-6C1 YDK65-6C1 Brand Xijiao Xijiao Xijiao Xijiao Input W Capacitor uf

3 Speed r/min Outdoor coil a.number of rows b.tube pitch(a)x row pitch(b) c.fin spacing d.fin type (code) mm 25.4 X X X X22 mm Unhydrophilic aluminium Hydrophilic aluminium Unhydrophilic aluminium Hydrophilic aluminium e.tube outside dia.and type mm Ф9.53, bare tube Ф9.53, innergroove tube Ф9.53, bare tube Ф9.53, innergroove tube f.coil length x height x width mm 850X813X22 850X813X44 850X813X22 850X813X44 g.number of circuits Outdoor air flow m 3 /h Outdoor noise level db(a) Dimension(W*H*D) mm 895x860x x860x x860x x860x330 Outdoor unit Packing (W*H*D) mm 972X987X X987X X987X X987X406 Net/Gross weight kg 73/84 79/90 73/84 79/90 Refrigerant type R22 g Design pressure MPa 1.2/ / / /2.6 Liquid side mm(inch) Φ9.53(3/8") Φ9.53(3/8") Φ9.53(3/8") Φ9.53(3/8") Refrigerant piping Gas side mm(inch) Φ16 (5/8") Φ16 (5/8") Φ16 (5/8") Φ16 (5/8") Max. refrigerant pipe length m Max. difference in level m Connection wiring No No No No Plug type No No No No Thermostat type Electronic Control Electronic Control Electronic Control Electronic Control Operation temp 17~ ~ Ambient temp 18~ ~ Application area m Qty per 20 /40 /40'HQ set 28/65/74 28/65/74 28/65/74 28/65/74 Model MHA-36CR MHA-36HR MHA-48CR MHA-48HR Factory Model CE-KF105T1W/SY CE-KFR105T1W/SY CE-KF140T1W/SY CE-KFR140T1W/SY Power supply Ph-V-Hz 3N, 380V~, 50Hz 3N, 380V~, 50Hz 3N, 380V~, 50Hz 3N, 380V~, 50Hz Capacity Btu/h Cooling Heating Input W Rated current A EER Btu/w.h Capacity Btu/h Input W Rated current A COP Btu/w.h

4 Moisture Removal L/h Max. input consumption W Max. input current A Starting current A Model JT160BCBY1L JT160BCBY1L JT160BCBY1L JT160BCBY1L Type SCROLL SCROLL SCROLL SCROLL Brand DAKIN DAKIN DAKIN DAKIN Supplier DAKIN(XI AN) DAKIN(XI AN) DAKIN(XI AN) DAKIN(XI AN) Capacity Btu/h Compressor Indoor fan motor Indoor coil Input W Rated current(rla) A Locked rotor Amp(LRA) A Thermal protector Internal Internal Internal Internal Capacitor uf / / / / Refrigerant oil ml Model YLK400-4 YLK400-4 YLK400-4 YLK400-4 Brand WELLING WELLING WELLING WELLING Input W Capacitor uf Speed(hi/mi/lo) r/min 1250/1110/ /1110/ /1110/ /1110/1010 a.number of rows b.tube pitch(a)x row pitch(b) mm 25X X X X14.44 c.fin spacing mm d.fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium e.tube outside dia.and type mm Ф7.94, innergroove tube Ф7.94, innergroove tube Ф7.94, innergroove tube Ф7.94, innergroove tube f.coil length x height x width mm 900X300X60 900X300X60 900X300X60 900X300X60 g.number of circuits Indoor air flow (Hi/Lo) m 3 /h 2000/ / / /1600 Indoor noise level (Hi/Lo) db(a) 50/47 50/47 50/47 50/47 Dimension (W*H*D) mm 1200X380X X380X X380X X380X660 Indoor unit Packing (W*H*D) mm 1425X495X X495X X495X X495X775 Net/Gross weight kg 65/72 65/72 65/72 65/72 Model YDK65-6C-WL;YDK65-6FC YDK65-6C-WL;YDK65-6FC YDK65-6C-WL;YDK65-6FC YDK65-6C-WL;YDK65-6FC Brand Welling Welling Welling Welling Outdoor fan motor Input W Capacitor uf 3.5x2 3.5x2 3.5x2 3.5x2 Speed r/min Outdoor coil a.number of rows b.tube pitch(a)x row pitch(b) mm 25.4 X X X X22 c.fin spacing mm d.fin type (code) Unhydrophilic aluminium Unhydrophilic aluminium Unhydrophilic aluminium Unhydrophilic aluminium e.tube outside dia.and type mm φ9.53,innergroove tube Ф9.53, bare tube φ9.53,innergroove tube Ф9.53, bare tube f.coil length x height x width mm 715X1220X22 715X1220X44 715X1220X22 715X1220X44 g.number of circuits Outdoor air flow m 3 /h Outdoor noise level db(a)

