OUTDOOR AIR UNIT DTV_OAE034E_03--CHAPTER

Transcription

1 DTV_OAE034E_03--CHAPTER

2 CONTENTS 1. FEATURES... A SPECIFICATIONS... A ELECTRIC CHARACTERISTICS... A DIMENSIONS... A REFRIGERANT CIRCUIT...A WIRING... A WIRING DIAGRAMS... A WIRING METHOD... A FAN PERFORMANCE CURVE... A NOISE LEVEL CURVE... A SAFETY DEVICES... A OPERATION LIMIT... A MODEL SELECTION... A CALCULATION METHOD ON REQUIRED VENTILATION VOLUME... A SELECTION PROCEDURE ON (OAU)... A CAPACITY TABLE... A SYSTEM DESIGN... A REFRIGERANT SYSTEM... A EXAMPLE OF REFRIGERANT SYSTEM... A VRF NETWORK SYSTEM... A TRANSMISSION LINE... A REMOTE CONTROLLER WIRING... A-43

3 CONTENTS 14. FUNCTION SETTINGS... A SETTING BY SWITCH... A SETTING BY REMOTE CONTROLLER... A EXTERNAL INPUT & OUTPUT... A EXTERNAL INPUT... A EXTERNAL OUTPUT... A OPTIONAL PARTS... A EXTERNAL INPUT / OUTPUT FUNCTION SUMMARY... A IMPORTANT NOTICES... A OPTIONAL PARTS... A CONTROLLERS... A OTHERS... A-66

4 111 FEATURES MODELS : ARXH054GTAH, ARXH072GTAH, ARXH096GTAH The heat pump method efficiently processes the outdoor air for cooling and heating and supplies 100% fresh air into a room. ONE VRF SYSTEM CAN PROVIDE AIR CONDITIONING AND AIR SUPPLY AT THE SAME TIME Outdoor Air Unit can be connected in a same VRF*1 system as one of indoor unit series and can create fresh and comfortable air supply together from our high advanced technology. *1 V-II, J-II, J-IIS, VR-II. VRF system Duct Outdoor Air Unit Indoor unit Indoor unit Fan Heat Exchanger Outdoor Air Unit Fresh Air Fresh Air Wired R.C. Wired R.C. Wired R.C. * Make sure the connected is within the range of 50% to 100% of the outdoor unit. In addition, if there are mixed connections with indoor units, make the Outdoor Air Unit connection 30% or less of the outdoor unit. HIGH ENERGY SAVINGS AND FLEXIBLE DUCT DESIGN BY USING DC MOTOR Greatly reduces electricity consumption by adopting permanent magnet compared to when using an AC motor. Compared with AC motor, changing the speed makes it possible to respond flexibly to the external static pressure from 50Pa to 240Pa. Even if damper equipment is not used, static pressure can be adjusted and duct design is easy Static pressure can be set easily using wired remote controller. DC Motor (When external static pressure is small) Low speed 50 to240pa (096type) High speed (When external static pressure is large) AC Motor High speed (constant) Damper opening small (Field supplied) High speed (constant) Damper opening large (Field supplied) TOP CLASS COMPACT DESIGN Top class lightweight compact design at just 425mm in height, 55kg in weight for ARXH072 type. This unit can be installed easily even at narrow space 1367mm 55kg (072type) 425mm (ARXH054/072 type) 572mm - (A-01) -

5 222SPECIFICATIONS Model name ARXH054GTAH ARXH072GTAH ARXH096GTAH Power source 230 V ~, 50Hz Available voltage range 198 to 264 V Capacity Cooling kw Heating Input power W Static pressure range Pa Standard static pressure Pa m 3 / h Airflow rate (l / s) (300) (467) (583) Fan Type x Quantity Sirocco 1 Sirocco 2 Sirocco 1 Motor output W Sound pressure level db(a) Length mm Fin pitch Rows x Stages 4 18 Heat exchanger Face Area m Pipe type (Material) Grooved H-pin (Copper) Type (Material) Slit(Aluminium) Fin Surface treatment Hydrophilic coating Air filter - Enclosure Material Galvanized sheet iron Dimensions Net mm (H x W x D) Gross Weight Net kg Gross Liquid ø 9.52(Flare) ø (Brazing) Connection Gas mm ø (Flare) ø (Brazing) pipe diameter Drain hose VP25 [ø 25(I.D.) ; ø 32(O.D.)] Note: Specifications are based on the following conditions. Cooling: Outdoor temperature of 33 CDB / 28 CWB. Heating: Outdoor temperature of 0 CDB / -2.9 CWB. Pipe length: 7.5 m; Height difference between outdoor unit and indoor unit: 0 m. - (A-02) -

6 333 ELECTRIC CHARACTERISTICS Model ARXH054GTAH Voltage (V) Power Supply Frequency MCA (Hz) (A) 1.40 MFA (A) Indoor Rated Input Power Current ARXH072GTAH 230~ (A) ARXH096GTAH zbreaker requirements Model Recommended cable size (mm 2 ) MFA (A) Breaker for leakage current All models Refer to Table B Remarks 230V~ 50Hz 2Wire + ground Refer to the table for the breaker specifications of each installation condition. Perform the power crossover wiring within the range of the same refrigerant system.when the crossover wiring is done, make a connection for "Outdoor air units", "RB units" and "indoor units" to satisfy conditions Table A and Table B below. Table A. Current breaker requirements Model MCA (A) MFA (A) All models Refer to above 20 MCA : Minimum Circuit Ampacity When the power crossover wiring is done, make it so that the total of the MCA of the connected "Outdoor air units", "RB units" and "indoor units" does not exceed the 15 A. Table B. Earth leakage breaker requirements Breaker Maximum connectable "Units" 30 ma, 0.1 sec or less 44 or less 100 ma, 0.1 sec or less 45 to 128 If the total number of units connected to the breaker exceeds 44, either add a 30mA breaker, or use breakers with a greater. - (A-03) -

7 zmeaning of "Units" Model name "Units" count RB unit UTP-RX01AH UTP-RX01BH 1 UTP-RX01CH UTP-RX04BH 4 Indoor unit AUXB04-24GALH (Except High static pressure duct (72/90 type), AUXD18-24GALH Outdoor air unit) AUXA18-54GALH ARXB07-18GALH ARXD04-24GALH 1 ARXA24-45GBLH ARXC36-60GATH AB*A12-54GATH AS*A04-30GACH AS*E04-14GACH Indoor unit ARXC72-90GBTH 3 (High static pressure duct (72/90 type)) Outdoor air unit ARXH GTAH 2 Example 1) Connectable indoor unit: AS*A09GACH x 4 + AUXB18GALH x 2 + ARXD09GALH Amount of "Units": 1 x x x 1 = 7 Example 2) Connectable indoor unit: ARXH072GTAH + AUXB18GALH x 2 + ARXD09GALH Amount of "Units": 2 x x x 1 = 5 Example 3) Connectable indoor unit: ARXC72GBTH + AUXB09GALH x 2 + ARXD09GALH x 2 + UTP- RX01CH x 1 + UTP-RX04BH x 1 Amount of "Units": 3 x x x x x 1 = 12 Select the power cable type and size in accordance with local regulations. Include at least one breaker and one disconnect per refrigerant system. Power supply circuits should only be connected to units on the same refrigerant circuit. Design the power supply circuit to keep the voltage drop within 2%. - (A-04) -

