Installation manual
5
VAM350~2000FC
Total Heat Exchanger
HRV (Heat Reclaim Ventilation)
4P415947-1A – 2017.08
System configuration
Independent system
Air conditioner linked operation system
System
Standard method
Related items in
Electric wiring
Independent system
• Up to 16 units can be controlled with the
remote controller for HRV. (A system with
two remote controls can be created in the
master/slave switching.)
• All HRV operations can be used and
indicated.
• Operation monitor output and humidifier
operation are possible using Adapter
PCB.
• Remote control cord should be procured
locally.
(Maximum cord length: 500 m)
"When connecting to
Remote controller for
HRV" on page 16
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 HRV can be
controlled.
• The HRV ventilation mode can be
operated independently when air
conditioners are not being used.
• Using the local setting of the remote
controller for air conditioners, various
settings such as precool/pre-heat
reservation on/off, ventilation flow rate,
ventilation mode, etc.
"Standard 1-group
linked-control
system" on page 16
Multi-group
(2 or more) linked
operation system
• 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.
"Linked control with
more than two
groups" on page 17
HRV
HRV
1
2
1
Remote controller
for HRV
2
2-wire cord
(produced locally)
VRV
HRV
1
2
1
Remote controller
for air conditioner
2
Remote controller
for air conditioner
VRV
VRV
VRV
VRV
HRV
HRV
1
2
5
5
5
5
3
4
6
1
Group 1
4
Group 4
2
Group 2
5
Remote controller
for VRV
3
Group 3
6
Distant control
adapter
NOTE
Adapter PCB for external input/output: BRP4A50A; Distant control adapter: KRP2A51 (installation box: KRP1B101).
Operation of two or more groups is not possible with direct duct connection.
With VAM types, the direct duct connection shown can also be selected for 1-group operation systems.
System
Standard method
Related items in
Electric wiring
Direct duct connection system
• The HRV will operate only when the air
conditioner fan is on.
• Other specifications are the same as
those of the standard system.
"Direct duct
connection system
for 1-group operation
system" on page 17
VRV
HRV
1
2
3
1
Remote controller
for air conditioner
2
Remote controller
for air conditioner
3
Duct
