UGH017/0500
Series 1 Portable Chillers, PLC Control
M
AINTENANCE
5-11
Check refrigerant charge while the chiller is running:
Check the refrigerant charge through the site
glass.
Use a flashlight, if necessary, and check the liquid-line
sight 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 to add refrigerant to the system.
Sight
glass
C
HECKING THE
R
EFRIGERANT
C
HARGE
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.
WARNING: Refrigerant hazard
Only certified refrigerant technicians should
examine and correct problems involving the
refrigerant circuit.
