Daikin Emura RXJ20A5V1B Service Manual page 13

RXJ20~50A + FTXJ-A(W)(S)(B)
Split Emura 3 R32
ESIE22-04B – 2022.08
WARNING
Provide adequate measures to prevent that the unit can be used as a shelter by small
animals. Small animals that make contact with electrical parts can cause
malfunctions, smoke or fire.
WARNING
Prior to start working on systems containing flammable refrigerant, safety checks are
necessary to ensure that the risk of ignition is minimised. Therefore, some
instructions should be followed.
Please refer to the service manual for more information.
WARNING
▪
In case refrigerant recovery is required, use the appropriate service ports.
▪
If applicable for your unit, use the appropriate recovery mode or field setting to
smoothly recover the refrigerant.
▪
ONLY use leak free hoses, couplings and manifolds in good working condition.
▪
ONLY use recovery cylinders designated and labelled to recover R32. Note that
thread connection to the cylinder is counter clock.
▪
Always use a calibrated scale in good condition prior and during the refrigerant
recovery process to determine the weight of the recovered refrigerant into the
external refrigerant cylinder.
▪
Read the operation instructions of the recovery unit prior to connecting the
recovery unit. Verify the recovery unit is suited for R32 refrigerant, check that it is
in good working condition, has been properly maintained and that any associated
electrical components are sealed to prevent ignition in the event of a refrigerant
release. Consult manufacturer if in doubt.
▪
Do NOT overfill the refrigerant cylinder, confirm with the supplier of the
refrigerant cylinder about maximum filling ratio if NOT mentioned on the
refrigerant cylinder itself. Generally the maximum filling amount should be
limited to 60% of the maximum volume of the cylinder.
▪
Do NOT exceed the maximum working pressure of the refrigerant cylinder, NOT
even temporarily.
▪
When the cylinders have been filled correctly, and the refrigerant recovery
process is completed, make sure that the cylinders and the equipment are
removed from site promptly and all stop valves on the equipment are (kept)
closed.
▪
The recovered refrigerant MUST be returned to the refrigerant supplier in the
correct recovery cylinder, and the relevant waste transfer note arranged. Do NOT
mix refrigerants in recovery units and especially NOT in cylinders.
▪
Recovered refrigerant MUST NOT be charged into another refrigerant system
unless it has been cleaned and checked.
WARNING
If compressor is to be removed, ensure that the compressor has been evacuated to
an acceptable level to make sure that flammable refrigerant does NOT remain within
the lubricant. The evacuation process MUST be carried out prior to returning the
compressor to the supplier. During the refrigerant recovery, confirm that the
crankcase heater of the compressor body is energized to accelerate this process.
When oil is drained from a system, it MUST be carried out safely.
1 Safety precautions
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Service manual
13