Service manual


GB
FUNCTION OF DUAL DC INVERTER TYPE
System Frame Drawing
Major Performance Index
a) Voltage of Po�er Supply: AC220V ±15%
b) Po�er of Controller: ≤15W
c) Output of Three-phase Frequency Conversion:
Wire Voltage: 70V-180V; Po�er: ≤5KW; Frequency: 10Hz-120Hz;
d) Precision of Temperature Control: ±1
o
C;
e) Applicable Environment
Temperature:-20-55
o
C Relative Humidity: ≤90%RH (No de�);
f) Conservation Environment
Temperature:-25-70
o
C Relative Humidity: ≤95%RH (No de�);
g) Executive Standard: GB/T7725-2004 & GB4706.32-2000.
Input & Output of Outdoor Controller
1. Outputs of one three-phase Frequency Conversion, t�o relays, one indicator led and
one communication signal:
1) Controlling the three-phase output of compressor
2) Controlling the output of outdoor motor
3) Controlling the output of 4-�ay valve
4) Controlling the output of communication signals of indoor unit
5) Controlling the output of expansion valve
2. Inputs of five analogue inputs (the temperature measuring points distributing as
Diagram 1, all the analogues go through digital filter for disposal), and t�o s�itch
signals and t�o communication signals:
a) Signal input of outdoor ambient temperature
b) Signal input of median temperature of outdoor coil
c) Signal input of discharge temperature of compressor
d) Signal input of suction temperature of compressor
e) Signal input of po�er supply voltage
f) over-heat protection signal of compressor
g) communication signal of indoor unit 1
h) communication signal of indoor unit 2
i) protection signal of outdoor IPM module