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Rheem RHMV2421MNACJA, Design & Technical Manual, Page: 31 / 106

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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.

Edge

Pulse

The width of pulse must be 
longer than 200 msec.

- 27 -

7-3. Combination of external input and output

7. External input and output

DUCT TYPE

RHMV2421-4821*NACJ

A

DUCT TYPE

RHMV2421-4821*NACJ

A

Summary of Contents for RHMV2421MNACJA

Page 1: ...NER Duct type REFRIGERANT R410A INVERTER DESIGN TECHNICAL MANUAL INDOOR RHMV2421MNACJA RHMV3021SNACJA RHMV3621MNACJA RHMV4821SNACJA OUTDOOR RP1724HJVXA RP1730HJVXA RP1736HJVXA RP1748HJVXA DR_AR048EM_0...

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: ...Fan performance 13 5 1 Fan performance curve 13 5 2 Airflow 15 6 Operation noise sound pressure 19 6 1 Noise level curve 19 7 External input and output 21 7 1 External input 21 7 2 External output 23...

Page 4: ...P1724HJVXA and RP1730HJVXA 81 6 2 Models RP1736HJVXA and RP1748HJVXA 82 7 Additional charge calculation 83 7 1 Models RP1724HJVXA and RP1730HJVXA 83 7 2 Models RP1736HJVXA and RP1748HJVXA 83 8 Airflow...

Page 5: ...Part 1 INDOOR UNIT DUCT TYPE RHMV2421MNACJA RHMV3021SNACJA RHMV3621MNACJA RHMV4821SNACJA...

Page 6: ...mit Outdoor temp Min Max 0 48 3 20 0 42 3 24 0 59 4 28 0 59 4 30 Fan HIGH W 106 9 136 3 204 3 412 4 MED 67 4 96 3 63 4 118 2 LOW 50 6 57 7 42 1 73 1 QUIET 19 7 22 7 31 0 38 5 Current Cooling Rated A 8...

Page 7: ...length 24 ft 7 in 7 5 m Height difference 0 ft 0 m Between outdoor unit and indoor unit Standard static pressure 0 18 in WG 45 Pa 24 model 0 23 in WG 58 Pa 30 and 36 model 0 28 in WG 70 Pa 48 model P...

Page 8: ...xiliary drain connection Liquid pipe Model Dimension A Supply duct W Unit width H Unit height RHMV2421MNACJA RHMV3021SNACJA 19 1 2 495 21 533 42 1 2 1 080 RHMV3621MNACJA RHMV4821SNACJA 19 1 2 495 21 5...

Page 9: ...access 4 100 or more For installation method the following 4 patterns Pattern A Vertical installation air intake port at the bottom AIR AIR Pattern B Horizontal installation air intake port at the ri...

Page 10: ...aching the thermistor are required AIR AIR Pattern D Horizontal installation air intake port at the left Reversing the evaporator coil and reattaching the thermistor are required AIR AIR 6 2 2 Install...

Page 11: ...els RHMV2421MNACJA RHMV3021SNACJA RHMV3621MNACJA and RHMV4821SNACJA 7 3 1 Models RHMV2421MNACJA RHMV3021SNACJA RHMV3621MNACJA and RHMV4821SNACJA 3 Wiring diagram DUCT TYPE RHMV2421 4821 NACJ A DUCT TY...

Page 12: ...93 20 86 16 27 1 96 22 54 17 00 1 98 24 00 17 48 2 00 25 20 18 88 2 01 26 24 20 10 2 02 104 15 32 13 85 2 40 17 05 14 46 2 41 18 50 15 22 2 42 19 95 15 67 2 43 21 34 17 35 2 44 22 77 18 78 2 45 115 1...

Page 13: ...97 9 23 6 92 2 99 9 61 7 36 3 00 40 5 61 5 07 3 57 6 25 5 30 3 58 6 78 5 58 3 60 7 31 5 74 3 61 7 82 6 36 3 62 8 34 6 88 3 63 46 1 3 78 3 78 4 60 4 11 4 11 4 61 4 51 4 51 4 63 5 03 4 73 4 64 5 64 5 4...

