QUANTUM
™
LX CONDENSER/VESSEL CONTROL PANEL
MAINTENANCE
090.560-M (MAY 2016)
Page 19
ADJUSTMENT
Ensure that the meter is set to the proper range (DC, 0-50
V or equivalent), as well as observing proper wire polarity.
The power supply drawing shown on the following page
applies to all three power supplies. The adjustment access
hole for each supply is located on the lower left of the
front of the supplies. If an adjustment is required, use a
thin, Philips screwdriver, insert the tip into the access hole
for the appropriate voltage potentiometer (refer to the
diagram on the following page for adjustment location).
NOTE: Extreme care must be used when adjusting the
potentiometer. Adjustment should only be performed
by qualied personnel. The use of a non-conductive
device is recommended.
+ -
G N L
Adjustment
DC 120 VAC
or
240 VAC
+12 VDC Adjustment
Locate the DC power supply terminals. Place the
negative lead on - and the positive lead on +. Verify
that the DVM is displaying in the range of +12.10 to
+12.20.
If adjustment is required, locate the adjustment ac-
cess hole on the +12 VDC supply, as previously
shown. While watching the DVM, slowly rotate the
screwdriver blade clockwise to increase the voltage
or counter-clockwise to decrease until the voltage is
correctly adjusted.
POWER SUPPLY REPLACEMENT
If the power supply is found to be bad, or not capable of
acceptable adjustment, the failing supply will need replac-
ing. Refer to the Recommended Spare Parts list for the
appropriate part number.
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