5 Dimension(W*H*D) mm 940x1245x x1245x x1245x x1245x360 Outdoor unit Packing (W*H*D) mm 1018X1377X X1377X X1377X X1377X434 Net/Gross weight Kg 110/ / / /127 Refrigerant type g Design pressure MPa 2.6/ / / /1.2 Liquid side mm(inch) Φ12.7(1/2") Φ12.7(1/2") Φ12.7(1/2") Φ12.7(1/2") Gas side Refrigerant piping mm(inch) Φ19.0(3/4") Φ19.0(3/4") Φ19.0(3/4") Φ19.0(3/4") Max. refrigerant pipe length m Max. difference in level m Connection wiring No No No No Plug type No No No No Thermostat type Electronic Control Electronic Control Electronic Control Electronic Control Operation temp Ambient temp 18~ ~ Application area m Qty per 20 /40 /40'HQ set 22/46/46 22/46/46 22/46/46 22/46/46 Model MHA-24HRN2 MHA-24HRN2 MHA-30HRN2 Factory Model CE-KFR71T1W/N2Y CE-KFR71T1W/N2SY CE-KFR90T1W/N2SY Power supply Ph-V-Hz 1, V~, 50Hz 3N, 380V~, 50Hz 3N, 380V~, 50Hz Cooling Heating Capacity Btu/h Input W Rated current A EER Btu/w.h Capacity Btu/h Input W Rated current A COP Btu/w.h Moisture Removal L/h Max. input consumption W Max. input current A Starting current A Compresso r Model HQ034PAA C-SBN263H8A C-SBN263H8A Type SCROLL Scroll Scroll Brand LG SANYO SANYO Supplier LG(KOREA) SANYO SANYO Capacity Btu/h Input W

6 Indoor fan motor Rated current(rla) A Locked rotor Amp(LRA) A 61 Thermal protector INTERNAL TYPE INTERNAL TYPE INTERNAL TYPE Capacitor uf 60 / / Refrigerant oil ml 750 DAPHN-E FV68S 1700 DAPHN-E FV68S 1700 Model YLK160-4 YLK160-4 YLK160-4 Brand WELLING WELLING WELLING Input W Capacitor uf Speed(hi/mi/lo) r/min 1210/1150/ /1150/ /1150/1010 a.number of rows b.tube pitch(a)x row pitch(b) mm 25X X X14.44 c.fin spacing mm Indoor coil d.fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium e.tube outside dia.and type mm Ф7.94, innergroove tube Ф7.94, innergroove tube Ф7.94, innergroove tube f.coil length x height x width mm 700X300X60 700X300X60 700X300X60 g.number of circuits Indoor air flow (Hi/Lo) m 3 /h 1320/ / /1150 Indoor noise level (Hi/Lo) db(a) 47/44 47/44 47/44 Dimension (W*H*D) mm 850X380X X380X X380X660 Indoor unit Packing (W*H*D) mm 1075X495X X495X X495X775 Outdoor fan motor Outdoor coil Net/Gross weight Kg 52/57 52/57 52/57 Model YDK53-6H YDK53-6H YDK53-6H Brand WELLING WELLING WELLING Input W Capacitor uf Speed r/min a.number of rows b.tube pitch(a)x row pitch(b) mm 25.4x x x22 c.fin spacing mm d.fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium e.tube outside dia.and type mm Ф9.53, innergroove tube Ф9.53,innergroove tube Ф9.53, innergroove tube f.coil length x height x width mm 850X813X44 850*813*44 850X813X44 g.number of circuits Outdoor air flow m 3 /h Outdoor noise level db(a) Dimension(W*H*D) mm 895X860X X860X X860X330 Outdoor unit Packing (W*H*D) mm 972X987X X987X X987X406 Net/Gross weight Kg 79/90 79/90 79/90 Refrigerant type g R407C/2500 R407C/2350 R407C/2350 Design pressure MPa 1.2/ / /3.5 Liquid side/ Gas side mm(inch) Ф9.53(3/8")/Ф16(5/8") Ф9.53(3/8")/Ф16(5/8") Ф9.53(3/8")/Ф16(5/8") Refrigerant Max. refrigerant pipe length piping m Max. difference in level m Connection wiring No No No Plug type No No No Thermostat type Electronic Control Electronic Control Electronic Control 93

