Rheem RHMV3021SNACJA Design & Technical Manual
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Rheem RHMV3021SNACJA Design & Technical Manual

Rheem RHMV3021SNACJA Design & Technical Manual

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AIR CONDITIONER
Duct type
DESIGN & TECHNICAL MANUAL
INDOOR
OUTDOOR
RHMV2421MNACJA
RHMV3021SNACJA
RHMV3621MNACJA
RHMV4821SNACJA
RP1724HJVXA
RP1730HJVXA
REFRIGERANT
INVERTER
RP1736HJVXA
RP1748HJVXA
R410A
DR_AR048EM_05
2021.01.28

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Summary of Contents for Rheem RHMV3021SNACJA

  • Page 1 R410A AIR CONDITIONER REFRIGERANT INVERTER Duct type DESIGN & TECHNICAL MANUAL INDOOR RHMV2421MNACJA RHMV3021SNACJA RHMV3621MNACJA RHMV4821SNACJA OUTDOOR RP1724HJVXA RP1736HJVXA RP1730HJVXA RP1748HJVXA DR_AR048EM_05 2021.01.28...
  • Page 2 Notices: • Product specifications and design are subject to change without notice for future improvement. • For further details, please check with our authorized dealer.

  • Page 3: Table Of Contents

    CONTENTS Part 1. INDOOR UNIT................1 1. Specifications....................2 2. Dimensions....................4 2-1. Models: RHMV2421MNACJA, RHMV3021SNACJA, RHMV3621MNACJA, and RHMV4821SNACJA......................4 2-2. Installation space requirement ..................5 3. Wiring diagram ....................7 3-1. Models: RHMV2421MNACJA, RHMV3021SNACJA, RHMV3621MNACJA, and RHMV4821SNACJA......................7 4. Capacity table....................8 4-1. Cooling capacity.......................8 4-2. Heating capacity ......................11 5.
  • Page 4 CONTENTS (continued) Part 2. OUTDOOR UNIT..............65 1. Specifications....................66 2. Dimensions....................68 2-1. Models: RP1724HJVXA and RP1730HJVXA ..............68 2-2. Models: RP1736HJVXA and RP1748HJVXA ..............69 3. Installation space ..................70 3-1. Models: RP1724HJVXA and RP1730HJVXA ..............70 3-2. Models: RP1736HJVXA and RP1748HJVXA ..............73 4. Refrigerant circuit ..................77 4-1.

  • Page 5: Part 1. Indoor Unit

    Part 1. INDOOR UNIT DUCT TYPE: RHMV2421MNACJA RHMV3021SNACJA RHMV3621MNACJA RHMV4821SNACJA...

  • Page 6: Specifications

    1. Specifications Duct Type Inverter heat pump Model name RHMV2421MNACJA RHMV3021SNACJA RHMV3621MNACJA RHMV4821SNACJA Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V 7.03 8.79 10.55 13.36 Rated Btu/h 24,000 30,000 36,000 45,600 95 °FDB...
  • Page 7 Duct Type Inverter heat pump Model name RHMV2421MNACJA RHMV3021SNACJA RHMV3621MNACJA RHMV4821SNACJA °F (°C) 64 to 90 (18 to 32) Cooling Operation range 80 or less 80 or less — — Heating °F (°C) 60 to 86 (16 to 30) NOTES: •...

  • Page 8: Dimensions

    19-1/2 (495) 21 (533) 42-1/2 (1,080) RHMV3021SNACJA RHMV3621MNACJA 19-1/2 (495) 21 (533) 57 (1,448) RHMV4821SNACJA Return air opening Model Width Depth/Length RHMV2421MNACJA RHMV3021SNACJA 19-3/8 (492) 19-3/4 (502) RHMV3621MNACJA RHMV4821SNACJA - 4 - 2-1. Models: RHMV2421MNACJA, RHMV3021SNACJA, RHMV3621MNACJA, and 2. Dimensions RHMV4821SNACJA...

  • Page 9: Installation Space Requirement

    2-2. Installation space requirement Provide sufficient installation space for product safety. (Top side) Service access 4 (100) 24 (600) or more or more For installation method, the following 4 patterns • Pattern A: Vertical installation, air intake port at the bottom •...
  • Page 10 • Pattern C: Vertical installation, air intake port at the top Reversing the evaporator coil and reattaching the thermistor are required • Pattern D: Horizontal installation, air intake port at the left Reversing the evaporator coil and reattaching the thermistor are required - 6 - 2-2.

