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When drain piping is necessary, use the drain socket or the drain pan (option).
• Connect the water pipes to the outlet and inlet pipes.
(Parallel male screw for 1-inch water pipe (ISO 228/1-G1B))
• Inlet and outlet pipes position is shown on the Fig. 5-1.
• Install the hydraulic ¿ lter at the water intake.
• Maximum allowable torque at the water piping connection is 50 N•m.
• Check if water leaks after installation.
• Inlet water gauge pressure must be between 0-0.3 MPa.
• Use the inlet water with a temperature lower than 55 ÛC.
• The water in a system should be clean and with a pH value of 6.5-8.0.
• The followings are the maximum values;
Calcium : 100 mg/L
Chlorine : 100 mg/L
Iron/manganese : 0.5 mg/L
[Fig. 5-1]
A Water outlet
B Water inlet
Following water quantity is required in the water circuit.
Model
Minimum water quantity (L)
W50
29
W85
37
W112
48
HW112
48
HW140
60
1 Remove the service panel.
2 Wire the cables referring to the Fig. 6-1 and the Fig. 6-2.
For Power
A Indoor unit
B Outdoor unit
C Remote controller
D Main switch (Earth leakage breaker)
E Earth
Optional parts name
Model name
Drain socket
PAC-SG61DS-E
Drain pan for 50/85
PAC-SG64DP-E
*There is no optional drain pan for 112/140.
* The drain socket is applicable only to W50, W85 and W112 and not compatible with
HW112 and HW140.
A Earth terminal
B Terminal block
C Clamp
A
B
D
C
E
D Service panel
E Wire the cables so that they do
not contact the center of the
service panel.
F Earth terminal
50-140V (Single phase)
F
F
112-140Y (3 phase)
F
L1 L2 L3 N
S1 S2 S3
F
5
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