7 Operation temp Ambient temp Application area m Qty per 20 /40 /40'HQ set 28/65/74 28/65/74 28/65/74 Model MHA-36HRN2 MHA-48HRN2 MHA-60HRN2 Factory Model CE-KFR105T1W/N2SY CE-KFR140T1W/N2SY CE-KFR160T1W/N2SY Power supply Ph-V-Hz 3N, 380V~, 50Hz 3N, 380V~, 50Hz 3N, 380V~, 50Hz Cooling Heating Capacity Btu/h Input W Rated current A EER Btu/w.h Capacity Btu/h Input W Rated current A COP Btu/w.h Moisture Removal L/h Max. input consumption W Max. input current A Starting current A Model C-SBN303H8A C-SBN373H8A C-SBN453H8A Type Scroll SCROLL Scroll Brand SANYO SANYO SANYO Supplier SANYO(DA LIAN) SANYO(DA LIAN) SANYO(DA LIAN) Capacity Btu/h Compressor Input W Rated current(rla) A Locked rotor Amp(LRA) A Thermal protector INTERNAL TYPE INTERNAL TYPE INTERNAL TYPE Capacitor uf / / / Refrigerant oil ml DAPHN-E FV68S DAPHN-E FV68S 1700 Indoor fanmodel YLK400-4 YLK400-4 YLK400-4 motor Brand WELLING WELLING WELLING 94

8 Indoor coil Input W Capacitor uf Speed(hi/mi/lo) r/min 1250/1110/ /1110/ /1110/1010 a.number of rows b.tube pitch(a)x row pitch(b) mm 25X X X14.44 c.fin spacing mm d.fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium e.tube outside dia.and type mm Ф7.94, innergroove tube Ф7.94, innergroove tube Ф7.94, innergroove tube f.coil length x height x width mm 900X300X60 900X300X60 900X300X60 g.number of circuits Indoor air flow (Hi/Lo) m 3 /h 2000/ / /2200 Indoor noise level (Hi/Lo) db(a) 50/47 50/47 50/47 Indoor unit Outdoor fan motor Dimension (W*H*D) mm 1200X380X X380X X380X660 Packing (W*H*D) mm 1425X495X X495X X495X775 Net/Gross weight kg 65/72 65/72 65/72 Model YDK250-6D-WL YDK65-6-WL;YDK65-6F YDK65-6-WL;YDK65-6F Brand WELLING WELLING WELLING Input W Capacitor uf x2 3.5x2 Speed r/min a.number of rows b.tube pitch(a)x row pitch(b) mm 25.4x X x22 c.fin spacing mm Outdoor coil d.fin type (code) Unhydrophilic aluminium Unhydrophilic aluminium hydrophilic aluminium e.tube outside dia.and type mm Ф9.53,innergroove tube Ф9.53, bare tube Ф9.53, innergroove tube f.coil length x height x width mm 955*915*44 715X1220X44 715*1220*44 g.number of circuits Outdoor air flow m 3 /h Outdoor noise level db(a) Dimension(W*H*D) mm 990*960* X1245X *1245*400 Outdoor unit Packing (W*H*D) mm 1120*1090* X1377X *1377*434 Net/Gross weight kg 101/ / /125 Refrigerant type g R407C/2700 R407C/4050 R407C/4300 Design pressure MPa 1.2/ / /3.5 Refrigerant piping Liquid side/ Gas side mm(inch) Ф12.7/Ф19.0 Ф12.7/Ф19 Ф12.7/Ф19 Max. refrigerant pipe length m Max. difference in level m Connection wiring NO No No Plug type NO No No Thermostat type Electrolic control Electronic Control Electronic Control Operation temp Ambient temp -10 ~ Application area m Qty per 20 /40 /40'HQ set 24/54/62 22/46/46 22/46/46 95

