Koolaire KDT0300A, Technician'S Handbook

Page: 105 / 152

Part Number STH063 9/17 105
RECOVERY AND RECHARGING PROCEDURES
Do not purge refrigerant to the atmosphere. Capture
refrigerant using recovery equipment. Follow the
manufacturer’s recommendations.
mportant
Koolaire assumes no responsibility for the use of
contaminated refrigerant. Damage resulting from
the use of contaminated refrigerant is the sole
responsibility of the servicing company.
mportant
Replace the liquid line drier before evacuating and
recharging. Use only a Koolaire (O.E.M.) liquid line
filter drier to prevent voiding the warranty.
CONNECTIONS
1. Suction side of the compressor through the suction
service valve.
2. Discharge side of the compressor through the
discharge service valve.
SELF-CONTAINED RECOVERY/EVACUATION
1. Cycle the toggle switch Off.
2. Install manifold gauge set and recovery unit or two-
stage vacuum pump.
3. Perform recovery or evacuation:
A. Recovery: Operate the recovery unit as directed
by the manufacturer’s instructions.
B. Evacuation prior to recharging: Pull the system
down to 500 microns. Then, allow the pump to
run for an additional half hour. Turn off the pump
and perform a standing vacuum leak check.