AC/Air Conditioning System — 2. System Operation When Input False Signal Condition: Setting Temperature is at 25°C (77°F), page 41

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.