Gree GRS-1.5/D150ANbA-K, Service Manual

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GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
3
2 NOMENCLATURE
GRS - 1.5 / T D 200 A Nb A - K
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
No. Description Options
1 Product code GRS
—heat pump water heater
2 Heating capacity code Nominal heating capacity (Unit: kW)
3 Compressor system Null for single compressor; S
—two compressors
4 Functions 1
P
— inverter; Pd—DC inverter; M—modular for fixed speed; PM—AC
inverter modular; PdM
—DC inverter modular; Null for fixed speed
5 Functions 2 Null for general; Re
—Low temp heat pump
6 Material of water tank Null for stainless steel; T
—Porcelain enamel
7 Function code Null for no electric heating function; D
—with electric heating function
8 Water tank capacity Capacity of water tank; Unit:
（
L
）
9 Design code
A
—LCJW: floor standing type; outer coil pipe static heating type;
B
—BCJW: wall-mounted type; outer coil pipe static heating type;
C
—LCJ: floor standing type; built-in coil pipe static heating type;
D
—BCJ: wall-mounted type; built-in coil pipe static heating type;
10 Water tank shape Null for rotundity; F
—squareness
11 Inner tank number Null for one inner tank; 2
—two inner tank
12 Refrigerant Null for R22; R407c
—N; R410A—Na; R134a—Nb; R417A—Ne
13 Design Serial number A, B,
C…or A1, A2…, B1, B2…
14 Cycle function H
—cycle function; Null for no cycle function
15 Power supply code
M
—380-415V 3PH~50Hz; K—220V-240V 1PH~50Hz;
D
—220V-240V 1PH~60Hz; …
3 FUNCTION
No. Name Function
1 Compressor
Increases pressure for the refrigerant and provides driving force for
circular flow of the refrigerant as a main driving component.
2 Four-way valve
Reverses flow direction of the refrigerant when the system
switches between the normal heat up mode and defrosting mode.
3 Water tank
Provides heat exchange channel for refrigerant and water and
stores hot water for daily use.
4
Electronic expansion
valve Speeds up high-pressure and high-temperature refrigerant and
reduces pressure and adjusts the circulation amount of coolant.
5
Finned tube
exchanger
Provides heat exchange channel for refrigerant and air.
6 Fan motor
Enhances heat exchange on the air side of the finned tube
exchange and provides a low-temperature heat source
continuously.
7 Filter
Filters impurities in refrigerant to protect components with small
diameter.