Daikin VRV Service Manual

Si30-408 HRV-Related
Appendix 229
7. HRV-Related
7.1 Group Interlock Control
7.1.1 Single-group Interlocked Operation (Basic Pattern)
Purposes and
Functions

The remote controller for indoor unit can control the interlocked operation with the HRV unit,
and it can make an initial setting of the ventilation flow rate, the ventilation mode changeover
and fresh-up operation. The HRV unit can independently be operated, even if the indoor unit
is not in operation.
Note: 1. The remote controller should be connected to the terminal no. P1 and P2, the same as the
group control wiring of indoor units.
2. Since this is two remote controller system (for Indoor unit and HRV unit), the Master / Slave
setting is required.
Example of
Control Wiring
Switch Setting for
HRV Unit

No change is required. (as per factory setting)
Optional
Accessories
Required

None
Remote controller for Setting
Indoor unit Slave
HRV unit Master
X9A
X10A
X11A
J1 J2 F1 F2
P1 P2
P1 P2
JC
SS1
F1 F2
P1 P2
P1 P2
Indoor unit
HRV unit
Up to 500 m maximum
Remote controller
for HRV unit
(HC0025)

Daikin VRV Specifications

General

Brand	Daikin
Energy Efficiency	High
Control	Centralized and individual zone control
Inverter Technology	Yes
Type	Variable Refrigerant Volume (VRV)
Cooling Capacity	Varies by model
Heating Capacity	Varies by model
Refrigerant	R-32 or R-410A
Application	Commercial buildings, large residential spaces
SEER	Varies by model
HSPF	Varies by model
EER	Varies by model
COP	Varies by model
Sound Level	Varies by model
Indoor Unit Options	wall-mounted, ducted