WTR2-640
Chapter 3: Installation
17 of 46
3-3 Electrical Connections
These units are designed for three-phase voltage operation. Refer to the unit nameplate for
proper voltage and amperage requirements, and make sure your electrical service conforms.
Check the unit nameplate for correct voltage and amperage
before
making electrical
connections!
1.
Provide a correctly sized and protected power supply to the unit.
2.
If an electrical supply disconnect is not installed as a factory option, the customer is
responsible to properly size and install a suitable disconnect.
3.
Refer to National Electric Code (NEC) 430-24-26 for proper feed conductor and
supply disconnect sizing.
4.
Voltages must be within plus or minus ten percent (+ 10%S) of the nameplate rating.
5.
Maintain a safe ground and disconnect the power supply before servicing the unit.
A qualified electrician should make electrical connections and disconnect the electricity
when service calls are needed.
•
Locate disconnects in an easily accessible location. Operators should not
have to squeeze around the Upright unit to reach disconnects, especially in
case of emergency.
•
When running conduit whips to the Upright unit, make sure that whips are
routed away from hot piping.
Improper electrical connections can cause damage to the unit and cause serious operator
injury or death! Make sure that ALL electrical connections are made by a qualified
electrician, and that ALL connections are tight.
Make all electrical supply connections at the front of the unit. An access panel covers all
electrical connections. Run electrical connections to the supply terminals from either side of
the unit. Make sure that all three phases are wired correctly.
The pump runs backwards if not
wired properly.
3-4 Setup Procedures
This section provides the procedures necessary for configuring your portable hot oil
temperature control unit.
Configuration of your TCU includes connecting cooling, process and vent piping. We
recommend that you carry out these procedures in the order given here.
Before carrying out these procedures, install all equipment as described in this section.
Connecting Piping
Make sure that all external piping is properly sized t reduce external pressure drop as much as
possible. Do not install process or water supply/drain piping smaller than the fittings on the
unit. If the water supply piping is larger than unit fittings, reduce the pipe size at the unit.
