• Heat reclaim ventilation • VAM-FA/FB
1
15
• Ventilation • Heat reclaim ventilation
64
15 Control systems
15 - 2 Introduction of control system
The control systems introduced here is for the HRV unit adopting the high speed and high performance transmission system (DIII-NET), the same as
the VRV systems and SkyAir series,
Description of system
1. A remote control for HRV unit can be connected as the 2nd remote control. In addition to air volume control, selection of ventilation mode and
Fresh up mode is available.
2. In case of installing Indoor unit remote control only, initial setting is required for the setting of above function. However, in case of installing both
indoor unit remote control and HRV unit remote control, initial setting is not required.
Contol system
Purposes and
applications
Description of system
Control system
Controller Function
Central remote control
Unified On / Off controller
Schedule timer
Remote control for HRV unit
Remote controller for indoor unit
Operation / Stop
Ventilation
mode
changeover
Air flow rate changeover (High / Low)
Air flow rate mode changeover
(normal mode / fresh-up mode)
Precool / preheat operation
Malfunction display
Automatic
Manual
Independent
• Basic method to
operate HRV unit
(Operation by
exclusive remote
control for HRV
unit)
Interlocked operation
• Interlocked
operation with
indoor unit by
remote control for
indoor unit
• The HRV unit can
also be operated
independently by
the remote control
for indoor unit,
even if indoor unit
is not in operation.
The HRV unit
cannnot be
operated
independently
when the duct is
connected directly
to the indoor unit.)
*1
Initial setting
required
*2
Centralized control
[Unified On / Off
controller]
• A maximum of
16 groups can be
controlled of
“On / Off” by one
unified On / Off
controller.
(Note)
Up to 4 unified ON /
OFF controllers can
be installed in one
system.
[Schedule timer]
• One schedule timer
can control the
weekly schedule of
up to 128 units.
[Central remote
control]
• Up to 64 groups of
the units can be
controlled
individually by one
central remote
control.
(Only when remote control for HRV unit is used)
(Initial setting required when remote control
for HRV unit is not used)
(HC0018)
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