  • Page 11: Wiring Diagram

    3. Wiring diagram 3-1. Models: RHMV2421MNACJA, RHMV3021SNACJA, RHMV3621MNACJA, and RHMV4821SNACJA - 7 - 3-1. Models: RHMV2421MNACJA, RHMV3021SNACJA, RHMV3621MNACJA, and 3. Wiring diagram RHMV4821SNACJA...

  • Page 12: Capacity Table

    4. Capacity table Capacity tables show each of following values calculated based on the outdoor temperature and the indoor temperature, under given Airflow Rate (AFR): For cooling capacity: Total Capacity (TC), Sensible Heat Capacity (SHC), and Input Power (IP) For heating capacity: Total Capacity (TC) and Input Power (IP) 4-1.
  • Page 13 ¢ Model: RHMV3021SNACJA Indoor temperature °FDB °FWB °FDB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 6.78 6.78 3.78 7.07 7.07 3.97 7.56 7.56 4.07 8.06 8.06 4.28 9.43 9.43 4.30 10.12 10.12 4.34 13.61 13.61 2.96 13.96 13.96 3.15 14.82 14.82 3.27...
  • Page 14 ¢ Model: RHMV4821SNACJA 1,640 Indoor temperature °FDB °FWB °FDB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 33.48 30.60 2.58 39.83 33.85 2.64 45.19 37.02 2.77 50.60 40.61 2.97 55.54 44.28 3.20 60.88 48.60 3.53 34.47 31.83 3.13 42.89 38.15 3.18 49.17 41.94 3.29 54.70...

  • Page 15: Heating Capacity

    10.14 3.58 9.90 3.47 9.57 3.52 9.34 3.49 12.28 3.85 11.39 3.75 11.11 3.48 10.52 3.58 10.35 3.50 ¢ Model: RHMV3021SNACJA Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 22.58 3.23 22.11 3.24 21.70 3.24 21.70 3.48 21.62 3.52...
  • Page 16 ¢ Model: RHMV3621MNACJA 1,200 Indoor temperature °FDB °FDB °FWB kBtu/h kBtu/h kBtu/h kBtu/h kBtu/h 32.94 4.07 31.05 4.11 28.83 4.28 28.44 4.31 28.78 4.45 33.11 4.65 33.45 4.67 32.90 4.77 32.47 4.81 31.55 4.92 33.99 5.02 36.37 5.02 36.75 5.11 36.41 5.15 35.15...

  • Page 17: Fan Performance

    (2,000) Airflow (CFM [m3/h]) *: The air volume is automatically adjusted near the target air volume by the function of automatic air volume adjustment. (Within the SP range of 0.1—1.0 inWG) ¢ Model: RHMV3021SNACJA 1.4 (350) 1.2 (300) 1.0 (250) 0.8 (200)
  • Page 18 ¢ Model: RHMV3621MNACJA 1.4 (350) 1.2 (300) 1.0 (250) 0.8 (200) Air volume of the Fan performance curve of High-notch(The static 0.6 (150) Maximum static pressure pressure range of 0.1—1.0 inWG) * 0.4 (100) Fan performance curve of Air volume of the Quiet-notch Minimum static pressure (The static pressure range of 0.2 (50)

  • Page 19: Airflow

    5-2. Airflow ¢ Model: RHMV2421MNACJA  Cooling Fan speed Airflow 1,359 HIGH 1,138 1,002 QUIET  Heating Fan speed Airflow 1,359 HIGH 1,138 1,002 QUIET - 15 - 5-2. Airflow 5. Fan performance...
  • Page 20 ¢ Model: RHMV3021SNACJA  Cooling Fan speed Airflow 1,478 HIGH 1,240 1,002 QUIET  Heating Fan speed Airflow 1,478 HIGH 1,240 1,002 QUIET - 16 - 5-2. Airflow 5. Fan performance...
  • Page 21 ¢ Model: RHMV3621MNACJA  Cooling Fan speed Airflow 2,039 HIGH 1,200 1,257 1,002 QUIET  Heating Fan speed Airflow 2,039 HIGH 1,200 1,257 1,002 QUIET - 17 - 5-2. Airflow 5. Fan performance...
  • Page 22 ¢ Model: RHMV4821SNACJA  Cooling Fan speed Airflow 2,786 HIGH 1,640 1,733 1,020 1,393 1,002 QUIET  Heating Fan speed Airflow 2,786 HIGH 1,640 1,733 1,020 1,393 1,002 QUIET - 18 - 5-2. Airflow 5. Fan performance...