9 Part 3. Electric Control Functions 1. Performance Index No. Item Index 1 Applicable Voltage Range V~ (SINGLE PHASE) V~ (3- PHASE) 2 A/C Frequency 50Hz 3 Working environment temperature -7 C- +45 C 2. Main Parts Introduction 2.1 Operation Mode Operation mode can be set into auto, cooling, heating, dehumidifying and fan mode. 2.2 Temperature range can be set between: 17 C -30 C 2.3 Compressor Auxiliary start-up function: when the compressor starts up with single phrase, the main chip output will be in high level. 4 seconds after start-up circuit is engaged, the main chip output will be in low level and the start-up circuit shut down. 2.4 Indoor Fan The motor is a tapping motor with iron-made outer cover and high, low and fine tuning speed selections driven by three relays separately. The main chip will act when its output is high level. Under any circumstances, only one fan speed is allowed. 2.5 Outdoor Fan The motor is a tapping motor with iron-made outer cover and high, low speed options controlled by relays separately. The main chip acts when its output is high level. 2.6 Buzzer It will buzz when its driving port in the main chip outputs high level It will buzz twice with each lasting 0.5 second at 0.5 intervals when the main frame receives remote start-up signal It will buzz once for 1 second when receiving turn-off signal It will buzz for 0.5 second once receiving other signal It will not buzz when receiving abnormal signal. 2.7 Indicator There are 4 indicators: operating indicator, timer indicator, water level warning indicator, defrosting indicator 96

10 and pre-heating indicator (wind-delivery indicator for cooling-only A/C) The light-emitting diode driven by the main chip will light when the level is low LED indicates errors when protection is in effective. 2.8 Four-way Valve It is controlled by relays. The main chip acts when output is high level. 2.9 Heating Condition for Crankcase The crankcase will be heated when the temperature of the outer pipe is below 7 C and the compressor is off The crankcase will no longer be heated when the temperature of the outer pipe is over 15 C The crankcase will no longer be heated when the compressor is on Selection Channel for Quick Check The main frame will enter the quick check status if the channel is in low position when energizing. 1 minute will be shortened to 1 second during this period, however, other status will remain unchanged. 3. Operation Modes and Functions 3.1 Manual Operation The manual operation mode is controlled through manual pad in the wind in-take grid, including such two modes as manual action and manual cooling. Push the manual pad for each switchover, the order for which is shown below: REMOTE CONTROL MANUAL ACTION MANUAL COOLING Manual Cooling Under this mode, no remote control signal will be received The compressor is started up unconditionally and the rotating speed of indoor and outdoor fans is set to be in high and forced cooling operation. At the same time, the wind grille is forced to swing (irrelevant to temperature setting and environment temperature) and will be automatically switched over to manual mode 30 minutes later, under which manual mode will be in effective Under this mode, the buzzer will buzz twice with each lasting 0.5 second at 0.5 interval. During the first 30 minutes of unconditional forced cooling operation, the operation indicator will blink at 0.5Hz. In the process of switchover to manual action mode, the buzzer buzzes for 0.5 second and the indicator is illuminated Under this mode, the corresponding protections are in effective (3- minute delayed start-up, over current, outdoor protection and evaporator low temperature protection.). Corresponding protection will act once any protection is in active. Push manual pad once to end this mode and enter the remote control pending status. The buzzer will buzz for 1 second and the indicator turn off Manual Action Under this mode, the remote signal will be received and corresponding actions will be taken accordingly upon the receipt of the remote signal On entering this mode, the buzzer will buzz for 0.5 second and the indicator on The system will operate under the auto mode whose temperature is set to be 24 C and at the same time, the wind grille will swing automatically Under this mode, corresponding protections are in effective. Push manual pad to end this mode and switch over to manual cooling mode. 97

