Navien NPE-240A2 Installation Manual

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.

Navien NPE-240A2 Specifications

General

Type	Tankless
Fuel Type	Natural Gas or Propane
Energy Factor	0.96
Water Connection Size	3/4" NPT
Gas Connection Size	3/4" NPT
Voltage	120 V
Ignition Type	Electronic
Flow Rate	11.2 GPM
Vent Size	2"/3"
Installation Type	Wall Mounted
Venting	Direct Vent
Warranty	15-Year Heat Exchanger, 5-Year Parts, 1-Year Labor
Max Input	199, 900 BTU/h