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Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual MCAC-HTSM-201506

Midea R410A

Direct Heating Commercial Heat Pump

50Hz

Technical Manual

Applicable Model:

RSJ-420/SZN1-H

RSJ-800/SZN1-H

Midea reserves the right to discontinue, or change specification or designs at any time without notices and
without incurring obligations.

Содержание RSJ-420/PZN1-H

Страница 1: ...CAC HTSM 201506 1 Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual Applicable Model RSJ 420 SZN1 H RSJ 800 SZN1 H Midea reserves the right to discontinue or change specification o...

Страница 2: ...MCAC HTSM 201506 Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual 2 Content Part 1 General information 3 Part 2 Performance 5 Part 3 Installation 26 Part 4 Controller 62...

Страница 3: ...Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual MCAC HTSM 201506 3 Part 1 General information 1 Model Names of Units 4 2 External Appearance 4 3 Nomenclature 4...

Страница 4: ...ect heating Type RSJ 420 SZN1 H 380 415V 3Ph 50Hz RSJ 800 SZN1 H 380 415V 3Ph 50Hz 2 External Appearance RSJ 420 PZN1 H RSJ 800 PZN1 H 3 Nomenclature RSJ 420 S Z N1 H H type Refrigerant type N1 R410A...

Страница 5: ...z Technical Manual MCAC HTSM 201506 5 Part 2 Performance 1 Features 6 2 Specifications 7 3 Dimensions Unit mm 9 4 Service Space Unit mm 11 5 Refrigerant circuit 13 6 Wiring Diagrams 15 7 Electric Char...

Страница 6: ...orb Refrigerant E heater design can ensure that hot water can be produced stably during defrosting period Multi protection High and low pressure protection over load current protection anti freezing f...

Страница 7: ...ntrol EXV Fan Type Axial fan Motor model YDK550 6E Motor brand Yongan Dayang Welling Matchwell Quantity 1 Motor input W 810 680 Capacitor 25 F 450V Speed Hi lo r min 850 750 Coil Type Copper tube and...

Страница 8: ...55 C Model RSJ 800 SZN1 H Power supply 380 415V 3Ph 50Hz Water heating Capacity kW 80 0 Input kW 20 00 COP W W 4 00 Running ambient temperature 15 C 46 C Outlet water temperature Default 56 C 40 C 60...

Страница 9: ...Refrigerant oil ml 3 300 Controller KJR 51 BMKE A Wired controller Air flow m 3 h 25 000 Water pipe Inlet pipe mm DN50 Outlet pipe mm DN50 Hot water yield m 3 h 1 72 Dimension W H D mm 1 015 1 775 1...

Страница 10: ...MCAC HTSM 201506 Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual 10 RSJ 800 SZN1 H Top view...

Страница 11: ...Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual MCAC HTSM 201506 11 4 Service Space Unit mm RSJ 420 SZN1 H...

Страница 12: ...MCAC HTSM 201506 Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual 12 RSJ 800 SZN1 H...

Страница 13: ...Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual MCAC HTSM 201506 13 5 Refrigerant circuit RSJ 420 SZN1 H...

Страница 14: ...MCAC HTSM 201506 Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual 14 RSJ 800 SZN1 H...

Страница 15: ...Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual MCAC HTSM 201506 15 6 Wiring Diagrams RSJ 420 SZN1 H...

Страница 16: ...pressure protection connector 3 System high pressure protection connector 4 E heater Temp Sensor of refrigerant connector 5 Water tank pook Temp sensor connector only the host is valid the slave is in...

Страница 17: ...c control function Set the host unit through the address dial code on electric control board Stipulate the unit with address dial code 0 as the host unit Only after setting the host unit the function...

Страница 18: ...er pump control right side E heater control Only supply ON OFF signal not supply power signal 28 Right side Remote alarm signal output Only supply non source ON OFF signal not supply power signal 29 E...

Страница 19: ...Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual MCAC HTSM 201506 19 RSJ 800 SZN1 H...

Страница 20: ...s valid the slave is invalid 6 Water outlet Temp sensor connector 7 E heater pipe Temp sensor connector of refrigerant 8 Water inlet Temp sensor connector 9 Discharge Temp sensor connector 10 Suction...

Страница 21: ...ing the operating state of unit Right side FORCE constraint button special function for constraint exit 16 Digital screen 17 3 phase 4 wire system power input Lack of phase or wrong phase only is dete...

Страница 22: ...boards Here only explains one PCB board 7 Electric Characteristics Model RSJ 420 SZN1 H RSJ 800 SZN1 H Outdoor unit Hz 50 50 Voltage 380 415V 3Ph 380 415V 3Ph Min 342V 342V Max 456V 456V Power supply...

Страница 23: ...5 05 55 48 02 4 75 60 47 19 4 31 30 15 40 46 63 5 65 45 46 31 5 32 50 45 86 4 99 55 47 61 4 68 60 45 03 4 45 25 15 40 42 04 5 09 45 42 62 4 86 50 42 72 4 60 55 44 28 4 34 60 42 49 3 93 20 15 40 41 15...