11 3.2 Heating Mode Four-way valve opens at once, while defrosting process closes Condition for the compressor action: (Ts = set temperature, Ta = room temperature) Condition Compressor Outdoor fan Room temp. up Room temp. down Indoor Fan Action Ta > Ts+4 Off Off Ta <Ts+4 On On Ta < Ts+3 On On Ta >Ts+3 Off Off Anytime remote switchover for fan speed among high/low/auto(anti-cold air function takes priority) Anti-cold air: Switchover between fan speed and fine tune can be set according to temperature of evaporator pipe. Condition Indoor fan speed T= Indoor exchanger temp. Indoor exchanger temp. up T<25 C Off 25 C <T<32 C Breeze Indoor exchanger temp. down T>32 C Setting fan speed T> 30 C Setting fan speed 15 C <T<30 C Breeze T<15 C Off During anti-cold air period, if indoor fan is shut down, then pre-heating/defrosting lamp is on. Once indoor fan starts, pre-heating/defrosting lamp will be off Auto fan of indoor fan under heating mode. Condition (T=Indoor Temp.-Setting Temp.) Room temp. up Room temp. down 3.3 Defrost (only available to heating mode) Defrosting Conditions Low temperature defrosting condition: T<3 T>3 Indoor fan speed High Low T> 1 Low T<1 Accumulated operating time when temperature of outdoor heat exchanger coil T3 is below -2 C reaches up to over 40 minutes High temperature defrosting condition: Under high temperature protection of evaporator, the time when outdoor fan is shut down but compressor is not has been accumulated for up to 90 minutes. It is considered that defrosting is performed when either or is met Defrosting Action Four-way valve, indoor fan, outdoor fan are shut down. Compressor keeps on continuously Ending Of Defrosting Condition It is considered that defrosting condition is ended when any of the conditions is met: Operating current of compressor reaches 1.5Ie(Rating current) Time of defrosting reaches 10 minutes Temperature of outdoor coil T3 is up to 20 C Ending Action of Defrost Outdoor fan and four-way valve are open. High 98

12 Compressor keeps on continuously Indoor fan acts according to anti-cold air function Defrosting/pre-heating lamp continues to be on until indoor fan starts up. 3.4 Cooling Mode Four-way valve is closed. If four-way valve is open before the machine enters cooling mode, then four-way valve will be closed at the first time the compressor starts under the cooling mode Conditions for the compressor and outdoor fan action (Ts = set temperature, Ta=room temperature) Condition Compressor Outdoor fan Room Temp. up Room Temp. down Action of Indoor Fan Ta> Ts+1 On On Ta<Ts+1 Off Off Ta> Ts On On Ta<Ts Off Off HIGH/LOW/AUTO fan can be switched over for your comfort Auto fan under cooling mode. Condition (T=Indoor Temp.-Setting Temp.) Temp. up Temp. down T<4 T>4 Indoor fan speed Low High T> 1 High T<1 Low 3.5 Dehumidifying Mode Dehumidifying mode is the cooling operation, under which the indoor fan is high and outdoor fan is low If certain protective condition is met, operation will be carried out. 3.6 Auto Mode Under auto mode, the indoor fan is set to be auto (refer to auto fan under cooling, heating) When entering auto mode, the heating, fan only or cooling operation will be automatically chosen according to the room temperature Ta and the set temperature Ts When Ta < Ts - 1 c, it performs the heating operation with a set temperature of Ts - 10 c (refer to the heating mode). However the cool only model will be in low fan When Ts + 2 c Ta Ts - 1 c, it will be in low fan When Ta > Ts +2 c, it performs the cooling operation with a set temperature of T (refer to the cooling mode) After one mode is chosen, if the condition Ta > Ts+1 c or Ta < Ts - 4 c lasts for 15 minutes, meanwhile the compressor doesn't start up within consecutive 15 minutes, the operation mode will be re-chosen according to the Ta and Ts If certain condition is met, then the corresponding protective function will be executed. 3.7 Fan Only Mode Under this mode, four-way valve, compressor and outdoor fan are shut down High/Low/Auto fan can be switched over through manual control. Auto fan will be controlled in line with cooling auto fan with temperature set to be 23 C Under this mode, operation lamp will be on. 99

