System Configuration; About Control Systems - Daikin VAM350J VEB Series User Reference Manual

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System configuration

16 System configuration
Table of Contents

16.1 About control systems

Independent system control system
Basic method to operate the VAM unit.
Available functions in case of an independent system control system:
▪ Ventilation mode changeover: automatic or manual
▪ Air flow rate changeover: high/low
▪ Air flow rate mode changeover: normal mode/fresh-up mode: initial setting required
▪ Malfunction display
Linked operation control system
▪ Linked operation with air conditioner by controller for air conditioner. Maximum 16 units.
▪ The VAM unit can also be operated independently by the controller for the air conditioner, even if the air
conditioner is NOT in operation. The VAM unit CANNOT be operated independently when the duct is
connected directly to the air conditioner.
Available functions in case of a linked operation control system:
▪ Ventilation mode changeover: automatic or manual
▪ Air flow rate changeover: high/low
▪ Air flow rate mode changeover: normal mode/fresh-up mode: initial setting required
▪ Precool/preheat operation: initial setting required
▪ Nighttime free cooling operation: initial setting required
▪ Malfunction display
For an overview of settings, see "17.2 Field
Central control system
▪ Unified ON/OFF controller: Maximum 16 groups of units.
▪ Schedule timer: 1 schedule timer can control the weekly schedule of 128 units.
▪ Central controller: Up to 64 groups of units can be controlled individually by 1 central controller.
Available functions in case of a central control system:
▪ Ventilation mode changeover: automatic or manual
▪ Air flow rate changeover: high/low
▪ Air flow rate mode changeover: normal mode/fresh-up mode (field setting required when controller for heat
reclaim ventilation unit is NOT used)
▪ Air flow rate mode changeover: normal mode/fresh-up mode (when controller for VAM unit is installed)
▪ Precool/preheat operation: initial setting required
▪ Nighttime free cooling operation: initial setting required
▪ Malfunction display
For an overview of settings, see "17.2 Field
Installer and user reference guide
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16.1 About control systems............................................................................................................................................................
16.2 Independent system...............................................................................................................................................................
16.3 Linked operation control system............................................................................................................................................
16.4 Central control system ...........................................................................................................................................................
16.5 EKVDX option ..........................................................................................................................................................................
settings" [ 4 72].
settings" [ 4 72].
a Controller
b Heat reclaim ventilation unit (VAM)
c Air conditioner
d Unified ON/OFF controller, Schedule timer, Central controller
Central Unified ON/ Schedule
controller OFF controller timer
— — —
Central Unified ON/ Schedule
controller OFF controller timer
— — —
c
a
Central Unified ON/ Schedule
controller OFF controller timer
◯ ◯ ◯
c
a
b
Controller for Controller for Operation/
VAM air
conditioner
◯ ◯
b
a
Controller for Controller for Operation/
VAM air
conditioner
— ◯
b b
Controller for Controller for Operation/
VAM air
conditioner
◯ ◯
c
d
a
b
a
VAM350~2000J*VEB*
Heat reclaim ventilation unit
4P664012-1A – 2024.01
64
65
65
66
67
stop
◯
stop
◯
stop
◯