Watts Aerco INN 1060N - Ducted Combustion Air

Innovation - Edge [i] Installation, Operation, Maintenance Manual
CHAPTER 2 – INSTALLATION
OMM-0143_A • GF-216 • 9/6/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 34 of 170
2.15 DUCTED COMBUSTION AIR
See the Innovation-Edge Venting and Combustion Air Design Guide (TAG-0090, GF-5056).
The AERCO Innovation Water Heater is UL listed for 100%-ducted combustion air. For ducted
combustion air installations, the inlet air ductwork must then be attached directly to the unit’s air
inlet.
In a ducted combustion air application, the combustion air ducting pressure losses must be
considered when calculating the total maximum allowable venting run. When using the heater in
a ducted combustion air configuration, each unit must have a minimum 6-inch (15.24 cm)
diameter connection at the unit.