Navien H2Air ComfortAir+ Kit AHU Optimizer PNBD-000001, NPE-A models
Combination space heating and DHW system using NPE-A Series condensing tankless water heaters
The Navien H2Air ComfortAir+ Kit is an add-on accessory for Navien NPE-A Series tankless water heaters. It creates a system with high-efficiency space heating and endless domestic hot water.
H2Air is compatible with hydronic air handler models that require W1/W2/R terminals along with single or dual-stage thermostats (self-powered thermostats only). The Outdoor Reset Sensor that's included provides optimum efficiency and performance for space heating.
System requirements and limitations
♦ Only compatible with NPE-180A, NPE-210A and NPE-240A units produced on or after May 31, 2014
Refer to the AHU manufacturer's specifications to determine the proper output capacity.
→ Choose between priority for domestic hot water or simultaneous domestic hot water and heating
Included with the purchase of the H2Air Kit
• Controller (part number KDO-A100)
H2Air Installation Example
The NAVIEN, KD NAVIEN, H2Air and ComfortAir+ trademarks are the property of Navien America, Inc. and/or KyungDong Navien.