C h e c k i n g R e s e r v o i r L e v e l
WARNING: Electrical Hazard
Before performing any work on the chiller, disconnect and lock out electrical power sources to prevent injury from unexpected energization or startup. Be sure that power to the chiller is OFF when doing any maintenance on the chiller. Follow all safety rules when performing any maintenance on this equipment.
Check the coolant level in the reservoir. The coolant level in the sight glass on the back of the chiller should be 7/8 full.
To manually fill the reservoir:
1Disconnect and lockout power to the chiller.
2Locate the Fill/Drain valve on the back of the chiller. Open the Fill/Drain valve or coolant supply and fill the chiller to the 7/8 full level on the water level gauge. If the chiller is overfilled, the excess water spills out the vent tube. DO NOT OVERFILL.
3Refill the reservoir. Monitor the level using the water level indicator on the back of the chiller, ensuring you are adding the correct fluid for your application.
4Close the Fill/Drain valve.
5Check the coolant level. When the chiller is turned on the coolant level drops as it begins to circulate, filling the connected plumbing. Check the
coolant level on the back of the chiller. Make sure the coolant level is filled to the 7/8 full level on the water level gauge. Shut down the chiller and add more coolant, if needed.
6Disconnect water hose from Fill/Drain valve, if the chiller is to be used elsewhere.
Water level gauge 
Fill/drain port
5 e c n a n e t n i a M
M a i n t e n a n c e l 5 - 9