8 444DIMENSIONS MODEL : ARXH054GTAH (Unit : mm) Rear view Main drain port Safety drain port Side view (R) Side view (L) Top view (Drain hose) Front view ARXH054 Refrigerant pipe flare Liquid ø 9.52 mm connection Gas ø mm Drain hose VP25 [ø 25mm(I.D.) ; ø 32mm(O.D.)] - (A-05) -

9 INSTALLATION PLACE Installation by which service space is made on top of the unit (recommended). (Unit : mm) 350 or more (Service space) 600 or more Service access Installation by which service is carried out from the bottom of the unit. 20 or more (Service space) 600 or more Service access MAINTENANCE SPACE Provide a maintenance space for inspection purposes as shown below. Do not place any wiring or illumination in the service space, as they will impede service. 30 or more [Top view] or more (Unit : mm) 800 or more Unit 500 or more 200 or more : Service access : Service space - (A-06) -

10 MODEL : ARXH072GTAH Rear view Main drain port Safety drain port Side view (R) Side view (L) Top view (Drain hose) Front view ARXH072 Refrigerant pipe flare Liquid ø mm connection Gas ø mm Drain hose VP25 [ø 25mm(I.D.) ; ø 32mm(O.D.)] - (A-07) -

11 INSTALLATION PLACE Installation by which service space is made on top of the unit (recommended). (Unit : mm) 350 or more (Service space) 600 or more Service access Installation by which service is carried out from the bottom of the unit. 20 or more (Service space) 600 or more Service access MAINTENANCE SPACE Provide a maintenance space for inspection purposes as shown below. Do not place any wiring or illumination in the service space, as they will impede service. 30 or more [Top view] or more (Unit : mm) 800 or more Unit 500 or more 200 or more : Service access : Service space - (A-08) -

12 MODEL : ARXH096GTAH (Unit : mm) Rear view Main drain port Safety drain port Side view (R) Side view (L) Top view (Drain hose) Front view ARXH096 Refrigerant pipe flare Liquid ø mm connection Gas ø mm Drain hose VP25 [ø 25mm(I.D.) ; ø 32mm(O.D.)] - (A-09) -

13 INSTALLATION PLACE (Unit : mm) A Service access Service space Maintenance conditions In case of performing maintenance from the top side of the unit. (recommended) In case of performing maintenance from the bottom of the device. When exchanging motor and heat exchanger parts, remove part of the ceiling shown below necessary service space. A (mm) 500 or more 20 or more MAINTENANCE SPACE 200 or more 90 or more [Top view] Air Indoor unit Air 30 or more 1583 : Service access : Service space 200 or less 500 or more 500 or more - (A-10) -

14 555 REFRIGERANT CIRCUIT MODELS: ARXH054GTAH, ARXH096GTAH TH25 FAN21 TH24 HEX21 TH22 EEV21 LIQUID LINE TH21 SV21 GAS LINE MODELS: ARXH072GTAH TH25 FAN21 FAN22 TH24 HEX21 TH22 EEV21 LIQUID LINE TH21 SV21 GAS LINE : Check valve : Capillary : Strainer SYMBOL DESCRIPTION MARK HEX21 FAN21 FAN22 EEV21 SV21 TH21 TH22 TH24 TH25 DESCRIPTION Heat exchanger Fan Fan Electric expansion valve Solenoid valve (Bypass) Suction airflow temperature thermistor Heat exchanger (inlet) thermistor Heat exchanger (outlet) thermistor Discharge airflow temperature thermistor - (A-11) -

15 666 WIRING 66666WIRING DIAGRAMS MODEL : ARXH054GTAH MODEL : ARXH072GTAH - (A-12) -

16 MODEL : ARXH096GTAH - (A-13) -

17 66666WIRING METHOD Outdoor unit or RB unit *1 Transmission Transmission Power supply Outdoor air unit Indoor unit Indoor unit Remote control *2 *3 *2 *3 *2 *3 Breaker Breaker Breaker Power supply Remote controller Remote controller (Master) Remote controller (Slave) *1: When connecting to the Heat Recovery System, refer to the installation manual of the RB unit. *2: Earth (Ground) the remote controller if it has a earth (ground) cable. Connect the earth (ground) cable of the remote controller to the earth (ground) terminal of transmission. *3: When connecting the 2-wire type remote controller, Y3 is not used. (Crossover wiring of power supply) Outdoor air unit Power supply Power supply Indoor unit Power supply Indoor unit Pull box Breaker Power supply Pull box - (A-14) -

18 777FAN PERFORMANCE CURVE MODEL : ARXH054GTAH AIR-HANDLING UNIT Normal mode SP mode18 SP mode17 SP mode16 External Static Pressure [Pa] SP mode15 SP mode14 SP mode13 SP mode12 SP mode11 SP mode10 80 SP mode09 SP mode08 60 SP mode07 SP mode06 SP mode Air Flow [m 3 /h] - (A-15) -

19 MODEL : ARXH072GTAH Normal mode External Static Pressure [Pa] SP mode19 SP mode18 SP mode17 SP mode16 SP mode15 SP mode14 SP mode13 SP mode12 SP mode11 SP mode10 80 SP mode09 SP mode08 60 SP mode07 SP mode05 SP mode Air Flow [m 3 /h] - (A-16) -

20 MODEL : ARXH096GTAH SP mode22 SP mode Normal mode SP mode19 External Static Pressure [Pa] SP mode18 SP mode17 SP mode16 SP mode15 SP mode14 SP mode13 SP mode12 80 SP mode11 SP mode SP mode09 SP mode08 SP mode05 SP mode06 SP mode Air Flow [m 3 /h] - (A-17) -

21 888NOISE LEVEL CURVE MODEL : ARXH054GTAH MODEL : ARXH072GTAH NC-65 NC-65 Octave band sound pressure level, db:(0db=0.0002µbar) High NC-60 NC-55 NC-50 NC-45 NC-40 NC-35 NC-30 NC-25 NC-20 Octave band sound pressure level, db:(0db=0.0002µbar) High NC-60 NC-55 NC-50 NC-45 NC-40 NC-35 NC-30 NC-25 NC-20 NC-15 NC ,000 2,000 4,000 8,000 Octave band center frequency, Hz ,000 2,000 4,000 8,000 Octave band center frequency, Hz MODEL : ARXH096GTAH NC-65 Octave band sound pressure level, db:(0db=0.0002µbar) High NC-60 NC-55 NC-50 NC-45 NC-40 NC-35 NC-30 NC-25 NC-20 NC ,000 2,000 4,000 8,000 Octave band center frequency, Hz - (A-18) -

