■
English
8
6.
When connecting to a sub electrical wiring box
6-1. Procedure for connecting
main electrical wiring box
with sub electrical wiring box
1) Turn off the “HPSU” and hydro box
before starting work.
2) Remove the sub electrical wiring box
cover (with 2 tabs) after removing the
screw and dismounting the sub
electrical wiring box from the bottom
frame of the unit (refer to
Figure 2
,
Figure 3
).
3) Connect the wires from the sub
electrical wiring box to Faston
terminals 1 and 2 on the terminal block
of the main electrical wiring box.
4) Connect wiring from the main electrical wiring box to sub electrical wiring box connectors 2P and 4P. Insert the
binding band previously attached to the wires into the sub electrical wiring box and secure the wires in place (refer
to
Figure 1
).
5) Insert the
binding band into the sub electrical wiring box (refer to
Figure 4
).
6) Replace the front metal plate cover and the sensor securing plate of the main electrical wiring box.
6-2. Procedure for connecting sub electrical wiring box with hydro box and two way valve
1) Connect the wires from the electric actuator on the two way valve to 1 and 2 on the terminal block of the sub
electrical wiring box (refer to
Figure 1
).
2) Connect X2M terminals 1 and 4 in the hydro box to terminals 5 and 6 in the sub electrical wiring box with the
specified wires. Similarly, connect X2M terminals 6 and 7 with sub electrical wiring box terminals 3 and 4 (refer to
Figure 1
).
3) Fasten the two way valve and hydro box connecting wires with the
binding band and cut off any extra band
(refer to
Figure 5
).
4) Replace the sub electrical wiring box cover (refer to
Figure 6
).
5) Secure the sub electrical wiring box to the bottom frame (refer to
Figure 6
).
WARNING
• When connecting the unit to “HPSU” or a hydro box, be sure to turn off the unit, “HPSU”, and hydro box before starting
work. This procedure involves connecting high-voltage wires. Performing it while devices are energized may result in
electrical shock, fire, injury, or death.
1
4 6 7
123456
Sub electrical wiring box
X2M terminal block on the hydro box
2P
4P
From the main
electrical wiring
box
Along the wires to the ceiling.
Wires from the
electric actuator on
the two way valve
• H05RN
• Use 0.75mm
2
wires.
(field supply)
[Figure 1]
To the main electrical
wiring box
K
K
Binding band
K
Tabs
[Figure 4]
[Figure 5]
[Figure 6]
Cut off any
extra band.
Fasten the 3 wires
securely together.
Leave some play in the 3 wires
between the terminal and the
(K) binding band so that no
force is exerted on the terminal.
Exercising care so that
the wires are not caught
between the sub electrical
wiring box and the sub
electrical wiring box
cover, close the cover
until the 2 tabs latch
securely in the holes.
K
Tabs
[Figure 2]
[Figure 3]
Screw
Screw
