Central Control System - Daikin VAM-J8 Series Manual

17 | Configuration

17.3.6 Central control system

All control
Installer and user reference guide
78
▪ Mode number: 17
▪ Switch number: 5
▪ Position number: 07
Other functions
Like in a 1-group linked-control system, other VAM functions can also be
configured.
To change the settings, P1/P2 of the controller MUST be connected to the heat
reclaim ventilation units. The controller can be removed after the settings are
changed.
If the unit is supposed to operate without controller, do NOT switch it on with the
controller connected. Otherwise, the unit will give an error once the controller is
removed, because it will keep on searching for the controller signal. To resolve the
error, perform a power reset without the controller connected.
d
b
VAM 1
X35A
F1 F2
VAM 2
P1
F1 F2
P2
VRV
P1
F1 F2
P2
a Controller for air conditioner
b Maximum length of connection line: 1000 m
c Schedule timer (DST301B51)
d Adapter PCB for remote control (KRP2A51 )
e On/Off signal
VAM 1 VAM heat reclaim ventilation unit 1
VAM 2 VAM heat reclaim ventilation unit 2
VRV VRV indoor unit
If you use the adapter PCB (KRP2A51) or schedule timer (DST301B51), the
following is valid:
▪ Up to 64 units, a combination of air conditioners and VAM units, can be
connected to the F1 and F2 terminals.
▪ This system does NOT require group number setting for central control (auto-
address system). The central control group number is automatically assigned if
the adapter PCB (KRP2A51) or schedule timer (DST301B51) is connected.
▪ The adapter PCB and the schedule timer CANNOT be used together. The adapter
PCB allows on/off control. The schedule timer allows on/off control with a weekly
schedule.
e
F1 F2
D1 D2
c
a
P1 P2
a
P1 P2
VAM350~2000J8VEB
Heat reclaim ventilation unit
4P664012-1 – 2021.08