The AC drive provides thermal overload
protection for the drive motor. However, a
separate three-phase circuit breaker must be
installed for complete electrical overload
protection. This prevents damage to the motor
by disconnecting all legs if one should be lost
accidentally. Check the data plate on the back
of the washer-extractor or consult the
Electrical Specifications chart in this
subsection for circuit breaker requirements.
Do NOT use fuses in place of a circuit
Note:
breaker.
CAUTION
Do not use a phase adder on any variable-
speed machine.
The washer-extractor should be connected to
an individual branch circuit not shared with
lighting or other equipment.
The connection should be shielded in a liquid-
tight or approved flexible conduit with proper
conductors of correct size installed in
accordance with the National Electric Code or
other applicable codes. The connection must
be made by a qualified electrician using the
wiring diagram provided with the washer-
extractor, or according to accepted European
standards for CE-approved equipment.
F232051
Use wire sizes indicated in the Electrical
Specifications chart for runs up to 50 feet. Use
next larger size for runs of 50 to 100 feet. Use
2 sizes larger for runs greater than 100 feet.
For personal safety and for proper operation, the
washer-extractor must be grounded in
accordance with state and local codes. If such
codes are not available, grounding must
conform with the National Electric Code, article
250-95. The ground connection must be made
to a proven earth ground, not to conduit or
water pipes.
Do not connect the ground to the neutral
(N-white wire) leg at the terminal strip.
If a delta supply system is used, the high leg
may be connected to L1, L2, or L3 on the
UWPV models as all machines are equipped
with control transformers.
SW037
Installation
29