Config. 16:
HC21
1 Speed fan,
Humidifier,
Dehumidifier
11
12
13
14
15
16
Heat element 2
(2
nd
stage heat)
Fan (1 speed)
Compressor
Humidifier
Dehumidifier
Config. 17:
HC11
1 Speed fan,
Humidifier,
Dehumidifier
Fan (1 speed)
Compressor
87654321
654321
SW3
SW1
87654321
Heat element
Economizer
(option – SW1.6 ON)
87654321
654321
Heat element 1
(1
st
stage heat)
87654321
654321
87654321
654321
Config. 18:
HP11
1 Speed fan,
Humidifier,
Dehumidifier
Fan (1 speed)
Heat pump
Config. 19:
HP21
1 Speed fan,
Humidifier,
Dehumidifier
Fan (1 speed)
Heat element
(2
nd
stage heat)
Humidifier
Dehumidifier
Humidifier
Dehumidifier
Humidifier
Dehumidifier
654321
Compressor
Heat pump
Compressor
JP3
JP2
3
Jumpers
JP2, JP3
for analog
outputs
1
3 1
JP3
JP2
3 1
3 1
JP3
JP2
3 1
3 1
JP3
JP2
3 1
3 1
- 30 -
Wiring and DIP switch/jumper configurations – AC systems
with Humidifier for dehumidifier
Outputs
Humidifier, Dehumidifier: 0-10 Vdc, 0.5 mA Not isolated
Control – Fan on/off, Heat elements, Heat pump, Compressors, Economizer: 24 Vac, 0.5A max
See drawing on page 21 for DIP switch and jumper locations.
(2)
(2) (2) (2)
(5)
Economizer
(option – SW1.6 ON)
(5)
(3) (3) (3) (3)
(4) (4) (4)
(2)
SW3.4 – HP (Heat pump): ON = Heat pump active in cool, OFF = Heat pump active in heat
HC (not heat pump): ON = Electrical heater, OFF = Oil/Gas heater (no fan)
(3)
SW3.5 – Compressor delay: ON = Disable, OFF = Enable
(4)
SW1.3 – Dehumidification: ON = Use dehumidifier, OFF = Use reheat for dehumidification
(5)
SW1.6 – Terminal 12 operation: ON = Economizer
OFF = Terminal not in use
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