Page 14: ...7 24 44 5 94 33 94 23 21 6 22 34 83 29 91 6 37 36 53 25 85 6 53 45 46 42 10 6 45 AFR m3 h 2 786 Indoor temperature CDB 17 8 21 1 23 9 26 7 29 4 32 2 CWB 12 2 15 6 17 2 19 4 21 7 22 8 Outdoor temperatu...

Page 15: ...8 9 90 3 47 9 57 3 52 9 34 3 49 15 10 12 28 3 85 11 39 3 75 11 11 3 48 10 52 3 58 10 35 3 50 Model RHMV3021SNACJA AFR CFM 870 Indoor temperature FDB 60 65 70 72 75 Outdoor temperature FDB FWB TC IP TC...

Page 16: ...96 17 94 4 88 17 02 5 13 17 73 5 27 20 11 5 64 Model RHMV4821SNACJA AFR CFM 1 640 Indoor temperature FDB 60 65 70 72 75 Outdoor temperature FDB FWB TC IP TC IP TC IP TC IP TC IP kBtu h kW kBtu h kW kB...

Page 17: ...automatic air volume adjustment Within the SP range of 0 1 1 0 inWG Model RHMV3021SNACJA 0 0 2 50 0 4 100 0 6 150 0 8 200 1 0 250 1 2 300 1 4 350 0 500 1 000 1 478 1 500 2 000 294 589 870 883 1 177 Ai...

Page 18: ...ent Within the SP range of 0 1 1 0 inWG Model RHMV4821SNACJA Airflow CFM m3 h 0 0 2 50 0 4 100 0 6 150 0 8 200 1 0 250 1 2 300 1 4 350 External static pressure inWG Pa 0 1 25 0 1 177 1 472 294 589 883...

Page 19: ...FM 670 LOW m3 h 1 002 l s 278 CFM 590 QUIET m3 h 527 l s 146 CFM 310 Heating Fan speed Airflow HIGH m3 h 1 359 l s 378 CFM 800 MED m3 h 1 138 l s 316 CFM 670 LOW m3 h 1 002 l s 278 CFM 590 QUIET m3 h...

Page 20: ...0 LOW m3 h 1 002 l s 278 CFM 590 QUIET m3 h 527 l s 146 CFM 310 Heating Fan speed Airflow HIGH m3 h 1 478 l s 411 CFM 870 MED m3 h 1 240 l s 345 CFM 730 LOW m3 h 1 002 l s 278 CFM 590 QUIET m3 h 527 l...

Page 21: ...0 LOW m3 h 1 002 l s 278 CFM 590 QUIET m3 h 833 l s 231 CFM 490 Heating Fan speed Airflow HIGH m3 h 2 039 l s 566 CFM 1 200 MED m3 h 1 257 l s 349 CFM 740 LOW m3 h 1 002 l s 278 CFM 590 QUIET m3 h 833...

Page 22: ...LOW m3 h 1 393 l s 387 CFM 820 QUIET m3 h 1 002 l s 278 CFM 590 Heating Fan speed Airflow HIGH m3 h 2 786 l s 774 CFM 1 640 MED m3 h 1 733 l s 481 CFM 1 020 LOW m3 h 1 393 l s 387 CFM 820 QUIET m3 h 1...

Page 23: ...Hz 80 70 60 50 40 30 20 10 0 63 125 250 500 1 000 2 000 4 000 8 000 Model RHMV3021SNACJA Cooling NC 65 NC 60 NC 55 NC 50 NC 45 NC 40 NC 35 NC 30 NC 25 NC 20 NC 15 Octave band sound pressure level dB 0...

Page 24: ...0 63 125 250 500 1 000 2 000 4 000 8 000 Model RHMV4821SNACJA Cooling HIGH QUIET NC 65 NC 60 NC 55 NC 50 NC 45 NC 40 NC 35 NC 30 NC 25 NC 20 NC 15 Octave band sound pressure level dB 0 dB 0 0002 bar O...