22 SOUND LEVEL CHECK POINT 2m 1m Air Air 1.5m MIC - (A-19) -

23 999SAFETY DEVICES Model Protector Fuse Fan motor thermal protector Terminal thermal fuse Float switch ARXH054GTAH ARXH072GTAH ARXH096GTAH 250 V 20 A 250 V 3.15 A 115 ± 15 C OFF 70 C ON / - 10 C OFF / - 10 C ON *1) Fuse for fan motor. - (A-20) -

24 1111 OPERATION LIMIT MODELS : ARXH054GTAH, ARXH072GTAH, ARXH096GTAH Operation mode: Cooling Heating or Stop Fan Cooling Operation mode: Heating Heating Fan Outdoor temperature ( CDB) Operation mode Cooling Heating Fan Details When the intake air temperature is under 18 C, the unit will turn the thermostat off. If the intake air temperature is under 5 C, the unit will force start heating operation. *If the heating operation cannot be started, the unit will conduct protective stop (Thermostat off, Fan off) to prevent frost and so on. When the intake air temperature is over 21 C, the unit will turn the thermostat off. If the intake air temperature is under -7 C, the unit will conduct protective stop (Thermostat off, Fan off). *When operating conditions are under -7 C, pretreat the air by installing a heater in front of the air intake opening. If the intake air temperature is under 5 C, the unit will force start heating operation. *If the heating operation cannot be started, the unit will conduct protective stop (Thermostat off, Fan off) to prevent frost and so on. NOTE: intake air temperature = outdoor temperature. When connecting J-II series, the upper-limit temperature of cooling operation becomes 40 C. - (A-21) -

25 1111 MODEL SELECTION Find usage purposes of room Check on related laws and regulations Determine a design conditions Find the entire plan of air conditioning and smoke ventilation Determine ventilation methods Prepare rough layouts Check air volumes for entire building Determine required ventilation volume Design supply and return grills Duct design Selection the capacities of Outdoor air unit (OAU) Noise check - (A-22) -

26 CALCULATION METHOD ON REQUIRED VENTILATION VOLUME The method to find the required ventilation volume differs depending on the room type and use. It can be, however, largely divided as follows. (1) Method based on the Building Code (2) Method calculated from the required ventilation numbers of room (3) Method calculated from the room (people) etc. The largest air volume among the these methods above is determined as Required Ventilation Volume. (1) Method based on the Building Code (When the number of people in the room is undetermined) Ventilation amount required per person: 30m 3 /h Area occupied per person: Office room : 4m 2 Meeting room : 2.5m 2 Required ventilation volume(m 3 /h) = 30m 3 /h Room floor space (m 2 ) Area occupied per person (m 2 ) ASHRAE standard ; Standard 62.1 Ventilation for Acceptable Indoor Air Quality Standard Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings Standard Energy Standard for Buildings Except Low-Rise Residential Buildings E.g.) 2100 Meeting room A 25m Meeting room B 25m Meeting room C 25m Outdoor Air Unit Square air duct Office room 160m 2 Required ventilation volume of 30 (m 3 /h) 25 (m 2 ) Meeting room A-C = 2.5 (m 2 ) = 300 (m 3 /h) Required ventilation volume of 30 (m 3 /h) 160 (m 2 ) Office room = 4 (m 2 ) = 1200 (m 3 /h) Total required ventilation volume: 300 X = 2100 (m 3 /h) - (A-23) -

27 (2) Method calculated from the required ventilation numbers of room Required ventilation volume(m 3 /h) = Required ventilation numbers per hour (Times/h) x Room volume (m 3 ) E.g. -Location : libraries -Required ventilation numbers (Time/h): 5time/h -Room size : Floor space 30 m 2 Ceiling height : 2.5 m Room volume : =75 m 3 -Required ventilation volume : 5 75=375 m 3 /h (3) Method calculated from the room (people) (When the number of people in the room is determined) Required ventilation volume(m 3 /h) = 30(m 3 /h) x Number of people E.g. -Location : Meeting room -Capacity (people) : 30 people -Required ventilation volume : 30 30=900 m 3 /h - (A-24) -

28 SELECTION PROCEDURE ON (OAU) THE CALCULATION FOR EXTERNAL STATIC PRESSURE There are two methods for duct design: equal pressure method and simplified method. Accurately calculate the duct length, number of bends, and outside installed member pressure loss. Duct design Equal pressure method Simplified method Calculate pressure loss of the straight ducts by usingthe "friction-resistance diagram" Use the member straight duct comparable length table to find the "straight duct comparable length" of the entire duct system. Determine the required static pressure by adding 10 to 20% margins to the calculated pressure loss Select a model satisfying the characteristics with the Fan performance curve - (A-25) -

29 Calculate the duct s resistance value and determines the required static pressure. (Use the equal pressure method) E.g.) 8 Meeting room A 25m Meeting room B 25m Meeting room C 25m Outdoor Air Unit Square air duct Office room 160m : air volume = 300m 3 /h, air velocity =3.4 m/s, cross section = 0.028m 2 (100cm 280cm) 2-9: air volume = 600m 3 /h, air velocity =3.0 m/s, cross section = 0.056m 2 (160cm 350cm) 2-3: air volume = 900m 3 /h, air velocity =4.9 m/s, cross section = 0.056m 2 (160cm 350cm) 3-4: air volume =1200m 3 /h, air velocity =4.8 m/s, cross section = 0.08m 2 (160cm 500cm) 4-5: air volume =1500m 3 /h, air velocity =6.0 m/s, cross section = 0.08m 2 (160cm 500cm) 5-6: air volume =2100m 3 /h, air velocity =6.5 m/s, cross section = 0.1m 2 (200cm 500cm) 7-8: air volume =2100m 3 /h, air velocity =1.9 m/s, cross section = 0.35m 2 (350cm 1000cm) Conduct the duct static pressure calculation for the area with the largest pressure loss. For the example, calculate it using the path The duct resistance differs depending on whether or not it is close to the fan, so a damper, etc., must be used to adjust the air volume. - (A-26) -

