![](/images/new-backgrounds/1070556/70556173x1.webp)
Section 7 | Refrigeration System |
|
|
Refrigerant Recovery/Evacuation and Recharging
NORMAL
Do not purge refrigerant to the atmosphere. Capture refrigerant using recovery equipment. Follow the manufacturer’s recommendations.
SELF-CONTAINED RECOVERY/EVACUATION
1.Place the toggle switch in the OFF position.
2.Install manifold gauges, scale, and recovery unit or
MANIFOLD SET
Important
Manitowoc Ice, Inc. 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.
| OPEN | OPEN |
|
LOW SIDE | BACKSEATED | BACKSEATED | HIGH SIDE |
|
| ||
SERVICE |
|
| SERVICE |
VALVE |
|
| VALVE |
Important
Replace the liquid line drier before evacuating and recharging. Use only a Manitowoc (O.E.M.) liquid line filter drier to prevent voiding the warranty.
CONNECTIONS
Manifold gauge sets must utilize low loss fittings to comply with U.S. Government rules and regulations. Make these connections:
1.Suction side of the compressor through the suction service valve.
2.Discharge side of the compressor through the discharge service valve.
VACUUM PUMP/
RECOVERY UNIT
OPEN
CLOSED
SV1404A
Figure 7-8. Recovery/Evacuation Connections
3.Open (backseat) the high and low side ice machine service valves, and open high and low side on manifold gauges.
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.
5.Follow the Charging Procedures.
Part Number |