
AIR CONDITIONING SYSTEM — Amplifiers AC-41
2. System Operation When Input False Signal
Condition: Setting Temperature is at 25°C (77°F)
System Main Parts | False Signal | Motion
Air Mix Control Servo Motor | A | Air mix control servo motor shaft moves towards max. hot side.
| B | Air mix control servo motor shaft moves towards max. cool side.
Air Vent Mode Control Servo Motor | A | VENT: Close | BI-LEVEL: Close | HEAT: Open | DEF: Close
| B | VENT: Open | BI-LEVEL: Close | HEAT: Close | DEF: Close
Blower Motor | A | Blower motor rotates at high speed.
| B |
Water Valve | A | OPEN
| B | CLOSE
FRE/REC Control Servo Motor | FRE Switch ON | Fresh air is ventilated.
| REC Switch ON | Recirculation air is ventilated.
If necessary, replace the system amplifier.