Refrigerant Flow (Reclaim) - Toshiba MMY-MUP0801HT8P-TR Service Manual

4-6. Refrigerant Flow (Reclaim)

Header Unit (MMY-MUP2401*)
Fan
M
Fan motor
PMV1
Left side Left side Left side
TL1
Main heat exchanger Main heat exchanger Main heat exchanger
TE1
Left side Left side Left side
Sub heat exchanger
Sub heat exchanger Sub heat exchanger
PMV2
TE2
PMV3
TL2
TS3
High-pressure
sensor
Check joint
SV3D
SV
SV
SV41
TD1
Subcool
Heat Exchanger
PMV4
TL3
Check joint
TC2 TCJ TC1
Cooling
Outdoor Unit
4-way valve OFF SV3D
PMV1 Control SV3F
PMV2 Control SV4(n)
PMV3 Control Outdoor fan
PMV4 Control
Fan
M
Fan motor
TO
Right side Right side Right side
Main heat exchanger Main heat exchanger Main heat exchanger
TG1
TG2
TG3
Right side Right side Right side
Sub heat exchanger Sub heat exchanger Sub heat exchanger
TE3
4-way valve
TS1
Check joint
Low-pressure
sensor
Accumulator
SV3F
High- High-
SV
pressure pressure
switch switch
SV42
TD2
TK1 TK2
Liquid-side service valve
=Full closure
TC2 TCJ TC1
Cooling
Control
Control
Control
Control
The outdoor unit which communication line between indoor and outdoor is connected is the "Header unit".
Other outdoor units are called "Follower units".
Follower Unit (MMY-MUP1401*)
PMV1 Open
TL1
PMV2
Open
TL2
TS3
SV
SV41 On
Subcool
Heat Exchanger
PMV4 Open
TL3
Check joint
TC2 TCJ
Cooling
High-pressure gas refrigerant
Condensate liquid refrigerant
(38 HP system described in the example of (24 HP + 14 HP))
- 52 -
FAN On
M
Fan motor
TO
TG1
Main heat exchanger Main heat exchanger Main heat exchanger
TE1
TG2
Sub heat exchanger Sub heat exchanger Sub heat exchanger
TE2
High-pressure
sensor
Accumulator
Check joint
SV3D On
SV
SV3F On
High-
pressure
switch
TD1
TK1
TC1 TC2 TCJ
Cooling
Evaporative gas refrigerant (Low pressure)
Low-pressure circuit (Refrigerant recover line)
Trouble
4-way valve
TS1
Check joint
Low-pressure
sensor
TC1