C
HECKING
R
EFRIGERANT
C
HARGE
Series 1 Portable Chillers, PLC Control
UGH017/0500
3-8
I
NSTALLATION
All chillers are fully charged with refrigerant at the factory.
Your chiller’s model nameplate identifies the type and amount
of total refrigerant charge required.
Check refrigerant charge while the chiller is running. Check
the refrigerant charge through the site glass. For water-cooled
models open the side panel; for air-cooled models, locate the
site glass through the wire mesh side panel. Use a flashlight, if
necessary, and check the site glass:
●
Under full load conditions,
the refrigerant should be
clear (no bubbles).
●
Under low load conditions,
when the hot-gas bypass
valves are operating, bubbles may be visible in the
sight glass. This is normal.
If the charge is low contact Conair service or have a local, cer-
tified refrigeration technician add refrigerant to the system.
Sight
glass
WARNING: Refrigerant hazard
Only certified refrigerant technicians should
examine and correct problems involving the
refrigerant circuit.
If your Chiller is still under warranty you must
Contact Conair Service before contacting a con-
tractor to service your Chiller.
