Gree GRS-CQ8.0Pd/NaEK User manual

Air-to-water Heat Pump Split Versati
Commercial AC R&D DepartmentⅠ
March , 2016

Contents
Product........................................................................................................................................1
1. Product Data...........................................................................................................................1
1.1 Lineup............................................................................................................................1
1.1.1 Main Unit..............................................................................................................1
1.1.2 Water Tank...........................................................................................................2
1.2 Nomenclature.................................................................................................................2
1.2.1 Main Unit..............................................................................................................2
1.2.2 Water Tank...........................................................................................................2
1.3 Product Features............................................................................................................3
1.3.1 General................................................................................................................3
1.3.2 Features...............................................................................................................3
1.4 Operating Principle.........................................................................................................4
1.4.1 Schematic Diagram..............................................................................................4
1.5 Technical Data...............................................................................................................5
1.5.1 Parameter List......................................................................................................5
1.5.2 Nominal Working Conditions ................................................................................9
1.5.3 Operation Range..................................................................................................9
1.5.4 Electric Data.........................................................................................................9
1.5.5 Capacity Correction............................................................................................10
2 Outline Dimensions................................................................................................................11
2.1 Outline dimensions of outdoor unit...............................................................................11
2.2 Outline dimensions of indoor unit .................................................................................13
3 Explosive Views and Part Lists...............................................................................................14
4 Supply Scope.........................................................................................................................24
Design and Selection ................................................................................................................26
1 Installation Example...............................................................................................................26
2 Model Selection......................................................................................................................28
2.1 Speculations of Power Supply......................................................................................28
2.2 Operation Conditions....................................................................................................28
2.3 Flowchart of Model Selection........................................................................................29
2.4 Design Principle ...........................................................................................................29
3 Selection of the Underfloor Coils............................................................................................29
3.1 Calculation of Unit Load for Floor Heating....................................................................29
3.2 Selection of Tube Spacing of the Underfloor Coils........................................................30
3.3 Selection of Loop Quantity of Coils for Each Room......................................................30
3.3.1 Type of Underfloor Coils.....................................................................................30
3.3.2 Selection of Loop Quantity for Each Room.........................................................31
4 Quantity and Location of the Water Traps and Collectors.......................................................31
4.1 Design Requirements on Loop Quantity for Circulation Water......................................31
4.2 Requirements on Installation of the Water Trap (Collector) ..........................................33
5 Section of FCU.......................................................................................................................33
5.1 FCU Type Selection.....................................................................................................33
5.2 Matching of Capacity....................................................................................................33
6 Selection of the Water Tank...................................................................................................34

6.1 Specifications of the Water Tank..................................................................................34
6.2 Volume Selection of the Water Tank ............................................................................34
6.2.1 Selection Based on Water Consumption Per Capita...........................................34
6.2.2 Selection Based on Sanitary Utensils.................................................................35
6. 2.3 Selection of the Water Tank ..............................................................................35
7 Examples for Model Selection................................................................................................35
7.1 General Introduction to the Example Project ................................................................35
7.2 Heat Load Calculation..................................................................................................35
7.2.1 Load Calculation of a Single Floor......................................................................35
7.2.2 Arrangement Design of the Underfloor System for A Single Floor......................36
7.2.3 Arrangement Design of the Underfloor System for the Bath Room.....................36
7.2.4 Arrangement Design of the Underfloor System for the Master and Bath Rooms.36
7.2.5 Check.................................................................................................................36
7.3 Model Selection............................................................................................................37
Unit Control...............................................................................................................................38
1 Integral Control Concept.........................................................................................................38
1.1 Control Principle Diagram.............................................................................................38
1.2 Control Flowchart.........................................................................................................41
2 Main Control Logics................................................................................................................41
2.1 Cooling.........................................................................................................................41
2.1.1 Control to the Compressor .................................................................................41
2.1.2 Freeze Protection...............................................................................................42
2.2 Heating.........................................................................................................................42
2.2.1 Control to the Compressor .................................................................................42
2.2.2 Over-temperature Protection..............................................................................42
2.2.3 Control to the Auxiliary Electric Heater...............................................................42
2.3 Water Heating..............................................................................................................42
2.3.1 Water Heating by the Main Unit..........................................................................42
2.3.2 Water Heating by the Solar System....................................................................43
2.4 Shutdown.....................................................................................................................43
2.5 Control to the Compressor ...........................................................................................43
2.6 Control to the Fan.........................................................................................................43
2.7 Control to the 4-way Valve ...........................................................................................44
2.8 Control to the Water Pump...........................................................................................44
2.9 Control the Electrostatic Expansion Valve....................................................................44
2.10 Protection Control.......................................................................................................44
3 Controller ...............................................................................................................................45
3.1 External View...............................................................................................................45
3.1.1 Keys & Indicating LEDs......................................................................................45
3.1.2 Standby Page and Homepage............................................................................46
3.2 Operation Instructions ..................................................................................................47
3. 2.1 On/Off ...............................................................................................................47
3.2.2 Function Setting .................................................................................................48
3.2.3 Parameter Setting (Parameter Set) ....................................................................68
3. 2.4 View..................................................................................................................71
3. 2.5 General Setting .................................................................................................76

