MAHLE ACX1281, Operation Manual

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Commissioning | ACX1281 | 17 ACX1281 | 17 | 17 en
4.4 Checking type of connection of
external refrigerant bottle
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Follow the instructions below for filling the internal
refrigerant bottle.
—
Refrigerant bottle with one valve:
Always turn the external refrigerant bottle upside down
when filling the internal refrigerant bottle.
—
Refrigerant bottle with two valves:
Use the adapter set to connect the service hose (LP)
to the external refrigerant bottle. In doing so, turn the
external refrigerant bottle such that the connections are
facing upwards.
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The internal refrigerant bottle should only be replaced if it is
severely damaged. The internal refrigerant bottle must always
be filled using an external refrigerant bottle.
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During filling, the external refrigerant bottle must be firmly
positioned and the operator must ensure that the service
hoses are safely routed to avoid the danger of the external
refrigerant bottle falling over.
4.5 Filling internal refrigerant bottle
Warning – Risk of frostbite from escaping
refrigerant
Refrigerant causes severe frostbite on the skin.
h
Check the service hoses for damage.
h
Firmly connect the service quick-release cou-
plings to the service hoses.
h
Wear protective goggles.
h
Wear protective gloves.
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Before the ACX1281 can be used, the internal refrigerant bottle
must be filled with liquid refrigerant. Use only R1234yf refrigerant.
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A menu-driven refrigerant check is performed before filling the
internal refrigerant bottle.
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The refrigerant can be obtained from your gas supplier. It can
be stored normally and transported in bottles with connection
fittings.
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To ensure a reliable procedure, it is advisable to use the optimum
quantity of refrigerant. The optimum quantity of refrigerant for
the ACX1281 is 4 kg – 15.5 kg.
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An inadequate quantity may make efficient filling of the vehicle
air conditioning system impossible. Also, if there is an insufficient
quantity, the ACX1281 may not be able to operate efficiently. In
the event of an excessive quantity, there may not be sufficient
space for the refrigerant recovered from the vehicle air condi-
tioning system.
m
Generally speaking, the actual quantity of refrigerant added ex-
ceeds the set quantity by approx. 200g as there is no refrigerant
in the internal refrigerant circuit. Add 200g to the set quantity
when filling with refrigerant for the first time.
1. Select " Maintenance >> Internal bottle fill ".
2. Follow the menu prompting.
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The current pressure inside the external refrigerant bottle is
indicated on the low-pressure gauge.
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Any amount of refrigerant between 100g and 15500g can be
added.
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Do not interrupt the automatic filling process prior to automatic
termination by the ACX1281.
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Press the i key to check the quantity of refrigerant in the internal
refrigerant bottle upon completion of the filling operation.