30 1. Straight duct (round) pressure loss Duct resistance P (Pa) = λ x L d x ρv 2 2 [Pa/m] λ: Duct pipe coefficient of friction ( ) d: Duct diameter [m] P: Air density = 1.2 [kg/m C] L: Duct length [m] v: Air velocity in duct [m/s] Zinc plated steel pipe λ=0.016 to (Reference value) 2. Round duct Square duct conversion d=1.3{((a x b) 5 (a + b) 2 )} 1/8 [m/cm/mm] d: Comparable diameter a: Length of one side of rectangle b: Length of other side of rectangle 3. Duct local pressure loss (1) Local coefficient of loss P = ζ x ρv 2 2 = ζ Pv [Pa] ζ: Bend coefficient of loss v: Air velocity [m/s] P: Air density = 1.2 [kg/m C] Pv: Dynamic pressure [pa] (2) Duct local pressure loss calculation d V Fig. 1 R Condition: R d = 1.5, v=5 [m/s] ζ = 0.15 Pv = 15 P = 0.15 x 15 = 2.25 [Pa] The static pressure between is about 60 Pa - (A-27) -

31 4. Pressure loss at supply and inlet grilles Check the pressure loss value in the product specifications as it differs depending on shapes. External static pressure = ( ) x 1.1 = 100 Pa [External static pressure = (Static pressure + Inlet grille + Outlet grille + Filter) x Safety ratio] Required condition for OAU Required ventilation volume: 2100 m 3 /h External static pressure : 100 Pa FGL Outdoor Air Unit line up ARXH054GTAH 1080 m 3 /h Pa ARXH072GTAH 1680 m 3 /h Pa ARXH096GTAH 2100 m 3 /h Pa Refer to the fan performance curve to determine a of OAU. - (A-28) -

32 Required ventilation volume: 2100 m 3 /h External static pressure : 100 Pa Initial setting Select ARXH096GTAH And set SP mode 10 Set the static pressure setting (F26) to 10 for the indoor unit local setting." External Static Pressure [Pa] SP mode22 SP mode21 Normal mode SP mode19 SP mode18 SP mode17 SP mode16 SP mode15 SP mode14 SP mode13 SP mode12 SP mode11 SP mode10 SP mode09 SP mode08 SP mode05 SP mode06 SP mode07 * When set to SP mode:00-04, it becomes the static pressure setting of 05. * When set to SP mode:23, it becomes the static pressure setting of Air Flow [m 3 /h] CONCLUSION The required ventilation volume differs depending on the number of people in the room even if the room is used for the same purpose. Refer to the related regulations, because the method for finding the ventilation volume differs depending on the room application. The remote controller must be used to set the static pressure after the OAU is installed. Do not forget to set this. - (A-29) -

33 1111 CAPACITY TABLE MODEL : ARXH054GTAH zcooling [Unit: kw] Outdoor temperature C WB C DB zheating Outdoor temperature C WB C DB MODEL : ARXH072GTAH zcooling [Unit: kw] Outdoor temperature C WB C DB zheating Outdoor temperature C WB C DB NOTES: 1) The data is based on the following conditions: Air discharge temperature setting: 18 C for cooling operation / 25 C for heating operation. Pipe length: 7.5 m, Height difference: 0 m. 2) According to the combination with the outdoor unit or the operating condition, the varies in cooling operation at high outdoor temperature or in heating operation at low outdoor temperature. 3) Value written in shaded row indicates the rated. - (A-30) -

34 MODEL : ARXH096GTAH zcooling [Unit: kw] Outdoor temperature C WB C DB zheating Outdoor temperature C WB C DB NOTES: 1) The data is based on the following conditions: Air discharge temperature setting: 18 C for cooling operation / 25 C for heating operation. Pipe length: 7.5 m, Height difference: 0 m. 2) According to the combination with the outdoor unit or the operating condition, the varies in cooling operation at high outdoor temperature or in heating operation at low outdoor temperature. 3) Value written in shaded row indicates the rated. - (A-31) -

35 1111 SYSTEM DESIGN REFRIGERANT SYSTEM CONNECTABLE OUTDOOR UNIT LINE UP Outdoor unit Outdoor air unit ARXH054 ARXH072 ARXH096 Remarks VR-II series Connection is possible. V-III series Connection is possible. V-II series Connection is possible. J-II series *1 *2 Connection is possible.(only ARXH054) J-IIS series *3 Connection is possible.(only ARXH054) *1: When connecting J-II series, the upper-limit temperature of cooling operation becomes 40 C. *2: The Outdoor unit AJ*A36 (11.2kW) model and AJ*A40 (12.1kW) model can not be connected. *3: The Outdoor unit AJ*040 (12.1kW) model can not be connected. CONNECTABLE UNIT WITHIN 1 REFRIGERANT SYSTEM Unit Connectable cooling range Remarks Only Outdoor air unit 50% to 100% - Outdoor air unit + Indoor unit 50% to 100% The of "Outdoor air unit" should be less than 30% of the outdoor unit. The total of Outdoor air unit + Indoor unit should be 50% to 100% of outdoor unit cooling. (In case of using only Outdoor air unit, it is same.) The of Outdoor air unit should be less than 30% of the outdoor unit. Only Outdoor air unit is available to up to 48HP in VR-II, V-II and 54HP in V-III. - (A-32) -

36 EXAMPLE OF REFRIGERANT SYSTEM HEAT PUMP TYPE zexample 1 (OK) Outdoor unit Capacity ratio 100% Outdoor air unit 1 Model Cooling Total Outdoor unit AJ*A72L Outdoor air unit 1 ARXH Connectable indoor unit Min. Max. 50% 100% Judgement 11.2 < OK zexample 2 (OK) Outdoor unit Capacity ratio 100% Outdoor air unit 1 Outdoor unit (J-IIS) Model Cooling Total AJ*045L Outdoor air unit 1 ARXH Connectable indoor unit Min. Max. 50% 100% Judgement 7.0 < OK zexample 3 (Prohibited) Outdoor unit Capacity ratio 116% Outdoor air unit 1 Outdoor unit (J-IIS) Model Cooling Total AJ*040L Outdoor air unit 1 ARXH Connectable indoor unit Min. Max. 50% 100% Judgement < 12.1 < 14.0 Prohibited - (A-33) -

37 zexample 4 (Prohibited) Outdoor unit Capacity ratio 116% Outdoor air unit 1 Model Cooling Total Outdoor unit (J-II) AJ*A40L Outdoor air unit 1 ARXH Connectable indoor unit Min. Max. 50% 100% Judgement < 12.1 < 14.0 Prohibited zexample 5 (Prohibited) Outdoor unit Capacity ratio 125% Outdoor air unit 1 Model Cooling Total Outdoor unit AJ*A72L Outdoor air unit 1 ARXH Connectable indoor unit Min. Max. 50% 100% Judgement < 22.4 < 28.0 Prohibited zexample 6 (OK) Outdoor unit Capacity ratio 63% Outdoor air unit 1 Model Cooling Total Outdoor unit AJ*A72L Outdoor air unit 1 ARXH Connectable indoor unit Min. Max. 50% 100% Judgement 11.2 < 14.0 < 22.4 OK - (A-34) -