Page 25: ...Input 1 Input 2 Dry contact Apply voltage Edge Pulse Forced thermostat off Input 1 Edge Operation status Output 1 Output 2 Output 3 Error status Indoor unit fan operation status External heater output...

Page 26: ...ON VOL side 1 2 C Input 1 Input 2 PCB Connected unit 1 The switches can be used on the following condition DC 12 V to 24 V 1 mA to 15 mA Apply voltage In case of external power supply set the slide sw...

Page 27: ...25 When indicator etc are connected directly Example Function setting 60 is set to 00 1 2 CN47 LED PCB Resistor Connected unit When connecting with a device equipped with a power supply Example Funct...

Page 28: ...to Chapter 7 3 Combination of external input and output on page 25 1 2 3 4 5 6 Power supply Power supply Power supply PCB Connected device 1 Operation status Connected device 2 Error status Indoor uni...

Page 29: ...46 00 or Forced stop Function setting 46 02 Operation Stop Not available Edge Operation Stop Pulse 0 2 60 00 2 Forced Thermostat OFF Not available Edge 1 60 01 3 Mechanical cooling Off 2 60 02 4 Forc...

Page 30: ...ternal heater output 6 60 06 8 Operation Stop Error status Indoor unit fan operation status Heating thermostat On 7 60 07 9 Cooling thermostat On Error status Heating thermostat On External heater out...

Page 31: ...e can be selected Signal type edge or pulse can be switched by the DIP switch 2 SW2 on the External input and output PCB Edge Pulse The width of pulse must be longer than 200 msec 27 7 3 Combination o...

Page 32: ...Remote controller On Off Indoor unit On Input In the case of Pulse input Function setting Rotary SW of External input and output PCB External input Input signal Command 46 00 60 00 1 External input a...

Page 33: ...y SW of External input and output PCB External input Input signal Command 46 02 60 00 1 External input and output PCB Input 1 Pulse Forced stop Input 2 Pulse Normal On Off Operation Stop Remote contro...

Page 34: ...er On On Off In the case of Pulse input Function setting Rotary SW of External input and output PCB External input Input signal Command 46 03 60 00 1 External input and output PCB Input 1 Pulse Operat...

Page 35: ...nput Control output function Function setting Rotary SW of External input and output PCB External output Output signal Command 60 00 1 2 60 06 8 Output of indoor unit CN47 Low High Operation High Low...

Page 36: ...60 06 8 60 07 9 External input and output PCB Output 1 Off On Error On Off Normal 60 00 1 Output 2 Off On Error 60 10 C On Off Normal 60 11 D Output 3 Off On Error On Off Normal The output is ON when...

Page 37: ...t and output PCB Output 2 Off On Fan run On Off Fan stop 60 00 1 Output 3 Off On Fan run On Off Fan stop Output signal Condition On The indoor unit fan is operating Low High Off The fan is stopped or...

Page 38: ...device Heat pump 61 06 On Enabled Auxiliary heat pump control by outdoor temperature 1 External device Heat pump 61 07 On Enabled Auxiliary heat pump control by outdoor temperature 2 External device...

Page 39: ...shown in following diagram of heating temperature Other than heating mode Error occurred Forced thermostat off Fan stop protection Indoor unit fan setting for external heater Enabled DIP SW101 3 Off H...

Page 40: ...ecessary Off Off Off Off B Primary heater only When room temperature stays in zone B for a long time auxiliary equipment also operates On Off 1 C Auxiliary equipment also operates On On 2 On On 2 1 Fo...

Page 41: ...erature Tr increases above 69 8 F 21 C signal output is off and room temperature Tr decreases below 66 2 F 19 C signal output is on and room temperature Tr decreases below 50 F 10 C signal output is o...

Page 42: ...d thermostat off Indoor unit fan setting for external heater Disabled Temperature of heater on Thon Adjustable by function number 62 Operating temperature switching of external heaters All control tem...

