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Connection Size
<br />CO Air Intake tD 2'
<br />0 Exhaust Gas vent
<br />Connection Size
<br />0 Hot Water Outlet (1)3/4"
<br />0 Recirculation Inlet' 433/4"
<br />0 Cold Water Inlet 413/4'
<br />0 Gas Inlet
<br />Condensate Outlet 411/2'
<br />..A.modell only
<br />irviavIerss
<br />Premium Condensing
<br />Tankless Gas Water Heater
<br />NPE Series Tankless Water Heaters
<br />Specification Sheet
<br />Dimensions Sp cifications
<br />Item NPE-150S NPE-180A NPE-1805 NPE-210A NPE-2105 NPE-240A NPE-240S
<br />Heat
<br />Capacity
<br />(Input)
<br />Natural Gas 18,000-
<br />120,000
<br />BTU/H
<br />15,000-150,000 BTU/H 19,900-180,000 BTU/H 19,900-199,900 BTU/H
<br />Propane Gas 15,000-150,000 BTU/H 19,900-180,000 BTU/H 19,900-199,900 BTU/H
<br />Efficiency
<br />Ratings
<br />UEF (for NG & Lin 0.96 0.96 0.97 0.96 0.97 0.96 0.97
<br />EF (Canada) for NG & LP) 0.97 0.97 0.99 0.97 0.99 0.97 0.99
<br />(DHW)
<br />35°F(1 9°C) Temp Rise 6.8 GPM
<br />(26 Urn) 8.4 GPM (32 Urn) 10.1 GPM (38 Urn) 11.2 GPM (42 Urn)
<br />Flow Rate 5.3 45°F(25°C) Temp Rise GPM
<br />120 Urn) 6.5 GPM 125 Urn) 7.8 GPM (30 Urn) 8.7 GPM 133 Urn)
<br />67°F(36°C) Temp Rise 3.2 GPM
<br />(12 Urn)
<br />4.3 GPM
<br />(16 Urn)
<br />4.2 GPM
<br />(16 Urn)
<br />5.0 GPM
<br />(19 Urn)
<br />5/ GPM
<br />(20 Um)
<br />5.6 GPM
<br />(21 Urn)
<br />5.7 GPM
<br />(22 Um)
<br />Dimensions 17.3"(W) x 27.4"(H) x 13.2"(D)
<br />Weight 55 lbs
<br />(25kg)
<br />75 lbs
<br />(34kg)
<br />67 lbs
<br />(30kg)
<br />82 lbs
<br />(37 kg)
<br />75 lbs
<br />(34kg)
<br />82 lbs
<br />(37 kg)
<br />75 lbs
<br />(34kg)
<br />Installation Type Indoor or Outdoor Wall-Hung
<br />Venting Type Forced Draft Direct Vent
<br />Ignition Electronic Ignition
<br />Water Pressure 15-150 PSI
<br />Natural Gas Supply Pressure
<br />(from source) 3.5 in WC-10.5 in WC
<br />Propane Gas Supply Pressure
<br />(from source) 8 In WC-13in WC
<br />Natural Gas Manifold Pressure
<br />(min-max)
<br />-0.04 in WC -
<br />-0.38 in WC -0.04 in WC - -0.84 in WC -0.05 in WC --0.36 in WC -0.05 in WC - -038 in WC
<br />Propane Gas Manifold Pressure
<br />(min-max)
<br />-0.04 in WC -
<br />-0.42 in WC -0.05 in WC - -0.50 in WC -0.10 in WC - -0.66 in WC -0.10 in WC --0.78 in WC
<br />Minimum Flow Rate 0.5 GPM (1.9 Um), <0.01 GPM (0.04 Urn) option for"A" models*
<br />Connection
<br />Sizes
<br />Cold Water Inlet 3/4 in NPT
<br />Hot Water Outlet 3/4 in NPT
<br />Gas Inlet 3/4 in NPT
<br />Power
<br />Supply
<br />Main Supply 120V AC, 60Hz
<br />Maximum Power
<br />Consumption 200W (max 2A), 350W (max 4A) with external pump connected
<br />Materials
<br />Casing Cold Rolled Carbon Steel
<br />Heat Exchangers Primary Heat Exchanger Stainless Steel
<br />Secondary Heat Exchanger: Stainless Steel
<br />Venting
<br />Exhaust 2" or 3" PVC, CPVC, Polypropylene
<br />2" or 3" Special Gas Vent Type BH (Class II, A/B/C)
<br />Intake 2" or 3" PVC, CPVC, Polypropylene
<br />2" or 3" Special Gas Vent Type BH (Class II, A/B/C)
<br />Vent Clearances 0" to combustibles
<br />Safety
<br />Devices
<br />Flame Rod, APS, Ignition Operation Detector, Water Temperature High Limit Switch, Exhaust Temperature High Umit Sensor,
<br />Power Surge Fuse
<br />Available for "A" models configured In an optional Comforg low recirculation mode. Additional energy use will occur when using recirculation.
