AEC TCU Series Open Reservoir Water Temperature Control Units - Manual (Page 26)

Open Resevoir Water Temperature Control Units Page 27
3-10 Making Electrical Connections
Open Resevoir water temperature control 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 TCU 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.
Improper electrical connections
can damage the unit and cause
serious operator injury or death!