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Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual
Heat Pump Water Heater 50Hz
A1 Series Technical Manual
Applicable Model: (New CE safety directive)
Midea reserves the right to discontinue, or change specification or designs at any time without notices and
without incurring obligations.
Midea R410A
Domestic Pools & Spas
LRSJ-60/NYN1-A1
LRSJ-80/NYN1-A1
LRSJ-120/NYN1-A1
LRSJ-140/NYN1-A1
MCAC-HTSM-201409
1
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Summary of Contents for Midea LRSJ-60/NYN1-A1
- Page 1 Domestic Pools & Spas Heat Pump Water Heater 50Hz A1 Series Technical Manual Applicable Model: (New CE safety directive) LRSJ-60/NYN1-A1 LRSJ-80/NYN1-A1 LRSJ-120/NYN1-A1 LRSJ-140/NYN1-A1 Midea reserves the right to discontinue, or change specification or designs at any time without notices and without incurring obligations.
- Page 2 MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual Content Part. 1 General information ......3 Part. 2 Performance ........5 Part. 3 Installation ........25...
- Page 3 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 Part. 1 General information 1. Model Names of Units ............4 2. External Appearance ............. 4 3. Nomenclature ............... 4...
- Page 4 MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual 1. Model Names of Units Model Power supply LRSJ-60/NYN1-A1 220-240V~, 1Ph, 50Hz LRSJ-80/NYN1-A1 220-240V~, 1Ph, 50Hz Domestic pools & spas HPWH LRSJ-120/NYN1-A1 220-240V~, 1Ph, 50Hz LRSJ-140/NYN1-A1 220-240V~, 1Ph, 50Hz 2.
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Page 5: Table Of Contents
Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 Part. 2 Performance 1. Features ................6 2. Specifications ..............7 3. Dimensions (Unit: mm) ........... 10 4. Service Space ..............11 5. Refrigerant circuit ............12 6. Wiring Diagrams .............. 13 7. -
Page 6: Features
MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual 1. Features Titanium heat-exchanger Titanium heat-exchanger has highly resistant to corrosion. High strength and durability, pressure test at water side (0.5MPa, water temperature 45° C, 60,000 times). -
Page 7: Specifications
Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 2. Specifications Model LRSJ-60/NYN1-A1 LRSJ-80/NYN1-A1 Power supply 220-240V~, 1Ph, 50Hz 220-240V~, 1Ph, 50Hz Outlet water Heating mode Default 28° C, 20° C～35° C Default 28° C, 20° C～35° C... - Page 8 MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual Continues Model LRSJ-60/NYN1-A1 LRSJ-80/NYN1-A1 Ф50 Ф50 Inlet pipe Ф50 Ф50 Outlet pipe Water pipe Ф25 Ф25 Drainage pipe Max/Min resisting pressure 0.15MPa/0.4MPa 0.15MPa/0.4MPa Min. volume flow Hot water yield Max.
- Page 9 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 Continues Model LRSJ-120/NYN1-A1 LRSJ-140/NYN1-A1 Type Copper tube and aluminum fin Ф7.94 Ф7.94 Tube size No. of rows Coil Fin spacing Tube pitch(a)×row pitch(b) 22×19 22×19 Length× height 766×792 766×792...
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Page 10: Dimensions (Unit: Mm)
MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual 3. Dimensions (Unit: mm) Top view Unit: mm Model LRSJ-60/NYN1-A1 1,015 LRSJ-80/NYN1-A1 1,015 LRSJ-120/NYN1-A1 1,050 LRSJ-140/NYN1-A1 1,050... -
Page 11: Service Space
Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 4. Service Space... -
Page 12: Refrigerant Circuit
MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual 5. Refrigerant circuit... -
Page 13: Wiring Diagrams
Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 6. Wiring Diagrams LRSJ-60/NYN1-A1, LRSJ-80/NYN1-A1... - Page 14 MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual LRSJ-120/NYN1-A1, LRSJ-140/NYN1-A1...
- Page 15 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 LRSJ-60/NYN1-A1, LRSJ-80/NYN1-A1 LRSJ-120/NYN1-A1, LRSJ-140/NYN1-A1 Item Detail N.C. No need connect. Tout Outlet water temperature sensor. Heat-exchanger temperature sensor. Outdoor ambient temperature sensor. Inlet water temperature sensor. Temperature sensor of compressor discharge.
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Page 16: Electric Characteristics
MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual 7. Electric Characteristics Model LRSJ-60/NYN1-A1 LRSJ-80/NYN1-A1 Voltage 220-240V, 1Ph 220-240V, 1Ph Outdoor unit Min. 198V 198V Max. 254V 254V 34.5 26.7 Power supply TOCA 26.7 34.5 Compressor 0.16 0.16 0.71... -
Page 17: Capacity Curve
Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 8. Capacity Curve LRSJ-60/NYN1-A1 Heating mode: Test condition, inlet water temperature of the units is 27° C; outlet water temperature is 29° C. Relation between heating capacity and outdoor ambient temperature:... - Page 18 MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual Cooling mode: Test condition, inlet water temperature of the units is 27° C; water volume is 2.6m Relation between cooling capacity and outdoor ambient temperature: Relation between EER and outdoor ambient temperature:...
- Page 19 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 LRSJ-80/NYN1-A1 Test condition, inlet water temperature of the units is 27° C; outlet water temperature is 29° C. Relation between heating capacity and outdoor ambient temperature: Relation between COP and outdoor ambient temperature:...
- Page 20 MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual Cooling mode: Test condition, inlet water temperature of the units is 27° C; water volume is 3.5m Relation between cooling capacity and outdoor ambient temperature: Relation between EER and outdoor ambient temperature:...
