Gree GRS-CQ8.0Pd/NaEK - Page 3

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