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Gree GRS-CQ4.0Pd/NhG3-E

Gree GRS-CQ4.0Pd/NhG3-E
81 pages
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Contents
Safety Notices (Please be sure to abide ) ...................................................................1
1. Diagram of the Operating Principle .......................................................................10
2. Operating Principle of the Unit ............................................................................... 11
3. Nomenclature...........................................................................................................12
4. Installation Example .............................................................................................14
5. Main Components ..................................................................................................16
6. Installation Guideline of Monobloc Unit ................................................................16
6.1 Instruction to installation .................................................................................................16
6.2 Installation of monobloc unit ...........................................................................................17
7. Installation of Hydraulic Unit ..................................................................................20
7.1 Available external static pressure of outlet ......................................................................20
7.2 Ambient temperature and leaving water temperature upper limit ...................................21
7.3 Water volume and expansion vessel pressure ...............................................................22
7.4 The method of calculating the charging pressure of expansion vessel ..........................22
7.5 Selection of expansion vessel .........................................................................................23
8. Remote Air Temperature Sensor ............................................................................24
9. Thermostat ............................................................................................................... 25
10. 2-Way Valve ............................................................................................................ 26
11. 3-Way Valve ............................................................................................................ 26
12. Other Thermal ...................................................................................................... 27
13. Optional Electric Heater ........................................................................................28
14. Gate-controller .......................................................................................................29
15. Charging and Discharging of Refrigerant ........................................................... 29
16. Installation of Insulated Water Tank ...................................................................31
16.1 Installation measure ......................................................................................................31
16.2 Outline dimension and parameter of water tank ...........................................................32
16.3 Connection of waterway system ...................................................................................33
16.4 Requirements on water quality ....................................................................................35
16.5 Electric wiring work ......................................................................................................35
17. Wring Diagram .......................................................................................................37
17.1 Control board ................................................................................................................37
17.2 Electric wiring ................................................................................................................43
18. Commissioning......................................................................................................48
18.1 Check before startup .....................................................................................................48

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