13 4. Other Functions 4.1 LED Display Operation lamp, timer lamp, defrosting/pre-heating lamp, and water level alarm lamp Operation Lamp When the operation is recovering, it will blink at 1 Hz. After the air-conditioner is on, the lamp will keep on. After the air-conditioner is off, the lamp will be off. When the air-conditioner is switched over from manual cooling to remote control, the lamp will be off Timer Lamp During timer operation, it will be on Defrosting/Pre-Heating Lamp When heat pump model performs defrosting or anti-cold air, it will be on In addition to displaying normal operation status, these lamps can be combined to indicate various errors. 4.2 Timer The machine should be provided with max. Interval of 24h and min. resolution ratio of 15 minutes. Off timer: Timer on: set the start-up before closing down the A/C. At this moment, operation lamp will be off. Timer indicator is on and the A/C will start when the set time is up Off timer: if closedown time for the A/C is set, the A/C will close down when the set time is up On/off timer: set start-up time and closedown time before closing the A/C, it will start when the set start-up time is up and close down when the set closedown time is up Off/on timer: if both closedown time and start-up time are set, it will close down when the set time is up and start automatically when the set start-up time is up. Note: The timer is valid for one operation of the A/C. 5. Trouble Shooting 5.1 Protective Function minute delay for the compressor start-up. At the beginning of energizing or after the stop of the compressor, 3-minute delay will be needed to start the compressor. When switching over between cooling/heating mode, the compressor stops automatically Compressor current overload protection Condition Indoor fan Compressor Outdoor fan Remark Amps up Amps down I<I 2 On On On I 2 <I< I 3 On Off Off After 5 Minutes I 3 <I Off Off After 3 Seconds I 3 <I Off Off After 3 Seconds I 1 <I< I 3 Off Off After 5 Minutes I< I 1 On On On Remark :Ie: rating current; I 1 :1.3 time Ie; I 2 :1.5 time Ie; I 3 :2.0 time Ie The compressor and outdoor fan closed for protection purpose will restart after 3 minutes During the protection, the indoor fan continues working at a set speed, while the anti-cold air function of heating and the compressor will be 3 minutes delayed to shut down for protection. 100

14 When there are 4 times compressor protection within one hour, the A/C will be shut down, meanwhile the operation light and timer light will be turned on, the defrosting light flashes at a frequency of 0.5Hz. This situation will be recovered only when power is switched off Evaporator protection against high temperature(heating mode) Indoor exchanger temp. up Indoor exchanger temp. down Condition Compressor Outdoor fan T= Indoor exchanger temp. T<50 C On On 50 C <T<56 C On Low speed 56 C <T<60 C On Off T>60 C Off Off T>54 C Off Off 45 C <T<54 C On Off T<45 C On On Note: During protection, the indoor fan continues operating at a setting speed, while the anti-cold air function of heating and the compressor will be 3 minute delayed to shut down for protection Evaporator Protection against low temperature(cooling mode) When the evaporator pipe temperature 2 c and this lasts for 5 minutes, the compressor and outdoor fan will be shut off When the evaporator pipe temperature 7 c, it recovers When T3<31 c, outdoor fan performs low fan When T3 31 c, outdoor fan performs high fan The restart of the compressor shall execute the delay protection Anti-cold air protection Only available to heating mode, including heating mode, heating operation under auto mode Condenser high temperature protection Only available to cooling (incl. cooling mode, cooling operation under auto mode) and dehumidifying mode Action condition Outdoor exchanger temp. up Outdoor exchanger temp. down Condition Compressor Outdoor fan T=Outdoor exchanger temp. T>65 C Off Off Delay protection should be performed when the compressor restarts Single Phrase Compressor Start-up Control Single phrase compressor must have start-up circuit: T<56 C On On T>60 C Off Off T<50 C On On 1 second before the start-up of the compressor, the chip will output high level consecutively for 5 seconds in order to engage the start-up capacitor that will be open afterwards Outdoor Protection When outdoor protection signal is high level, outdoor door unit will perform protection: the whole machine will be shut down while the LED will indicate the corresponding protection signal. 101