  • Page 23: Operation Noise (Sound Pressure)

    QUIET NC-15 NC-15 QUIET 1,000 2,000 4,000 8,000 1,000 2,000 4,000 8,000 Octave band center frequency, Hz Octave band center frequency, Hz ¢ Model: RHMV3021SNACJA  Cooling  Heating NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 HIGH NC-45 NC-45...
  • Page 24 ¢ Model: RHMV3621MNACJA  Cooling  Heating NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 HIGH HIGH NC-45 NC-45 NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 NC-25 NC-25 NC-20 NC-20 QUIET QUIET NC-15 NC-15 1,000 2,000 4,000 8,000 1,000 2,000 4,000 8,000 Octave band center frequency, Hz Octave band center frequency, Hz...

  • Page 25: External Input And Output

    7. External input and output Rotary switch CN47 CN65 Fig. External input and output PCB Terminal (External in) External out External in/out PCB (Connect with Wire kit) Remote sensor External Input connect kit External input External output Connector Input select signal (Optional parts)
  • Page 26 ¢ External input and output PCB The indoor unit Operation/Stop can be set by using the input terminal on the PCB.  Input select Use either one of these types of terminals according to the application. (Both types of terminals cannot be used simultaneously.) •...

  • Page 27: External Output

    7-2. External output Use an external output cable with appropriate external dimension, depending on the number of ca- bles to be installed. ¢ Indoor unit • A twisted pair cable (22AWG) should be used. Maximum length of cable is 82 ft (25 m). •...
  • Page 28 ¢ External input and output PCB • A twisted pair cable (22AWG) should be used. • Permissible voltage and current: DC 5 V to 30 V / 3 A, AC 30 V to 250 V / 3 A • For details, refer to Chapter 7-3. "Combination of external input and output"...

  • Page 29: Combination Of External Input And Output

    7-3. Combination of external input and output By combining the function setting of the indoor unit and rotary switch setting of the External input and output PCB, you can select various combinations of functions. Combination examples of external input and output are as follows: External input External input Function...
  • Page 30 External output External input Function and output Indoor unit Mode External input and output PCB setting PCB (Rotary Output CN47 Output 1 Output 2 Output 3 Indoor unit fan 60-00 Operation/Stop Operation/Stop Error status operation status Indoor unit fan External heater 60-00 Operation/Stop Error status...
  • Page 31 ¢ Input signal type • Indoor unit Input signal type is only "Edge". Edge • External input and output PCB The input signal type can be selected. Signal type (edge or pulse) can be switched by the DIP switch 2 (SW2) on the External input and output PCB.

