Frick QUANTUM LX - Page 9

QUANTUM
™
LX CONDENSER/VESSEL CONTROL PANEL
MAINTENANCE
090.560-M (MAY 2016)
Page 9
POWER SUPPLY FOR THE CONDENSER/VESSEL PANEL
Power
Supply
DESCRIPTION
CAUTION! Measuring the power supply voltages require
the control power to be energized. Extreme care must be
observed when taking any readings, as 120 or 230 VAC
(depending on incoming system voltage) is present within
the power supply.
The Condenser/Vessel panel power supply is mounted on
the inside at the top of the panel, as shown at the bottom
of this page. A three-pin connector provides 120 or 230
VAC power to the supply, and a six-pin connector delivers
DC power out of the supply. These connections are of
a push-on multiple contact connector type. This power
supply is not adjustable.
AC Input
DC
Output
Power supply is located at the inside top of the Condenser/Vessle Panel
CONDENSER/VESSEL PANEL POWER
The Condenser/Vessel Panel utilizes the +5 VDC, +12
VDC and – 12 VDC voltages from its power supply. To
perform measurements on the power supply voltages, use
a reliable, calibrated Digital Volt Meter (DVM). The DVM
should be accurate to 1/100 of a volt DC. Turn the control
power switch to ON.
Measure the voltages on the power supply at the DC
output connector as shown below.
-12 RET RET +5 +5 +12
There are additionally two HOA (Hands Off Automatic)
boards installed, which allow for overriding the automatic
function of the control by allowing the user to manually
operate outputs.
The DC power/communications harness in this panel is
color-coded. This will make wire identication much eas-
ier. The coding is as follows:
• +5VDC - RED
• +12VDC - YELLOW
• -12VDC - PURPLE
• Common/Ground - BLACK
• +RX/TX - BLUE
• -RX/TX - BLUE w/WHITE stripe