Страница 24: ...6 50 94 60 4 76 55 94 04 4 49 60 92 81 4 21 30 15 40 88 94 5 30 45 88 62 5 00 50 88 17 4 68 55 87 70 4 39 60 87 34 4 16 25 15 40 83 06 4 86 45 83 64 4 64 50 83 74 4 39 55 83 70 4 15 60 83 51 3 92 20 1...

Страница 25: ...Qty Purpose Installation operation manual 1 Water tank temperature sensor 1 For water tank temperature inspection Wired controller 1 Control the unit and display unit status Wire harness matched with...

Страница 26: ...01506 Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual 26 Part 3 Installation 1 Safety information 27 2 Unit Installation 28 3 Trial run 44 4 Fault analysis and solutions 46 5 Mai...

Страница 27: ...manual Improper installation may result in water leakage electric shock or fire Ask qualified person for relocating repairing and maintaining the unit Improper installation may result in water leakage...

Страница 28: ...not operate the unit with a wet hand An electric shock may be caused The installation height of power supply should be over 1 8m if there is any water spattered separate the power supply from water A...

Страница 29: ...MCAC HTSM 201506 29 2 1 Unit outlook RSJ 420 SZN1 H RSJ 800 SZN1 H 2 2 Carrying of unit Handling rope should at least can bear 3 times of the unit weight and must go through the handling holes shown...

Страница 30: ...cess Unit gradient should be less than 3 Handle with care do not collide and drag drastically DO NOT stand in handling operating radius The distance between the air outlet mesh of unit and lift hook s...

Страница 31: ...not be connected to the foundation of the building to avoid affecting the people due to transfer of noise and vibration The base of the unit is provided with installation holes which can be used to c...

Страница 32: ...Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual 32 RSJ 800 SZN1 H 2 5 Unit installation space Ensure enough space for installation and maintenance RSJ 420 SZN1 H Unit mm RSJ 800...

Страница 33: ...turbulence disturbs air inlet If short walls are applied it should be shorter than the unit Distance between short walls or louvers to unit should either satisfy requirements of unit installation min...

Страница 34: ...er into the pipeline system during the pipeline installation and connection The water flow switch which is used to detect the circulating water flow volume should be prepaired in site The cut off valu...

Страница 35: ...f water pipe system Icon specifications Stop valve Motor operated valve Flexible rubber joint soft connect Water pump Water using end Water supply controller Solenoid valve Pressure reducing valve Ref...

Страница 36: ...MCAC HTSM 201506 Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual 36 Double units drawing RSJ 800 SZN1 H Single unit drawing...

Страница 37: ...erature sensor T5 can not be placed in the water or on the water pipe directly The water tank must be set a temperature pipe where the temperature sensor T5 is installed The water tank must have some...

Страница 38: ...head of circulative pump On way resistance Local resistance Unit resistance Rated flow of circulative pump Rated flow of a single circulation heating unit Circulating unit quantity 2 8 E heater capac...

Страница 39: ...ent Power supply wire and signal wire should be arranged properly without interruption to each other do not contact with connecting pipes and valves as well When strong electricity and weak electricit...

Страница 40: ...5mm2 Manual switch Capacity 125A Fuse 100A Leakage protector 30mA 0 1sec below Specifications of controlling wire Item Size UL1015 Remarks E heater controlling wire 18 2 core Circulating water pump co...

Страница 41: ...Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual MCAC HTSM 201506 41 Multi units RSJ 420 SZN1 H RSJ 800 SZN1 H...

Страница 42: ...MCAC HTSM 201506 Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual 42 Electric wiring figure Electric control schematic diagram of the unit Only for reference...

Страница 43: ...sor starts normally The water flow switch water pump ON OFF singal and E heater are only connected with the host unit which are not 220V control signal So do not directly drive loading When the host u...

Страница 44: ...t RSJ 800 SZN1 H then it will invalid Each module of water heat pump has the electric control function Set the host unit through the address dial code on electric control board Stipulate the unit with...

Страница 45: ...re normal 2 Whether the input voltage of the unit meet the requirements of the unit 3 Whether the electronic lock has been unlocked 4 Whether the water outlet temperature is normal 5 Whether there is...

Страница 46: ...temperature fluctuation which is a normal phenomenon and will not affect the actual use appropriately adjust the water pressure can improve this phenomenon Water outlet temperature cannot reach the se...

Страница 47: ...to drive Possible reason Detect and settle measure 1 Power errors Connected with wrong phase sequence 2 Wire connection is loosening Check and fasten again 3 Relay or fuse errors Check and repair 4 Co...

Страница 48: ...device Compressor operated with no heating Possible reason Detect and settle measure 1 Refrigerant leakage Check repair and replenish the refrigerant 2 Compressor error Change the compressor No obvio...

Страница 49: ...rror of EEprom 13 P0 System low pressure protection 14 P1 System high pressure protection 15 P2 Compressor current of system is overload Protection 16 P4 Protection for discharge Hi temperature Tp 115...

Страница 50: ...he main unit with T5 situation display T5 temperature if without T5 or T5 error the unit will display error the slave unit will display the T1 temperature Detail spot check display contents as followi...

