Rooftop Unit Applications; For Rooftop Units - Daikin BACnet Series Installation Manual

Rooftop Unit Applications

This section covers applications for rooftop units.
Roof Top Unit – Two-Stage Gas Heat and Two-Stage DX Cooling
• Fan status switch (FST) and discharge air temperature (DAT)
and outdoor air temperature (OAT) sensors are optional.
They are typically used only when the BACnet™ Thermostat is
connected to a network.
• The remote temperature sensor (RS) is optional.
• For single stage heating, do not connect W2.
• For single stage cooling, do not connect Y2.
• Connect outputs to 24 volt AC pilot duty inputs.
• For additional details on connecting sensors, see Connecting Inputs
on page 7.
• For additional details on connecting the fan and valves, see
Connecting Outputs on page 8.
Figure 10: Rooftop Unit Wiring Details—Two-Stage Gas Heat And Two-Stage DX Cooling
IO-DAPPS www.daikinac.com
Sequences of Operation
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