Toshiba SMMS-u MMY-MUP0801HT8 Quick Reference page 118

4-6. Refrigerant Flow (Reclaim)
Header Unit (MMY-MUP2401HT8-C)
Fan Fan
M M
Fan motor Fan motor
TO
PMV1
Left side Left side Left side Right side Right side Right side
TL1
Main heat exchanger Main heat exchanger Main heat exchanger Main heat exchanger Main heat exchanger Main heat exchanger
TE1 TG1
TG2
TG3
Left side Left side Left side Right side Right side Right side
Sub heat exchanger Sub heat exchanger Sub heat exchanger Sub heat exchanger Sub heat exchanger Sub heat exchanger
TE3
PMV2
TE2
PMV3
TL2
4-way valve
TS3
High-pressure TS1
sensor
Check joint
Low-pressure
Check joint
sensor
Accumulator
SV3D
SV
SV3F
High- High-
SV
pressure pressure SV
switch switch
SV41
SV42
TD1 TD2
Subcool
Heat Exchanger
PMV4
TL3
TK1 TK2
Check joint
Liquid-side service valve
=Full closure
TC2 TCJ TC1 TC2 TCJ TC1
Cooling Cooling
Outdoor Unit
4-way valve OFF SV3D
PMV1 Control SV3F
PMV2 Control SV4(n)
PMV3 Control Outdoor fan
PMV4 Control
Follower Unit (MMY-MUP1401HT8-C)
Trouble
FAN On
M
Fan motor TO
PMV1 Open
TG1
Main heat exchanger Main heat exchanger Main heat exchanger
TE1
TL1
TG2
PMV2
Sub heat exchanger Sub heat exchanger Sub heat exchanger
Open
TE2
TL2
4-way valve
TS3
TS1
Check joint
High-pressure
sensor
Low-pressure
sensor
Accumulator
Check joint
SV3D On
SV
SV SV3F On
High-
pressure
SV41 On
switch
Subcool
Heat Exchanger
TD1
PMV4 Open
TL3
Check joint
TK1
TC2 TCJ TC1 TC2 TCJ TC1
Cooling Cooling
Control
High-pressure gas refrigerant
Control
Condensate liquid refrigerant
Evaporative gas refrigerant (Low pressure)
Control
Low-pressure circuit (Refrigerant recover line)
Control (38 HP system described in the example of (24 HP + 14 HP))
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