Страница 51: ...ect and circulate heating for closed tank with 50Hz model 3A01 20 Protection frequency XY X for stop frequency because of 4 protections within 2 hours Y for protection frequency within 2 hours 21 Prot...

Страница 52: ...ea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual 52 E2 Communication error of host unit and wired controller main unit and slave unit E8 Error of circulating water flow detector Only...

Страница 53: ...e sensor in the water tank only host unit displays T5 E5 Error of air heat exchanger temperature sensor T3 E6 Error of outdoor ambient temperature sensor T4 E7 Error of E heater pipe temperature senso...

Страница 54: ...MCAC HTSM 201506 Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual 54 P0 System low pressure protection...

Страница 55: ...Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual MCAC HTSM 201506 55 P1 System high pressure protection...

Страница 56: ...MCAC HTSM 201506 Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual 56 P2 Compressor current of system is overload Notes the value of Io is 30A...

Страница 57: ...Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual MCAC HTSM 201506 57 P4 Protection for discharge Hi temperature Tp 115 C...

Страница 58: ...it is not matched with wired controller host unit will display P7 and wired controller will display E2 Power supply of wired controller is 10VAC if the power supply is not stable the code of protectio...

Страница 59: ...the unit When the heat exchanger has dust it should be immediately cleaned in case to affect the unit capacity or cause the unit stops for the protection Periodically clean the filter in the water sys...

Страница 60: ...bonate or other minerals when these substances on the heat transfer surface scale is large then can affect the heat transfer performance and lead to increased power consumption high air exhaust pressu...

Страница 61: ...Technical Manual MCAC HTSM 201506 61 PH value Total hardness Electrical conductivity Sulphate ion 6 5 8 0 50ppm 200 s cm 25 C 50ppm Silicon Iron content Sulfide ion Chloride ion 30ppm 0 3ppm None 50pp...

Страница 62: ...MCAC HTSM 201506 Midea R410A Direct Heating Commercial Heat Pump 50Hz Technical Manual 62 Part 4 Controller 1 Wired Controller Standard 63...

Страница 63: ...es 1 Touch key operation 2 LCD displays operation parameters 3 Multiple timers 4 Real time clock battery life 5 8 years 1 2 Introduction of function buttons on the wired controller The wired controlle...

Страница 64: ...ays when check function is on Displays when ambient temperature is below 2 C which means the main unit need anti freezing action Displays when no key operation for 2 minutes and all keys are locked Pr...

Страница 65: ...Setting water temperature timing and mode etc Press and hold this key for 3 seconds to enter check status 14 Add and Reduce key and Move up or move down values of temperature timing water level etc T...

Страница 66: ...in the dotted line frame are not general setting The wired controller automatically judges the needed setting according to the model of main unit Setting water temperature Press the or button to adju...

Страница 67: ...means the current setting is the hour of Timer 1 on press the or to adjust press key when finished and then the minute of the clock will flash which means the current setting is the minute of Timer 1...

Страница 68: ...mer 1 Similarly the setting of Timing 3 is the same as this method After setting is finished press OK key or wait for 7 seconds to confirm the setting and the LCD will display the effective timing inf...

Страница 69: ...Set the cycle heating water temperature Reserved Continuous press SET key 3 times to enter cycle heating water temperature setting The LCD will display SET CYCLE WATER TEMP and temperature value will...

Страница 70: ...ould be correct otherwise cannot get the correct timing on and timing off Set water level Reserved Press the SET key 5 times to enter the water level setting Press the or key to adjust the water level...

Страница 71: ...to run the main water pump in the device installing and debugging Operation method Press AUXILIARY key 3 times to enter this function The icon will flash and then press OK key to confirm The PUMP ico...

Страница 72: ...ormation from 0 15 Press or to adjust the check sequence number of one unit and check all the status information of this unit Check content Water outlet temperature T1 2 Outdoor pipe temperature T3 3...

Страница 73: ...ual to the user Reinstallation must be performed by professional Do not install the unit in a place vulnerable to leakage of flammable gases Once flammable gases are leaked and left around the wired c...

Страница 74: ...ks Wired controller 1 Cross round head wood mounting screw 3 M4 20 for mounting on the wall Cross round head mounting screw 2 M4 25 for mounting on the electric switch box Installation manual 1 Owner...

Страница 75: ...two methods to connection between wired controller and main unit 1 4 5 Back cover installation Use straight head screwdriver to insert into the buckling position in the bottom of wired controller and...

Страница 76: ...ust the length of two plastic screw bars in the accessory to be standard length from the electrical box screw bar to the wall Make sure when install the screw bar to the electrical box screw bar make...

Страница 77: ...l Manual MCAC HTSM 201506 77 Over fasten the screw will lead to deformation of back cover 1 4 6 Wire outlet Avoid the water enter into the wired controller use trap and putty to seal the connectors of...

Страница 78: ...Front cover installation After adjusting the front cover and then buckle the front cover It should avoid to clamping the communication switching wire during installation Correct install the back cove...

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