11
12
13
14
15
16
SW1
SW2
Fan on/off: 110-230VAC, 2.5A max., Fan VFS, Humidifier, PID valves: 0-10VDC. 0.5mA Not isolated
Control - Heat elements, Cool/Heat valves, Economizer: 110-230VAC, 0.3A max.
Wiring and DIP Switches – FC systems – 4-Pipe
- 31 -
AO1
AO2
4-Pipe,
1/2/3 Speeds fan
(1)
,
Cool valve PID
Humidifier,
Reheat for
Dehumidification
Fan high
Fan medium
(or Economizer
(5)
)
Fan low
Heat element
(2)
(2
nd
stage heat)
x
Heat valve
(1
st
stage heat)
42
Cool valve PID
(3)
Humidifier
8
7
6
5
4
3
2
1
6
5
4
3
2
1
4-Pipe,
1/2/3 Speeds fan
(1)
,
Heat valve PID
Humidifier,
Reheat for
Dehumidification
Fan high
Fan medium
(or Economizer
(5)
)
Fan low
Heat element
(2)
(2
nd
stage heat)
x
Cool valve
(3)
43
Heat valve PID
(1
st
stage heat)
Humidifier
8
7
6
5
4
3
2
1
6
5
4
3
2
1
(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
