Daikin VAM-FA Technical Data Manual page 84

15 Control systems
15 - 4 Applicable patterns
15 - 4 - 4 Examples of mistakes in wiring and system designing
It is necessary to install the remote control for
1
the transmission line.
<Part 1>
15
• When you connect the transmission line for the remote
control, the remote control should be installed on the
transmission line.
Example of control wiring
P1 P2
Indoor unit
No remote control
Reason
Because the signal through the transmission line is originated
from the remote control, there is no transmission signal to operate
the units, if the remote control is not installed.
82
• Heat reclaim ventilation • VAM-FA/FB
F1 F2 J1 J2 JC F1 F2
X11A
SS1
X14A
X9A
X15A
X10A
X17A
P1 P2
HRV unit
(HC0041)
• Ventilation • Heat reclaim ventilation
The centralized transmission line should be connected to
the indoor unit.
<Part 2>
• If the HRV unit is interlocked to the centralized control, the
central transmission line should be connected to the terminal
no. F1 and F2 of indoor unit.
Example of control wiring
To central control
F1 F2
P1 P2
Indoor unit
P1 P2
Remote control
for indoor unit
Reason
The information from the indoor unit cannot be transmitted to the
central control through the HRV unit. And also the information
from the central control cannot be transmitted to the indoor unit
through the HRV unit.
Centralized transmission line
J1 J2 JC F1 F2
X11A
SS1
X9A
X10A
P1 P2
HRV unit
(HC0042)