Airwell AWAU-YDV1010-H13, Service Manual

Page: 117 / 187

115
②
Heating high pressure control
Target pressure Pd when heating Remarks
Long piping setting 30kg
Medium piping setting 28kg Factory default setting
Short piping setting 26kg
During heating, the operating frequency of compressor is fuzzy controlled based on target Pd.
The frequency of compressor goes down and Pd goes down; the frequency of compressor goes up and Pd goes
up.
[Note] For heating capacity, if the high pressure is higher, the capacity is higher. However, if the high pressure is
higher, the COP of unit will be lower.
15.3 Fan control
①
Control of MX7 series DC motor
The air supply speed of outdoor unit can be set from speed 0 to 15 in accordance with the operating mode.
The operating is commonly at speed 1 - 16, and it is CVT (Continuously Variable Transmission) control between
speed 1 and 15.
②
Air supply motor: range of number and rotating speed (unit: rpm)
Rotating Speed No. 12 - 14HP 16HP 18 - 24HP
1 OFF
2 OFF
3 OFF
4 160rpm
＊
2
5 190
＊
2
6 230
＊
2
7 280
＊
2
8 330
＊
2
9 400 / 400
10 400 / 500
11 520 / 660
12 680 / 680
13 800 / 880
14 880 / 960
Common used Max. value: 15 960 1080 1140
High static pressure: 16 1080 1140 1180