3
1
15
• Ventilation • Heat reclaim ventilation
73
• Heat reclaim ventilation • VAM-FA/FB
15 Control systems
15 - 3 Basic patterns
15 - 3 - 3 The interlocked operation system
Interlocked operation with 2 or more group of VRV system
Purposes and functions
• When the HRV unit is interlocked to 2 or more group of
indoor units, the HRV unit operates, if one of indoor unit
in groups is in operation. The HRV unit can also be operated
independently by remote control for indoor unit, even if the
indoor unit is not in operation.
Cautions
1. It is not necessary to set the group number for central
control.
2. One adapter PCB for remote control should be installed in
the one of the unit connected to the central transmission
line.
(When you install an adapter PCB for remote control in the
indoor unit, select the applicable model number of Adapter
PCB to be installed.)
Example of control wiring
Note:
The central transmission line can be extended up to 1000 m
maximum.
Switch setting for HRV unit
The initial setting by the remote control for indoor unit or HRV unit.
Optional accessories required
• Adapter PCB for remote control: KRP2A61
To Next Page
Loading...