Page 43: ...tting for external heater Disabled Temperature of heater on Thon Adjustable by function number 62 Operating temperature switching of external heaters All control temperatures will shift by adjusting T...

Page 44: ...perature zone transition from one to another will stay in that zone for minimum of 30 min 46 4 F 8 C 42 8 F 6 C 0 4 F 18 C 4 F 20 C On Off Fan DIP SW101 3 On DIP SW101 3 Off NOTE In following operatio...

Page 45: ...ed Forced thermostat off Indoor unit fan setting for external heater Disabled Temperature of heater on Thon Adjustable by function number 62 Operating temperature switching of external heaters All con...

Page 46: ...nsition from one to another will stay in that zone for minimum of 30 min 46 4 F 8 C 42 8 F 6 C 0 4 F 18 C 4 F 20 C On Off On Off Fan DIP SW101 3 On DIP SW101 3 Off NOTE In following operations compres...

Page 47: ...red Forced thermostat off Indoor unit fan setting for external heater Disabled Temperature of heater on Thon Adjustable by function number 62 Operating temperature switching of external heaters All co...

Page 48: ...p On Off Outdoor temperature Factory setting Outdoor temperature zone 46 4 F 8 C 42 8 F 6 C 0 4 F 18 C 4 F 20 C On Off On Off Fan DIP SW101 3 On DIP SW101 3 Off NOTE In following operations compressor...

Page 49: ...e of heater on Thon Set temperature Ts 0 9 F 0 5 C Temperature of heater off Set temperature Ts 0 9 F 0 5 C Tr Room temperature Ts Set temperature Thon Heater on temperature Off On Tr Ts Tr Ts Thon 0...

Page 50: ...d Temperature of heater on Thon Set temperature Ts 0 9 F 0 5 C Temperature of heater off Set temperature Ts 0 9 F 0 5 C Tr Room temperature Ts Set temperature Thon Heater on temperature Off On Tr Ts...

Page 51: ...ne Heat pump prohibition zone Combination zone The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min 46 4 F 8 C 42 8 F 6 C 0 4 F 18 C 4 F 20 C On Off...

Page 52: ...ed Temperature of heater on Thon Set temperature Ts 0 9 F 0 5 C Temperature of heater off Set temperature Ts 0 9 F 0 5 C Tr Room temperature Ts Set temperature Thon Heater on temperature Off On Tr Ts...

Page 53: ...um of 30 min Combination zone Heat pump prohibition zone On 12 V Off 0 V Heater Comp On Off Outdoor temperature Factory setting Outdoor temperature zone 46 4 F 8 C 42 8 F 6 C 0 4 F 18 C 4 F 20 C On Of...

Page 54: ...ed Temperature of heater on Thon Set temperature Ts 0 9 F 0 5 C Temperature of heater off Set temperature Ts 0 9 F 0 5 C Tr Room temperature Ts Set temperature Thon Heater on temperature Off On Tr Ts...

Page 55: ...setting Outdoor temperature zone The outdoor temperature zone transition from one to another will stay in that zone for minimum of 30 min 46 4 F 8 C 42 8 F 6 C 0 4 F 18 C 4 F 20 C Combination zone Hea...

Page 56: ...ction External output Heating thermostat on Humidifier Operation status The heating thermostat output for CN47 Output1 Output2 and Output3 will be on when comp on or external heater on The heating the...

Page 57: ...tch101 1 Setting change prohibited 2 Setting change prohibited 3 Fan delay setting Component location Components on the indoor unit main PCB used for the function settings are located as shown in the...

Page 58: ...switching 6 43 Cold air prevention 7 46 External input control 8 48 Room temperature sensor switching Aux 9 49 Indoor unit fan control for energy saving for cooling 10 60 Switching functions for exte...

Page 59: ...temp will be 80 F 78 F 2 F The temperature correction values show the difference from the Standard setting 00 manufactur er s recommended value Function number Setting value Setting description Facto...

