18
START-UP AND OPERATION
NOTE: The servi
ces of a qualified Refrigeration
Service Mechanic should be employed in the
start-
up and commissioning of these systems.
SUPPLY MAY
EVEN DEATH.
After completing the installation, and before
energizing the power supply to the unit, the
following checks should be made -
Verify that the electrical supply to the unit
is of the correct voltage, and rated fo
sufficient amperage in accordance with
the nameplate values.
Verify that the low voltage wiring between
the unit and the thermostat is correct.
Verify that shipping bolt (on RSH units
only) has been removed
ces of a qualified Refrigeration
Service Mechanic should be employed in the
up and commissioning of these systems.
After completing the installation, and before
energizing the power supply to the unit, the
Verify that the electrical supply to the unit
is of the correct voltage, and rated fo
r
sufficient amperage in accordance with
Verify that the low voltage wiring between
the unit and the thermostat is correct.
Verify that shipping bolt (on RSH units
Confirm that the water piping is complete
and free of leaks
Check that the water flow rate is correct,
and adjust as necessary
Confirm that the blower wheel rotates
freely
All service access panels are in place and
properly secured
A room thermostat should be used to cycle the
unit on and off automa
maintain the room temperature at the set point of
the thermostat. The air circulating fan will cycle
on and off with the compressor. If desired, the
air circulating fan can be run continuously.
The units have a lock out
prevent the unit from cycling on the low pressure
cut out or the high pressure cut out. If either of
these safety devices open, the compressor will
not restart when the safety device resets.
system must be manually reset by de
t
he 24 volt power to unit, or turning the room t
stat to the “OFF” position then back to either
heating or cooling as required. The
microprocessor control will flash a fault code
indicating a high-pressure lock-
-IOM2 (0611)
Confirm that the water piping is complete
Check that the water flow rate is correct,
Confirm that the blower wheel rotates
All service access panels are in place and
A room thermostat should be used to cycle the
maintain the room temperature at the set point of
the thermostat. The air circulating fan will cycle
on and off with the compressor. If desired, the
air circulating fan can be run continuously.
that will
prevent the unit from cycling on the low pressure
cut out or the high pressure cut out. If either of
these safety devices open, the compressor will
not restart when the safety device resets.
The
system must be manually reset by de
-energizing
he 24 volt power to unit, or turning the room t
-
stat to the “OFF” position then back to either
heating or cooling as required. The
microprocessor control will flash a fault code
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