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UGH004/0999 microKool Portable Chillers
OPERATION 4-7
STOPPING THE
CHILLER
You must shut down the chiller whenever you:
● Change water or process hookups.
● Shut down the process machine.
● Run the unit’s diagnostic tests.
● Perform routine or preventative maintenance.
● See an alarm condition that requires troubleshooting.
● Relocate, ship or store the unit.
To shut down the unit:
Press .
Disconnect the power supply if you have shut
down to service or repair the chiller.
If you have shut down the chiller for relocation or storage,
drain all fluid from the unit; disconnect the power supply;
and disconnect all process and water connections. In ship-
ment or storage, the chiller can withstand an environment
between -40° F (-40° C) and 150° F (65° C) with 95% rela-
tive humidity non-condensing.
The microKool must be running to use this feature.
Press the button to turn on Pumpdown.
◆ The green Pumpdown light will flash, indicating the
feature is ready to start when needed.
◆ When Pumpdown is needed, the compressor runs
occasionally to pump refrigerant to the condenser.
When Pumpdown is running, the green light remains
on but does not flash.
Press the button again to turn off
Pumpdown.
WARNING: Electrical shock hazard
Before attempting maintenance of any kind
on the chiller, you must stop the unit; disconnect
and lockout the main power supply.
Stop
1
2
1
2
USING THE
PUMPDOWN
FEATURE
(PC-2 CONTROL ONLY)