Page 60: ...6 F 3 0 C 16 7 F 3 5 C 17 8 F 4 0 C 4 Auto restart Enables or disables automatic restart after a power interruption Function number Setting value Setting description Factory setting 40 00 Enable 01 D...

Page 61: ...g value Setting description Factory setting 48 00 Both 01 Wired remote controller 9 Indoor unit fan control for energy saving for cooling Enables or disables the power saving function by controlling t...

Page 62: ...to External heater output in Chapter 7 4 Details of function on page 28 Function number Setting value Setting description Factory setting 61 00 Auxiliary heater control 1 01 Auxiliary heater control 2...

Page 63: ...F 4 C 0 9 F 0 5 C 7 2 F 4 C 0 F 0 C 11 9 0 F 5 C 0 9 F 0 5 C 9 0 F 5 C 0 F 0 C 12 5 4 F 3 C 0 F 0 C 0 9 F 0 5 C 0 9 F 0 5 C 13 3 6 F 2 C 0 F 0 C 1 8 F 1 C 0 9 F 0 5 C 14 3 6 F 2 C 0 F 0 C 3 6 F 2 C 0...

Page 64: ...il the auxiliary equipment operation starts during primary equipment opera tion For details refer to Chapter 7 4 Details of function on page 28 Function number Setting value Setting description Factor...

Page 65: ...ed Function number Setting value Setting description Factory setting Cooling setting Heating setting 92 00 Standard no change Standard no change 01 Standard no change 10 up 02 Standard no change 10 do...

Page 66: ...large 4 Installation manual indoor unit 1 Cable tie medium 1 Rail 2 Cable tie small 1 Duct flanges 2 Drain hose insulation 1 Drain cap 2 Coupler heat insulation large 1 Screw 16 Coupler heat insulati...

Page 67: ...Wire type Non polar 2 wire Simple remote controller RXRSRY Compact remote controller concentrates on the basic functions such as Start Stop fan control temperature setting and operation mode Wire type...

Page 68: ...t External input and output PCB RXXCSX Use to connect with external devices and air conditioner PCB External input and output PCB box RXGXRA For installing the External input and output PCB Wire kit R...

Page 69: ...Part 2 OUTDOOR UNIT SINGLE TYPE RP1724HJVXA RP1730HJVXA RP1736HJVXA RP1748HJVXA...

Page 70: ...ht Net lb kg 134 61 Gross 152 69 Connection pipe Size Liquid in mm 3 8 9 52 Gas 5 8 15 88 Method Flare Pre charge length ft m 66 20 Max length 164 50 Max height difference 98 30 Operation range Coolin...

Page 71: ...et lb kg 198 90 Gross 220 100 Connection pipe Size Liquid in mm 3 8 9 52 Gas 5 8 15 88 Method Flare Pre charge length ft m 98 30 Max length 230 70 Max height difference 98 30 Operation range Cooling F...

Page 72: ...view Bottom view 3 77 35 7 16 900 32 11 16 830 17 3 8 440 7 8 21 15 3 4 400 13 330 7 3 4 196 5 3 4 147 6 3 4 170 14 5 8 370 25 5 8 650 Airflow 1 1 4 31 1 2 12 3 7 8 99 3 8 9 68 2 1 Models RP1724HJVXA...

Page 73: ...ort 7 8 22 2 Cable port 11 279 11 11 16 297 20 14 16 530 Treminal blocks 3 Way valve Liquid 3 Way valve Gas Liquid valve Gas valve 7 8 22 2 Cable port 6 2 16 156 4 8 16 115 2 13 16 72 14 16 23 1 15 16...

Page 74: ...100 or more When there are obstacles at the front only When there are obstacles at the front and rear 24 600 or more 24 600 or more 4 100 or more When there is an obstruction in the upper space Unit...

Page 75: ...more When there are obstacles at the front and rear 20 500 or more 60 1 500 or more 10 250 or more When there is an obstruction in the upper space Unit in mm When there are obstacles at the rear and a...