3. 2.6 Key Lock ...........................................................................................................77
Unit Installation..........................................................................................................................79
1. Installation Guides.................................................................................................................79
1.1 Installation Positions of the outdoor unit.......................................................................80
1.2 Installation Positions of the indoor unit .........................................................................80
1.3 Matters Need Attention.................................................................................................80
2 Filed Supplied Pipes and Valves............................................................................................80
3 Service Tools .........................................................................................................................82
4 Instalaltion Instructions...........................................................................................................83
4.1 Installation Examples ...................................................................................................83
4.2 Pre-Installation.............................................................................................................84
4.3 Selection of Installation Location..................................................................................84
4.4 Outline Dimension of Outdoor Unit...............................................................................85
4.5 Installation Clearance Data ..........................................................................................87
4.6 Outline Dimension of Indoor Unit..................................................................................87
4.7 Installation Clearance Data ..........................................................................................88
4.8 Installation of Water Tank.............................................................................................88
4.9 Electric Wiring..............................................................................................................91
4.10 Wiring of the Terminal Board......................................................................................94
4.11 Wiring of the 2-Way Valve..........................................................................................96
4.12 Wiring of the3-Way Valve...........................................................................................97
4.13 Wiring of Other Auxiliary Heat Sources ......................................................................98
4.14 Wiring of the Gate-Controller......................................................................................98
4.15 Wiring of the Remote Air Temperature Sensor...........................................................99
4.16 Wiring of the Thermostat..........................................................................................100
4.17 Wiring of the Control.................................................................................................102
5 Commissioning and Trial Run...............................................................................................104
5.1 Check before startup..................................................................................................104
5.2 Test run......................................................................................................................105
Test Operation & Troubleshooting & Maintenance ..................................................................107
1 Trial Run ..............................................................................................................................107
1.1 Check for Wiring.........................................................................................................107
1.2 Check for the Water System.......................................................................................107
1.3 Check for the Communication System........................................................................107
1.4 Trial Run ....................................................................................................................108
2 Error Code List.....................................................................................................................108
3 Flow Chart Of Troubleshooting.............................................................................................110
3.1 Comp High-pressure Protection E1..........................................................................110
3.2 Comp Low- pressure Protection E3 .........................................................................111
3.3 Comp Discharge Temp Protection E4 ........................................................................112
3.4 Overload Protection of Compressor or Driver Error....................................................113
3.5 DC Fan Error EF ........................................................................................................114
3.6 Temperature Sensor Error..........................................................................................114
3.7 Communication Malfunction E6..................................................................................115
3.8 Capacity Switch Error (Code:"C5").............................................................................116
4 Diagnosis of Driving .............................................................................................................116

4.1 Diagnosis Flowchart of Driving of Single-phase Unit and Three-phase Unit...............116
5 Daily Maintenance and Repair..............................................................................................121
5.1 Daily Maintenance......................................................................................................121
5.2 Troubleshooting..........................................................................................................122
5.3 Repair ........................................................................................................................122
5.3.1 Key Components..............................................................................................122
5.3.2 Charging and Discharging of Refrigerant..........................................................124

