Installation Manual

6
en
4. Installing the refrigerant piping
4.7. For twin combination
Refrigerant piping limitation of length, height difference are shown in the gure. (Fig.
4-8)
A Indoor unit
B Outdoor unit
C Multi distribution pipe (option)
D Height difference (Indoor unit-Outdoor unit) Max. 30 m, 100 ft
E Height difference (Indoor unit-Indoor unit) Max. 1 m, 3 ft
A: Main piping
B,C: Branch piping Max. 20 m, 65 ft
Fig. 4-8
D
E
A
A
C
B
C
A
B
A+B+C 75m, 245 ft
|
B–C
|
8m, 26 ft
Optional parts only for HA24, HA30, HA36
Outdoor unit drainage pipe connection
When drain piping is necessary, use the drain socket or the drain pan (option).
Drain socket * PAC-SH71DS-E
Drain pan * PAC-SG64DP-E
* Do not use the drain pipe in cold climates as it may freeze.
6. Electrical work
6.1. Outdoor unit (Fig. 6-1, Fig. 6-2)
1 Remove the service panel.
2 Wire the cables referring to the Fig. 6-1 and the Fig. 6-2.
Fig. 6-1
Fig. 6-2
A
C
C
E
E
E
E E
S3
S3
S2
S1
S2S1L1 L2
GR
A
Indoor unit
B
Outdoor unit
C
Remote controller
D
Main switch (Breaker)
E
Earth
For Power
For Power
A
B
B
D
D
A
A Earth terminal
B Terminal block
C Clamp
D Service panel
E Wire the cables so that they do not
contact the center of the service
panel or the gas valve.
L1 GR L2 S1 S2 S3
CONDUIT PLATE : accessory
L1 GR L2
S1 S2 S3
A
B
C
D
E
■
HA30, HA36
■
HA24, HA42
5. Drainage piping work