Page 76: ...TION Do not install the outdoor unit in two stage where the drain water could freeze Otherwise the drainage from the upper unit may form ice and cause a malfunction of the lower unit When the outdoor...

Page 77: ...he unit in a location with sufficient space for the refrigerant piping Observe the installation space specifications that are shown in the figures Provide the same space for the air intake at the rear...

Page 78: ...bstacles at the front only When there are obstacles at the front and rear 40 1000 or more 40 1000 or more 6 150 or more When there is an obstruction in the upper space Unit in mm When there are obstac...

Page 79: ...obstruction is present also in the upward area 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 12 300 or more 60 1500 or m...

Page 80: ...more 119 3000 or more NOTES If the space is larger than stated above the condition will be the same as when there is no ob stacle Height above the floor level should be 2 in 50 mm or more When install...

Page 81: ...ThHO ThC Thermistor Compressor temperature Thermistor Discharge temperature Thermistor Outdoor temperature Thermistor Condenser coil Out temperature ThD ThO ThHO Thermistor Room temperature Thermisto...

Page 82: ...temperature Thermistor Condenser coil Out temperature Thermistor Room temperature Thermistor Evaporator coil Med temperature Thermistor Shell Thermistor Discharge temperature thermistor TH2 Accumulato...

Page 83: ...5 Wiring diagrams 5 1 Models RP1724HJVXA and RP1730HJVXA 79 5 1 Models RP1724HJVXA and RP1730HJVXA 5 Wiring diagrams OUTDOOR UNIT RP1724 1748HJVXA OUTDOOR UNIT RP1724 1748HJVXA...

Page 84: ...5 2 Models RP1736HJVXA and RP1748HJVXA 80 5 2 Models RP1736HJVXA and RP1748HJVXA 5 Wiring diagrams OUTDOOR UNIT RP1724 1748HJVXA OUTDOOR UNIT RP1724 1748HJVXA...

Page 85: ...er than outdoor unit 2 5 16 1 000 1 000 0 989 0 972 0 960 0 945 0 926 7 5 24 1 000 0 989 0 972 0 960 0 945 0 926 10 32 0 989 0 972 0 960 0 945 0 926 20 65 0 972 0 960 0 945 0 926 30 98 0 960 0 945 0 9...

Page 86: ...65 0 957 0 915 0 872 0 830 0 784 0 741 30 98 0 915 0 872 0 830 0 784 0 741 HEATING Pipe length m 5 7 5 10 20 30 40 50 60 70 ft 16 24 32 65 98 131 164 196 229 Height difference H Indoor unit is higher...

Page 87: ...e oz 0 14 1 28 2 42 3 g 0 400 800 1 200 7 2 Models RP1736HJVXA and RP1748HJVXA Refrigerant type R410A Refrigerant amount lb oz 9 lb 8 oz g 4 300 Refrigerant charge Total pipe length ft 98 or less 131...

Page 88: ...M 2 119 8 2 Model RP1730HJVXA Cooling m3 h 3 600 l s 1 000 CFM 2 119 Heating m3 h 3 600 l s 1 000 CFM 2 119 8 3 Model RP1736HJVXA Cooling m3 h 4 400 l s 1 222 CFM 2 590 Heating m3 h 4 400 l s 1 222 CF...

Page 89: ...8 4 Model RP1748HJVXA Cooling m3 h 4 400 l s 1 222 CFM 2 590 Heating m3 h 4 400 l s 1 222 CFM 2 590 85 8 4 Model RP1748HJVXA 8 Airflow OUTDOOR UNIT RP1724 1748HJVXA OUTDOOR UNIT RP1724 1748HJVXA...

Page 90: ...z NC 65 NC 60 NC 55 NC 50 NC 45 NC 40 NC 35 NC 30 NC 25 NC 20 NC 15 Model RP1730HJVXA Cooling NC 65 NC 60 NC 55 NC 50 NC 45 NC 40 NC 35 NC 30 NC 25 NC 20 NC 15 Octave band sound pressure level dB 0 dB...

