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Low Voltage Terminal
Description
Notes
Com
Connects to outdoor
appliance.
S1
Compressor Stage 1
Connects to outdoor
appliance.
S2
Compressor Stage 2
Connects to outdoor
appliance (2nd Stage if
applicable).
Humidifier
Com
Humidifier
24VAC powered
Closes to activate the
humidifier.
HUM
Humidifier
De-humidifer
Com
De-humidifier
24VAC powered
Closes to activate the de-
humidifier.
DEH
De-humidifier
OpenTherm
OpenTherm Master
To X-13 (1-2) on boiler (IBC
SFC/SFB series)
The air handling appliance
(master) communicates to
(controls) the boiler
(subordinate).
OpenTherm Slave
From OpenTherm thermostat
The thermostat (master)
controls the air handling
appliance (subordinate).
Note
OpenTherm is a standard communications protocol used in central heating systems for the
communication between a central heating device and thermostat.
15
Thermostat connections
Содержание AHU Series
Страница 1: ...INSTALLATION OPERATING MANUAL Air Handling appliances AHU 800 AHU1200 AHU 1600...
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Страница 5: ...5 3 Fault Codes 67 Air handling appliance parts diagram 70 3...
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