Central Control System - Daikin VAM-FA8VE Technical Data Manual

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10.3 Central Control System

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• HRV • VKM-GA(M)V1
[Points to be noted for VKM-GA(M)]
There are following restrictions with VKM-GA(M) model due to its own controlling structure.
1. Stand alone system: No address setting is required because of its automatic addressing function
(corresponding multiple type for building P-board : Master).
Because it is under a group control, it is always required to connect to a remote controller. The structure
does not permit if no remote controller is connected. A direct connection to a duct is also prohibited.
2. Interlock system : No address setting is required because of its automatic addressing function (Indoor
unit : Master).
•
Basically, the interlocking with an air-conditioner is only made via connection to a remote controller
line (NP).
Interlocking of a remote controller group
•
Number of units connectable in case of a remote controller group
Because 2 pieces of controlling P-board have been built in a VKM-GAM model, count the remote
controller group as : 1 set = 2 units. The maximum number of units connectable to a remote controller
group is 16.
<Example>
How many units of VKM-GAM model can be connected within a single group?
In case of a group composed of (10 × indoor units + VKM-GAM), the maximum number of VKM-GAM is 3.
10 + 3 × 2 = 16 units
In case of 4 units ;
10 + 4 × 2 = 18 units
•
External contact point
If you want to start/stop through an external contact point, use external input terminals (T1 and T2).
* If you start/stop using T1 and T2 terminals, the entire remote controller group makes a start/stop.
Note 1) JC/J2 of ventilation P-board cannot be used. (Because only the ventilation P-board makes a
start/stop, no synchronized movement with the corresponding multiple type for building P-board
is assured.)
•
When carrying out a central connection, connect the central line to F1 and F2 only on the corresponding
multiple type for building P-board. Do not connect to F1 and F2 on the ventilation side. ( = Connect to the
terminal block X3M.)
An image sketch of internal wiring on the ventilation side
A1P
JC
Note 1)
J2
F1
Ventilation P-board
F2
P1 P2
Connection to central
line is prohibited.
•
In case of a central control, operation ON/OFF can be done separately by each zone. (In this case, zone
interlocked setting must be kept as the factory setting (17. 08. 01).)
• HRV • Heat Reclaim Ventilation
OK
NG (2 units are in excess)
Terminal block X3M
A2P
T1
T2
F1
Corresponding multiple
F2
type for building P-board
P1 P2
The display and operation of a
remote controller is the same as
a standard indoor unit.
F1
F2
Centralized units
P1
P2
Remote controller
for air-conditioner