Heat element (2
nd
stage)
Cool/Heat valve
22
23
Fan VFS
Fan speeds
Economizer
26
27
28
29
FC Configurations for 2-Pipe systems
FC Configurations for 2-Pipe systems without humidification/dehumidification
FC Configurations for 2-Pipe systems with humidification/dehumidification
Heat element (2
nd
stage)
Cool/Heat valve
Humidifier
Cool/Heat valve PID
Fan VFS
Fan speeds
Economizer
- 18 -
24
25
Cool/Heat valve PID
Configuration:
Outputs
Configuration:
Outputs
or
Yes
Option
Dehumidifier
Reheat
Dehumidify
2 3
1
2 3
1
2 3
1
2 3
1
2 3
1