Navien NPE-180A Condensing Tankless Water Heater
- Max Input: 150,000 BTU/H
- Indoor or outdoor wall-hung
- Residential/Commercial
- ½ gas pipe capable up to 24′
- Field convertible gas system
- Ultra condensing efficiency
- Dual stainless steel heat exchanges
- Low NOx emissions (20ppm)
- SCH 40, 2″ venting up to 60′
- Cascading capable
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NPE-Advanced
The most advanced condensing tankless water heaters in the industry with exclusive ComfortFlow® technology for continuous hot water.
- Exclusive ComfortFlow® internal recirculation pump and buffer tank.
- Earn up to 3 LEED points with recirculation.
- Lower the HERS home index score.
- Wi-Fi enabled with NaviLink® add-on.
- Optional HotButton™ on demand control kit.
- 2013 AHR Innovation Award Winner.
NPE-Advanced Series Condensing Tankless Water Heaters
Item |
NPE-180A |
Summary |
- ½ gas pipe capable up to 24′
- Field convertible gas system
- Ultra condensing efficiency
- Dual stainless steel heat exchanges
- Low NOx emissions (20ppm)
- SCH 40, 2″ venting up to 60′
- Cascading capable
|
Heat Capacity (input) |
Natural gas |
15,000 – 150,000 (BTU/H) |
Propane gas |
15,000 – 150,000 (BTU/H) |
Efficiency Ratings |
UEF (NG & LP) |
0.96 |
EF (Canada NG & LP) |
0.97 |
Flow rate (DHW) |
35°F (19°C) temp rise |
8.4 GPM (31.8 L/m) |
45°F (25°C) temp rise |
6.5 GPM (24.6 L/m) |
67°F (37°C) temp rise |
4.3 GPM (16.3 L/m) |
Dimensions |
17.3″ W x 27.4″ H x 13.2″ D |
Weight |
75lbs (34kg) |
Installation Type |
Indoor or outdoor wall-hung |
Venting Type |
Forced draft direct vent |
Ignition |
Electronic ignition |
Water Pressure |
15.0-150.0 psi |
Natural gas supply pressure (from source) |
3.5″ WC to 10.5″ WC |
Propane gas supply pressure (from source) |
8″ WC to 13″ WC |
Natural gas manifold pressure (min-max) |
-0.04″ WC to -0.84″ WC |
Propane gas manifold pressure (min-max) |
-0.05″ WC to -0.5″ WC |
Minimum flow rate |
0.5 GPM (1.9 L/m), < 0.01 GPM (0.04 L/m) option for “A” models* |
Connection Sizes |
Cold water inlet |
3/4″ |
Hot Water Outlet Size |
3/4″ |
Gas inlet |
3/4″ |
Power Supply |
Main supply |
120V AC, 60Hz |
Maximum power consumption |
200W (max 2A), 350W (max 4A) with external pump connected |
Materials |
Casing |
Cold rolled carbon steel |
Heat exchangers |
Primary heat exchangers: stainless steel; secondary heat exchangers: stainless steel |
Venting |
Exhaust |
2″ or 3″ PVC, CPVC, polypropylene / 2″ or 3″ special gas vent type BH (Class II, A/B/C) |
Intake |
2″ or 3″ PVC, CPVC, polypropylene / 2″ or 3″ special gas vent type BH (Class II, A/B/C) |
Vent clearances |
0″ to combustibles |
Safety Devices |
Flame rod, APS, ignition operation detector, water temperature high limit switch,exhaust temperature high limit sensor, power surge fuse |
Comfort Flow
Exclusive built-in recirculation system included on all NPE-A models.
Navien ComfortFlow® is the first and only system that incorporates a built-in insulated buffer tank and recirculation pump.
The buffer tank eliminates the “cold water sandwich” effect and issues of minimum flow rates commonly found in other tankless water heaters. The recirculation pump saves on water bills by reducing the time to get hot water. When activated, the optional ComfortFlow mode results in additional energy usage.
ComfortFlow® recirculates hot water through supply lines, eliminating wait time for hot water.
Front Panel Control Center
Front Panel Control Center
- Self-diagnostics.
- Displays temperature and water flow rate.
- Displays status of cascade operation.
- Convertible display from °F to °C.
- User Friendly Interface.
- Easy setup.
Units
Cascade up to 16 units withNavien Ready-Link® technology.
- With Navien’s Ready-Link® cascading technology, when a unit gets up to 80% capacity the next unit will turn on to help meet requirements. The flow on demand ratio will continue until all 16 units are generating hot water as needed. The Navien cascading system also balances out the workload of each unit for longer life.
Common vent up to 8 units
- Building penetrations are reduced with Navien’s common venting feature.
Optional Wi-Fi remote control system
Optional Wi-Fi remote control system
NaviLink makes it easy to communicate with your Navien systems anywhere internet service is accessible. The NaviLink module attaches easily to any new or existing* Navien NPE Series tankless water heater, NCB-E Series combi‐boiler and NHB Series boiler.
Optional hot water
Optional hot water activation
system for all NPE-A units
At the push of a button, the Navien HotButton hot water system activates the internal recirculation pump and gas fired burner to heat water in the supply lines to provide hot water whenever it’s needed.
Optional H2Air
H2Air Kit optional combination space
heating and domestic hot water system
The H2Air Kit utilizes the NPE-A pump to circulate the hot water for the hydronic air handler. This removes the need to purchase an additional circulator for the heating system.
Designed for retrofit and new construction, the Navien H2Air Kit™ includes an add-on controller to integrate space heating and DHW between any NPE-A series tankless water heater and a hydronic air handler.
Optional Remote Control
Optional Remote Control
- Hot water temperature control.
- Recirculation timer setting.Function to set the number of
- initial activating water heaters for cascade system.
- Temperature set-up for cascade system with external tanks.
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