Product
1
Product
1. Product Data
1.1 Lineup
1.1.1 Main Unit
Series
Model
Product Code
Cooling
Capacity
(kW)
Heating
Capacity
(kW)
Power
Supply
Refrigerant
Appearance
VERSATI
Ⅱ
GRS-CQ8
.0Pd/NaE-
K
ER01001300
7.8
8
220-240V
,~,50Hz
R410A
GRS-CQ1
0Pd/NaE-
K
ER01001290
8.2
10
GRS-CQ1
2Pd/NaE-
K
ER01001280
12.5
12
220-240V
,~,50Hz
GRS-CQ1
4Pd/NaE-
K
ER01001270
13.5
14
GRS-CQ1
6Pd/NaE-
K
ER01001260
14.5
15.5
GRS-CQ1
2Pd/NaE-
M
ER01001250
13.5
12
380-415V,3
N~,50Hz
GRS-CQ1
4Pd/NaE-
M
ER01001240
14.5
14
GRS-CQ1
6Pd/NaE-
M
ER01001230
15
15.5

Product
2
1.1.2 Water Tank
Model
Product Code
Nominal Cubage(L)
Appearance
SXVD200LCJ/A-K
ER20000160
200
SXVD200LCJ/A-M
ER20000240
200
SXVD300LCJ/A-K
ER20000180
300
SXVD300LCJ/A-M
ER20000250
300
SXVD200LCJ2/A-K
ER20000170
200
SXVD200LCJ2/A-M
ER20000260
200
SXVD300LCJ2/A-K
ER20000190
300
SXVD300LCJ2/A-M
ER20000270
300
1.2 Nomenclature
1.2.1 Main Unit
G
RS
-
C
Q
16
Pd
/
Na
E
-
M
(O)
1
2
3
4
5
6
7
8
9
10
NO.
Description
Options
1
GREE
G-GREE Air to water heat pump
2
Heat Pump Water Heater
RS
3
Heating Mode
S= Static; C=Circulating
4
Function
Q=Multi-function; Omit=Single-function
5
Nominal Heating Capacity
6.0=6.0kW; 8.0=8.0kW;10=10kW; 12=12kW; 14=14kW; 16=16kW
6
Compressor Style
Pd=DC Inverter; Omit=On/Off
7
Refrigerant
Na=R410A
8
Design Serial Number
B,C,D......
9
Power Supply
K=220-240V,~,50Hz; M=380-415V,3N~,50Hz;H=380V,3N~,60Hz
10
Indoor and Outdoor Unit
Code
I=Indoor unit; O=Outdoor unit
1.2.2 Water Tank
SX
V
D
200
L
C
J2
/
A
-
K
1
2
3
4
5
6
7
8
9
NO.
Description
Options
1
Symbol of Heat Pump Water Tank
SX
2
Tank Type
Default-Common heat pump water tank;
V-Heat pump water tank for multi VRF system

Product
3
3
Function Code
Default-No electric heating function;
D-Electric heating function available
4
Nominal Water Tank Volume
200=200L,300=300L
5
Structure Type
B-Wall mounted type; L-Floor standing type
6
Bearing
Default-Non-bearing water tank;
C-Bearing water tank
7
Type of Heat Exchange Tube
Default-No heat exchanger;
J-Inner coil static heating(J-Single coil; J2-Double coils);
JW-Outer coil static heating
8
Serial Number
A,B,C……
9
Power Supply
K=220-240V,~,50Hz; M=380-415V,3N~,50Hz; H=380V,3N~,60Hz
1.3 Product Features
1.3.1 General
GREE air to water heat pump is a completely flexible, energy efficient home heating system that
extracts the heat from the outside air, raises this heat to a higher temperature and then distribute
swarmth around the home using under-floor heating, radiators or fan convector heat emitters.
1.3.2 Features
Wide Operation Range
Heating: -22~35°C; Cooling: 10~48°C; Water Heating: -22~45°C.
High-efficiency Component(Inverter pump, Inverter fan, Plate heat exchanger)
1. The A-class high-efficiency inverter water pump which complies with the European Erp directive,
can control the running frequency based on the actual load. Therefore, it can enhance the operation
effcieicy and control the water temperature more accurately.
2. The DC inverter fan can control the air volume accuratately and make the system run more stably
and save more energy.
3. The high-efficiency plate heat exchanger will improve the unit’s performance largely at a low price.
All-in-one Design
1. The unit can integrate with terminal units, like the radiator, floor heating device, FCU, water
heating device, solar kit, gas furnace and swimming pool etc. Versatile functions can meet various kinds
of demands from different users and enhance applicability of this product.
2. The all-in-one structure design can save more installation cost, reduce risks of refrigerant leak,
and improve safety and reliability of the system.
Brand-new Controller
1. White appearance, exquisite design, and the wall-mounted design will facilitate installation.

