4-4. Normal Operation (HOT GAS DEFROST Mode)
−
63
−
Outdoor Unit
ON
SV3A
Control
SV4(n)
OFF(*1)
SV3B
Control
SV51/52
ON
SV3C
Control
PMV1
Close
SV3D
Control
PMV3
Close
OFF
PMV4
Close
( 28 HP system described in the example of (16 HP + 12 HP))
(*1) SV4 (n) of stopped compressor (n)=ON
4-Way valve
Outdoor fan
Evaporative gas refrigerant (Low pressure)
Low-pressure circuit (Refrigerant recovery line)
High-pressure gas refrigerant
Condensed liquid refrigerant
The outdoor unit which communication line between indoor and outdoor is connected is the "Header unit".
Other outdoor units are called "Follower units".
SV41
SV3C
SV42
Fan
圧縮機
1
(インバータ)
SV
SV
SV
SV
SV
SV
SV
FP
Indoor
Un
it
Header unit (MMY-MAP1606HT8P-E/TR)
Follower unit (MMY-MAP1206HT8P-E/TR)
M
TC2 TCJ
TC1
Heating
PM
V
TC2 TCJ
TC1
Heating
PM
V
TC2 TCJ
TC1
Heating
PM
V
TC2 TCJ
TC1
Heating
PM
V
TS1
Fan motor
PMV1
TE1
TO
SV52
TS3
SV2
SV3D
TD1
TK4
TK5
TD2
TK2
TK1
SV3A
SV3B
SV
PMV4
TL3
SV41
SV3C
HPS
SV42
Accumulator
Pressure sensor
(low pressure)
Check
Joint
Oil
Header
Fan
圧縮機
1
(インバータ)
SV
SV
SV
SV
SV
SV
SV
M
TS1
Fan motor
PMV1
4-Way valve
TE1
PMV3
TL2
TO
Left side Sub heat exchanger
TS3
Pressure sensor
(high pressure)
SV2
SV3D
Liquid tank
Oil
Separator
Check Joint
TD1
TK4
TK5
Compressor
1
TD2
TK2
TK1
SV3A
SV3B
TE2
TL1
TG1
TG2
PMV4
Sub cool
heat exchanger
TL3
Fusible
Plug
FP
HPS
Compressor
2
Check joint
Left side
Main heat exchanger
Right side Sub heat exchanger
Right side
Main heat exchanger
HPS
Accumulator
Pressure sensor
(low pressure)
Check
Joint
Oil
Header
4-Way valve
Pressure sensor
(high pressure)
Liquid tank
Oil
Separator
Check Joint
Compressor
1
Sub cool
heat exchanger
Fusible
Plug
HPS
Compressor
2
Check joint
Left side
Main heat exchanger
Right side
Main heat exchanger
TL1
SV
SV51
SV
SV52
SV51
SV
AMP Air Conditioning
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Summary of Contents for MAP1406HT8(J)P
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