- 17 -
3. Wiring configuration and DIP Switches – Fan coil systems
AO1
AO2
SW1
SW2
SW1.8 = Communication Protocol: ON – BACnet, OFF – MODBUS
SW1.4 = Enable/Disable 2
nd
heating stage: ON – Enable, OFF – Disable
SW1.5 = Chilled beam option (fan will not run with 1
st
stage cooling) – SW1.5 ON
SW2.1 = With/Without dehumidifier: ON – With, Off – Without
SW2.2 = Enable cool only mode: ON – Cool only, OFF – Cool and Heat
*SW2.3 = Enable lights button and use terminal 14 for lights output (not for F.H)
SW2.4 - SW2.6 – Not in use
VFS
= Fan VFS
F.H
= Floor heating
4-Pipe VFS (3S)
(HU only)
Heat 2
Cool
Heat 1
Fan VFS
Humidifier
0V OFF / 10V ON
8
7
6
5
4
3
2
1
6
5
4
3
2
1
4-Pipe 3S
(HU + DeHU)
Fan high
Fan medium
Fan low
Heat 2
Cool
Heat 1
8
7
6
5
4
3
2
1
6
5
4
3
2
1
Dehumidifier
0V OFF / 10V ON
Humidifier
0V OFF / 10V ON
Fan high
Fan medium
Fan low
4-Pipe VFS (3S)
(HU only) F.H
Heat 2***
(Floor heating)
Cool
Heat 1
(Heat valve)
Fan VFS**
Humidifier
0V OFF / 10V ON
8
7
6
5
4
3
2
1
6
5
4
3
2
1
4-Pipe 3S
(HU + DeHU) F.H
Fan high**
Fan medium**
Fan low**
Heat 2***
(Floor heating)
Cool
Heat 1
(Heat valve)
8
7
6
5
4
3
2
1
6
5
4
3
2
1
Dehumidifier
0V OFF / 10V ON
Humidifier
0V OFF / 10V ON
Fan high**
Fan medium**
Fan low**
** When floor heating active – the fan remains OFF.
*** In order to use floor heating on 1
st
stage, turn on
AUTO FAN (fan on demand) – see #1.7
11
12
13
14*
15
16