Product
4
2. The dot-matrix display can show in both English and Chinese to show information in a more direct
and convenient way.
3. The six-lattice display pattern will accommodate more information.
4. The 12V JACK interface can supply power to the control separately and lengthen the
communication distance.
5. The remote monitoring interface can monitor the unit through the Mobus interface and be
integrated into the BMS system.
Smart Control, Powerful Function
1. The running mode can be switched freely. Furthermore, based on different demands, the holiday
mode, environment-dependent mode, quite timer, temperature timer and floor commissioning can
activated.
2. Multiple protections can make this product much safer. The added electric heater will prevent the
plate heat exchanger from being frostbitten owing to too low water temperature and resultantly extend
the service life of the product and enhance its safety and reliability.
3. The newly developed smart defrosting control program, “do defrost when necessary; do not
defrost when unnecessary; defrost more when it frosts heavily; defrost less when it frosts lightly”, can
bring more comfortability, avoid inadequacy of heat supply and ensure sustainable heat supply for the
users.
1.4 Operating Principle
1.4.1 Schematic Diagram

Product
5
No.
Name
No.
Name
No.
Name
1
Compressor
18
Liquid Temperature
Sensor of the PHE
35
Water Tank
2
Discharge Temperature
Sensor
19
Gas Temperature Sensor
of the PHE
36
Leaving Water Temperature
Sensor of the Solar System
3
High Pressure Switch
20
Plate-type Exchanger
37
Flow Switch for the Solar
System
4
Pressure Sensor
21
Leaving Water
Temperature
of the PHE
38
Water Pump for the Solar
System
5
4-way Valve
22
Entering Water
Temperature
of the PHE
39
Solar Panel
6
Finned Exchanger
23
Automatic Exhaust Valve
40
Solar Panel Temperature Sensor
7
Environment Temperature
Sensor
24
Electric Heater
41
Entering Water Temperature
for the Solar System
8
Defrosting Temperature
Sensor
25
Safety Valve
42
Water Knockout Vessel
9
Filter
26
Expansion Tank
43
Electric 2-way Valve 1
10
Electrostatic Expansion
Valve
27
Leaving Water
Temperature
of the Electric Heate
44
Floor Radiator
11
Filter
28
Water Pump
45
Water Collector
12
Liquid Valve
29
Flow Switch
46
FCU
13
Gas Valve
30
Leaving Water Pipe
Connector
47
Pressure Differential Bypass
Valve
14
Filter
31
Entering Water Pipe
Connector
48
Water Tank Temperature
Sensor 2
15
Vapor-liquid Separator
32
Water Filter
49
Liquid Valve Connector
16
Suction Temperature Sensor
33
Electric 3-way Valve 2
50
Gas Valve Connector
17
Pressure Sensor
34
Water Tank Temperature
Sensor 1
1.5 Technical Data
1.5.1 Parameter List
Model
GRS-CQ8.0Pd/NaE-K
GRS-CQ10Pd/NaE-K
Product Code
ER01001300
ER01001290
Capacity*1
Cooling(floor cooling)
kW
7.8
8.2
Heating(floor heating)
kW
8
10