38 zexample 7 (OK) Outdoor unit Capacity ratio 100% Outdoor air unit 1 Outdoor air unit 2 Model Cooling Total Outdoor unit AJ*A90L Outdoor air unit 1 ARXH Outdoor air unit 2 ARXH Connectable indoor unit Min. Max. 50% 100% Judgement 14.0 < OK zexample 8 (OK) Outdoor unit Capacity ratio 50% Outdoor air unit 1 Indoor unit 1 Indoor unit 2 Model Cooling Total Outdoor unit AJ*162L Outdoor air unit 1 ARXH Indoor unit 1 AUXB Indoor unit 2 AUXB Connectable indoor unit Min. Max. 50% 100% Judgement < 50.4 OK Capacity ratio of O.A.U. is 14.0/50.4=28% < 30% OK zexample 9 (Prohibited) Outdoor unit Capacity ratio 90% Outdoor air unit 1 Indoor unit 1 Indoor unit 2 Model Cooling Total Outdoor unit AJ*A90L Outdoor air unit 1 ARXH Indoor unit 1 AUXB Indoor unit 2 AUXB Connectable indoor unit Min. Max. 50% 100% Judgement 14.0 < 25.2 < 28.0 OK Capacity ratio of O.A.U. is 14.0/28.0=50% > 30% Prohibited - (A-35) -

39 HEAT RECOVERY TYPE zexample 10 (OK) Outdoor unit Capacity ratio 100% RB unit 1 RB unit 2 Outdoor air unit 1 Outdoor air unit 2 Outdoor air unit 3 Model Cooling Total Outdoor unit AJ*180G Outdoor air unit 1 ARXH Outdoor air unit 2 ARXH Outdoor air unit 3 ARXH Connectable indoor unit Min. Max. 50% % 56.0 RB unit 1 RX01CH RB unit 2 RX01CH Judgement 28.0 < OK 2.2 < OK 2.2 < OK zexample 11 (OK) Outdoor unit Capacity ratio 50% RB unit 1 RB unit 2 Outdoor air unit 1 Indoor unit 1 Indoor unit 2 Model Cooling Total Outdoor unit AJ*180G Outdoor air unit 1 ARXH Indoor unit 1 AUXB Indoor unit 2 AUXB Connectable indoor unit Min. Max. 50% % 56.0 RB unit 1 RX01BH RB unit 2 RX01BH Judgement 28.0 < 28.2 < 56.0 OK Capacity ratio of O.A.U. is 14.0/56.0=25% < 30% OK 2.2 < 14.0 < 18.0 OK 2.2 < 14.2 < 18.0 OK - (A-36) -

40 zexample 12 (OK) Outdoor unit Capacity ratio 50% RB unit 1 RB unit 2 Indoor unit 1 Outdoor air unit 1 Indoor unit 2 Model Cooling Total Outdoor unit AJ*180G Indoor unit 1 AUXB Outdoor air unit 1 ARXH Indoor unit 2 AUXB Connectable indoor unit Min. Max. 50% % 56.0 RB unit 1 RX01AH RB unit 2 RX01CH Judgement 28.0 < 28.2 < 56.0 OK Capacity ratio of O.A.U. is 14.0/56.0=25% < 30% OK 2.2 < 7.1 < 8.0 OK 2.2 < 21.1 < 28.0 OK zexample 13 (OK) Outdoor unit Capacity ratio 100% RB unit 1 Outdoor air unit 1 Outdoor air unit 2 Outdoor air unit 3 Outdoor air unit 4 Model Cooling Capacity Total Outdoor unit AJ*180G Outdoor air unit 1 ARXH Outdoor air unit 2 ARXH Outdoor air unit 3 ARXH Outdoor air unit 4 ARXH RB unit 1 RX04BH - Connectable indoor unit Min. Max. 50% % Judgement 28.0 < OK 6.6 < OK 2.2 < 14.0 < 18.0 OK - (A-37) -

41 zexample 14 (OK) Outdoor unit Capacity ratio 100% RB unit 1 Outdoor air unit 1 Indoor unit 1 Indoor unit 2 Indoor unit 3 Model Cooling Capacity Total Outdoor unit AJ*180G Outdoor air unit 1 ARXH Indoor unit 1 AUXA Indoor unit 2 AUXA Indoor unit 3 AUXA RB unit 1 RX04BH - Connectable indoor unit Min. Max. 50% % Judgement 28.0 < OK Capacity ratio of O.A.U. is 14.0/56.0=25% < 30% OK 6.6 < OK 2.2 < 14.0 < 18.0 OK zexample 15 (OK) Outdoor unit Capacity ratio 75% RB unit 1 RB unit 2 Outdoor air unit 1 Outdoor air unit 2 Outdoor air unit 3 (Cooling only) Model Cooling Total Outdoor unit AJ*180G Outdoor air unit 1 ARXH Outdoor air unit 2 ARXH Outdoor air unit 3 ARXH Connectable indoor unit Min. Max. 50% % 56.0 RB unit 1 RX01BH RB unit 2 RX01BH Judgement 28.0 < 42.0 < 56.0 OK Capacity ratio of Cooling only type is 14.0/42.0=33% < 50% OK 2.2 < 14.0 < 18.0 OK 2.2 < 14.0 < 18.0 OK - (A-38) -

42 zexample 16 (OK) Outdoor unit Capacity ratio 100% RB unit 1 RB unit 2 Indoor unit 1 Indoor unit 2 Outdoor air unit 1 Indoor unit 3 (Cooling only) (Cooling only) Model Cooling Total Outdoor unit AJ*180G Indoor unit 1 AUXA Indoor unit 2 AUXA Outdoor air unit 1 ARXH Indoor unit 3 AUXA Connectable indoor unit Min. Max. 50% % 56.0 RB unit 1 RX01BH RB unit 2 RX01BH Judgement 28.0 < OK Capacity ratio of O.A.U. is 14.0/56.0=25% < 30% OK Capacity ratio of Cooling only type is 28.0/56.0=50% 50% OK 2.2 < 14.0 < 18.0 OK 2.2 < 14.0 < 18.0 OK - (A-39) -

