Electrical Power
WARNING: Make sure the main power switch is in the OFF position before connecting or disconnecting
electrical power from the unit. Follow all applicable electrical and safety codes and procedures when
connecting power to the unit. Electrical connections should be made by an authorized electrical installer.
WARNING:
Make certain that the electrical supply is the same voltage and frequency as your unit (see identification
label).
Make sure electrical connections comply with all applicable electrical codes.
Ground the Chiller in accordance with NEC Article 250.
Operating voltage must be within 10% of the data plate rating.
Phase imbalance must be below 5%.
WARNING: DO NOT apply power to the Chiller until the unit is ready for Startup
CAUTION: DO NOT apply power to the Chiller until the Reservoir has been filled. When Controller power
is turned ON, the pump automatically begins pumping. If the Reservoir has not been filled, the pump could
be damaged.
The Chiller is equipped with a phase monitor that prevents startup if phase sequence is incorrect. It will also turn
the Chiller OFF in the event of a loss of one phase and/or prevent Chiller operation if there is a voltage
mismatch between any two phases greater than 8%. Be sure to connect electrical lines in proper sequence, i.e.:
L1, L2, and L3.
There is a junction box on the rear of the unit to which you can connect the electrical power supply conduit. Be
sure to provide suitable conduit strain relief and grounding.
WARNING: DO NOT remove the ground wire while diagnosing any power supply problems.
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