Electrical Connections For Additional Field Supplied Damper; To Connect The Electrical Wiring - Daikin VAM-J8 Series Manual

15.3 Electrical connections for additional field supplied damper

15.4 To connect the electrical wiring

VAM350~2000J8VEB
Heat reclaim ventilation unit
4P664012-1 – 2021.08
d Securing screw and washer
e Grounding terminal
f Terminal board
g Transmission wiring terminal board (P1, P2, F1, F2)
h Transmission wiring (to optional controller)
Ii Power supply cable
j Wires for connection of additional external damper (supplied accessory)
k Insulated splices-closed barrel connector (0.75 mm²) (field supply)
l Double or reinforced insulated flexible cable (0.75 mm²) to external damper (field
supply)
m Tie wrap (field supply)
n BRP4A50A (optional accessory)
o KRP2A51 (optional accessory)
p CO₂ sensor (optional accessory)
q Tapping screw
r Wires for fresh-up operation
An external damper prevents the intake of outdoor air when the VAM is switched
off.
The VAM main PCB provides a contact for an external damper.
d
X24A
PCB
a
a VAM
b External damper
c External damper earthing
d Power source
CAUTION
Follow the instructions below carefully.
Required electrical connections
Connect one end of the accessory wire to the X24A connector on the PCB and the
other end to the wire leading to the external damper via an insulated splices-closed
barrel connector (0.75 mm²).
The electrical circuit requires a current protection of 3 A and a maximum voltage of
250 V.
X24A will close the contact when the VAM fan starts operating and it will open the
contact when the fan is stopped.
WARNING
The VAM and the EKVDX indoor unit MUST share the same electrical safety devices
and power supply.
1 Power supply cable: Route the cable through the frame and connect the
wires to the terminal block (L, N, earth).
2 Transmission cable(s): Route the cable(s) through the frame, connect the
wires to the terminal block (P1, P2).
c b
15 Electrical installation
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Installer and user reference guide
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