  • Page 32: Details Of Function

    7-4. Details of function ¢ Control input function  When function setting is "Operation/Stop" mode 1 • In the case of "Edge" input Rotary SW of Function External input and External input Input signal Command setting / output PCB Off → On Operation Input of indoor unit Terminal...
  • Page 33  When function setting is "Forced stop" mode • In the case of "Edge" input Rotary SW of Function External input and External input Input signal Command setting / output PCB Off → On Forced stop Input of indoor unit Terminal On →...
  • Page 34  When function setting is "Operation/Stop" mode 2 • In the case of "Edge" input Rotary SW of Function External input and External input Input signal Command setting / output PCB Off → On Operation Input of indoor unit Terminal Stop (R.C.
  • Page 35 ¢ Forced thermostat off function Function Rotary SW of External External input Input signal Command setting / input and output PCB 60-00 / 2 60-02 / 4 60-05 / 7 Off → On Thermostat off 60-06 / 8 External input and output Input 1 60-08 / A 60-09 / B...
  • Page 36 ¢ Error status Function Rotary SW of External External output Output signal Command setting / input and output PCB Low → High Error 60-09 / B Output of indoor unit CN47 High → Low Normal 60-00 / 2 Off → On Error 60-01 / 3 60-02 / 4...
  • Page 37 ¢ Indoor unit fan operation status Function Rotary SW of External External output Output signal Command setting / input and output PCB Low → High Fan run 60-10 / C Output of indoor unit CN47 High → Low Fan stop 60-00 / 2 Off →...
  • Page 38 ¢ External heater output Function setting Indoor unit Wired R. C. Control Primary heater Auxiliary heater Control switching external heaters Sensor activation* No. 61 Auxiliary heater Heat pump 61-00 — External device* control 1 Auxiliary heater Heat pump External device 61-01 —...
  • Page 39  Installation configuration of individual connection External heating device is installed individually. (No use of indoor unit fan) On/Off Example of heating device: - Floor heating device WARNING • DIP Switch 101-3 must be in the ON position when ducted electric heat application is be- ing used.
  • Page 40  Auxiliary equipment control by room temperature Auxiliary equipment control is switchable by room temperature. Auxiliary equipment switching is per- formed for each room temperature divided to following 3 zones. Zone A Ts +0.9°F (0.5 °C) Ts: Setting temperature Ts -0.9°F (0.5 °C) Tr: Room temperature Zone B Zone C...
  • Page 41  Auxiliary heater control 1 Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. • Other than heating mode Heater off • Error occurred •...
  • Page 42  Heat pump prohibition control Perform heating by external heater only. Indoor unit is continuous thermostat off. Operation Condition Heater is on as shown in following diagram of heating Heater on temperature. DIP-SW101-3 • Heater is off as shown in following diagram of heating temperature.
  • Page 43  Auxiliary heater control by outdoor temperature 1 This control selects heat pump or external heater according to the outdoor temperature. When out- door temperature is high, the heating is performed by using heat pump only. Operation Condition Heater is on as shown in following diagram of heating Heater on temperature.
  • Page 44 • Operation status 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Heat pump Heat pump Combination zone prohibition only zone Outdoor temperature zone* zone Comp. On/Off 12 V Heater DIP-SW101-3: On DIP-SW101-3: Off *: The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
  • Page 45  Auxiliary heater control by outdoor temperature 2 This control selects heat pump or external heater according to the outdoor temperature. Even when outdoor temperature is high, the heating is performed by using both of heat pump and external heater. Operation Condition Heater on...
  • Page 46 • Operation status 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Heat pump Combination zone Outdoor temperature zone * prohibition zone Comp. On/Off 12 V Heater DIP-SW101-3 On DIP-SW101-3 Off * The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
  • Page 47  Auxiliary heater control by outdoor temperature 3 This control selects heat pump or external heater according to the outdoor temperature. Even when outdoor temperature is high, the heating is performed by using both of heat pump and external heater. Operation Condition Heater on...
  • Page 48 • Operation status Heat pump only zone 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C) -4°F (-20°C) Combination zone Outdoor temperature zone * Comp. On/Off 12 V Heater DIP-SW101-3 On DIP-SW101-3 Off *: The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min. NOTE: In following operations, compressor will be on in heat pump prohibition zone.
  • Page 49  Auxiliary heat pump control • External heater output Operation Condition Heater is on as shown in following diagram of heating Heater on temperature. DIP-SW101-3 • Heater is off as shown in following diagram of heating temperature. • Other than heating mode Indoor unit fan •...
  • Page 50  Auxiliary heat pump control by outdoor temperature 1 • External heater output Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. DIP-SW101-3 • Heater is off as shown in following diagram of heating temperature.
  • Page 51 • Outdoor temperature zone Outdoor temp. Combination zone     ( Heat pump + Heater) A + 3.6°F ( 2°C): -0.4°F (-18°C) *A: -4°F (-20°C)   Heater only zone   *: Adjustable by function setting 67 • Operation status 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting)
  • Page 52  Auxiliary heat pump control by outdoor temperature 2 • External heater output Operation Condition Heater is on as shown in following diagram of heating Heater on temperature. DIP-SW101-3 • Heater is off as shown in following diagram of heating temperature.
  • Page 53 • Outdoor temperature zone Outdoor temp. Heater only zone B + 3.6°F (2°C): 46.4°F (8°C) *B: 42.8°F (6°C) Combination zone (Heat pump + Heater) *: Adjustable by function setting 67 • Operation status Heat pump prohibition zone 46.4°F (8°C) 42.8°F (6°C) Outdoor temperature (Factory setting) -0.4°F (-18°C)
  • Page 54  Auxiliary heat pump control by outdoor temperature 3 • External heater output Operation Condition Heater is on as shown in following diagram of heating Heater on temperature. DIP-SW101-3 • Heater is off as shown in following diagram of heating temperature.
  • Page 55 • Outdoor temperature zone Outdoor temp. Heater only zone     B + 3.6°F (2°C): 46.4°F (8°C) B: 42.8°F (6°C)*   Combination zone   (Heat pump + Heater) A + 3.6°F (2°C): -0.4°F (-18°C) A: -4°F (-20°C)*   Heater only zone  ...
  • Page 56 ¢ Heating thermostat on for humidifier Indoor unit Function External output setting Situation Mode Rotary SW Heating Indoor unit fan Heating thermostat on operation thermostat on no. 60 status 60-05 CN47 Example of 60-06 Output3 individual Not used 60-07 Output2 connection 60-08 Output1...

