Hitachi airCore 700 Installation & Maintenance Manual page 23

(3) Carry out the field electrical wiring work as shown in the figure above.
a. Connect the power cables to the terminal block (L, N) and earth wire to the grounding terminal
in the electrical control box.
b. Connect the Primary Wired Remote Controller to terminal block in the Zone Interface Box,
cable length no more than 100m.
c. Connect the communication cables from the terminal block in the Zone Interface Box to the
terminal block (A, B) in the indoor unit electrical control box, cable length no more than 50m.
d. The Secondary Wired Remote Controller is optional. If installed, run the interconnecting cables
to the terminal block (A,B) in the indoor unit electrical control box.
e. The Remote Sensors (sensor 1 & 2) are optional. If installed, connect these to connectors THM2
and THM3 located on the main board in the Zone Interface Box.
f. Connect zone damper motors to the corresponding connector(ZONE1~ZONE8) on the relay
board in Zone Interface Box. For screw terminal type, connect to CN1~CN8 corresponding
terminals (OPEN, COM, CLOSE). For plug-in type, dampers need to be connected to CN9~CN16
corresponding terminals (OPEN, COM, CLOSE).
g. Thermostat is connected to 2CN1~2CN8 (Therm. 1~Therm. 8) on the connector board in the
Zone Interface Box, with a maximum length of 50m for a single thermostat.
NOTES:
•
The zone damper motors must be connected to respective terminals.
•
Do not connect the communication terminal (A,B) of Zone Interface Box to outdoor unit.
•
The Zone Interface Box power cable must be connected to indoor unit power terminal block
(see figure 6.3, figure 6.4), and use the same power supply of the indoor unit.
(4) Re-fix the cable clamp cover and tighten the clamp screw to ensure that the connected harness is
securely fastened.
(5) Check to ensure that all the DIP switched are set to the off ("0") position on the main board as
shown in figure below.
DSW4
ON
1 2 3 4
ON
1 2 3 4
DSW9
(6) Install the Zone Interface Box cover after the electrical wiring work is completed.
DSW5
ON
1 2 3 4 5 6
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
DSW6 DSW3
Figure 6.5 DIP Switch
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INSTALLATION & MAINTENANCE MANUAL
ON
1 2
DSW7