43 zexample 17 (Prohibited) Outdoor unit Capacity ratio 125% RB unit 1 RB unit 2 RB unit 3 Outdoor air unit 1 Indoor unit 1 Indoor unit 2 Indoor unit 3 Indoor unit 4 Model Cooling Total Outdoor unit AJ*180G Outdoor air unit 1 ARXH Indoor unit 1 AUXA Indoor unit 2 AUXA Indoor unit 3 AUXA Indoor unit 4 AUXA Connectable indoor unit Min. Max. 50% % 56.0 RB unit 1 RX01BH RB unit 2 RX01CH RB unit 3 RX01CH Judgement < 56.0 < 70.0 Prohibited Capacity ratio of O.A.U. is 14.0/56.0=25% < 30% OK 2.2 < 14.0 < 18.0 OK 2.2 < OK 2.2 < OK zexample 18 (Prohibited) Outdoor unit Capacity ratio 100% RB unit 1 RB unit 2 Outdoor air unit 1 Indoor unit 1 Model Cooling Total Outdoor unit AJ*A90G Outdoor air unit 1 ARXH Indoor unit 1 AUXA Connectable indoor unit Min. Max. 50% % 28.0 RB unit 1 RX01BH RB unit 2 RX01BH Judgement 14.0 < OK Capacity ratio of O.A.U. is 14.0/28.0=50% > 30% Prohibited 2.2 < 14.0 < 18.0 OK 2.2 < 14.0 < 18.0 OK - (A-40) -

44 VRF NETWORK SYSTEM MAXIMUM WIRING LENGTH OF VRF NETWORK SYSTEM Transmission line Total wiring length of transmission Maximum wiring length between units Total wiring length in 1 segment Maximum wiring length 3600m 400m 500m VRF network system segment Wiring length 3600m 500m Number of unit THE MAXIMUM CONNECTABLE UNIT zoutdoor unit, Indoor unit and Outdoor air unit Maximum connectable units in one VRF network system Outdoor unit 100 Indoor unit & Outdoor air unit (A-41) -

45 TRANSMISSION LINE WIRING RULES The Outdoor air unit connection method of transmission line is completely the same as other indoor unit. zheat recovery type Connect from Outdoor unit to RB unit Directly connect from OU to Cooling only unit Refrigerant pipe Transmission line Outdoor air unit Indoor unit Indoor unit (Cooling only) Outdoor air unit (Cooling only) Connect from RB unit to Outdoor air unit or Indoor unit zheat pump type Connect from Outdoor unit to Outdoor air unit or Indoor unit Refrigerant pipe Transmission line Outdoor air unit Indoor unit - (A-42) -

46 REMOTE CONTROLLER WIRING WIRING RULES The Outdoor air unit connection method of remote controller wiring is completely the same as other indoor unit. zheat recovery type Refrigerant pipe Indoor unit (Cooling only) Outdoor air unit (Cooling only) Outdoor air unit Indoor unit Remote controller wiring Connect from Outdoor air unit or Indoor unit to Remote controller zheat pump type Refrigerant pipe Outdoor air unit Indoor unit Remote controller wiring Connect from Outdoor air unit or Indoor unit to Remote controller - (A-43) -

47 REMOTE CONTROLLER GROUP The remote controller group can be constructed by only the Outdoor air units or only the Indoor units. Refrigerant pipe Outdoor air unit Indoor unit Remote controller wiring Remote controller group Remote controller group zprohibited The remote controller group can not be constructed, when the Outdoor air unit and Indoor unit is mixed. Refrigerant pipe Outdoor air unit Indoor unit Remote controller wiring Remote controller group Remote controller group - (A-44) -

48 MASTER INDOOR UNIT SETTING zheat recovery type Only 1 master indoor unit can be set up in 1 RB group. Refrigerant pipe Outdoor air unit Set to "Master Indoor unit" Set to "Master Indoor unit" zheat pump type Only 1 master indoor unit can be set up in 1 refrigerant system. Refrigerant pipe Outdoor air unit Set to "Master Indoor unit" zprohibited When the Outdoor air unit and indoor unit is mixed, do not set the R.C. of Outdoor air unit as the "Master indoor unit". Refrigerant pipe Outdoor air unit Indoor unit Don't set to "Master Indoor unit" Set one of these remote controllers as the "Master Indoor unit" - (A-45) -

49 1111 FUNCTION SETTINGS SETTING BY SWITCH SWITCH POSITION DIP switch (type B) SW1 Rotary switch (type C) SW604 SW605 SW606 SW607 SW608 SW PCB DIP switch (Type A) SW601 SW602 DIP switch (type A) Rotary switch (type D) SET2 SET1 Main PCB SWITCH TYPE DIP switch (type A) DIP switch (type B) Rotary switch (type C) Rotary switch (type D) ON 2WIRE 3WIRE - (A-46) -

50 SWITCH TABLE 1 Prohibited (Outdoor air unit ) SET1 2 Prohibited (Outdoor air unit ) 3 Prohibited (Outdoor air unit ) 4 Prohibited (Outdoor air unit ) 1 Prohibited (Outdoor air unit ) SET2 2 External input select "edge/pulse" 3 Fan delay switch DIP-SW type A 4 Prohibited 1 Prohibited SET3 2 Prohibited 3 Prohibited 4 Prohibited 1 Prohibited SET4 2 Prohibited 3 Prohibited 4 Prohibited type B SW1 Remote controller wire type switch IU AD x 1 Indoor unit address switch 1 Rotary SW type C IU AD x 10 REF AD x1 Indoor unit address switch 2 Refrigerant circuit address switch 1 REF AD x10 Refrigerant circuit address switch 2 type D RC AD Remote controller address switch - (A-47) -

51 DIP SWITCH SETTING zset1 and SET2-1 setting (Never change at the site) Outdoor air unit (Setting prohibited) SET1-1 SET1-2 SET1-3 SET1-4 SET2-1 Outdoor air unit ON ON OFF ON OFF 14.0kW ON OFF ON ON OFF 22.4kW ON ON ON ON OFF 28.0kW zset2 setting External input select edge/pulse (u...factory setting) SET2-2 External input select u OFF Edge ON pulse Fan delay switch It is a function to delay the stop of cooling fan when the air conditioner is stopped. When auxiliary heater is connected, please turn "ON" this switch. When you connect auxiliary heater, be careful enough. (u...factory setting) SET2-3 Fan delay u OFF Invalid ON Valid SET2-4 setting prohibited SET2-4 (u...factory setting) u OFF Fixed at OFF ON Setting prohibited - (A-48) -

52 zset3 setting SET3-1, SET3-2, SET3-3, SET3-4 setting prohibited (u...factory setting) SET3-1 SET3-2 SET3-3 SET3-4 u OFF OFF OFF OFF Fixed at OFF ON ON ON ON Setting prohibited zset4 setting SET4-1, SET4-2, SET4-3, SET4-4 setting prohibited (u...factory setting) SET4-1 SET4-2 SET4-3 SET4-4 u OFF OFF OFF OFF Fixed at OFF ON ON ON ON Setting prohibited zsw1 setting Remote controller wire type setting switch (u...factory setting) SW1 Remote controller wire type u 2WIRE 2-Wire type 3WIRE 3-Wire type - (A-49) -

