RECEIVER –
The receiver is located behind the
condenser.
CRANKCASE PRESSURE
REGULATOR –
The GIM-6 employs a crankcase
pressure regulator in the suction line. The
CPR is set for 10 psi. The purpose of the
valve is to maintain a low suction pressure
on start-up so that the compressor will
start properly. On start-up, the valve will
hold the suction pres sure at the desired
setting until the suction pressure has
dropped below the s etting, then the valve
will open.
If it becomes necessary to check or
reset the setting, the case must be warm
such as after a defrost cycle or from an
initial warm cas e condition. Put a suction
compound gauge on the compressor suc-
tion valve, start the compress or. If the
press ure needs to be reduced turn the ad-
justment screw clockwise or, counter-
clockwise to raise the press ure. DO NOT
SET THE VALVE BASED ON THE
NAMEPLATE AMPERAGE RATING
AS THE PRESSURE SETTING WILL
BE TOO HIGH AND THE COMPRES-
SOR WILL NOT START PROPERLY.
TROUBLE SHOOT CHARTS
TROUBLE
PROBABLE CAUSE
SOLUTION
Compressor runs
continuously. Product too
warm
1. Short of refrigerant
1. Leak check, change drier,
evacuate and recharge
2. Inefficient compressor
2. Replace
3. Dirty condenser
3. Clean
High head pressure
1. Cabinet location too
warm
1. Relocate cabinet
2. Restricted condenser air
flow
2. Clean condenser to
remove air flow restriction
3. Defective condenser fan
motor
3. Replace
