139Appendixes
8.9 AHU Application with RS-485 Communication (optional)
Note
●
This application is designed to work with the single unit ONLY.
●
The air handler must also be compatible with RS-485 communication features. Consult with the
air handler manufacturer for additional guidelines and instructions.
NPE-A2 Series
Water Heater
Air Purge Valve
Mixing
Valve
COMM Cable
Outdoor Sensor
Expansion Tank
Circulator
DHW
Supply
Recirculation
Water
Cold Water
Supply
Air Eliminator
A/C or H/P
Condensing Unit
Thermostat
Check Valve
For details, contact the AHU manufacturer.
Note
System application drawings are intended to explain the system piping concept only. Refer to
“7.5.1.3 Setting the Application” on page 100 for communication setting.
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