Daikin VAM 150FAVE Service Manual page 67

Supplementary Explanation
1.1.3 Operation Changeover Control
For group control of systems containing heat recovery ventilation units and air conditioners (VRV system),
remote controllers of air conditioners are connected with remote controllers of new heat recovery
ventilation units. In such system, both remote controllers display "Operation changeover control" according
to the ON/OFF of cooling/heating selection privilege.
The following diagram shows the display ON/OFF condition determined by the unit
combination.
Example of
"Operation
changeover
control" display
Display ON/OFF
condition by
connection type
Heat recovery ventilation unit
only
and cooling/heating
Heat recovery ventilation unit +
selection privilege
Air conditioner (VRV system)
Note: Note 1:
Only master remote controller can display flashing "Operation changeover control" when cooling/heating
selection privilege is not set.
58
New heat recovery
Air conditioner (VRV system)
ventilation unit
P1, P2
"Operation changeover
control"
Remote controller for
air conditioner
(Slave setting)
Connection type
Cooling/heating selection privilege not set
Cooling/heating selection privilege ON
Cooling/heating selection privilege OFF
System A
Without selection privilege
"Operation changeover
control"
Remote controller of
new heat recovery ventilation unit
(Master setting)
"Operation changeover control" display
No display
SiE71-202
System B
With selection privilege
(No display)
(HL043)
Flashing (Note 1)
No display
Display
Supplementary Explanation