Gree SXD200LCJW/C1-K, GRS-2.4/D270ANbA-K, GRS-S3.0G/NbA-K Service Manual
AIR SOURCE HEAT PUMP WATER
HEATER SERVICE MANUAL
T1/R134A/50Hz
(GC201510 - I)
Contents
PRODUCT
1 MODELS LIST
2 NOMENCLATURE
3 FUNCTION
4 PRODUCT PARAMETERS
5 W
ORKING PRINCIPLE
6 O
PTIONAL ACCESSORIES
CONTROL
1 U
NIT CONTROL
2 W
IRED CONTROLLER
3 Q
UERY PARAMETERS
4 O
PERATION INSTRUCTIONS
INSTALLATION
1 E
NGINEERING INSTALLATION FLOWCHART
2. P
REPARATIONS
3 I
NSTALLATION OF THE SPLIT TYPE UNIT OF WATER HEATER
4 I
NSTALLATION OF THE INTEGRAL TYPE UNIT OF WATER HEATER
5 R
EFRIGERANT PIPE DESIGN OF THE SPLIT TYPE UNIT
6 P
IPE INSTALLATION AND INSULATION
7. E
LECTRIC INSTALLATION
8. I
NSTALLATION OF COMMUNICATION SYSTEM
9. R
EFRIGERANT PERFUSION
10. C
HECK FOR ACCEPTANCE AFTER INSTALLATION
COMMISSIONING AND TRIAL RUN
1 C
OMMISSIONING FLOWCHART
2 P
RECAUTIONS ON SAFETY
3 P
REPARATIONS
4 C
OMMISSIONING AND TRIAL RUN
5 C
HECK BEFORE ACCEPTANCE
6 U
NIT FUNCTION SETTING
MAINTENANCE
1 F
AULT CODE
2 T
ROUBLESHOOTING
3 R
EPAIR OF KEY COMPONENTS
4 E
XPLODED VIEW AND PARTS LIST
UNIT MAINTENANCE
1. W
ATER REPLENISHMENT FOR THE WATER TANK
2. R
EGULAR CLEANING FOR THE WATER TANK
3. S
AFETY CHECK VALVE MAINTENANCE
4. M
AINTENANCE OF THE UNIT
ATTACHMENT: MAPPING TABLE OF THE TEMPERATURE SENSOR RESISTANCE AND
TEMPERATURE
AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
PRODUCT
1
AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
PRODUCT
1 MODELS LIST
Product type
Split type
- Model Product code
Water tank SXD200LCJW/C1-K ER20000320
Outdoor unit GRS-S3.0G/NbA-K ER02000130
Heating
capacity(W)
2800+1500
(electric
heating)
Outline diagram
Product type
Integral type
Notes:
The above table lists specifications of the air source water heater series product for static heat up.
The product standard is EN16147-2011, (EU) No 814/2013, EN 12102-2008.
Conditions for testing heating capacity of the unit: outdoor ambient temperature: 20 DB/15 WB;
Initial/ending water temperature in the water tank: 15 /55 .
For units with a water tank equipped with an electrical heater, that is, the water tank model of which
includes D , both the heat pump and electrical heater are started for heat up under low ambient
temperature or rapid mode.
If the product specification changes with product improvement, refer to the parameter specified on
the nameplate.
Model Product code
GRS-2.4/D270ANbA-K ER02100050
Heating
capacity(W)
2400+1500
(electric
heating)
Outline diagram
2
AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
coil pipe
coil pipe
in coil pipe
in coil pipe
2 NOMENCLATURE
2.1 Nomenclature of split type unit
G RS - S 3.0 G / Nb A - K
1 2 3 4 5 6 7 8
NO. Description Options
1 GREE G
2 Heat Pump Water Heater RS
3 Heating style S = Static, C = Circulating
4 Heating Capacity 2.8kW
5 Water Tank Capacity E=100L,F=150L,G=200L,H=250L
6 Refrigerant Nb = R134a, Default = R22
7 Design Serial Number A
8 Power style
2.2 Nomenclature of integral type unit
220-240V-1Ph 50Hz
G RS - 2.4 / D 270 A Nb A - K
1 2 3 4 5 6 7 8 9
NO. Description Options
1 GREE G
2 Heat Pump Water Heater RS
3 Heating Capacity 2.4kW
4
5 Water Tank Capacity 270L
6
7 Refrigerant Nb = R134a, Default = R22
8 Design Serial Number A
9 Power style
Function code
Design
code
Null for
D with electric heating function
A LCJW: floor standing type
static heating type
B BCJW: wall-mounted type;
static heating type
C LCJ: floor standing type
static heating type
D BCJ: wall-mounted type;
static heating type
220-240V-1Ph 50Hz
no electric heating function;
; outer
;
outer
;
; built-
;
built-
;
3 FUNCTION
No. Name Function
1 Compressor
2 Four-way valve
3 Water tank
4
Electronic
expansion valve
Increases pressure for the refrigerant and provides driving force for
circular flow of the refrigerant as a main driving component.
Reverses flow direction of the refrigerant when the system switches
between the normal heat up mode and defrosting mode.
