Daikin VAM-FA Technical Data Manual page 71

15 Control systems
15 - 3 Basic patterns
Function
• The HRV unit operates of one of the indoor units
connected to the central control transmission line is in
operation.
• The various setting for the operation of HRV unit
should be set by the remote control for the indoor unit.
Collective / Individual operation
[The unified On / Off control]
• Each group can be controlled of "On / Off" individually.
• Each 16 groups can be controlled "On / Off"
collectively.
• The power supply terminal for the schedule timer is
provided.
[The schedule timer]
• The schedule timer can control collectively the
operation "ON / OFF" twice a day by weekly.
• Back-up power supply for 48 hours is provided, when
the power failure is occurred.
[Adapter PCB for remote control]
• The HRV units can be controlled "On / Off" collectively
by external input.
The interlocked operation
[Multi function centralized controller]
• It can control the operation "On / Off" individually or
collectively.
• The several group of the units can be controlled
collectively by zone.
• It can control the interlocked operation of the indoor
units and the HRV units in the same zone.
• The electrical terminal for the schedule timer is
provided.
• Heat reclaim ventilation • VAM-FA/FB
Nos. of the unit controlled and length of wiring
• A maximum of 64 groups of the units can be
controlled.
• The central control transmission line can be extended
up to 1000 m maximum.
• A maximum of 64 groups connected by the central
transmission line can be controlled.
• The central transmission line can be extended up to
1000 m maximum.
• A maximum of 64 groups connected by the
centralized transmission line can be controlled.
• The central transmission line can be extended up to
1000 m maximum.
• Ventilation • Heat reclaim ventilation
Cautions
• No direct duct connection is possible.
• Set "ON" for collective zone interlock setting.
• When you use the central controller, no direct duct
connection is possible.
[The unified On / Off control]
• Each group should be set the group number. (It
cannot be set by the remote control for HRV unit.)
• The power must be supplied.
[The schedule timer]
• When you use the schedule timer alone, it is
necessary to supply the power of DC16V, which can
be supplied from the printed circuit board of the nuit.
(from CN11 in case of HRV unit)
[Adapter PCB for remote control]
• The adapter PCB for remote control cannot be used
with other central controller. (It can be installed in the
either indoor unit or HRV unit.)
• Only KRP2A61 can be installed in the HRV unit.
(KRP2A2.A3 cannot be installed in the HRV unit
because of their size.)
• The initial setting by remote control for indoor unit is
needed. (The collective zone interlock setting should
be "On".)
However, if there is no indoor unit in the same zone
(only HRV units), the initial setting is not required.
• When you use the central transmission line, no direct
duct connection is possible.
[Multi function central controller]
• Each group should be set the group number for
central control. (It cannot be set by the remote
controller for HRV unit.)
• The power supply is needed.
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