Toshiba MMY-MAP0806HT8P Service Manual page 283

N . o P a t r o t b e e r p a l c e d
9※) 4-way valve
- detachment/
attachment
MAP0806∗
MAP1006∗
MAP1206∗
※) This process
Before starting the work, be sure to recover the
"N0.9" doesn't need
refrigerant of outdoor unit by removing it with a
for Cooling only
refrigerant recovery device.
models because it
doesn't have 4-way
1. Detachment
valve.
W o k r p o r c e d
WARNING
Wear a pair of gloves.
Otherwise, you will risk an injury involving a
replacement part or some other object.
1) Remove the lower cabinet (front side).
Remove the inverter box in accordance with the
2)
dismantling instructions.
Disconnect the 4-way valve coil and PMV1 coil
3)
(1 piece) and SV51, 52 coils (2 pieces) and get
all wiring located near the
4-way valve out of the way.
4) Remove brazed points (2 locations) for the PMV
assembly, which is placed in front of the 4-way
valve.
* Provide adequate cover for the PMV to protect it
from overheating.
5) Since it is difficult to simultaneously remove the
brazed points for the pipes located above the 4-
way valve (3 locations), cut through them just
below the brazed points using a saw, etc.
6) Detach the pipe located below the 4-way valve.
7) Remove the end sections of the pipes above the
4-way valve, which were cut in step 5).
8) Install a new 4-way valve.
* Provide adequate cover for the 4-way valve to
protect it from overheating. During the installation,
insert pipes firmly into the 4-way valve, or a
blockage or leakage involving brazing filler metal
may result.
9) Reinstall the PMV assembly, which was removed
in step 4).
* Provide adequate cover for the PMV to protect it
from overheating.
10) Reinstall all the coils removed in step 3), and put
the wiring back to its initial state.
11) Reinstall the inverter box in accordance with the
installation instructions.
12) Reinstall the lower cabinet.
u e r
For HT8(J)P, HT7(J)P, HT8(J)P, HT8(J)P-ME,
For HT8(J)P-E, HT8(J)P-TR
4-way valve
− 282 −
R e m a k r s
HT7P-ME, T8(J)P-E, HT8P-A model
SV52
PMV1
Brazed point
Brazed point
model
SV52
PMV1
SV51
7) End sections of pipes (3 locations)
5) Cutting line
Brazed point