Warmtec OP-50, User Manual

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i) Do not exceed the cylinder's maximum working pressure, even temporarily.
Equipment should be marked with a no ce that it has been taken out of service and emp ed of refrigerant.
The label should be dated and signed. Make sure there are labels on the unit indica ng that the unit
contains flammable refrigerant.
e) If vacuum is not possible, a manifold must be made to allow the removal of refrigerant from various
parts of the system.
11. REFRIGERANT RECOVERY
g) Start the recovery machine and follow the manufacturer's instruc ons.
k) Reclaimed refrigerant must not be charged to another refrigera on system unless it has been cleaned
and checked.
f) Make sure the cylinder is on the scale before recovery.
d) Pump down the refrigera on system if possible.
h) Do not overfill the cylinder. (Not more than 80% liquid load by volume).
10. MARKING
j) A er filling the cylinder correctly and comple ng the process, make sure that they will be removed
immediately and the valves will be closed.
When removing refrigerant from the system for service or decommissioning, be sure to follow safety
precau ons when disposing of all refrigerants. When transferring refrigerant to cylinders, ensure that only
appropriate refrigerant recovery cylinders are used. Make sure enough cylinders are available to hold the
total system charge. All cylinders to be used are for and marked with reclaimed refrigerant (i.e. special
refrigerant recovery cylinders). Cylinders should be complete with pressure relief valve and associated
shut-off valves in good working order. Empty recovery cylinders are emp ed and, if possible, cooled before
recovery. Recovery equipment must be in good working order with a complete set of equipment manuals
on hand and should be suitable for recovering flammable refrigerants. In addi on, a set of calibrated
weighing scales should be available and opera onal. Hoses should be complete with non-leaking
disconnect couplings and in good condi on. Before using the recovery machine, check that it is in good
working order, that it has been properly maintained and that all related electrical components are sealed
to prevent igni on in the event of a refrigerant release. If in doubt, consult the manufacturer. The
recovered refrigerant must be returned to the refrigerant supplier in the correct cylinder and with the
appropriate waste transfer document. Do not mix refrigerants when recovering the unit, especially not in
cylinders. If compressors or compressor oils are to be removed, ensure that they have been drained to an
acceptable level to ensure that no flammable refrigerant remains in the lubricant. The evacua on process
must be completed before the compressor is returned to suppliers. To speed up this process, only electric
hea ng should be applied to the compressor body. Draining the oil from the system must be done safely.
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