
AC–69
AIR CONDITIONING SYSTEM – TROUBLESHOOTING
Temperature Set Dial Circuit
CIRCUIT DESCRIPTION
When temperature set dial is turned, the voltage of TSET terminal will change. A/C amplifier searches for this change and controls the room temperature according to the temperature set.
WIRING DIAGRAM
A/C Control Assembly
A/C Amplifier
5 V
S5
H12 BR-W A13
10 2
TSET
H12 L-B A14
2 11
SG
H12 V-W A13
11 9
777
NO8885