<br />Gas-fired, tankless, condensing, wall-mounted water heater(s) shall be direct vent NPE Series models as manufactured by Navien, Inc. and are certified by CSA Group to the
<br />latest edition of ANSI standard Z21.10.3/CSA 4.3. Water heater(s) shall have a 15-year limited Heat Exchanger warranty and 5-year limited Parts warranty (8-year Heat
<br />Exchanger and 5-year Parts for Commercial use) per Navien Limited Warranty. Unit(s) shall be designed to burn natural gas and can be for use with propane when a Field
<br />Conversion Kit is installed. Water heater(s) shall have a nominal flow rate capacity of GPM/GPH at °F rise with rated input of BTU/hr. Water
<br />heater(s) shall be vented with 2" PVC/CPVC vent pipe at a distance not to exceed 60' (or equivalent) with each elbow equal to 8' of pipe length or 3" PVC/CPVC vent pipe at a
<br />distance 01 150' (or equivalent) with each elbow equal to 5' of pipe length. Water heater(s) is rated for 150 PSI working water pressure and 300 PSI test pressure. Gas supply
<br />pressure shall be 3.5" to 10.5" WC for natural gas and 8.0" to 13.0" WC for propane. Unit(s) shall have a steel case, dual stainless steel heat exchangers, eco premixed burner,
<br />negative pressure gas valve, dual venturi, 3/4" inlet gas connection, 3/4" brass inlet/outlet water connections, water holding capacity of 0.6 gallons for the NPE-150S, 1.0
<br />gallon for the NPE-180A model (0.7 gallons for NPE-180S model), 1.2 gallons for the NPE-210A/NPE-240A models (0.7 and 0.9 gallons for NPE-210S and NPE-240S models
<br />respectively), and a condensate collector. The NPE-150S model weighs 55 lbs, the NPE-180A model weighs 75 lbs (NPE-180S weighs 67 lbs), and the NPE-210A/NPE-240A
<br />models weigh 82 lbs (NPE-210S and NPE-240S weigh 75 lbs). Unit(s) shall include features such as an adjustment for installations at high elevation, temperature lockou4 and
<br />temperature options from 98-120°F in 1°F intervals and 125-140°F in 5°F intervals. The unit(s) shall include additional temperature options of 150-180°F in 10°F intervals,
<br />and 182°F for high temperature commercial applications. Al! NPE "A" models shall include an internal circulation pump and 0.5 gallon buffer tank The water heater(s) shall
<br />be controlled by an internal circuit board that monitors the inlet and outlet temperatures with installed thermistors, sensing and controlling flow rate to set point temperature
<br />with air-fuel ratio controls in order to maintain thermal combustion efficiency. Unit(s) shall include safety features such as flame sensor system, high limit sensors, overheat
<br />prevention device, freeze protection mode, and fan motor rotation detector. Multi-system (cascade) applications that require 2 to 16 units shall be installed by connecting the
<br />units using cable-only connections (Ready-Link). Cascade systems can be common vented with up to 8 units when a Common Vent Backflow Damper Collar Kit is
<br />installed. The water heater(s) exceeds the energy efficiency requirements ofASHRAE 90.1-2013 and is listed by SCAQMD rule 11462 (Type 1) for Low NOx that complies with
<br />14 ng/j or 20 ppm NOx requirements @3% 02.
<br />'Navien reserves the right to change specifications at anytime without prior notice
<br />Navien, Inc. 20 Goodyear, Irvine, CA 92618 Ph: (949)420-0420 Fax: (949)420-0430 www.Navien.com Rev. 11/16
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