15
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Electrical installation
15.2 Opening the switch box
Installer and user reference guide
54
Wiring example
a
b
d
OUT
1
L N
L N
1
c
VRV
a Outdoor unit/BS unit
b Switch box
c Indoor unit
d Power supply 220-240 V~50/60 Hz
e Controller for VRV
f Transmission wiring
g Controller for VAM
VRV VRV indoor unit
VAM VAM heat reclaim ventilation unit
WARNING
The VAM and the EKVDX indoor unit MUST share the same electrical safety devices
and power supply.
CAUTION
Before opening the cover, be sure to turn off the power switches of the main units
and other devices connected to the main units.
▪
Remove the screws that secure the cover and open the switch box.
▪
Secure the power supply cable and the control wire with a tie wrap, as shown in
the figures.
2
VRV
VAM
2
1
2
P1 P2 F1 F1 T1 T1
P2 P1
F1 F2
e
VAM
P1
P2
f
f
P1
P2
g
d
L N
JC
J1
J2 J3
L N
f
P1
P2
VAM350~2000J*VEB*
Heat reclaim ventilation unit
4P664012-1A – 2024.01