Product
6
Power Input*1
Cooling(floor cooling)
kW
1.95
2.1
Heating(floor heating)
kW
1.778
2.273
EER*1(floor cooling)
W/W
3.9
4.0
COP*1(floor heating)
W/W
4.4
4.5
Capacity*2
Cooling(for Fan coil)
kW
6.3
7.2
Heating(Fan coil or Radiator)
kW
7.6
9.5
Power Input*2
Cooling(for Fan coil)
kW
2.33
2.77
Heating(Fan coil or Radiator)
kW
2.24
2.88
EER*2(for Fan coil)
W/W
2.6
2.7
COP*2(Fan coil or Radiator)
W/W
3.3
3.4
Refrigerant charge volume
kg
2.3
2.3
Sanitary water Temperature
℃
40~80
40~80
Outdoor Unit Model
GRS-CQ8.0Pd/NaE-K(O)
GRS-CQ10Pd/NaE-K(O)
Outdoor Unit Product Code
ER010W1300
ER010W1290
Sound
Pressure
Level
cooling
dB(A)
54
54
heating
dB(A)
56
56
Dimensions
(W×D×H)
Outline
mm
980×427×788
Packaged
mm
1097×862×477
Net weight/Gross weight
kg
80/85
Indoor Unit Model
GRS-CQ8.0Pd/NaE-K(I)
GRS-CQ10Pd/NaE-K(I)
Indoor Unit Product Code
ER010N1300
ER010N1290
Sound
Pressure
Level
cooling
dB(A)
31
31
heating
dB(A)
31
31
Dimensions
(W×D×H)
Outline
mm
981×324×500
Packaged
mm
1043×395×608
Net weight/Gross weight
kg
56/65
Notes
“*1” indicates the capacity and power input are tested based on the conditions below:
①Cooling
Indoor Water Temperature: 23°C/18°C; Outdoor Temperature: 35°CDB/24°CWB
②Heating
Indoor Water Temperature: 30°C/35°C; Outdoor Temperature: 7°CDB/6°CWB
“*2” indicates the capacity and power input are tested based on the conditions below:
①Cooling
Indoor Water Temperature: 12°C/7°C; Outdoor Temperature: 35°CDB/24°CWB
②Heating
Indoor Water Temperature: 40°C/45°C; Outdoor Temperature: 7°CDB/6°CWB
Model
GRS-CQ12Pd/NaE-K
GRS-CQ14Pd/NaE-K
GRS-CQ16Pd/NaE-K
Product Code
ER01001280
ER01001270
ER01001260
Capacity*1
Cooling(floor
cooling)
kW
12.5
13.5
14.5
Heating(floor
kW
12
14
15.5

Product
7
heating)
Power
Input*1
Cooling(floor
cooling)
kW
3
3.4
3.8
Heating(floor
heating)
kW
2.8
3.3
3.75
EER*1(floor cooling)
W/W
4.2
4
3.8
COP*1(floor heating)
W/W
4.3
4.2
4.1
Capacity*2
Cooling(for Fan
coil)
kW
8.5
9
9.5
Heating(Fan coil
or Radiator)
kW
11.5
12.5
14.5
Power
Input*2
Cooling(for Fan
coil)
kW
2.7
3
3.3
Heating(Fan coil
or Radiator)
kW
3.4
3.8
4.5
EER*2(for Fan coil)
W/W
3.1
3
2.9
COP*2(Fan coil or Radiator)
W/W
3.35
3.3
3.2
Refrigerant charge volume
Kg
3.6
3.6
3.6
Sanitary water Temperature
℃
40~80
40~80
40~80
Outdoor Unit Model
GRS-CQ12Pd/NaE-K(O)
GRS-CQ14Pd/NaE-K(O)
GRS-CQ16Pd/NaE-K(O)
Outdoor Unit Product Code
ER010W1280
ER010W1270
ER010W1260
Sound
Pressure
Level
cooling
dB(A)
56
56
56
heating
dB(A)
58
58
58
Dimensions
(W×D×H)
Outline
mm
900×412×1345
Packaged
mm
998×458×1515
Net weight/Gross weight
kg
107/117
Indoor Unit Model
GRS-CQ12Pd/NaE-K(I)
GRS-CQ14Pd/NaE- K(I)
GRS-CQ16Pd/NaE- K(I)
Indoor Unit Product Code
ER010N1280
ER010N1270
ER010N1260
Sound
Pressure
Level
cooling
dB(A)
31
31
31
heating
dB(A)
31
31
31
Dimensions
(W×D×H)
Outline
mm
981×324×500
Packaged
mm
1043×395×608
Net weight/Gross weight
kg
57/66
Notes
“*1” indicates the capacity and power input are tested based on the conditions below:
①Cooling
Indoor Water Temperature: 23°C/18°C; Outdoor Temperature: 35°CDB/24°CWB
②Heating
Indoor Water Temperature: 30°C/35°C; Outdoor Temperature: 7°CDB/6°CWB
“*2” indicates the capacity and power input are tested based on the conditions below:
①Cooling
Indoor Water Temperature: 12°C/7°C; Outdoor Temperature: 35°CDB/24°CWB