- Page 21 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 LRSJ-120/NYN1-A1 Test condition, inlet water temperature of the units is 27° C; outlet water temperature is 29° C. Relation between heating capacity and outdoor ambient temperature: Relation between COP and outdoor ambient temperature:...
- Page 22 MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual Cooling mode: Test condition, inlet water temperature of the units is 27° C; water volume is 5.0m Relation between cooling capacity and outdoor ambient temperature: Relation between EER and outdoor ambient temperature:...
- Page 23 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 LRSJ-140/NYN1-A1 Test condition, inlet water temperature of the units is 27° C; outlet water temperature is 29° C. Relation between heating capacity and outdoor ambient temperature: Relation between COP and outdoor ambient temperature:...
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Page 24: Accessories
MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual Cooling mode: Test condition, inlet water temperature of the units is 27° C; water volume is 5.8m Relation between cooling capacity and outdoor ambient temperature: Relation between EER and outdoor ambient temperature: 9. - Page 25 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 Part. 3 Installation 1. Safety information ............26 2. Unit Installation ..............28 3. Functions & maintenance ..........34 4. Controller & operation ............37 5. Trial run................40 6.
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Page 26: Safety Information
MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual 1. Safety information To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring of instructions may cause harm or damage. - Page 27 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 Do not dispose this product as unsorted municipal waste. Collection of such waste separately for special treatment is necessary. Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities.
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Page 28: Unit Installation
MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual A discharge pipe connected to the pressure-relief is to be installed in a continuously downward direction and in a frost-free environment. The maximum target temperature is limited to 35° C in order to protect the swimming pool liner. - Page 29 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 2.1 Unit outlook 2.2 Carrying of unit Decide the correct way of conveying the equipment. Try to transport the unit with orginal package. Please put down the unit as gentle as possible during removing, unit could be leaned no more than 45 degree.
- Page 30 MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual The installation as well as electric and hydraulic connections must be carried out in compliance with applicable standards. Keep the unit out of reach of children. 2.4 Distance of unit ground screws (Unit: mm)
- Page 31 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 2.6 Water pipe connection of the unit Water pipe joint specifications Name Connective pipe PVC Φ50 Outlet water pipe PVC Φ50 Inlet water pipe PVC Φ25 Drainage connecting pipe ...
- Page 32 MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual /h – pressure drop 0.22bar. Average water flow 5.5m Installation diagram V1, V2, V3: By-pass valve; V4, V5: Regulator valve (Recommended facilitating adjustment close to the machine.
- Page 33 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 All wiring should be finished, before power is switched on to the unit, please confirm all connections are correct. Select the power supply and wire size according to this manual. The size of the power cable of the unit should be greater than that of ordinary motors.
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Page 34: Functions & Maintenance
MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual deconcentrator and connected to the power supply device. Please select the wire diameter by following methods: The diameter of main wire is conducted by the horsepower of the HPWH and preceding table. - Page 35 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 In case of the unit requiring deicing during heating operation, to prevent the heating efficiency from decreasing, defrosting operation will turn on automatically (Approx. 2~10min). In the process of defrosting operation, the unit air supply motor will stop running.
- Page 36 MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual Disoperation occurs during unit working: In case disoperation caused by lighting or vehicle radio, cut off the manual power switch, and turn it on again, afterward press RUN/STOP key.
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Page 37: Controller & Operation
Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 After leave the unit idle for a long period, please check the followings: Inspect the air intake orifice or air outlet is blocked periodically. If any , remove the foreign substance to let the air flow fluently. - Page 38 MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual 4.2 Name and function description of LCD screen of wired controller 1. COOL indicator: When user sets the cooling water mode, it lights up. 2. HEAT indicator: When user sets the heating water mode, it lights up.
- Page 39 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 will go out automatically except POOL TEMP indicator lighting. When the unit is running, if there is no operation or malfunction for 10s, the backlight of the display will go out automatically. After 30s, all indicator will disappear except operation mode and pool temperature.
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Page 40: Trial Run
MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual Power on and power off Press ON/OFF button, and after all the above have finished, the system will run as the setting. Just simply press the same button to stop it. -
Page 41: Fault Analysis And Solutions
Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 In the process of trial run, please check the following items: 口 Check whether the switch of the wired controller is normal. 口 Check whether the functional keys of the controller are normal. - Page 42 MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual In case of following malfunction, please cut off the manual power switch, and repair it. The fuse was burnt out frequently or the earth leakage protective device was broken up frequently.
- Page 43 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 Error code and protection code: Code Explanation Solution Check whether the communication wire is damaged. Check whether the communication wire is correctly connected Outdoor unit and to the motherboard.
- Page 44 MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual Continues Code Explanation Solution Check whether the Tp temperature sensor is damaged. Discharge pipe Check whether the Tp temperature sensor is correctly temperature sensor connected to the motherboard. Tp error.
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Page 45: Resistance Characteristic Of Temperature Sensor
Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409 7. Resistance characteristic of temperature sensor Resistance characteristic of ambient Temp., pipe Temp. and suction Temp. sensor. Temp. Resistance Temp. Resistance Temp. Resistance Temp. Resistance value (kΩ) value (kΩ) value (kΩ) - Page 46 MCAC-HTSM-201409 Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual Resistance characteristic of discharge temperature sensor Temp. Resistance Temp. Resistance Temp. Resistance Temp. Resistance value (kΩ) value (kΩ) value (kΩ) value (kΩ) (° C) (° C) (° C) (°...
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