Automatic method to purge non-condensable gas from
purging tank
This chiller has an automatic purge system. The vacuum pump starts and stops by detecting the
pressure inside the purge tank.
1. Set the valves in accordance with purge pattern D shown in Figure 69.
2. Press the Manual Purge
OFF
button.
3. Press the Purge Mode
AUTO
button.
4. The purge solenoid valves automatically open and close.
During the automatic purge operation, the vacuum pump starts when the purging tank pressure
increases to 60 mmHg Abs (8 kPa) and stops when it decreases to 30 mmHg Abs (kPa).
CAUTION
When the oil in the vacuum pump or belt is being replaced, or when maintenance work is being
performed while the absorption chiller is running, turn off the circuit breaker of the vacuum pump in
the control panel. Failure to do this can cause the vacuum pump to start abruptly and cause injury.
147
YHAU-C Single Effect Steam-Fired Absorption Chiller
Summary of Contents for York YHAU-C
Page 2: ......
Page 33: ...Figure 11 Location of rupture disk 31 YHAU C Single Effect Steam Fired Absorption Chiller...
Page 103: ...Figure 49 Cooling start diagram 101 YHAU C Single Effect Steam Fired Absorption Chiller...
Page 104: ...Figure 50 Cooling stop diagram YHAU C Single Effect Steam Fired Absorption Chiller 102...
Page 166: ...Figure 73 Steam and drain system YHAU C Single Effect Steam Fired Absorption Chiller 164...
Page 167: ...Figure 74 Duhring diagram PTX chart F 165 YHAU C Single Effect Steam Fired Absorption Chiller...
Page 168: ...Figure 75 Duhring diagram PTX chart C YHAU C Single Effect Steam Fired Absorption Chiller 166...
