JOHNSON CONTROLS
148
FORM 155.32-ICOM1.EN.GB
ISSUE DATE: 10/13/2017
SECTION 7 – MAINTENANCE
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 it to Auto.
Continued operation in the manual mode
may cause damage to and failure of the
chiller-heater.
6. Press the Purge Mode
Auto
button
LIFESPAN FOR VARIOUS PARTS
The replacement periods for some parts are shown
below. (The following periods are shown for refer-
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.
After maintenance of the refrigerant
pump is complete, be sure to reset it to
Auto. Continued operation in stop state
may cause damage to and failure of the
chiller-heater.
Purge Manual Start and Stop
The purge can be started or stopped manually.
1. Navigate to the Setting screen on the Control
Panel.
LD20138
2. Press the Purge Mode
Manual
button.
3. Press the Manual Purge
ON
button.
The purge solenoid valves open. The purge operation
begins.
