Direct Duct Connection; Central Control System - Daikin VAM350J7VEB Installer And User Reference Manual

VRV
VRV
P1
F1 F2
P2
b
P1 P2
a
HRV 1
F1 F2
HRV 2
F1 F2
X35A
c
a Controller for air conditioner
b Maximum length of connection line: 1000 m
c Adapter PCB for remote control (KRP2A51)
Activate setting 17-8-02 to set the central zone link to ON. No further
settings are required.
8.3.5

Direct duct connection

The line connections are the same as for the 1-group linked-control
system.
VRV
P1
P2
c
P1P2
a
a Controller for air conditioner
b Controller for air conditioner
c Maximum length of connection line: 500 m
Initial settings
Activate below setting for direct duct connection. This direct duct
configuration ONLY works if P1/P2 is connected.
▪ Mode number: 17
▪ Switch number: 5
▪ Position number: 02
Other functions
Like in a 1-group linked-control system, other heat reclaim ventilation
unit functions can also be configured.
8.3.6

Central control system

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.
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1A – 2018.05
HRV
P1 P2
P1 P2
b
All control
e
d
b
HRV 1
X35A
F1 F2
HRV 2
P1
F1 F2
P2
a
P1 P2
VRV 1
F1 F2 P1
P1 P2 a
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
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 heat reclaim
ventilation 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.
▪ The adapter PCB can be connected to the electric component
mounting base of either the heat reclaim ventilation unit or the air
conditioner.
8 Configuration
F1 F2
c
D1 D2
Installer and user reference guide
31