Nomenclature; Installation Example - Gree GRS-Cm18PdRe/NhA-M Owner's Manual

4 Nomenclature

GRS -
1 2
SN Description
1 Product code
2 Heating method
3 Functions
4 Heating capacity code
5 Inverter system
6 type of heat pump
7 Water tank mode
8 Climate condition
9 Refrigerant
10 Design number
11 Power supply
Model Line-Up
Model Name
GRS-Cm18PdRe/NhA-M
NOTES:
(1) 1Capacities and power inputs are based on the following conditions:
Indoor Water Temperature 30°C/35°C, Outdoor Air Temperature 7°C DB/6°C WB
(2) 2Capacities and power inputs are based on the following conditions:
Indoor Water Temperature 23°C/18°C, Outdoor Air Temperature 35°C DB/24°C WB
Operation Range
Mode
Hot water
Heating
Cooling

5 Installation Example

CASE 1: Connecting Under-floor Coil for Heating and Cooling
NOTES:
(1) In this diagram, under-floor coil represents the user's heating/cooling terminal. In actual
engineering, terminals are selected by the user.
(2) By pass valve must be installed to secure enough water flow rate, and by pass valve should be
installed at the collector.
3 4 5
GRS—Heat pump water heater
D—Direct heating; C—Circulating heating; S—Static heating;
Dm-Direct heating modular;
Cm- Circulating modular
Q—Multifunctional; Null for single function
Nominal heating capacity(Unit:kW)
Pd—DC inverter; Null for fixed speed
Re—Low-temperature heat pump; Null for Normal-temperature heat pump
E—100L;F—150L;G—200L;H—250L;Null in case of no water tank
Null for T1;T2-Low temp;T3-High temp
R22—Default;R407c—N;R410A—Na;R134a—Nb;R32—Nh;R417A—Ne
A,B,C...or A1,A2...,B1,B2...
Refer to QJ/GD23.00.004
Capacity
Heating1, kW
18.1
Heat Source Side Temperature (°C)
-30~45
-30~35
-10~48
6 7 8
Options
Heating2, kW
16.1
10
Air-to-water Heat Pump
/
9 10
Power supply
380-415V 3N~ 50Hz
User Side Temperature (°C)
30~55
25~60
5~25
-
11