Daikin SiEN04-306D, Руководство по обслуживанию

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SiEN04-306D Outdoor Unit
Removal Procedure 187
2.7 Removal of the Electronic Expansion Valve
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
1 Remove the electronic
expansion valve coil.
2 Remove the sheets of
putty.
Before working,
make sure that the
refrigerant is empty
in the circuit.
3 Heat up the two brazed
parts of the electronic
expansion valve and
disconnect.
Be sure to apply
nitrogen
replacement when
heating up the
brazed part.
Caution
Be careful about the
electronic expansion valve,
pipes and so on, which were
heated up by a gas brazing
machine, so as not to get
burnt your hands.
Warning
Ventilate when refrigerant
leaks during the work.
(If refrigerant contacts fire, it
will cause to arise toxic gas.)
Electronic exp a n s ion v a lve coil
(R27 3 7)
Electric exp a n s ion v a lve
(R27 3 9)