U-Line Echelon 2075DWRR Service And Parts Manual Supplement page 34

2075DWRWC
The top and bottom valve can never be open at the same time. After initial startup whichever compartment
calls for cooling first, will have priority. Once the setpoint is achieved the other compartment will be
cooled if necessary.
When both compartments have reached setpoint and the compressor shuts off, the last bypass valve that
was open will remain open for four minutes. This is done to help the refrigerant pressures stabilize and
reduce hard starting of the compressor.
This unit can be put into a diagnostic mode.
1. Unplug unit
2. Install jumper on pins 9 and 10 on board.
3. Plug unit back in.
Based on the attached chart you can turn on and off each relay individually.
TOP
VALVE
BOTTOM
VALVE
POWER
TOP
LIGHT
BOTTOM
LIGHT
Control pot at 2 – bottom light
Control pot at 0 – top light
Control pot at -2 – bottom bypass valve
Jumper on 1/4" spade terminals – COMPRESSOR
Jump pins on J2 – TOP VALVE
Jump pins on J2 – CONDENSER FAN
POT
4
3
5
2
1
COND/GAS
COMPRESSOR
0
FAN
-1
-2
-3 -4 -5
POWER ON
26
Design Features Performance
TOP DRAWER
9 & 10 PINS
THERMISTOR
1 2 3 4 5 6 7 8 9 10
DISPLAY BOARD
CONNECTION
J2
1/4" SPADE
TERMINALS
BOTTOM DRAWER
THERMISTOR
CONDENSER
FAN
TOP
VALVE
CLRCO035C