11
12
13
14
15
16
SW1
SW2
Fan on/off: 110-230VAC, 2.5A max., PID valves, Humidifier, Dehumidifier: 0-10VDC. 5mA Not isolated
Control - Heat elements, Cool/Heat valves, Economizer: 110-230VAC, 0.3A max.
Wiring and DIP Switches – FC systems – 4-Pipe
4-Pipe,
1/2/3 Speeds fan
(1)
,
Heat valve PID,
Cool valve PID
Fan high
Fan medium
(or Economizer
(5)
)
Fan low
Heat element
(2)
(2
nd
stage heat)
Cool valve PID
(3)
Heat valve PID
(1
st
stage heat)
8
7
6
5
4
3
2
1
6
5
4
3
2
1
38
- 30 -
AO1
AO2
x
x
4-Pipe,
1/2/3 Speeds fan
(1)
,
Humidifier,
Dehum/Reheat for
Dehumidification
Fan high
Fan medium
(or Economizer
(5)
)
Fan low
Heat element
(2)
(2
nd
stage heat)
Cool valve
(3)
Heat valve
(1
st
stage heat)
8
7
6
5
4
3
2
1
6
5
4
3
2
1
40
Humidifier
Dehumidifier
(4)
(option - See SW2.3)
4-Pipe,
VFS Fan,
Cool valve PID,
Floor heating
Floor heating
(1
st
stage heat – no fan)
x
39
Cool valve PID
(3)
Fan VFS
8
7
6
5
4
3
2
1
6
5
4
3
2
1
Heat valve
(2
nd
stage heat)
x
x
Economizer
(5)
(option - SW2.6 ON)
(1)
SW1.1, SW1.2 = Fan speeds: 1 Speed (Low):
SW1.1 ON, SW1.2 OFF
2 Speeds (Low and High):
SW1.1 OFF, SW1.2 ON
3 Speeds (Low, Medium and High): SW1.1 OFF, SW1.2 OFF
(2)
SW1.4 = 2
nd
heating stage: ON – Enable,
OFF – Disable
(3)
SW1.5 = Chilled beam option ON – Enable chilled beam (fan will not run with cooling)
(4)
SW2.3 = Dehumidification: ON – Use dehumidifier, OFF – Use reheat for dehumidification
(5)
SW2.6 = Terminal 12:
ON – Economizer
OFF – Fan Med. (3 Speeds) / Terminal not in use (1/2 Speeds/VFS)
Important: Economizer will not work in 3 fan speeds configuration
4-Pipe,
Fan VFS,
Humidifier,
Reheat for
Dehumidification
Heat element
(2)
(2
nd
stage heat)
Cool valve
(3)
Heat valve
(1
st
stage heat)
41
Humidifier
Fan VFS
8
7
6
5
4
3
2
1
6
5
4
3
2
1
x
x
Economizer
(5)
(option - SW2.6 ON)
