SECTION 7 – MAINTENANCE
FORM 155.32-ICOM2.EN.UL
ISSUE DATE:1/10/2018
142
JOHNSON CONTROLS
REFRIGERANT PUMP MANUAL STOP
The refrigerant pump can be stopped manually for maintenance purposes. It can be
stopped even while the chiller-heater operates.
1. Navigate to the Setting screen on the Control Panel.
2. Press the Refrigerant Pump
Stop
button.
PURGE MANUAL START AND STOP
The purge can be started or stopped manually.
1. Navigate to the Setting screen on the Control Panel.
2. Press the Purge Mode
Manual
button.
3. Press the Manual Purge
ON
button.
The purge solenoid valves open. The purge operation begins.
4. Press the Manual Purge
OFF
button when the purge process is complete.
5. The solenoid valves close.
6. Press the Purge Mode
Auto
button.
NOTE: After maintenance of the refrigerant pump is complete, be sure to reset it to Au-
to. Continued operation in stop state may cause damage to and failure of the chiller-
heater.
NOTE: After maintenance of the Purge system is complete, be sure to reset the Purge
Mode to Auto. Continued operation in the manual mode may cause damage to and fail-
ure of the chiller-heater.
LD27811
