JOHNSON CONTROLS
142
FORM 155.31-ICOM2.EN.UL
ISSUE DATE: 12/21/2018
SECTION 7 – MAINTENANCE
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.
After maintenance of the Refrigerant
Pump is complete, be sure to reset the
pump to Auto. Continued operation in
stop state may cause damage to and fail-
ure of the chiller.
Purge Manual Start and Stop
The purge can be started or stopped manually.
1. Navigate to the Control Panel Setting screen.
LD19933_UL
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.
After maintenance of the purge system is
complete, be sure to reset the purge valve
to Auto. Continued operation in stop state
may cause damage to and failure of the
chiller.
6. Press the Purge Mode
Auto
button.
LIFESPAN FOR VARIOUS PARTS
The replacement periods for some parts are shown
in the next table. The following life spans are shown
for reference only. (The replacement period may be
changed according to the actual environment, fre-
quency of use, or other contributing factors.) Other
parts may need to be replaced if used incorrectly.