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7.5.11 First refrigerant fill
Warning!
Exposure to leakage of refrigerant is possible.
► Whenever work is carried out on the parts of the refrigeration circuit car-
rying refrigerant or oil, extreme caution is required.
Notice
In order to charge the refrigerant, the compressor must be ready for opera-
tion.
► Check that the compressor is ready for operation.
► The national safety regulations for ammonia plants must be met and the
plant must have been approved by the notified body.
► Safety devices, such as machine area ventilation and ammonia detection
system, must be operational.
► The secondary refrigerant system must be operational.
► The rated amount of refrigerant filling must not be exceeded under any
circumstances. (see specification for the order)
Only use ammonia acc. to ISO no. D15 11014 that contains less than 30
ppm of water!
For the amount of ammonia fill, refer to the Technical Specifications.
Filling connections:
After the lubricant has been filled, the refrigerant circuit can be charged with
refrigerant through the refrigerant draw-in valve(s). The refrigerant draw-in valve
is shown on the supplied P+I diagram of the product (see order-dependent docu-
mentation).
Notice
Comply with occupational safety and health regulations!
► Wear safety glasses and protective gloves.
Filling procedure for refrigerant:
1. Required equipment: NH
3
filling cylinder, scales, special NH
3
filling hose line
with cylinder connection at one end and stop valve at the other end.
2.
Connect hose to the cylinder and vent when evacuating the product, for
example.
3. Connect the stop valve hose to the product refrigerant draw-in valve by
means of an adapter
4. Determine the cylinder weight
5. Open the product refrigerant draw-in valve.
6.
Open the cylinder valves and admit refrigerant circuit. Monitor the change in
weight of the cylinder. Leave the refrigerant draw-in valve open until the
required amount is in the refrigerant circuit or pressure compensation has
been produced. If more refrigerant is needed, it can only be topped up after
the initial operation
Start-up
First start - Start-up procedure
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