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Field Piping and Wiring
Si21-205
40
Field Piping and Wiring
1.2.3 Wiring Example For FFQ Model
For the wiring of outdoor units, refer to the installation manual attached to the outdoor units.
Confirm the system type.
•
Pair type
:
1 remote controller controls 1 indoor unit. (standard system)
(Refer to Fig. 25)
•
Multi system
:
1 through 4 indoor units connect to 1 outdoor unit. The indoor unit is
controlled by remote controller connected to each indoor unit.
(Refer to Fig. 26)
However, the group control is not expected.
•
Group control
:
1 remote controller controls up to 16 indoor units. (All indoor units operate
according to the remote controller)
(Refer to Fig. 27)
•
2 remote controllers control
:
2 remote controllers control 1 indoor unit.
(Refer to Fig. 28)
Note:
1. All transmission wiring except for the remote controller wires is polarized and must match the
terminal symbol.
2. In case a shielding wire is to be used, connect a shielded portion with the
of a remote
controller terminal board.(Also, connect the ground for the remote control to a grounded
metal part.)
3. For group control remote controller, choose the remote controller that suits the indoor unit
which has the most functions (as attached swing flap)
Pair type
Multi system
Main power supply
Main switch
1 2 3
1
P P
2 3
1
P
1
2
P
2
Fuse
Outdoor unit
Indoor unit
Group control
Main power supply
Main switch
1 2 3
1
P P
2 3
1
P
1
2
P
2
Fuse
Outdoor unit
Main power supply
Main switch
1 2 3
1
P P
2 3
1
2
Fuse
Outdoor unit
Main power supply
Main switch
1 2 3
1
P P
2 3
1
2
Fuse
Outdoor unit
Indoor unit
Indoor unit
Indoor unit
Fig. 25
Fig. 27
Fig. 28
Fig. 26
Remote
controller 2
(Optional
accessories)
Remote
controller 1
(Optional
accessories)
Remote controller
(Optional accessories)
Remote controller
(Optional accessories)
2 remote controllers control
Main power supply
Main switch
1 2 3
1
P P
2 3
1
P
1
2
P
2
P
1
P
2
Fuse
Outdoor unit
Indoor unit
Main power supply
Main switch
1 2 3
1 2 3
P P
1
2
P P
1
2
1 2 3
1 2 3
P P
1
2
P P
1
2
1 2 3
1 2 3
P P
1
2
P P
1
2
Fuse
Outdoor unit
Indoor
unit
Indoor
unit
Indoor
unit
Remote controller
(Optional accessories)
Summary of Contents for Sky Air B-Series R-410A
Page 7: ...Si21 205 vi Table of Contents ...
Page 15: ...Models Si21 205 4 Model Name and Power Supply ...
Page 16: ...Si21 205 Functions 5 Part 2 Functions 1 List of Functions 6 ...
Page 35: ...Wireless Remote Controller Si21 205 24 Remote Controller ...
Page 79: ...Settings Concerning Maintenance Si21 205 68 Field Setting Detail of PCB 2 ...
Page 83: ...Maintenance Mode Setting Si21 205 72 Field Setting ...
Page 239: ...Troubleshooting for Outdoor Unit 50 60 class Si21 205 228 Troubleshooting ...
Page 321: ...Outdoor Unit 50 60 class Si21 205 310 Removal Procedure ...