Midea LRSJ-60/NYN1, LRSJ-80/NYN1, LRSJ-120/NYN1, LRSJ-140/NYN1 Technical Manual
1
MDV Swimming Pool Type
Heat Pump Water Heater
Technical Manual
Applicable Models:
LRSJ-60/NYN1
LRSJ-80/NYN1
LRSJ-120/NYN1
LRSJ-140/NYN1
Midea reserves the right to discontinue, or change at any time, specifications or designs without notices and
without incurring obligations.
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Contents
Part 1 General Information ........................................................................3
1. Measurements....................................................................................................... 4
2. External Appearance............................................................................................ 4
3. Nomenclature........................................................................................................ 5
4. Features................................................................................................................. 6
Part 2 Outdoor Units...................................................................................7
1. Specifications....................................................................................................... 8
2. Capacity&COP table........................................................................................... 17
3. Dimensions ......................................................................................................... 17
4. Service Space ..................................................................................................... 18
5. Wiring Diagrams................................................................................................. 19
6. System refrigerant Diagrams............................................................................. 17
7. Exploded View .................................................................................................... 22
8. PCB explain......................................................................................................... 22
Part 3 Installation......................................................................................26
1. Precautions......................................................................................................... 27
2. Installation information...................................................................................... 28
3. Unit Appearance and Composition................................................................... 29
4. Accessories......................................................................................................... 30
5. Inspecting and Handling the Unit ...................................................................... 30
6. Electric Wiring..................................................................................................... 31
Part 4 Trial Operation ...............................................................................33
1. Confirmation before the trial operation............................................................ 34
2. OPERATING INSTRUCTION............................................................................... 34
3. PCB explanation.....................................................................
4. Maintenance............................................................................
5. Malfunctions and Resolutions...............................................
3
Part 1
General Information
1. Measurements...................................................................4
2. External Appearance........................................................4
3. Nomenclature....................................................................5
4. Features.............................................................................6
4
1. Measurements
Model
Dimension
(mm:
W*H*D)
Net weight / Gross weight
(kg)
Power Supply
CE-LRSJ-60/NYN1
1015*705*385 64/73 220~240V-1ph-50Hz
CE-LRSJ-80/NYN1
1015*705*385 66/77
220~240V-1ph-50Hz
CE-LRSJ-120/NYN1
1050*855*315 75/85
220~240V-1ph-50Hz
CE-LRSJ-140/NYN1
1050*855*315 75/85
220~240V-1ph-50Hz
2. External Appearance
LRSJ-60/NYN1 LRSJ-80/NYN1 LRSJ-120/NYN1 LRSJ-140/NYN1
5
3. Nomenclature
Household Water Heating Unit
23
45
6
7
8
Power supply specification code
-
Heating mode code
Rated hot water output, unit: 100 W
whether the system with pump
Installation type code
cooling recovery code
Export model code
/
-
9
Other functions code
10 11
12
-
Water supply pump lift code
Refrigerant code
Design code
1
Export model code
For example:
-
/
Water heat ing unit code
Rated hot water output, unit: 100 W
RSJ
L
Wi th cooling function
60
N
Y
N1
No water pump with machine
Heating mode code:swimming pool
Refrigerant type :R410a
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4. Features
4.1 Titanium heat exchanger
a. Excellent prevent eroding material,keep the machine long life.
b. High energy efficiency.
4.2 LCD display and build in high pressure meter in refrigerant side
User can see the machine running parameter and the state quickly.
Engineer can see the machine discharge pressure quickly, get hold of the machine
running reliablity .
4.3 About the 3-minute protection
Restart or open the manual switch after the unit has shut，down. Unit will not start immediately until 3
minutes later,because of the self-protect function of the compressor.
4.4 Dsfrosting function
In case of the unit requiring deicing during heating operation,TO prevent the heating efficiency from decreasing,
defrosting operation will turn on automatically (approx. 2~8 minutes) .
In the process of defrosting operation, the unit air supply motor will stop running.
4.5 Safety
a. Realize isolation between water and electricity. No electric shock problem, more safety.
b. No fuel tubes and storage, no potential danger from oil leakage, fire, explosion etc.