  • Page 57: Function Settings

    NOTE: Incorrect settings can cause a product malfunction. 8-1. Function settings on indoor unit ¢ Models: RHMV2421MNACJA, RHMV3021SNACJA, RHMV3621MNACJA, and RHMV4821SNACJA By using some components on the PCB, you can change the function settings. Related components on the PCB and the applicable settings...

  • Page 58: Function Settings By Using Remote Controller

    8-2. Function settings by using remote controller Some function settings can be changed on the remote controller. After confirming the setting proce- dure and the content of each function setting, select appropriate functions for your installation envi- ronment. ¢ Setting procedure by using remote controller Remote controller is not attached for this product.
  • Page 59 2) Room temperature control for indoor unit sensor Depending on the installed environment, correction of the room temperature sensor may be re- quired. Select the appropriate control setting according to the installed environment. The temperature of the room temperature sensor is corrected as follows: Corrected temp.
  • Page 60 3) Room temperature control for wired remote controller sensor Depending on the installed environment, correction of the wire remote temperature sensor may be required. Select the appropriate control setting according to the installed environment. To change this setting, set Function 42 to Both “01”. Ensure that the Thermo Sensor icon is displayed on the remote controller screen.
  • Page 61 6) Cold air prevention This setting is to disable the cold air prevention function during heating operation. When disabled, the fan setting will always follow the setting on the remote controller. (Excluding defrost mode) Function number Setting value Setting description Factory setting Enable ♦...
  • Page 62 10) Switching functions for external output terminal Functions of the external output terminal can be switched. For details, refer to “External input and output”. Function number Setting value Setting description Factory setting Operation status ♦ 01—04 Cooling thermostat On Heating operation Operation/Stop 07—08 Cooling thermostat On...
  • Page 63 12) Operating temperature switching of external heaters Sets the temperature conditions when the external heater is ON. For details, refer to “External heater output” in Chapter 7-4. "Details of function" on page 28. Setting description Setting value of function 61: Function Setting Factory...
  • Page 64 14) Outdoor temperature zone boundary temperature B Setting required if changing of the outdoor temperature setting for heat pump only zone is required when auxiliary heater control by outdoor temperature 1 is performed on the indoor unit. For details, refer to “External heater output” in Chapter 7-4. "Details of function"...
  • Page 65 18) Fan delay time Sets the fan delay time when the heater is turned off. Function number Setting value Setting description Factory setting 1 minute ♦ 50 seconds 40 seconds 30 seconds 19) External heater use in defrosting Enables or disables external heater use in defrosting. NOTE: Inappropriate heater selection may cause cold air in defrosting.

  • Page 66: Accessories

    Cable tie (large) Installation manual Cable tie (medium) (indoor unit) Rail Cable tie (small) Duct flanges Drain hose insulation Coupler heat insulation Drain cap (large) Coupler heat insulation Screw (small) - 62 - 9-1. Models: RHMV2421MNACJA, RHMV3021SNACJA, RHMV3621MNACJA, and 9. Accessories RHMV4821SNACJA...

  • Page 67: Optional Parts

    10. Optional parts 10-1. Controllers Exterior Part name Model name Summary Easy finger touch operation with LCD Office Fri 10:00AM Mode Set Temp. Wired remote panel. Backlit LCD enables easy Cool 80°F Custom Auto Auto Heat 74°F RXRNRUZ* Cool 84°F Room Temp.

  • Page 68: 10-2.Others

    10-2. Others Exterior Part name Model name Summary Thermo-sensor for sensing the RXXSZX Remote sensor temperature of arbitrary place in the unit UXXSZX room. Use to connect with various peripheral External devices and air conditioner PCB. RXXWZXZG connect kit For control output port. Use to connect with external devices External input RXXCSX...

