✐NOTE: In this diagram, the chiller’s panels are removed

for clarity.

C h e c k i n g t h e R e f r i g e r a n t C h a r g e

WARNING: Refrigerant hazard

Only certified refrigerant technicians should examine and correct problems involving the refrigerant circuit.

CAUTION: Always disconnect and lock out the main power sources before making electrical connections. Electrical connections should be made only by a qualified electrical technician.

All chillers are fully charged with R-134A refrigerant from Conair. Your chiller’s model nameplate identifies the type and amount of total refrigerant charge required.

Check the refrigerant charge while the chiller is running through the sight glass. Locate the sight glass by removing the left-side panel and using a flashlight, if necessary to check the sight glass:

❒Under full load conditions, the refrigerant should be clear (no bubbles).

❒Under low load conditions, when the Hot-gas Bypass valve is energized, bubbles may be visible in the sight glass. This is normal.

If the charge is low and the unit is under warranty, contact Conair service. Otherwise have a local, certified refrigeration technician add R-134A refrigerant to the system.

Sight glass

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