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iQ1501 Floor Standing Commercial Tankless System
iQ1501 Floor Standing Commercial Tankless System
iQ1501 Floor Standing Commercial Tankless System
iQ1501 Floor Standing Commercial Tankless System
iQ1501 Floor Standing Commercial Tankless System
iQ1501 Floor Standing Commercial Tankless System

    iQ1501 Floor Standing 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


    • Turndown Ratio of 50:1 per unit
    • Cascade up to 4 units with common venting for a total of
    over 6000MBH and a 200:1 total turndown ratio

    • Type Indoor/Outdoor, Commercial, Floor Mounted, Tankless, Condensing, Fully Modulating, On-Demand Water Heater

      Fuel Preset for NG / LP convertible
      Minimum Input (BTU/hr) 30,000
      Maximum Input (BTU/hr) 1,501,000
      Maximum Output (BTU/hr) 1,380,920
      Thermal Efficiency 92%
      Turn Down Ratio (TDR) 50:1
      Water Inlet / Outlet Connections 2” Headers with 6” OD Flange
      Gas Inlet Connection 1-1/4” Gas Inlet With 4-5/8” OD Flange
      Condensate Drain Connection 3/4” Flex PVC
      Maximum Condensate Flow Rate (GPH) 10.8
      Dimensions H X W X D (Inches) 67.7 X 30 X 60.4 (66 CU. FT)
      Service Clearances Recommend 24” on all sides, 32” in the front
      Weight (LBS) 1025 LBS
      Venting Type Direct Vent (2 pipe - intake & exhaust), Power Vent (1 pipe - exhaust only)
      Venting Materials (USA) Sch. 40 PVC, Sch. 40 CPVC, Polypropylene, Stainless Steel (AL29-4C)
      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) 6” Ø
      Max Vent Length - Single Pipe / Power Vent* 65 ft (6”)
      Max Vent Length - Two Pipe / Direct Vent* 35 ft (6”)
      * 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
      Pressure Relief Valve (Select BTU/hr Input Rating to Match Model Max Input) 1”
      NG/LP - Min. Dynamic Gas Pressure (Full Fire) 2.5” (¾” 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 29 Amps, 48W (Standby)
      Internal Water Volume (gallons) 6

    Technical specification
    • Unique ref.iQ1501
    • Product familyiQ Series
    • Product groupCommercial Tankless System - Free Standing
    • 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