Toshiba MMY-MUP0801HT7JP, Руководство по обслуживанию

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MMY-MUP 14A1*, 1601*, 1801* and 2001*
>
Check items and procedures to follow when checking oil circuit with compressor(s) disconnected
Procedure Location Check item
Leakage of outdoor PMV
Leakage of check valve in
discharge pipe convergent
section
A,B
C.D
1) With PMV 1, 2, 3 and 4 fully closed, apply pressure to the check joint of liquid pipe with nitrogen, and check the
pressure at the check joint of discharge pipe.
If the pressure at the check joint of discharge pipe increases, there is a leak from PMV1 (A), 2 (B) or 3 (C) and
check valve of dischage pipe (D). Replace the troubled parts.
2) If the pressure does not increase, fully open outdoor PMV1 and 2 and check the pressure at the check joint
of discharge pipe again.
If the pressure increases, there is a leak from the check valve of discharge pipe (D). Replace the part.
Clogging of SV3D valve
Clogging of oil-return capillary
Clogging of oil-return distributor
F
3) With pressure applied to the check joint of discharge pipe with nitrogen, manually open the SV3D valve. If gas
does not escape from the suction pipe section of the disconnected compressor, the SV3D valve, oil-return
capillary or oil-return distributor is clogged. Replace the part.
઒ ઒
TS1
TS3
Low-pressure
sensor
4-way valve
Check Valve
par
ator
High-pressure
sensor
M
Fan
Fan motor
TL1
PMV1
TG3
TG1
PMV2
TG2
PMV3
TL2
TE1
Left side
Main heat exchanger
TE2
Left side
Sub heat exchanger
Right side
Main heat exchanger
TE3
RIght side
Sub heat exchanger
In
v
e
rt
e
r h
e
a
t
s
in
k
M
Fan
Fan motor
㪦㫌㫋㪻㫆㫆㫉㩷㪬㫅㫀㫋㩷㩿㪈㪋㪘㪃 㪈㪍㪃㩷㪈㪏㪃 㪉㪇㪟㪧㪀
㪤㫆㪻㪼㫃㪑㩷
MMY-MUP 14A1*, 1601*, 1801* and 2001*
TO
䌁
㪙
㪚
㪛
㪝
TK1
TD1
SV
TL3
Liquid side
Service valve
Gas side
Service valve
Subcool
Heat Exchanger
PMV4
Com
p
res
s
or
(I
nv
ert
er)
SV41
High-
pressure
switch SV3D
Accumulator
SV
Oi
l s
epar
ator
SV
SV3F
SV
Symbol
SV
Solenoid
valve
Capillar y
tube
Check
valve
Check
joint
Strainer
Temperature
sensor
Distributor
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