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iN401 Slim Design Commercial Tankless System

iN401 Slim Design Commercial Tankless System

Commercial Tankless on-demand water heater


• Multiple Stainless (316L) Heat Exchangers
• Flexible-Floating Design, stress-relieving and thermal
shock resistant
• Built-in Redundancy - Multiple heat engines with individual controls
• Multi-Unit - Masterless cascading with common venting
• Gas Pressures - Operates on gas pressure range of 2.5"- 14" w.c.
• ASME-HLW Compliant
• Designed and Built in the U.S.
• 7" Color Touch Screen - access to usage data, troubleshooting, and parts wear
• Direct Cell-LTE Connectivity


• Turndown Ratio of 13.3:1 per unit.
• Cascade up to 2 units with common venting for a total of
over 1,600MBH and a 53:1 total turndown ratio

Keyword: Tankless

  • Type Indoor, Commercial, Floor Mounted, On-Demand Tankless Water Heater
    Fuel Preset for NG / LP convertible without additional parts
    Minimum Input (BTU/hr) 30,000
    Maximum Input (BTU/hr) 399,999
    Maximum Output (BTU/hr) 375,999
    Thermal Efficiency 94%
    Turn Down Ratio (TDR) 13.3:1
    Water Inlet / Outlet Connections 1-1/2” NPT
    Gas Inlet Connection 1-1/2” NPT
    Condensate Drain Connection 3/4” PVC
    Maximum Condensate Flow Rate (GPH) 2.8
    Dimensions H X W X D (Inches) 67.5 X 20 X 20 (15 CU. FT)
    Service Clearances Recommend 1” on all sides, 6” on the top, 12” in the front
    Weight (LBS) 345 LBS
    Venting Type Direct Vent (2 pipe - intake & exhaust), Power Vent (1 pipe - exhaust only, room air)
    Venting Materials (USA) Sch. 40 PVC, Sch. 40 CPVC, Polypropylene, Stainless Steel
    Venting Materials (Canada) Type BH Gas Vent Classes: II A (PVC), II B (CPVC), II C (Polypropylene), I (AL 29-4C SS)
    Vent Size (Diameter) 4” Ø
    Max Vent Length - Single Pipe / Power Vent* 250 FT
    Max Vent Length - Two Pipe / Direct Vent* 125 FT
    * Venting Note: From the maximum lengths above, deduct 5 ft. per 90° elbow and 2 ft. per 45° elbow
    Ignition Electronic Spark Ignition
    Temperature Range 100°F – 190°F
    Temperature Stability +/- 4°F
    Installation Location Ambient Temperature 40°F – 130°F
    Flame Rod, Thermal Fuse, Overheat Prevention Device, Fan Speed Monitor, Flue Temperature Monitor, Blocked
    Vent Detector, Dual Flame Sensing
    Water Pressure Min / Max (PSIG) 30 / 160
    NG/LP - Min. Dynamic Gas Pressure (Full Fire) 2.5” (non-corrugated, black iron)
    NG/LP - Maximum Static Gas Pressure 14”
    Gas Pressure for Adjustments 8” for NG, 11” for LP
    Electrical 120V AC, 60 Hz
    Power Consumption Max 9.5 Amps, 16W (Standby)
    Internal Water Volume (gallons) 1


Technical specification
  • Unique ref.iN401
  • Product familyNeuron
  • Product groupCommercial Tankless System - Free Standing Slim Design
  • TypeObject (single object)
  • Date of publishing2020-05-11
  • Edition number1
  • Material mainSteel
  • Designed inUnited States
  • Manufactured inUnited States
  • BIMobject CategoryHVAC - Water heaters
  • IFC classificationHeat Exchanger
  • ETIM CodeEC000392
  • ETIM NameInstantaneous water heater
  • UNSPSC nameCommercial water heaters
  • UNSPSC code40101826
  • Uniclass 2015 CodePr_60_60_96
  • Uniclass 2015 DescriptionWater heaters
  • CSI MasterFormat 2014 Code23 00 00
  • CSI MasterFormat 2014 TitleHeating, Ventilating, and Air Conditioning (HVAC)
  • OmniClass Number23-31 29 11
  • OmniClass TitleInstantaneous Hot Water Heaters
  • CSI UniFormat II CodeD3090
  • CSI UniFormat II TitleOther HVAC Systems & Equipment

Region availability

North America South America
Antigua and Barbuda
British Virgin Islands
Caribbean Netherlands
Cayman Islands
Collectivity of Saint Martin
Dominican Republic
Puerto Rico
Saint Kitts and Nevis
Saint Lucia
Saint Vincent and the Grenadines
Sint Maarten
The Bahamas
Trinidad and Tobago
Turks and Caicos Islands
U.S. Virgin Islands
United States