  • Page 69: Part 2. Outdoor Unit

    Part 2. OUTDOOR UNIT SINGLE TYPE: RP1724HJVXA RP1730HJVXA RP1736HJVXA RP1748HJVXA...

  • Page 70: Specifications

    1. Specifications Type Inverter heat pump Model name RP1724HJVXA RP1730HJVXA Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V Starting current 11.5 Cooling 2,119 (3,600) Airflow rate CFM (m Heating 2,119 (3,600) Type ×...
  • Page 71 Type Inverter heat pump Model name RP1736HJVXA RP1748HJVXA Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 187—253 V Starting current 20.1 Cooling 2,590 (4,400) Airflow rate CFM (m Heating 2,590 (4,400) Type × Q'ty Propeller ×...

  • Page 72: Dimensions

    2. Dimensions 2-1. Models: RP1724HJVXA and RP1730HJVXA Unit: in (mm) Top view 1-1/4 3(77) 35-7/16 (900) (12) 13 (330) (31) 15-3/4 (400) Front view Side view 25-5/8 (650) Airflow 5-3/4 (147) 6-3/4 (170) Bottom view - 68 - 2-1. Models: RP1724HJVXA and RP1730HJVXA 2.

  • Page 73: Models: Rp1736Hjvxa And Rp1748Hjvxa

    2-2. Models: RP1736HJVXA and RP1748HJVXA Unit: in (mm) 6-9/16 (166) 25-9/16 (650) 6-1/16 (154) 1-7/16 (36) 38-3/16 (970) 14-9/16 (370) 9/16 (14) 1-4/16 (32) Treminal blocks 3-Way valve (Liquid) 3-Way valve (Gas) Ø7/8 (22.2)(Cable port) Ø7/8 (22.2)(Cable port) Ø7/8 (22.2)(Cable port) Ø7/8 (22.2)(Cable port) Ø1-1/8 (27.8)(Cable port) Ø1-1/8 (27.8)(Cable port)

  • Page 74: Installation Space

    3. Installation space 3-1. Models: RP1724HJVXA and RP1730HJVXA ¢ Space requirement Provide sufficient installation space for product safety.  Single outdoor unit installation • When the upper space is open: Unit: in (mm) When there are obstacles at the rear only. When there are obstacles at the rear and sides.
  • Page 75  Multiple outdoor unit installation • When the upper space is open: Unit: in (mm) When there are obstacles at the rear only. When there are obstacles at the front only. 60 (1,500) or more 10 (250) 12 (300) or more or more When there are obstacles at the front and rear.
  • Page 76  Outdoor unit installation in multi-row Unit: in (mm) Single parallel unit arrangement Multiple parallel unit arrangement 6 (150) or more 20 (500) or more 79 (2,000) or more 119 (3,000) or more 24 (600) or more 24 (600) or more 60 (1,500) or more 40 (1,000) or more 6 (150)

  • Page 77: Models: Rp1736Hjvxa And Rp1748Hjvxa

    3-2. Models: RP1736HJVXA and RP1748HJVXA CAUTION • The installation space shown in the following examples is based on an ambient temperature un- der cooling operation of 95°FDB (35°CDB) at the air intake of the outdoor unit. Provide more space around the air intake than shown in the examples if the ambient tempera- ture exceeds 95°FDB (35°CDB) or if the thermal load of all of the outdoor units exceeds the ca- pacity.
  • Page 78 ¢ Space requirement Provide sufficient installation space for product safety.  Single outdoor unit installation • When the upper space is open: Unit: in (mm) When there are obstacles at the rear only. When there are obstacles at the rear and sides.
  • Page 79  Multiple outdoor unit installation NOTES: • Provide at least of space between the outdoor units if multiple units are installed. • When routing the piping from the side of an outdoor unit, provide space for the piping. • No more than 3 units must be installed side by side. When 3 units or more are arranged in a line, provide the space as shown in the following ex- ample when an obstruction is present also in the upward area.
  • Page 80  Outdoor unit installation in multi-row Unit: in (mm) Single parallel unit arrangement Multiple parallel unit arrangement 6 (150) or more 20 (500) or more 79 (2000) or more 119 (3000) or more 24 (600) or more 24 (600) or more 40 (1000) or more 60 (1500) or more NOTES:...