15 The A/C will recover if outdoor errors are eliminated after the outdoor protection occurs. 102

16 5.2 Self-diagnosis Indoor unit No. Type Contents LED Flashing Remark 1 protection Over current protection of the compressor occurs 4 times in 1h Lamps of operation, timer, defrosting (only fan) flashing simultaneously at 5Hz. 2 protection Outdoor protection (absent phrase, phrase All lamps flashing at 5Hz sequence and temperature protection) 3 error Room temperature sensor checking channel Timer lamp flashing at 5Hz is abnormal 4 error Evaporator sensor checking channel is abnormal Operation lamp flashing at 5Hz 5 error Condenser sensor checking channel is abnormal Defrosting lamp flashing at 5Hz 6 error Temperature fuse is melt(reserved) Operation lamp and timer lamp flashing at 5Hz Whole unit is shut down. It cannot recover unless power is cut off Recover automatically after errors are eliminated LEDs for the indication of outdoor trouble(3 phase type,3hp) Type Contents LED1 LED2 LED3 Normal Off Off On Trouble Phase sequence On Off On Trouble Overload of current Off On On Trouble Lack of phase On On On Trouble Protection of pressure On On On LEDs for the indication of outdoor trouble(3 phase type,5hp) Type Contents LED1 LED2 LED3 Trouble Phase sequence Flash Off Off Trouble Lack of phase Flash Off Off Trouble Protection of pressure Flash Flash Off Trouble Overload of current Off Off Flash Trouble Open-circuit and short-circuit trouble of T3 Off Flash Flash Trouble Open-circuit and short-circuit trouble of T4 Off Flash Off Trouble High temperature protection of condenser Flash Flash Flash 103

17 CN 3 8 CN 3 7 Y & G B L A C K RE D Part 4. Wiring Diagram 1 MHA-26CR ( V~) INDOOR UNIT: L N 1 2(N) 3 4 OUTDOOR UNIT: RT 3 XS 1 XP CURRE NT DET ECT OR B OA RD CN3 6 CN3 5 T 5 F AN2 RE D CODE P ART NAME WHI T E WHI T E X T 6 CAP B ROWN GR E N B L A CK Y E L L OW B L A CK R E D X T 4 BL ACK RE D A1 R E D K M1 RE D RE D A2 B L A CK BL ACK Y& G Y& G C S COMP B L A C K R C1 WHI T E XS 3 XP 3 XS 4 XP 4 X T T O I NDOOR UNI T T O I NDOOR UNI T 104

18 2 MHA-26HR( V~) INDOOR UNIT: OUTDOOR UNIT: B. H. T CRANKCASE HEATER 105

19 3 MHA-26CR (380V, 3N~) INDOOR UNIT: OUTDOOR UNIT: 106

20 4 MHA-26HR (380V, 3N~) INDOOR UNIT: OUTDOOR UNIT: 107

21 RED 5 MHA-36CR,MHA-48CR INDOOR UNIT: OUTDOOR UNIT: CN301 UNI T3 TT1 XS8 XP8 3 OR2 RT3 CN304 XP7 XS7 3 CN305 TOINDOORUNI T XP3 CN303 FAN2 CN302 RED BLUE KM1 A2 A RED K1 XT5 FAN3 4 WHI TE RED V U COMP W XT7 XT4 RED TOINDOORUNI T XT1 TOINDOORUNI T XT1 108

