MXZ-3C24NA3 Service Manual

12
Tools for R410A (The following table shows whether conventional tools can be used or not.)
Tools and materials Use R410A tools Can R22 tools be used? Can R407C tools be used?
Gauge manifold
Air purge, refrigerant charge
and operation check
Tool exclusive for R410A
Charge hose Tool exclusive for R410A
Gas leak detector Gas leak check Tool for HFC refrigerant
Refrigerant recovery equipment Refrigerant recovery Tool exclusive for R410A
Refrigerant cylinder Refrigerant charge Tool exclusive for R410A
Applied oil Apply to ared section
Ester oil, ether oil and
alkylbenzene oil
(minimum amount)
Ester oil, ether oil:
Alkylbenzene oil:
minimum amount
Safety charger
Prevent compressor malfunction
when charging refrigerant by
spraying liquid refrigerant
Tool exclusive for R410A
Charge valve
Prevent gas from blowing out
when detaching charge hose
Tool exclusive for R410A
Vacuum pump
Vacuum drying and air
purge
Tools for other refrigerants can be
used if equipped with adopter for
reverse ow check
(Usable if equipped with
adopter for reverse ow)
(Usable if equipped with
adopter for reverse ow)
Flare tool Flaring work of piping
Tools for other refrigerants can be
used by adjusting aring dimension
(Usable by adjusting
aring dimension)
(Usable by adjusting
aring dimension)
Bender Bend the pipes
Tools for other refrigerants can be used
Pipe cutter Cut the pipes Tools for other refrigerants can be used
Welder and nitrogen gas cylinder Weld the pipes Tools for other refrigerants can be used
Refrigerant charging scale Refrigerant charge Tools for other refrigerants can be used
Vacuum gauge or
thermistor vacuum
gauge and vacuum valve
Check the degree of vacuum.
(Vacuum valve prevents back
ow of oil and refrigerant to
thermistor vacuum gauge)
Tools for other refrigerants
can be used
Charging cylinder Refrigerant charge Tool exclusive for R410A ─
: Prepare a new tool. (Use the new tool as the tool exclusive for R410A.)
: Tools for other refrigerants can be used under certain conditions.
: Tools for other refrigerants can be used.
OBH702M