Product
8
②Heating
Indoor Water Temperature: 40°C/45°C; Outdoor Temperature: 7°CDB/6°CWB
Model
GRS-CQ12Pd/NaE-M
GRS-CQ14Pd/NaE-M
GRS-CQ16Pd/NaE-M
Product Code
ER01001250
ER01001240
ER01001230
Capacity*1
Cooling(floor
cooling)
kW
13.5
14.5
15
Heating(floor
heating)
kW
12
14
15.5
Power
Input*1
Cooling(floor
cooling)
kW
3.55
3.95
4.2
Heating(floor
heating)
kW
2.8
3.35
3.85
EER*1(floor cooling)
W/W
3.8
3.7
3.6
COP*1(floor heating)
W/W
4.3
4.2
4.05
Capacity*2
Cooling(for Fan
coil)
kW
10
10.5
11
Heating(Fan
coil or Radiator)
kW
12
13.5
14
Power
Input*2
Cooling(for Fan
coil)
kW
3.35
3.6
3.8
Heating(Fan
coil or Radiator)
kW
3.55
4.05
4.25
EER*2(for Fan coil)
W/W
3
2.95
2.9
COP*2(Fan coil or Radiator)
W/W
3.4
3.35
3.3
Refrigerant charge volume
Kg
3.6
3.6
3.6
Sanitary water Temperature
℃
40~80
40~80
40~80
Outdoor Unit Model
GRS-CQ12Pd/NaE-M(O)
GRS-CQ14Pd/NaE-M(O)
GRS-CQ16Pd/NaE-M(O)
Outdoor Unit Product Code
ER01001250
ER01001240
ER01001230
Sound
Pressure
Level
cooling
dB(A)
55
55
55
heating
dB(A)
57
57
57
Dimensions
(W×D×H)
Outline
mm
900×1345×412
Packaged
mm
998×1515×458
Net weight/Gross weight
kg
114/124
Indoor Unit Model
GRS-CQ12Pd/NaE-M(I)
GRS-CQ14Pd/NaE- M(I)
GRS-CQ16Pd/NaE- M(I)
Indoor Unit Product Code
ER01001250
ER01001240
ER01001230
Sound
Pressure
Level
cooling
dB(A)
31
31
31
heating
dB(A)
31
31
31
Dimensions
(W×D×H)
Outline
mm
981×324×500
Packaged
mm
1043×395×608
Net weight/Gross weight
kg
58/67
Notes
“*1” indicates the capacity and power input are tested based on the conditions below:

