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NPE-240A
NPE-240A
NPE-A Series

Navien NPE-240A Condensing Tankless Water Heater

(226 customer reviews)

  • Max Input: 199,900 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
Categories: , Tag:

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.

Navien NPE-240A Condensing Tankless Water Heater Brochure

Navien NPE-240A Condensing Tankless Water Heater Manual

Navien NPE-240A Condensing Tankless Water Heater Spec Sheet

NPE-Advanced Series Condensing Tankless Water Heaters

Item
NPE-240A
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 19,900 – 199,900 (BTU/H)
Propane gas 19,900 – 199,900 (BTU/H)
Efficiency Ratings UEF (NG & LP) 0.96
EF (Canada NG & LP) 0.97
Flow rate (DHW) 35°F (19°C) temp rise 11.2 GPM (42.4 L/m)
45°F (25°C) temp rise 8.7 GPM (32.9 L/m)
67°F (37°C) temp rise 5.6 GPM (21.2 L/m)
Dimensions 17.3″ W x 27.4″ H x 13.2″ D
Weight 82lbs (37kg)
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) -0.05″ WC to -0.58″ WC
Propane gas manifold pressure (min-max) -0.1″ WC to -0.78″ 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
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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.

comfortflow-unit

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.ComfortFlow

Front Panel Control Center

Front Panel Control Center

  • Front Panel Control CenterSelf-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

comfortflow-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

remote

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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