Daikin VAM1000J7VEB, Installer And User Reference Manual

Page: 21 / 48

7 System configuration
Installer and user reference guide
21
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1 – 2017.08
Controller
Purposes and applications Description of the system Central user
interface
Unified ON/
OFF controller
Schedule timer User interface
for heat
reclaim
ventilation unit
User interface
for indoor unit
Operation/stop
Available functions in case of a centralised 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 user interface for heat reclaim ventilation unit is NOT used)
▪ Air flow rate mode changeover: normal mode/fresh-up mode (when user interface for heat reclaim ventilation unit is installed)
▪ Pre-cool/pre-heat operation: initial setting required
▪ Nighttime free cooling operation: initial setting required
▪ Malfunction display
For an overview of settings, see "8.2 List of settings" on page 24 .
a Unified ON/OFF controller, Schedule timer, Central user interface
Heat reclaim ventilation unit
Indoor unit
User interface
User interface
7.2 Independent system
System Standard method Related items in electric wiring
▪ Up to 16 units can be controlled with the user interface (a system with 2 remote
controls can be created in the master/slave switching).
▪ All heat reclaim ventilation unit operations can be used and indicated.
▪ Remote control cord should be procured locally (cord length: up to 500 m).
See "8.3.2 Independent system" on
page 29
Heat reclaim ventilation unit
User interface
7.3 Interlocked system
System Standard method Related items in electric wiring
Combined
operation
system with
VRV
systems
and Sky-air
series 1-group
linked
operation
system ▪ A combined total of up to 16 air conditioners and the heat reclaim ventilation unit can
be controlled.
▪ The ventilation mode can be operated independently when air conditioners are NOT
used.
▪ Using the local setting of the user interface for air conditioners, various settings such
as pre-cool/pre-heat reservation on/off, ventilation flow rate, ventilation mode, etc can
be chosen.
See "8.3.3 1-group linked-control
system" on page 29
Multi-group
linked
operation
system
a
▪ Since all VRV units are connected to a single line in view of installation, all VRV units
are subjects for operation.
▪ If there are problems operating all VRV units, do NOT use this system.
▪ Up to 64 groups of the units can be controlled.
▪ The central control transmission line can be extended up to 1000 m.
▪ A direct duct connection is NOT possible.
▪ Set ON for collective zone interlock setting.
▪ Adapter PCB for remote control: KRP2A51 (One adapter PCB should be installed in
either the heat reclaim ventilation unit or the indoor unit).
See "8.3.4 Linked control with more
than 2 groups" on page 29
Direct duct
connection
system ▪ The heat reclaim ventilation unit will operate ONLY when the air conditioner fan is on.
▪ Other specifications are the same as those of the standard system.
See "8.3.5 Direct duct
connection" on page 30
a Adapter printed circuit board for remote control
Heat reclaim ventilation unit
Indoor unit
User interface