Daikin J Series Service Manual Page 293

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Outdoor Unit SiE18-201
282 Removal Procedure
2.5 Removal of Motorized Valve
Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Step Procedure Points
Before taking this
procedure, make sure
there is no refrigerant gas
left in the refrigerant
pipes.
Cut off the wire harness
clamp.
Reassembling precautions
1 Use non-oxidizing brazing
method. If nitrogen gas is not
available, braze the parts
speedily.
2 Wrap the motorized valve
itself with wet cloth. Splash
water over the cloth against
becoming too hot (keep it
below 120˚C).
In pulling the pipes, be
careful not to overtighten
them with pliers. The pipes
may get deformed.
If the gas welding machine fails
to remove the motorized valve,
take the steps below.
1. Disconnect the brazed pipe
sections that are readily
easy to separate and join
together later.
2. With a small copper tube
cutter, cut off the internal
pipes to easily take out the
motorized valve.
Note:
Never use a hack saw. Cuttings
may come into the pipes.
1. Removing the motorized
valve coils
1
Pull out the three
motorized valve coils.
In remounting the
motorized valve coils, pay
attention to their
directions. Orient them so
that the harness
connections be at the
horizontally coming pipes.
2. Disconnecting the
peripheral components
1
Disconnect the HPS
lead.
2
To protect the 4-way
valve coil, detach it out
of position.
3
Remove the check
valve putty at two
locations.
(M1187)
Motorized
valve coils
HPS
(M1188)
4-way
valve coil
Putty for check valve
(M1189)
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