Toshiba MMU-P0121H Service Manual page 28

They are not provided to the Cooling Only model.
*
(Indoor unit 1)
TC1 TC2
Air heat
exchanger
at indoor side
Check
joint
Pressure
TA
sensor (Suction
sensor)
Strainer
(Indoor unit 2)
TC1
TC2
Air heat
exchanger
at indoor side
Check
joint
Pressure TA
sensor
(Suction
sensor)
Strainer
(Indoor unit 3)
TC1
TC2
Air heat
exchanger
at indoor side
Check
joint
Pressure TA
sensor
(Suction
sensor)
Strainer
Packed
valve
(balancing
pipe)
(Solid line) High-pressure gas or compressed liquid refrigerant
(Dotted line) Evaporating gas refrigerant (Low-pressure gas)
Center unit (Inverter)
Propeller fan
M
Fan motor
(Right side)
Air heat exchanger at outdoor side
Strainer
Sensor
(Left side)
(TE1)
Air heat exchanger at outdoor side
Pulse motor valve A
(PMV 1 + PMV 2)
Solenoid valve
Check
Pulse motor valve B
(SV2)
valve
(Cooling bypass)
(PMV 3)
High-pressure
sensor
Check joint
Strainer
Sensor
(TK1)
Strainer Strainer Capillary
Oil
separator
Solenoid valve
Solenoid valve
(SV3C)
(SV42)
Liquid
Capillary
tank
Check valve
Sensor
Capillary
(TD1)
HP
High-pressure SW High-pressure
Sensor
(TK2)
Sensor
(TD2)
Compressor
Dryer
Check
valve Sensor Low-pressure
sensor
(TK3)
Oil tank
Check valve
Solenoid valve
Compressor
(SV3A) Check
case oil
Capillary
valve
removal valve
Check valve
Service valve fully opned at balancing pipe.
Service
Packed
valve
valve
Service valve fully closed at liquid side.
(liquid (gas side)
side)
Failure
Pulse motor
valve A
(PMV 1 + PMV 2)
Strainer
*
4-Way valve
Capillary
Sensor
(TS)
Check
Pulse motor valve B
valve
(Cooling bypass)
Strainer
Sensor
Check
(TK1)
joint
Solenoid valve
Liquid
Capillary
tank
Capillary
HP
Accumulator
Sensor
SW
Dryer
Capillary
Solenoid
Oil tank
valve
Check
(SV3B)
valve
Solenoid valve
(SV3A)
OFF ® ON
Strainer
Check valve
Packed Service
Packed
valve valve
valve
(liquid (gas side)
(balancing
side)
pipe) Packed
valve
(balancing
pipe)
Fully close the valves of balancing pipe.
Terminal unit (Fixed-speed)
Propeller fan
M
Fan motor
(Right side)
Air heat exchanger at outdoor side
Sensor
(Left side)
(TE1)
Air heat exchanger at outdoor side
*
4-Way valve
Sensor
Solenoid valve
(SV2)
(PMV 3)
OFF ON
High-pressure
sensor
Check joint
OFF ON
Check
Strainer Strainer Capillary
joint
Oil
separator
Solenoid
(SV3C) Check
Check valve Solenoid
valve valve
valve (SV41)
(SV42)
Sensor
(TD1)
HP
Accumulator
High-pressure SW HP
(TK2)
High-pressure
SW
Compressor
Sensor (TD2)
Check
Sensor Low-pressure
valve
(TK3) sensor
Solenoid
valve
Check (SV3B)
Check valve
valve
OFF
Compressor
Check
case oil
valve Capillary
removal valve
Strainer
Fully close the valves 10 minutes
Unit 2 (Fixed-speed)
after the operation has started
Packed Service
valve valve
Unit 3 (Fixed-speed)
Server
(liquid (gas side)
side)
Packed Packed Service
valve valve valve
Unit 4 (Fixed-speed)
(balancing (liquid (gas side)
pipe) side)
Packed Packed
valve valve
(balancing (liquid
pipe) side)
(TS)
Capillary
ON
Service
valve
(gas side)