53 ROTARY SWITCH SETTING ziu AD setting Indoor unit address switch Sets the indoor unit addresses. Please see "1-3 address setting" for indoor unit address conversion table. INDOOR UNIT ADDRESS SWITCH (Factory setting IU AD x 1: 0, IU AD x 10: 0) Rotary SW Description Remarks IU AD x 1 Indoor unit address Switch 1 Indoor unit address (the first digit) IU AD x 10 Indoor unit address Switch 2 Indoor unit address (the second digit) zref AD setting Refrigerant circuit address switch Sets the refrigerant circuit address. Please see "1-3 address setting" for refrigerant circuit address conversion table. REFRIGERANT CIRCUIT ADDRESS SWITCH (Factory setting REF AD x 1: 0, REF AD x 10: 0) Rotary SW Description Remarks REF AD x 1 Refrigerant circuit address Switch 1 REF AD x 10 Refrigerant circuit address Switch 2 Refrigerant circuit address (the first digit) Refrigerant circuit address (the second digit) zrc AD setting Remote controller address switch When the Outdoor air unit is wired by remote controller group, to identity the Outdoor air unit in the remote controller group, the number (remote controller address) in the remote controller group is set. The remote controller group can not be constructed, when the Outdoor air unit and Indoor unit is mixed. i) 3 wire type Only for manual address setting Set the remote controller address in the 0.1.2,~,15 order (Blank is not allowed) REMOTE CONTROLLER ADDRESS SWITCH (Factory setting : 0) Rotary SW Description Remarks RC AD Remote controller address Remote controller address ii) 2 wire type It can choose either automatic address setting or manual address setting. When setting the automatic address. Set the remote controller address in the "0" only. (Factory setting is "0") When setting the manual address. Set the remote controller address in the 1.2,~,15 REMOTE CONTROLLER ADDRESS SWITCH (Factory setting : 0) Rotary SW Description Remarks RC AD Remote controller address Remote controller address Note: When setting the manual address, can not be set the "0". - (A-50) -

54 SETTING BY REMOTE CONTROLLER FUNCTION DETAILS Function Filter indicator interval Filter indicator action Function number Static pressure 26 *1 Auto restart Cool Air Prevention External control Error report target Setting number Default Details 00 Standard Adjust the filter cleaning interval notification. If the notification is too 01 Longer early, change to setting 01. If the notification is too late, change to setting Shorter 00 Enable 01 Disable Enable or disable the filter Display only on indicator. Setting 02 is for use 02 central remote with a central remote control. control 05 SP mode SP mode SP mode SP mode SP mode SP mode SP mode SP mode SP mode SP mode SP mode SP mode SP mode SP mode SP mode SP mode SP mode SP mode Normal SP 00 Enable 01 Disable 00 Prohibited 01 Follow the setting on the remote controller 00 Start/Stop 01 Emergency stop 02 Forced stop 00 All 01 Display only on central remote control Model name ARXH054GTAH ARXH072GTAH ARXH096GTAH Range of static pressure SP mode 05 to 19 (50 to 185 Pa) SP mode 05 to 20 (50 to 200 Pa) SP mode 05 to 22 (50 to 220 Pa) Normal static pressure 185Pa 200Pa 200Pa Enable or disable automatic system restart after a power outage. Setting change prohibited. Allow an external controller to start or stop the system, or to perform an emergency stop, or to perform a forced stop. * If an emergency stop is performed from an external controller, same refrigerant system will be disabled. * If forced stop is set,indoor unit stops by the input to the external input terminals,and Start/Stop by a remote controller is restricted. Change the target for reporting errors. Errors can either be reported in all locations, or only on the wired remote. Humidifier control mode 00 Select control conditions of external output. 01 mode 01 "Mode 00" is output when heating thermostat is ON, "Mode 01" is output in heating operation, "Mode 02" is output in heating operation 02 mode 02 and in fan operation. - (A-51) -

55 1111 EXTERNAL INPUT & OUTPUT External input External output Input select Connector External connect kit (Optional parts) Control input - Apply voltage CNA01 UTY-XWZXZB Dry contact CNA02 UTY-XWZXZD Forced thermostat off - Apply voltage CNA03 UTY-XWZXZ7 Dry contact CNA04 UTY-XWZXZE Prohibited - - CNA06 or CNA07 - Operation status - Error status Indoor unit status Auxiliary heater output Humidifier output - CNB01 UTY-XWZXZC EXTERNAL INPUT Indoor unit can be Operation/Stop or Emergency stop or Forced stop by using indoor unit PCB CNA01 or CNA02. "Start/Stop" mode or "Emergency stop" mode or "Forced stop" mode can be selected with function setting of indoor unit. Indoor unit can be Forced thermostat off by using indoor unit PCB CNA03 or CNA04. A twisted pair cable (22AWG) shoud be used. Maximum length of cable is 150m. Use an external input and output cable with appropriate external dimension, depending on the number of cables to be installed. The wire connection should be separate from the power cable line. INPUT SELECT Use either one of these types of terminal according to the application. (Both types of terminals cannot be used simultaneously.) zapply voltage terminal ([CNA01], [CNA03]) When a power supply must be provided at the input device you want to connect, use the Apply voltage terminal ([CNA01], [CNA03]) Input device 1 Load resistance *a DC power supply 12-24V - + * P.C.B CNA01 *b Input device 2 Load resistance *a Input device 3 Load resistance *a 1 2 CNA03 connected unit *9: Make the power supply DC12 to 24V. Select a power supply with an ample surplus for the connected load. Do not impress a voltage exceeding 24V across pins 1-2, and 1-3. *a: The allowable current is DC 5mA to 10mA. (Recommended: DC5mA) Provide a load resistance such that the current becomes DC10mA or less. Select very low current use contacts (usable at DC12V, DC1mA or less). *b: The polarity is [+] for pin 1 and [-] for pin 2 and 3. Connect correctly. - (A-52) -

56 When connected to Apply voltage terminals of multiple indoor units with a connected unit, be sure to make a branch outside the indoor unit using a pull box, etc. as shown on below example. DC power supply 12-24V P.C.B Input device 1 Load resistance CNA01 Indoor unit Input device 2 Load resistance P.C.B CNA01 Indoor unit connected unit P.C.B CNA01 Indoor unit - (A-53) -

57 zdry contact terminal ([CNA02], [CNA04]) When a power supply is unnecessary at the input device you want to connect, use the Dry contact terminal ([CNA02], [CNA04]). P.C.B 1 *c Ch 1 *c Ch 2 GND 2 3 *d CNA02 *c Ch CNA04 connected unit *c: Select very low current use contacts (usable at DC12V, DC1mA or less). *d: The wiring is different from Apply voltage terminals. Be sufficiently careful when wiring. When connected to Dry contact terminals of multiple indoor units with a connected unit, insulate each indoor unit with relay, etc. as shown on below example. K1 K4 P.C.B CNA02 Indoor unit Power supply for relay K2 K5 P.C.B CNA02 Indoor unit Input device 1 K3 K6 P.C.B CNA02 Indoor unit Input device 2 K1 - K6 : Relay (Device for DC Current) NOTE : When connected to multiple indoor units directly, it will cause breakdown. - (A-54) -

