Electrical Wiring - Hitachi ECO COMPACT PC-ARCHE Bedienungsanleitung

Attach the stopper (plastic band) to the cable at the inner side of the draw-out
hole.
• When Using Junction Box (vii)
✓ Prepare the optional field-supplied Implanted Junction Box.
✓ Feed the cable through the conduit tubing in the wall.
✓ Connect the accessory cable to the field-supplied cable by soldering. Insu-
late the connecting part with tape. (G)
✓ Secure the holding bracket to the junction box with M4 screws.
3. Attach the controller body to the mounted holding bracket. Be careful not to
pinch the cable when attaching it.
4. After installation, peel away the protective film from the LCD screen. (viii)

3. ELECTRICAL WIRING

!
DANGER
Always make sure to turn off the power of the indoor unit when performing electrical wiring
work. Performing electrical wiring work with the power turned on can damage the circuit
boards of the indoor unit and the remote control switch.
Wiring Example (Using a twist pair cable with shield tube: 1P-0.75 mm
Remote control
switch
REMOCON
A

NOTE
• Use a 0.3 to 0.75 mm
✓ If 3 controllers (Unit + 2 zone thermostats) are installed: 25 m each one, for a combined
maximum of 75 m.
✓ If 2 controllers (Unit + 1 zone thermostats) are installed: 50 m each one, for a combined
maximum of 100 m.
✓ If 1 controller (Unit) is installed: up to 100 m.
• If total cable length exceeds 30 m, use a twist pair cable with shield tube (1P ­ 0.75 mm
use of cables other than those specified above can cause malfunction due to the effect of noise.
• Keep a clearance of more than 30 cm between the transmission line (remote control switch
cable and transmission wires) and the power source of indoor units. Otherwise, the heat pump
may not operate properly or malfunction may occur due to the effect of power source noise.
• Refer to the documentation provided with each unit for the proper settings when performing
electrical wiring work between the remote control switch and the indoor units.
PMML0650 rev.0 - 03/2023 - 1000014300
Electrical box of unit
Terminal board 2
3
REMOCON 4
B
Twist pair cable with shield
tube: 1P-0.75mm
cable for connection. The maximum total cable length is:
2
REMOCON REMOCON
M3.5
A
screws
or more
2
or more)
2
Remote control
switch (Subsidiary)
B
). The
2
EN
3