Provides heat exchange channel for refrigerant and water and stores
hot water for daily use.
Speeds up high-pressure and high-temperature refrigerant and
reduces pressure and adjusts the circulation amount of coolant.
3
AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
5
6 Fan motor
7 Filter
Finned tube
exchanger
Provides heat exchange channel for refrigerant and air.
Enhances heat exchange on the air side of the finned tube exchange
and provides a low-temperature heat source continuously.
Filters impurities in refrigerant to protect components with small
diameter.
4 PRODUCT PARAMETERS
4.1 Product Parameters of Split type unit
4.1.1 Product Parameters of Outdoor Unit
Model GRS-S3.0G/NbA-K
Product code - ER02000130
Rated Heating Capacity(*) W 2800
Rated Input Power(*) W 700
COP(*) W/W 4.00
Load Profile - L
COP
Energy Efficiency Class(**) - A
(**)
W/W 2.90
DHW
Water Heating Energy Efficiency(**) - 110%
Annual electricity consumption
(average climate conditions)
Maximum Input Power W 1180+1500W (Electric Heater)
Outlet Water Temperature Default: 55 , 35 ~70
Power Supply - 220V-240V ~50Hz
Insulation Level -
Protection of Ingression -
Name R134a
Refrigerant
Charge kg 1.20
Outline Dimensions W x D x H mm
Package Dimensions W x D x H mm
Net Weight kg 35.5
Sound Power Level(***) dB(A) 61
Operating Range -7~45
kWh 878
PX4
Notes:
)
(*
Value obtained
)
(**
, as per EN16147, (EU)
No 814/2013.
)
(***
Value obtained as per EN 12102-2008.
Under fast water heating mode, electric heater helps to heating water.
Please always see the nameplate for the exact data as this table is subject to change.
4
AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
Size of Pipe
4.1.2 Parameters of the Water Tank
Coil water tank
Between
the Main
Unit and
Water Tank
Coolant
Product
Model
SXD200LCJW/C1-K ER20000
code
- L - W mm kg mm mm
320
Capacity
185
Supply to
E-heater
220V-240V
Power
~50Hz
Heating
Power of
E-heater
1500
Dimensio
545 x 545
x 1919
ns
Net
Weig
ht
52 DN15
Notes:
Type selection of water tank shall also be made based on local climatic conditions and opinions from
professionals.
For units with a water tank equipped with an electrical heater, that is, the water tank model of which
starts with SXD, both the heat pump and electrical heater are started for heat up under low ambient
temperature or rapid mode.
If the specification parameters change with product improvement, refer to the parameter specified
on the nameplate.
4.2 Product Parameters of Integral type unit
Model GRS-2.4/D270ANbA-K
Product code - ER02100050
Size of
Pipe at
the Water
Acquisitio
n Position
Rated Heating Capacity(*) W 2400
Rated Input Power(*) W 685
COP(*) W/W 3.50
Capacity L 270
Load Profile - XL
COP
(**)
W/W 2.58
DHW
Energy Efficiency Class(**) - A
Water Heating Energy Efficiency(**) - 105%
Annual electricity consumption
(average climate conditions)
kWh 1594
Maximum Input Power W 1300+1500W (Electric Heater)
Outlet Water Temperature Default: 55 , 35 ~70
Power Supply - 220V-240V ~50Hz
Insulation Level -
Protection of Ingression -
PX4
Name R134a
Refrigerant
Charge kg 1.10
Outline Dimensions W x D x H mm 660 67
Package Dimensions W x D x H mm
Net Weight kg 114
5
AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
Sound Power Level(***) dB(A) 58
Operating Range -7~45
Notes:
(*)
(1)
Value obtained with the following conditions: Outdoor temperature: 20 DB/15 WB; Water tank
temperature (start/end): 15 /55 .
(**)
(2)
Value obtained with an air temperature of 7 and a water inlet at 10 , as per EN16147-2011,
(EU) No 814-2013.
(
)
***
(3)
Value obtained indoor placement, with 2m long inlet and outlet wind duct, as per EN 12102-2008,
(EU) No 814-2013.
(4) The installation of suction and backflow conduits on the heat pump lessens its performance.
Under RAPID function, electric heater helps to heating water.
Please always see the nameplate for the exact data as this table is subject to change.
4.3 Work Temperature Range
GRS-S3.0G/NbA-K GRS-2.4/D270ANbA-K
Models
Heating -7~45 -7~45
Note: The above value range indicates the outdoor ambient temperate range for normal operation of
the unit. For details on the configurable range of water temperature, see the nameplate of the water
tank.
5 Working Principle
5.1 Brief Introduction to Working Principle
As the refrigerant has different phase-transition temperature under varied pressure, it enables the
heat pump to transfer heat of low-temperature heat source to the high-temperature heat source. The air
source water heater unit utilizes the heat pump to obtain heat from the ambient low-grade energy (air
source) via thermodynamic cycle by consuming partial electrical energy, and then delivers heat to the
water tank for heating up water.
5.2 Working Diagram
5.2.1 Working Diagram
Energy obtained for water heating Q3 = Input electric
energy Q1 + Heat absorbed from environment Q2
6
Loading...