Page 91: ...0 63 125 250 500 1 000 2 000 4 000 8 000 Model RP1748HJVXA Cooling NC 65 NC 60 NC 55 NC 50 NC 45 NC 40 NC 35 NC 30 NC 25 NC 20 NC 15 Octave band sound pressure level dB 0 dB 0 0002 bar Octave band ce...

Page 92: ...ear Airflow Rear view Side 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 Operation noise sound pressur...

Page 93: ...Wiring spec 2 MAX CKT BKR 3 A 40 Power cable AWG 8 Connection cable 4 Size AWG 14 Limited wiring length ft m 246 71 1 Minimum Circuit Ampacity Calculation based on UL1995 2 Selected sample based on J...

Page 94: ...tion Pressure switch Activate 4 2 0 1 MPa Compressor stop Reset 3 2 0 15 MPa Compressor restart Type of protection Protection form Model RP1736HJVXA RP1748HJVXA Fuse Filter PCB AC 250 V 5 A AC 250 V 1...

Page 95: ...settings Otherwise the compressor may fail Discharge any static electricity from your body before touching the push switches Never touch any terminal or pattern of any parts on the control board The p...

Page 96: ...switches and push switches on the board of the outdoor unit The printed characters for the LED display are shown below DIP switch part ON 1 2 3 4 ON 1 2 3 4 ON 1 2 3 4 PUMP DOWN 1 W S TEST RUN SET1 S...

Page 97: ...selecting cooling or heating during test operation OFF SET1 2 DIP For switching SW1 operation OFF SET1 3 DIP Prohibited OFF Do not change SET1 4 DIP Prohibited OFF Do not change SET2 1 DIP For selecti...

Page 98: ...ction SET2 1 Setting Factory setting ON Lower OFF Low CAUTION When the low noise operation function is working cooling and heating capacity will de crease When changing the settings explain to the cus...

Page 99: ...turn off the breaker before changing the DIP switch settings 1 Check the 3 way valves both at the liquid side and gas side are opened Confirm that the DIP switch SET1 2 is switched off 2 Set the opera...

Page 100: ...atus 5 Press TEST RUN switch for more than 3 seconds F E D C MONITOR ERROR B A POWER MODE POWER MODE LED will turn on and test run stops 96 13 1 Test run 13 Test OUTDOOR UNIT RP1724 1748HJVXA OUTDOOR...

Page 101: ...R ERROR B A POWER MODE blink High speed Error location display LEDs A to F of MONITOR light up and display the error location In the case of an overall error LEDs A to F of MONITOR do not light up Exa...

Page 102: ...ERROR B A POWER MODE A 10 1 Blink High speed 9 blink F 1 2 3 4 5 6 7 8 9 A C F J P U E D C For MONITOR A and B Display mode LED on LED off Blink 0 5s Light on 0 5s Light off Number of blinking A 10 Bl...

Page 103: ...or 73 3 Condenser coil liquid temp sensor error 74 1 Outdoor temp sensor error 75 1 Suction gas temp sensor error 76 1 Valve sensor error 76 2 77 1 Heat sink temp sensor error 84 1 Current sensor 1 er...

Page 104: ...ected on the breaker is turned off when changing the DIP switch 1 DIP switch SET1 2 ON 1 2 3 4 SET1 3 To start operation press the PUMP DOWN switch 2 for 3 seconds or press after the power has been on...

Page 105: ...from step 3 F E D C MONITOR ERROR B A POWER MODE 3 blink blink High speed In order to interrupt the pump down operation press the PUMP DOWN switch again The LED will return to the original display be...

Page 106: ...Installation manual 1 Drain cap 5 Drain pipe 1 14 2 Models RP1736HJVXA and RP1748HJVXA Part name Exterior Q ty Part name Exterior Q ty Installation manual 1 Drain cap 7 Drain pipe 1 102 14 1 Models R...

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