22 RED 6 MHA-36HR,MHA-48HR INDOOR UNIT: OUTDOOR UNIT: XS8 XP8 CN301 UNI T3 TT1 CN304 CN302 3 OR2 CN305 CN303 RT3 XP7 XS7 3 TOI NDOORUNI T XP3 FAN2 RED 4 BLUE A1 KM1 A WHI TE V COMP RED RED RED U HEAT K1 XT5 BLUE XT6 FAN3 W XT7 S. V. XT4 TOI NDOORUNI T XT1 RED YELLOW TOI NDOORUNI T XT1 109

23 7 MHA-24HRN2( V~) INDOOR UNIT: CAP1 CN1- CN16 T4 FAN1 RT1 RT2 XP1- XP3 XS1- XS3 XT1 L N XT1 OUTDOOR UNIT: CAP1 VALVE CAP1 R S Y&G C WHI TE RED BLACK XP1 RT3 XS1 RED XT1 1 N

24 8 MHA-24HRN2, MHA-30HRN2 (380V,3N~) INDOOR UNIT: CAP1 CN1-16 T4 FAN1 PUMP RT1 RT2 XP1- XP7 XS1- XS7 XT1 XT3 A B C N XT1 OUTDOOR UNIT: 111

25 9 MHA-36HRN2(380V,3N~) INDOOR UNIT: OUTDOOR UNIT: H- PRO K1 XS9 XP9 XS8 XP8 CN206 CN203 CN208 COMP FAN3 RT4 RT3 CN201 CN100 CN200 T201 CAP3 S. V. XT5 KM1 KM1 HEAT S. V. XT4 XT7 XT5-7 FAN3 H- PRO T201 COMP RT3 CAP3 XT6 HEATER XS8-9 XP8-9 CN K1 XT XT3 N RT4 XT3 T5 112

26 10 MHA-48HRN2,MHA-60HRN2 INDOOR UNIT: OUTDOOR UNIT: H- PRO K1 XS9 XP9 XS8 XP8 CN206 CN203 CN208 COMP FAN3 FAN4 RT4 RT3 CN201 CN100 CN200 CAP3 CAP4 S. V. XT5 KM1 KM1 HEAT S. V. XT2 XT7 XT5-7 FAN3 H- PRO T201 COMP RT3 CAP3 XT6 HEATER XS8-9 XP8-9 CN FAN4 K1 XT XT1 N RT4 XT1 CAP4 T5 113

27 ITEM C1 C3,C4 CAP1 CAP2 CNO-16 COMP CT F1+F2 FAN1 FAN2 K1 K2 K3 K4 KM1 KM2,KM3 M PUMP R1-R3 RS RT1 RT2,RT3 S.V.T KP1 XS1-XS3 XT1,XT2,XT4 XT3 XT5 T4 NAME CRANECASE HEATING CAPACITY FOR COMPRESSOR RUNNING CAPACITY FOR COMPRESSOR STARTING CAPACITY FOR INDOOR FAN CAPACITY FOR OUTDOOR FAN P.C.BOARD SOCKET COMPRESSOR CURRENT MUTUAL INDUCTOR THERMAL CUT-OUT INDOOR FAN OUTDOOR FAN TEMPERATURE PROTECTION SWITCH PIPE OVERLAOD SWITCH WATER LEVEL WARNING SWITCH THERMAL PROTECTION SWITCH A/C CONTACTOR RELAY SWING MOTOR DRAIN PUMP ELECTRIC HEATING PIPE RELEASE RESISTANCE ROOM TEMPERATURE SENSOR PIPE TEMPERATURE SENSOR 4-WAY VALVE MIDDLE CONNECTOR MIDDLE CONNECTOR 6-WAY TERMINAL BLOCK 3-WAY BIGGER TERMINAL BLOCK MIDDLE TERMINAL BLOCK TRANSFORMER 114

28 Part 5. External Static Pressure of the Indoor Fans Pa Pa m 3 MHA-18HR High speed Med. speed Low speed m 3 High speed Med. speed Low speed MHA-26H(C)R MHA-24H(C)R(N2) Pa High speed Med. speed m 3 MHA-36(48)H(C)R(N2) Low speed 115