  • Page 81: Refrigerant Circuit

    4. Refrigerant circuit 4-1. Models: RP1724HJVXA and RP1730HJVXA Evaporator coil 3-Way (Indoor) valve Muffler 2-Way valve Pressure switch 4-Way valve Strainer Expansion valve Condenser coil Strainer Pressure (Outdoor) check valve : Cooling : Heating : Thermistor (Compressor temperature) : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Condenser coil Out temperature) : Thermistor (Room temperature)

  • Page 82: Models: Rp1736Hjvxa And Rp1748Hjvxa

    4-2. Models: RP1736HJVXA and RP1748HJVXA Indoor unit Outdoor unit Condenser coil Evaporator coil Muffler Fusible plug Belt heater : Check valve : Thermistor (Shell) : Strainer : Thermistor (Discharge temperature thermistor) : Compressor (Inverter type) : Thermistor (Outdoor temperature) : Accumulator : Thermistor (Condenser coil Out temperature) : High pressure sensor : Thermistor (Room temperature)

  • Page 83: Wiring Diagrams

    5. Wiring diagrams 5-1. Models: RP1724HJVXA and RP1730HJVXA - 79 - 5-1. Models: RP1724HJVXA and RP1730HJVXA 5. Wiring diagrams...

  • Page 84: Models: Rp1736Hjvxa And Rp1748Hjvxa

    5-2. Models: RP1736HJVXA and RP1748HJVXA - 80 - 5-2. Models: RP1736HJVXA and RP1748HJVXA 5. Wiring diagrams...

  • Page 85: Capacity Compensation Rate For Pipe Length And Height Difference

    6. Capacity compensation rate for pipe length and height difference Height difference H Indoor unit is higher than outdoor unit Indoor unit is lower than outdoor unit Outdoor unit Indoor unit Outdoor unit Indoor unit Connection pipe Connection pipe 6-1. Models: RP1724HJVXA and RP1730HJVXA NOTE: Values mentioned in the table are calculated based on the maximum capacity.

  • Page 86: Models: Rp1736Hjvxa And Rp1748Hjvxa

    6-2. Models: RP1736HJVXA and RP1748HJVXA NOTE: Values mentioned in the table are calculated based on the maximum capacity. Pipe length COOLING — — — — 0.885 0.842 0.800 0.754 0.711 — — — 0.937 0.895 0.852 0.810 0.770 0.728 Indoor unit is higher —...

  • Page 87: Additional Charge Calculation

    7. Additional charge calculation 7-1. Models: RP1724HJVXA and RP1730HJVXA Refrigerant type R410A lb oz 4 lb 10 oz Refrigerant amount 2,100 ¢ Refrigerant charge 66 or less 164 (Max.) Total pipe length 0.43 oz/ft 20 or less 50 (Max.) 14.1 28.2 42.3 (40 g/m)

  • Page 88: Airflow

    8. Airflow 8-1. Model: RP1724HJVXA  Cooling 3,600 1,000 2,119  Heating 3,600 1,000 2,119 8-2. Model: RP1730HJVXA  Cooling 3,600 1,000 2,119  Heating 3,600 1,000 2,119 8-3. Model: RP1736HJVXA  Cooling 4,400 1,222 2,590  Heating 4,400 1,222 2,590 - 84 - 8-1.

  • Page 89: Model: Rp1748Hjvxa

    8-4. Model: RP1748HJVXA  Cooling 4,400 1,222 2,590  Heating 4,400 1,222 2,590 - 85 - 8-4. Model: RP1748HJVXA 8. Airflow...

  • Page 90: Operation Noise (Sound Pressure)

    9. Operation noise (sound pressure) 9-1. Noise level curve ¢ Model: RP1724HJVXA  Cooling  Heating NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 NC-45 NC-45 NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 NC-25 NC-25 NC-20 NC-20 NC-15 NC-15 1,000 2,000 4,000 8,000 1,000...
  • Page 91 ¢ Model: RP1736HJVXA  Cooling  Heating NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 NC-45 NC-45 NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 NC-25 NC-25 NC-20 NC-20 NC-15 NC-15 1,000 2,000 4,000 8,000 1,000 2,000 4,000 8,000 Octave band center frequency, Hz Octave band center frequency, Hz ¢...

  • Page 92: Sound Level Check Point

    9-2. Sound level check point Rear Microphone Microphone Airflow 40 in (1 m) Side view Rear view NOTE: Detailed shape of the actual outdoor unit might be slightly different from the one illustrated above. - 88 - 9-2. Sound level check point 9.

