Daikin VRV - Page 247

Si30-408 HRV-Related
Appendix 243
7.5.2 Collective Operation (Schedule Timer DST301B61)
Purposes and
Functions

A maximum of 128 units can be controlled the collective operation / stop by weekly
schedule.
Cautions: 1. The setting of group number for central control is not required.
2. The HRV unit judges the ventilation mode individually.
3. The power supply for the schedule timer can be supplied from the PCB of the unit. (X18A for
the indoor unit and X11A for the HRV unit)
Example of
Control Wiring
Switch Setting of
the HRV Unit
The initial setting is required by the remote controller for the indoor unit.

Collective zone interlock setting. . . . . . . . . . . . . . . . . . . . "OFF" (Factory setting)
Optional
Accessories
Required

Schedule timer DST301B61
X9A
X10A
X11A
J1 J2
X18A
F1 F2
P1 P2
P1 P2
JC
SS1
F1 F2
P1 P2
P1 P2
X9A
X10A
X11A
J1 J2 F1 F2
P1 P2
P1 P2
JC
SS1
F1 F2
P1 P2
P1 P2
D1
D2
F1 F2
TeS1
Schedule timer
Connecting line can be extended
up to 1000 m maximum.
Power supply
DC 16V
Indoor unit
HRV unit
Indoor unit
HRV unit
(HC0037)