4-
6
. Emergency Operation (Heating Operation under
Header Outdoor Unit Backup Scenario)
Header unit (MMY-MAP1606HT*)
Follower unit (MMY-MAP1206HT*)
Trouble
Set Up as Temporary
Header Unit during
Emergency Operation
Trouble header outdoor unit
Temporal header outdoor unit
4-Way valve
ON
SV3A
OFF
4-Way valve
ON
SV3A
Control
SV4(n)
ON
SV3B
ON
SV4(n)
OFF(*1)
SV3B
Control
SV52
OFF
SV3C
OFF
SV52
OFF
SV3C
Control
PMV1
Close
SV3D
OFF
PMV1
Control
SV3D
Control
PMV3
Close
Outdoor fan
OFF
PMV3
Control
Outdoor fan
Control
PMV4
Close
PMV4
Close(*2)
(*1) SV4 (n) of stopped compressor (n)=ON
(*2) It may be controlled.
( 28 HP system described in the example of (16 HP + 12 HP))
SV41
SV3C
SV42
Fan
圧縮機
1
(インバータ)
SV
SV
SV
SV
SV
SV
SV
FP
Ind
oor
Unit
M
TC2 TCJ
TC1
Heating
PMV
TC2 TCJ
TC1
Heating
PMV
TC2 TCJ
TC1
Heating
PMV
TC2 TCJ
TC1
Heating
PMV
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
Balance pipe service valve
= Full opening
Gas-side service valve
= Full closure
Leakage form PMV:
Liquid-side service valve
= Full closure
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".
TL1
−
6
6
−
Summary of Contents for MMY-MAP0806HT7(J)P
Page 306: ...For HT8 J P E HT8 J P TR model 305 ...
Page 307: ...For T8 J P T7 J P T8P SG T8 J P ID T8 J P T model 306 ...
Page 313: ... 312 For HT8 J P E HT8 J P TR model ...
Page 314: ... 313 For T8 J P T7 J P T8P SG T8 J P ID T8 J P T model ...
Page 320: ... 319 For HT8 J P E HT8 J P TR model ...
Page 321: ... 320 For T8 J P T7 J P T8P SG T8 J P ID T8 J P T model ...
Page 350: ......