Daikin VAM350J8VEB Service Manual page 95

Linked control with more than 2 groups
VAM350~2000J8VEB + EKVDX32~100A2VEB
VRV system air conditioner
ESIE22-07 – 2022.02
VRV
P1
P2
a
a Controller for air conditioner
b Controller for air conditioner
c Maximum length of connection line: 500 m
VRV VRV indoor unit
VAM VAM heat reclaim ventilation unit
NOTICE
Group control connection is NOT allowed with EKVDX indoor units.
To change the settings, P1/P2 of the controller MUST be connected to the VAM
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.
▪ The optional adapter PCB (KRP2A51) must be connected to 1 unit that is part of
the F1/F2 loop. This unit can be an air conditioner or a VAM unit.
▪ Up to 64 units, a combination of air conditioners and VAM units, can be
connected to the F1 and F2 terminals.
▪ KRP2A51 ONLY has ON/OFF control. If the VAM units run in automatic mode,
they have a fixed setpoint. If P1/P2 is NOT connected, the setpoint of the air
conditioner is unknown.
▪ Use the air conditioner's controller to configure the initial settings.
VRV
F1 F2 P1
P2
b
VAM 1
F1 F2
VAM 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)
VRV VRV indoor unit
VAM 1 VAM heat reclaim ventilation unit 1
VAM 2 VAM heat reclaim ventilation unit 2
VAM
P1 P2
c
P1P2 P1 P2
b
P1 P2
a
draft – 07/02/2022 15:12
5 | Technical data
Service manual
95