Dry Contact & 24 Volt Adaptor
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“B”, and it can also connect O/B of adaptor , while it needs to set adaptor to ensure
that the adaptor has the same meaning with the interface of 24VAC HVAC
thermostat.
(2) When the output single of 24VAC HVAC thermostat is the control command
for operation mode, such as heating, cooling or fan mode. The connection
method is shown as below:
Fig. 5.7 Schematic diagram of wiring between adaptor and thermostat
