(1) Purge procedure
When the purge indication lamp on the control panel lights, start purging by
following the instructions below.
a) Turn on the purge pump on/off switch on the control panel, and operate the purge
pump for 10 minutes.
b) Open V1 and V2.
c)
Press "
▲
" key on the operation board once to indicate 17. purge tank pressure
(refer to section 3-5-3) and confirm whether the indicated value drops.
If it does not drop, follow the procedure e), f), and g), and contact Carrier
service agent.
d) Perform purging for 10 minutes. Even if the purge indication lamp stops lighting before 10
minutes have passed, please continue purging for 10 minutes. When the lamp does
not stop lighting, continue purging until the lamp stops lighting.
e) Close V1 and V2.
f) Turn off the purge pump on/off switch.
g) Check whether the valves are open/closed.
V1
Closed
V2
Closed
V3
Closed
Fig.4-1-1
V2
V1
V3
Purge pump
on-off switch
Purge indication
lamp(green)
Liquid trap
Purge pump
Purge tank
44
