Technical information

CHECKING

LECTRICAL

ONNECTIONS

UGH024/1103 Portable Chillers

MAINTENANCE

5-7

Always refer to the wiring

diagrams you received with

your chiller to locate specif-

ic electrical components.

Be sure the main power is disconnected

and the chiller is locked out. Always disconnect and lock-

out the main power source before opening the unit for

servicing.

Open the electrical enclosure.

Inspect all wires and connections.

Look for loose wires, burned contacts, and signs of over-

heated wires. Compare the PLC wiring to the wiring dia-

grams you received with your chiller. Have a qualified

electrician make any necessary repairs or replacements.

Close the electrical enclosure door.

Inspect the exterior power cords.

Cords should not be crimped, exposed, or rubbing against

the frame. If the main power cord runs along the floor,

make sure it is positioned where it could not rest in pool-

ing water or could not be run over and cut by wheels or

casters.

WARNING: Electrical hazard

Before performing any work on this item, dis-

connect and lock out electrical power sources

to prevent injury from unexpected energization

or startup.

WARNING: Improper installation,

operation, or servicing may result in

equipment damage or personal injury.

This equipment should only be installed, adjust-

ed, and serviced by qualified technical person-

nel who are familiar with the construction, oper-

ation, and potential hazards of this type of

machine.

All wiring, disconnects, and fuses should be

installed by qualified electrical technicians in

accordance with electrical codes in your region.