4.6 Autmatic Control:
Automatic start-up and shutdown, automatic defrosting by revising refrigerant cycle. Save you much extra
operation.
4.7 R410a gas, Environmental protection.
a. No discharge of poisonous gas.
b. No pollution to atmosphere and environment
4.8 All-the-weather Running.
Within the temperature range from -7 to 38℃, it will not be affected by night, cloudy sky,
rain even snow whether.
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Part 2
Outdoor Units
1. Specifications....................................................................8
2. Capacity & COP table .....................................................17
3. Dimensions......................................................................17
4. Service Space..................................................................18
5. Wiring Diagrams .............................................................19
6. System refrigerant Diagrams.........................................22
7. Exploded View.................................................................22
8. PCB explain.....................................................................22
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1. Specifications
HPWH SPECIFICATION
Model CE-LRSJ-60/NYN1 CE-LRSJ-80/NYN1 CE-LRSJ-120/NYN1 CE-LRSJ-140/NYN1
Power supply Ph-V-hz 220-240V 50Hz 1Ph 220-240V50Hz1Ph 220-240V 50Hz 1Ph 220-240V 50Hz 1Ph
Capacity
kW 6 8 12 14
Input
kW 1.15 1.52 2.40 2.55
Water
Heating
Outdoor ambient
temperature
(-7℃～38℃) (-7℃～38℃) (-7℃～38℃) (-7℃～38℃)
Capacity kW 4.0 5.8 8.4 10.35
Input kW 1.25 1.5 2.4 2.9
Water
Cooling
Outdoor ambient
temperature
(15℃～43℃) (15℃～43℃) (15℃～43℃) (15℃～43℃)
COP 5.2 5.3 4.9 5.3
Max power kW 1.45 1.9 3.3 3.5
Outdoor noise level
dB(A) 58 58 58 58
Refrigerant type/Quantity
Kg R410A/1.0 R410A/1.25 R410A/1.6 R410A/1.85
Heat exchanger
material
Titanium-tube
thermal exchanger
Titanium-tube
thermal exchanger
Titanium-tube
thermal exchanger
Titanium-tube
thermal exchanger
Water inlet and
outlet pipe
diameter
mm
DN50 DN50 DN50 DN50
Drain pipe
diameter
mm
DN25 DN25 DN25 DN25
Heat
exchanger
Max. pressure
MPa 0.4 0.4 0.4 0.4
Fin type
Hydrophilic
aluminium
Hydrophilic
aluminium
Hydrophilic
aluminium
Hydrophilic
aluminium
Tube outer type
innergroove tube innergroove tube innergroove tube innergroove tube
Air side
exchanger
Air outflow mode
air flow from rear air flow from rear air flow from rear air flow from rear
Dimension
(W*H*D)
mm
1015*705*385 1015*705*385 1050*855*315 1050*855*315
Packing
(W*H*D) mm 1095*755*455 1095*755*455 1170*905*410 1170*905*410
Outdoor
unit
Net/Gross weight
kg 64/73 66/77 75/85 75/85
Water contented capacity (m3)
40.0 50.0
60～85 75～100
Hot Water Yield
m
3
/h
2.3 2.8 3.8 3.8
Wire controller
KJRH-90B/E KJRH-90B/E KJRH-90B/E KJRH-90B/E
Water Heating Outwater Temp
℃
11℃～35℃ 11℃～35℃ 11℃～35℃ 11℃～35℃
Water Cooling Outwater Temp
℃
6℃～30℃ 6℃～30℃ 6℃～30℃ 6℃～30℃
Compressor current protection
value A
10 12 20 22
Remark:
1. The test conditions: outdoor temp.
Water Heating： outdoor temp. 24/19℃(DB/WB), inlet water temp. 27℃,outlet water temp. 29℃
Water Cooling： outdoor temp. 35/24℃(DB/WB), inlet water temp. 27℃
2. The specification may be changed for product improvement, please refer to the nameplate.
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2. Capacity & COP curve
10
MODEL : 6 kw
11
12
MODEL :8 kw
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