Sterlco Micro Series Water Temperature Control Unit - Manual (Page 18)

Page 18 MICRO Series Water Temperature Control Units
3-10 Making Electrical Connections
MICRO Series systems are designed for three-phase voltage operation. Refer to
the unit nameplate for proper voltage and amperage requirements.
Make sure you provide a correctly sized and protected supply of electrical
power to the unit.
Important!
Refer to National Electric Code (NEC) Article 430-24 through
430-26
for proper feeder conductor and supply disconnect sizing.
Maintain a safe ground and disconnect the power supply before servicing the
unit. A qualified electrician should make electrical connections, and disconnect
and lock out electricity using OSHA 29CFR 1910.147 standards when you need
a service call.
Check serial tag voltage and amperage requirements and make sure your
electrical service conforms before making any electrical connections. Total
running amps for MICRO Series systems are listed on the nameplate. Customer
connections can be run to the supply terminals from either side of the unit. Make
sure that all three phases are wired correctly. If not wired properly, the unit will
run backwards. Again, check the unit nameplate for correct voltage and
amperage.
!
DANGER
Improper electrical
connections
can damage the unit and cause
serious operator injury or
death!