JOHNSON CONTROLS
141
SECTION 7 – MAINTENANCE
FORM 155.30-ICOM2.EN.UL
ISSUE DATE: 12/21/2018
7
Refrigerant Pump Manual Stop
The refrigerant pump can be stopped manually for
maintenance purposes. It can be stopped even while
the chiller operates.
1. Navigate to the Control Panel Setting screen.
2. Press the Refrigerant Pump Stop button.
NOTE: After maintenance of the refriger-
ant pump is complete, be sure press the
Refrigerant Pump Auto button. Contin-
ued operation in the stop mode may cause
damage and failure of the chiller.
Purge Manual Stop and Start
The purge can be started or stopped manually.
1. Navigate to the Control Panel Setting screen.
LD20028a
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.
NOTE: After maintenance of the purge
system is complete, be sure to reset the
Manual Purge to Auto. Continued op-
eration in the manual mode may cause
damage and failure of the chiller.
6. Press the Purge Mode Auto button
LIFESPAN FOR VARIOUS PARTS
The replacement periods for some parts are shown be-
low. (The following periods are shown for reference
only. The replacement period may be changed accord-
ing to the actual environment, frequency of use, and so
on. Other parts may need to be replaced if used incor-
rectly.)
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