Daikin VAM2000J8VEB - System configuration; 16.1 About control systems

16 | System configuration
Installer and user reference guide
64
VAM350~2000J8VEB
Heat reclaim ventilation unit
4P664012-1 – 2021.08
16 System configuration
Table of Contents
16.1 About control systems............................................................................................................................................................ 64
16.2 Independent system............................................................................................................................................................... 65
16.3 Linked operation control system............................................................................................................................................ 65
16.4 Central control system ........................................................................................................................................................... 66
16.5 EKVDX option .......................................................................................................................................................................... 67
16.1 About control systems
Independent system control system Central
controller
Unified ON/OFF
controller
Schedule timer Controller for
VAM
Controller for air
conditioner
Operation/stop
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
— — — ◯ ◯ ◯
a
b
Linked operation control system Central
controller
Unified ON/OFF
controller
Schedule timer Controller for
VAM
Controller for air
conditioner
Operation/stop
▪ 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 settings"[472].
— — — — ◯ ◯
a
b b
c
Central control system Central
controller
Unified ON/OFF
controller
Schedule timer Controller for
VAM
Controller for air
conditioner
Operation/stop
▪ 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 settings"[472].
◯ ◯ ◯ ◯ ◯ ◯
a
a
d
a
b b
c c
a Controller
b Heat reclaim ventilation unit (VAM)
c Air conditioner
d Unified ON/OFF controller, Schedule timer, Central controller