Product
9
①Cooling
Indoor Water Temperature: 23°C/18°C; Outdoor Temperature: 35°CDB/24°CWB
②Heating
Indoor Water Temperature: 30°C/35°C; Outdoor Temperature: 7°CDB/6°CWB
“*2” indicates the capacity and power input are tested based on the conditions below:
①Cooling
Indoor Water Temperature: 12°C/7°C; Outdoor Temperature: 35°CDB/24°CWB
②Heating
Indoor Water Temperature: 40°C/45°C; Outdoor Temperature: 7°CDB/6°CWB
1.5.2 Nominal Working Conditions
Item
Water Side
Air side
Entering Water Temp
(°C)
Leaving Water
Temperature (°C)
Dry Bulb
Temperature (°C)
Wet Bulb
Temperature (°C)
Floor Heating
30
35
7
6
FCU Heating
40
45
7
6
Floor Cooling
23
18
35
—
FCU Cooling
12
7
35
—
Water Heating
10
50
7
6
1.5.3 Operation Range
Item
Water Side
Air side
Leaving Water Temperature (°C)
Environment Dry Bulb Temperature (°C)
Cooling
7～25
10~48
Heating
25～55
-22~35
Water Heating
40~80 (Water Tank Temperature)
-22~45
Note: when operating conditions are out of the range listed above, please contact GREE.
1.5.4 Electric Data
Model
Power Supply
Leakage Switch
Minimum Sectional
Area of Earth Wire
Minimum Sectional
Area of Power
Supply Wire
V,Ph,Hz
(A)
(mm2)
(mm2)
GRS-CQ8.0Pd/NaE-K(O
)
220-240V,~,50Hz
25
3.3
2×3.3
GRS-CQ10Pd/NaE-K(O)
25
3.3
2×3.3
GRS-CQ8.0Pd/NaE-K(I)
50
13.3
2×13.3
GRS-CQ10Pd/NaE-K(I)
50
13.3
2×13.3
GRS-CQ12Pd/NaE-K(O)
35
8.4
2×8.4
GRS-CQ14Pd/NaE-K(O)
35
8.4
2×8.4
GRS-CQ16Pd/NaE-K(O)
35
8.4
2×8.4
GRS-CQ12Pd/NaE-K(I)
50
13.3
2×13.3
GRS-CQ14Pd/NaE-K(I)
50
13.3
2×13.3
GRS-CQ16Pd/NaE-K(I)
50
13.3
2×13.3
GRS-CQ12Pd/NaE-M(O)
380-415V,3N~,50Hz
25
3.3
4×3.3

Product
10
GRS-CQ14Pd/NaE-M(O)
25
3.3
4×3.3
GRS-CQ16Pd/NaE-M(O)
25
3.3
4×3.3
GRS-CQ12Pd/NaE-M(I)
20
3.3
4×3.3
GRS-CQ14Pd/NaE-M(I)
20
3.3
4×3.3
GRS-CQ16Pd/NaE-M(I)
20
3.3
4×3.3
Notes
①Leakage Switch is necessary for additional installation. If circuit breakers with leakage
protection are in use, action response time must be less than 0.1 second, leakage circuit must
be 30mA.
②The above selected power cable diameters are determined based on assumption of distance
from the distribution cabinet to the unit less than 75m. If cables are laid out in a distance of 75m
to 150m, diameter of power cable must be increased to a further grade.
③The power supply must be of rated voltage of the unit and special electrical line for
air-conditioning.
④All electrical installation shall be carried out by professional technicians in accordance with the
local laws and regulations.
⑤Ensure safe grounding and the grounding wire shall be connected with the special grounding
equipment of the building and must be installed by professional technicians.
⑥The specifications of the breaker and power cable listed in the table above are determined
based on the maximum power (maximum amps) of the unit.
⑦The specifications of the power cable listed in the table above are applied to the
conduit-guarded multi-wire copper cable (like, YJV XLPE insulated power cable) used at 40°C
and resistible to 90°C(see IEC 60364-5-52). If the working condition changes, they should be
modified according to the related national standard.
⑧The specifications of the breaker listed in the table above are applied to the breaker with the
working temperature at 40°C. If the working condition changes, they should be modified
according to the related national standard.
1.5.5 Capacity Correction
Cooling Capacity Correction
GRS-CQ8.0Pd/NaE-K,GRS-CQ10Pd/NaE-K,GRS-CQ12Pd/NaE-K,GRS-CQ14Pd/NaE-K,
GRS-CQ16Pd/NaE-K,GRS-CQ12Pd/NaE-M,GRS-CQ14Pd/NaE-M,GRS-CQ16Pd/NaE-M.
Performance correction
Leaving Chilled Water ℃(℉)
Ambient Temperature ℃(℉)
25(77)
30(86)
35(95)
40(104)
45(113)
5(41.0)
0.995
0.955
0.905
0.855
0.805
6(42.8)
1.045
1.005
0.955
0.905
0.855
7(44.6)
1.090
1.050
1.000
0.950
0.900
8(46.4)
1.145
1.102
1.052
1.000
0.950
9(48.2)
1.190
1.150
1.100
1.050
1.002
10(50.0)
1.245
1.200
1.150
1.100
1.050
11(51.8)
1.290
1.250
1.202
1.152
1.102
12(53.6)
1.340
1.300
1.252
1.200
1.152
13(55.4)
1.390
1.350
1.302
1.252
1.202

