HC21
Fan VFS,
Humidifier,
Reheat for
Dehumidification
11
12
13
14
15
16
Heat element 2
(2
nd
stage heat)
8
7
6
5
4
3
2
1
6
5
4
3
2
1
SW1
SW2
Fan on/off: 110-230VAC, 2.5A max., Fan VFS, Humidifier: 0-10VDC. 0.5mA Not isolated
Control - Heat elements, Heat pump, Compressors, Economizer: 110-230VAC, 0.3A max.
Wiring and DIP Switches – AC systems
21
- 25 -
Compressor
(3)
AO1
AO2
Humidifier
Fan VFS
Heat element 1
(2)
(1
st
stage heat)
x
x
Economizer
(5)
(option - SW2.6 ON)
(2)
SW1.4 = HC (Not Heat pump): ON – Electrical heater,
OFF – Oil/Gas heater (no fan)
(3)
SW1.5 = Compressor delay: ON – Disable compressor delay, OFF – Enable compressor delay
(5)
SW2.6 = Terminal 12:
ON – Economizer
OFF – Terminal not in use
