icetro ID-0300-AN, Installation And Service Manual

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Recovery & Charging
Equipment
Service for Refrigerant Lines
(1) Refrigerant Recovery
When the right-side panel of the ice making unit is opened, there is an access valve on the low-pressure side of the
compressor, and the service valve is used for refrigerant recovery, filling, and system vacuum. The refrigerant should be
recovered in a safe container. Do not discharge into the atmosphere.
! Caution !
1. All parts and screws should be fixed securely before and after the equipment is serviced.
2. Since POE oil for R-404A refrigerant absorbs moisture from the air quickly, be careful to prevent water ingress when
replacing or repairing the system.
3. Always replace the filter drier when repairing the refrigeration system.
4. When replacing or repairing parts in the refrigeration system, make sure that the parts and copper piping are not “open” for
more than 15 minutes.
(2) Evacuation and Recharge [R-404A]
1.
Make sure to have manifold gauge, micron gauge, and vacuum pump. Ensure that the
manifold hose connected to the vacuum pump is securely connected to the valve on the
low-pressure side.
2.
Turn on the vacuum pump. Take care that oil does not flow back from the vacuum
pump.
3.
Vacuum until 500 microns is reached. Vacuum time will depend on the capacity
of the vacuum pump.
4.
Close the low-pressure valve on the manifold gauge.
5.
Remove the vacuum pump and connect the refrigerant cylinder. Please refer to the
product nameplate for the correct refrigerant charge.
6. Using a scale, weigh in the system charge with R404A liquid refrigerant.
7.
Disconnect manifold from the service valve of the system.
9.
Replace service valve cap.
Service
Port
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