Product
11
14(57.2)
1.442
1.402
1.350
1.302
1.252
15(59.0)
1.490
1.450
1.400
1.350
1.302
18(64.4)
1.539
1.502
1.451
1.402
1.350
Computer of actual cooling capacity: actual cooling capacity = nominal cooling capacity x cooling
capacity correction coefficient.
Heating Capacity Correction
GRS-CQ8.0Pd/NaE-K,GRS-CQ10Pd/NaE-K,GRS-CQ12Pd/NaE-K,GRS-CQ14Pd/NaE-K,
GRS-CQ16Pd/NaE-K,GRS-CQ12Pd/NaE-M,GRS-CQ14Pd/NaE-M,GRS-CQ16Pd/NaE-M.
Performance Correction
Outflow
Heated
Water ℃(℉)
Ambient Temperature ℃(℉)
-15(5)
-10(14)
-5(23)
0(32)
5(41.0)
10(50)
15(59.0)
20(68.0)
25(77.4)
30(86)
0.81
0.91
1.00
1.10
1.18
1.26
1.35
1.41
1.45
35(95)
0.74
0.84
0.93
1.03
1.11
1.19
1.28
1.36
1.41
40(104)
0.67
0.77
0.87
0.96
1.04
1.12
1.20
1.25
1.31
45(113)
0.60
0.70
0.80
0.89
0.97
1.05
1.13
1.19
1.25
50(122)
0.53
0.63
0.73
0.82
0.90
0.98
1.06
1.11
1.18
55(131)
0.46
0.56
0.66
0.74
0.83
0.90
0.98
1.05
1.10
Computer of actual heating capacity: actual heating capacity = nominal heating capacity x heating
capacity correction coefficient.
2 Outline Dimensions
2.1 Outline dimensions of outdoor unit
GRS-CQ8.0Pd/NaE-K(O), GRS-CQ10Pd/NaE-K(O)

Product
12
GRS-CQ12Pd/NaE-K(O), GRS-CQ14Pd/NaE-K(O) , GRS-CQ16Pd/NaE-K(O)
GRS-CQ12Pd/NaE-M(O), GRS-CQ14Pd/NaE-M(O) , GRS-CQ16Pd/NaE-M(O)

Product
13
2.2 Outline dimensions of indoor unit
GRS-CQ8.0Pd/NaE-K(I), GRS-CQ10Pd/NaE-K(I)

Product
14
GRS-CQ12Pd/NaE-K(I), GRS-CQ14Pd/NaE-K(I) , GRS-CQ16Pd/NaE-K(I)
GRS-CQ12Pd/NaE-M(I), GRS-CQ14Pd/NaE-M(I) , GRS-CQ16Pd/NaE-M(I)
3 Explosive Views and Part Lists
(1) GRS-CQ8.0Pd/NaE-K(I), GRS-CQ10Pd/NaE-K(I)

Product
15
Parts List of GRS-CQ8.0Pd/NaE-K(I) for ER010N1300, GRS-CQ10Pd/NaE-K(I)for ER010N1290.
No.
Name of part
Part Code
Quantity
1
Display Board
30292000047
1
2
Temp Sensor Sleeving
05212423
5
3
Water Pressure Gauge
49028009
1
4
Electric Box Assy
100002000198
1
5
Strainer
07412808
1
6
Plate-type Heat Exchanger
00902812
1
7
Expansion Drum
07422800004
1
8
Steam current Switch sub- Assy
45028062
1
9
Water Pump
812007000002
1
10
Electric Heater
32112800005
1
11
Relief Valve
07382814
1