Sterlco Micro Series Water Temperature Control Unit - Manual (Page 35)

MICRO Series Water Temperature Control Units Page 35
Chapter 6: Unit Maintenance
!
CAUTION
Never attempt to service a unit until a qualified
electrician has opened and locked out the main
disconnect using OSHA 1910.147 standards.
The water supply should be turned off and
internal pressure should be relieved before you
remove panels.
All electrical connections must be done by a
qualified electrician.
!
WARNING
Disconnect all power to the unit, let the
unit cool down, and turn off the water
prior to any servicing.
Failure to do so can result in SERIOUS
INJURY OR DEATH!
6-1 Preventive Maintenance
Draining
Drain the unit thoroughly if you are taking it out of service for a long period of
time, or you expose it to freezing. Drain plugs are provided at the base of the
heater tank and at the base of the pump.
Periodic Checks
Every Six Months
Inspect all electrical connections for secure attachment and for safe and secure ground
connections. Inspect heater contactors for loose wire connections or large amounts of carbon
dust around contacts, as it may indicate the end of the life of the contactor. Inspect the power