Welbilt Koolaire KD0270A, Руководство техника, Страница: 110 / 136

110 Part Number STH047 Rev01 10/18
SELF-CONTAINED RECOVERY/EVACUATION
1. Place the toggle switch in the OFF position.
2. Install manifold gauge set, charging cylinder/scale,
and recovery unit or two-stage vacuum pump.
3. Open (backseat) the high and low side ice machine
service valves, and open high and low side on
manifold gauge set.
4. 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.
NOTE: Check for leaks using a halide or electronic leak
detector after charging the ice machine.
Follow the Charging Procedures below.
CHARGING PROCEDURES
Importar
The charge is critical on all Koolaire® ice machines.
Use a scale or a charging cylinder to ensure the proper
charge is installed.
1. Be sure the toggle switch is in the OFF position.
2. Close the vacuum pump valve, the low side service
valve, and the low side manifold gauge valve.
3. Open the high side manifold gauge valve, and
backseat the high side service valve.
4. Open the charging cylinder and add the proper
refrigerant charge (shown on nameplate) through the
discharge service valve.
5. Let the system “settle” for 2 to 3 minutes.
6. Place the toggle switch in the ICE position.