58 INPUT SIGNAL TYPE The input signal type can be selected. It is switched by Dip-Sw on the indoor unit PCB. (u...factory setting) Dip-sw [Set 2-2] Input signal type u OFF Edge Pulse ON Pulse Note: input signal type of Ch3 (Forced thermostat off) is only "Edge". CONTROL INPUT FUNCTION zwhen function setting is "Operation/Stop" mode In the case of "Edge" input Connector Input signal Command Ch1 of OFF ON Operation CNA01 or CNA02 ON OFF Stop Edge Ch1 input of CNA01 or CNA02 Indoor unit On Off Operation Stop Remote Controller On In the case of "Pulse" input Connector Input signal Command Ch1 OFF ON Operation CNA01 or CNA02 Ch2 OFF ON Stop The width of pulse must be longer than 200msec. CNA01 or CNA02 Ch1 input Ch2 input On Off On Off Indoor unit Operation Stop Remote Controller On NOTE : The last command has priority. The indoor units within the same remote controller group operates in the same mode. - (A-55) -

59 zwhen function setting is "Emergency stop" mode In the case of "Edge" input Connector Input signal Command Ch1 of OFF ON Emergency stop CNA01 or CNA02 ON OFF Normal Ch1 input of CNA01 or CNA02 On Off Emergency stop Command Normal Indoor unit Operation Stop Remote Controller On On On In the case of "Pulse" input Connector Input signal Command Ch1 OFF ON Emergency stop CNA01 or CNA02 Ch2 OFF ON Normal The width of pulse must be longer than 200msec. CNA01 or CNA02 Ch1 input Ch2 input On Off On Off Emergency stop Command Normal Operation Indoor unit Stop Remote Controller On On On NOTE : All indoor units of same refrigerant system stops when Emergency stop operates. - (A-56) -

60 zwhen function setting is "Forced stop" mode In the case of "Edge" input Connector Input signal Command Ch1 of OFF ON Forced stop CNA01 or CNA02 Ch1 input of On CNA01 or Off CNA02 Forced stop Command Normal ON OFF Normal Indoor unit Operation Stop Remote Controller On On On In the case of "Pulse" input Connector Input signal Command Ch1 OFF ON Forced stop CNA01 or CNA02 Ch2 OFF ON Normal The width of pulse must be longer than 200msec. CNA01 or CNA02 Ch1 input Ch2 input On Off On Off Forced stop Command Normal Operation Indoor unit Stop Remote Controller On On On NOTE : When the forced stop is triggered, indoor unit stops and Operation/Stop operation by a remote controller is restricted. - (A-57) -

61 Considerations when setting forced stop CAUTION When forced stop function is used with forming a remote controller group, connect the same equipment to each indoor unit within the group. Example 1 : OK DC power supply 12-24V Remote controller group P.C.B Input device 1 Load resistance CNA 01 Wired R.C. or Simple R.C. Input device 2 Load resistance P.C.B CNA 01 connected unit P.C.B CNA 01 Example 2 : Prohibited DC power supply 12-24V Remote controller group P.C.B Input device 1 Load resistance CNA 01 Wired R.C. or Simple R.C. Input device 2 Load resistance P.C.B CNA 01 connected unit P.C.B CNA 01 - (A-58) -

62 FORCED THERMOSTAT OFF FUNCTION "Edge" input only Connector Input signal Command Ch3 of OFF ON Thermostat off CNA03 or CNA04 Example of cooling mode ON OFF Normal Ch3 input of CNA03 or CNA04 Thermostat On Off On Off Outlet air temp. Set temp. NOTE : Indoor unit may not do thermostat off promptly even if receive signal by operating conditions of other indoor unit of same refrigerant system. - (A-59) -

63 EXTERNAL OUTPUT A twisted pair cable (22AWG) shoud be used. Maximum length of cable is 25 m. Use an external input and output cable with appropriate external dimension, depending on the number of cables to be installed. Output voltage: Hi DC12 V ± 2 V, Lo 0 V. Permissible current: 50 ma Connector Output voltage Status External output1 0 V Stop Pins 1-2 DC 12 V Operation External output2 0 V Normal Pins 1-3 DC 12 V Error CNB01 External output3 0 V Indoor unit fan stop Pins 1-4 DC 12 V Indoor unit fan operation External output4 0 V Auxiliary heater OFF Pins 1-5 DC 12 V Auxiliary heater ON External output5 0 V Humidifier OFF Pins 1-6 DC 12 V Humidifier ON OUTPUT SELECT zwhen indicator etc. are connected directly P.C.B Operation indicator Error indicatior Indoor unit Fan status indicator CNB connected unit zwhen connecting with unit equipped with a power supply Connected device 1 Connected device 2 Connected device P.C.B CNB Heater Humidifier connected unit Relay - (A-60) -

64 OPERATION STATUS (External output1) The output for CNB01 (1-2) is ON when the indoor Indoor unit unit is operating. Operation Stop The output is off when the unit is stopped. CNB01(1-2) Output 12V 0V ERROR STATUS (External output2) The output for CNB01 (1-3) is ON when an error is generated for the indoor unit. Indoor unit CNB01(1-3) Output Error Normal 12V 0V INDOOR UNIT STATUS (External output3) The output for CNB01 (1-4) is ON when the indoor Indoor unit unit fan is operating. The output is off when the fan is stopped or during cold air prevention. The output for CNB01 (1-4) is OFF during thermostat OFF when DRY mode operation. CNB01(1-4) Output Fan run Fan stop 12V 0V Ex) Used for inter lock energize for exhaust fan. AUXILIARY HEATER OUTPUT (External output4) The output for CNB01 (1-5) is output when the fan is rotating during the Outdoor Air Operation Heating Unit is in heating operation. operation To cool the heater when the heating operation is stopped, set the SET2-3 Fan Delay Switch is ON. This is the output control of assuming the auxiliary heater used when performing heating operation in low outdoortemperature environment. Indoor unit fan CNB01 (1-5) output Stop ON OFF 12V 0V 1min CAUTION Please install auxiliary heater between the indoor unit and the inlet side. Please be sure to use delay control of a fan. Please design and install auxiliary properly considering protection by auxiliary itself. Auxiliary Heater If auxiliary does not design and install properly, it may cause fire by auxiliary's heat. In case of auxiliary does not design and install properly, our company cannot take responsibility. SA Indoor unit OA - (A-61) -