  • Page 93: Electrical Characteristics

    10. Electrical characteristics Model name Item Unit RP1724HJVXA RP1730HJVXA Voltage 208/230 V~ Power supply Frequency MCA *1 20.8 Starting current 11.5 MAX. CKT. BKR * Power cable 16—14 Wiring spec. Size 20—16 Connection Limited wiring cable * ft (m) 167 (51) length Model name Item...

  • Page 94: Safety Devices

    11. Safety devices Model Type of protection Protection form RP1724HJVXA RP1730HJVXA Current fuse (Filter PCB) 250 V, 5 A × 2 Circuit protection Current fuse (Main PCB) 250 V, 3.15 A × 2 °F (150 °C) Activate Fan motor stop Fan motor protection Thermal protection °F (120 °C)

  • Page 95: Function Settings

    12. Function settings 12-1. Setting methods WARNING Never touch electrical components such as the terminal blocks or reactor except the switch on the display board. It may cause a serious accident such as electric shock. CAUTION • Once refrigerant charging is completed, be sure to open the valve prior to performing the local settings.
  • Page 96 ¢ Setting method 1. Be sure to disconnect the power supply or turn off the breaker. 2. Change the DIP switch setting according to the required setting. • Various settings can be adjusted by changing DIP switches and push switches on the board of the outdoor unit.
  • Page 97 ¢ Description of display LED display lamp Function or operation method • Turns on when the power supply is ON (Including when error occurs). (1) POWER/MODE Green • Indicate the MODE by the number of flashes when the installation function is active. (2) ERROR Flashes at high-speed when there is an error.

  • Page 98: 12-2.Outdoor Unit Low Noise Operation Function (Option)

    12-2. Outdoor unit low noise operation function (option) Change the outdoor unit low noise operation by using this setting. Optional Central remote con- troller is necessary to use this function. SET2-1 Setting Factory setting Lower ♦ CAUTION • When the low noise operation function is working, cooling and heating capacity will de- crease.

  • Page 99: Test

    13. Test 13-1. Test run CAUTION Always connect the power supply 12 hours prior to the start of the operation in order to protect the compressor. 1. Indoor unit a. Is the drain normal? b. Is there any abnormal noise and vibration during operation? 2.
  • Page 100 4. Confirm operating status. 5. Press "TEST RUN" switch for more than 3 seconds. POWER ERROR MONITOR MODE POWER/MODE LED will turn on, and test run stops. - 96 - 13-1. Test run 13. Test...

  • Page 101: 13-2.Error Code

    13-2. Error code If an error occurs, the LED will light up to display the error location and the error code. ¢ In the event of an error The error LED blink quickly. POWER ERROR MONITOR MODE blink (High-speed) ¢ Error location display LEDs A to F of MONITOR light up and display the error location.
  • Page 102 ¢ Error code display While the error is occurring, briefly press SW1. The error code is displayed. Example: Coil error (Error cord = 9A.1) POWER ERROR MONITOR MODE Blink [A(10)] (High-speed) (9-blink) Display mode LED on: LED off: Blink: (0.5s Light on / 0.5s Light off) Number of blinking: ( )
  • Page 103 Error code Error type 11.3 Serial communication error 11.4 Serial communication error during operation 16.5 Communication error between controller and outdoor unit 22.1 Indoor unit capacity error 5U.1 Indoor unit error 62.1 Outdoor unit PCB Model information error 62.3 EEPROM access error 62.8 EEPROM data corruption error 63.1...

  • Page 104: 13-3.Pump Down

    13-3. Pump down WARNING During the pump down operation, make sure that compressor is off before you remove the refriger- ant piping. Do not remove the connection pipe while the compressor is in operation with valve open. This may cause abnormal pressure in the refrigeration cycle that leads to breakage and even injury.
  • Page 105 7. Disconnect the power supply or turn off the breaker. NOTE: If the pump down is not stopped by pressing the switch as in step 6, it will stop auto- matically after 15 minutes and the LED will light as follows. If the pump down is com- plete, disconnect the power supply or turn off the breaker.

  • Page 106: Accessories

    14. Accessories 14-1. Models: RP1724HJVXA and RP1730HJVXA Part name Exterior Q’ty Part name Exterior Q’ty Installation manual Drain cap Drain pipe 14-2. Models: RP1736HJVXA and RP1748HJVXA Part name Exterior Q’ty Part name Exterior Q’ty Installation manual Drain cap Drain pipe - 102 - 14-1.

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