ASME and National Board HLW Certified Heaters

The only ASME and NB HLW certified electric tankless water heaters in the world The energy efficient boiler alternative Meets new re-circ loop requirements Compact size saves floor space Extended lifecycle performance and lower operating costs   Select a size:               OVERVIEW     kW RANGE 63 – 144 kW     FLOW RANGE 1.5 – 40 GPM     STANDARD VOLTAGES 480V, 600V 3 Phase Delta   CN 63kW     kW RANGE 63 kW     FLOW RANGE 1.5 – 30 GPM     STANDARD VOLTAGES 480V, 600V 3 Phase Delta   CN 72 – 108kW     kW RANGE 72 – 108 kW     FLOW RANGE 1.5 – 30 GPM     STANDARD VOLTAGES 480V, 600V 3 Phase Delta   CN 126 – 144kW     kW RANGE 126 – 144 kW     FLOW RANGE 1.5 – 30 GPM     STANDARD VOLTAGES 480V, 600V 3 Phase Delta   SN 63kW     kW RANGE 63 kW     FLOW RANGE 1.5 – 25 GPM     STANDARD VOLTAGES 480V, 600V 3 Phase Delta   SN 72 – 108kW     kW RANGE 72 – 108 kW     FLOW RANGE 1.5 – 30 GPM     STANDARD VOLTAGES 480V, 600V 3 Phase Delta   SN 126 – 144kW     kW RANGE 126 – 144 kW     FLOW RANGE 1.5 – 40 GPM     STANDARD VOLTAGES 480V, 600V 3 Phase Delta

The Energy Efficient Boiler Alternative

Keltech’s CN and SN series electric tankless water heaters that range in output from 63kW (200,000 BTUs) to 144kW (490,000 BTUs) are HLW certified in accordance with the ASME Boiler and Pressure Vessel Code and meet the standards set by the National Board of Boiler and Pressure Vessel Inspectors for potable water heaters.

Keltech’s CN and SN series electric tankless water heaters are an ideal solution for engineers that need to specify a safe, energy efficient boiler alternative that meets the ASME and NB standards.

In fact, the CN and SN series are the only ASME and NB certified electric tankless water heaters in the world.

Learn more about SN series heaters for safety shower applications.

Learn more about CN series heaters for large industrial applications.

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Keltech achieves ASME HLW and NB certificates

Quality Assurance: Meeting the ASME and National Board Standards

To meet the strict manufacturing rules and safety procedures dictated by the ASME Boiler and Pressure Valve Code Standards, as well as the National Board of Boiler and Pressure Vessel Inspectors for potable water heaters, Keltech:

• Engineering design meets ASME standards
• Uses traceable and ASME approved materials and components
• Uses an AWS certified technician for brazing to ensure the highest level of craftsmanship
• Provides access to an ASME authorized third party inspector to ensure that the standards are met throughout all phases of the process
• Makes sure that pressure vessel testing is witnessed on site by an ASME authorized third party inspector
• Has filed its certified quality assurance manual on with ASME and the National Board of Boiler and Pressure Vessel inspectors.

The Benefits of Specifying an ASME and NB Keltech Heater

• Heaters perform at 1.5 times maximum operating pressure
• Meet the new recirculation loop safety requirements and new boiler standards
• Manufacturing process meets or exceeds state, national and international standards
• National Board and ASME certification makes the installation approval process easier

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Safety Features

• CN series Large Industrial tankless hot water heaters include a door activated kill switch
• SN series Safety Shower heaters include a patented purge system to adapt to rapidly changing flow rates
• SN series Safety Shower heaters safety only circuits monitor for over temperature conditions and ensure individual chambers do not exceed ANSI standards for tepid water temperature
• The SN series is ETL/cETL approved
• The SN series conforms to UL and CSA standards

SN and CN Series Heater Performance

• ASME and NB certified HLW heaters can reach outputs as high as 144kW, 40 GPM and 200° F
• Output ranges from 200,000 BTUs to 490,000 BTUs or 63kW to 144kW
• Standard voltage ranges in size and capacity from 480 volt three-phase Delta to 600 volt 3-phase Delta
• Water flow can be activated as low as 1.5 GPM
• CN and SN series heaters can heat water up to 40 GPM and provide a continuous flow of hot water
• Multiple heaters can be used in parallel to meet increased water flow or temperature rise requirements
• The CN and SN series heaters can be easily upgraded to meet the most extreme environments and rugged conditions

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On Demand Energy Efficient Water Heating

Keltech electric tankless heaters provide hot water when you need it but only when you need it.

Save energy: No need to heat water 24/7/365

Save water: No need to waste water waiting for it to heat to temperature

Precise Temperature Control

Keltech's Acutemp controller heats water temperature within +/- 1º F (.56º C) over a wide range of flow rates.

The ability to precisely control water temperature makes Keltech’s CN and SN series heaters the preferred choice for process heating applications — the energy efficient boiler alternative.

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Extended Lifecycle Performance

• Built to last featuring rugged industrial components constructed from copper and brass
• Redundant safeties protect the life of the heater
  • Premium incoloy heating element extends the life of the heater
  • Internal fusing solutions protect electrical components and reduce damage from overheating, voltage spikes, short circuits, and fires
  • Thermal fusing safeguards the tankless hot water system and shuts down when internal temperatures exceed safe limits
• NEMA 4 enclosures can be upgraded to NEMA 4x stainless steel for extra protection and extended performance

Lower Operating Costs

• No need to purchase expensive re-circ loops
• No need to purchase expensive mixing valves
• Reduced annual maintenance costs
  • no moving parts to fix
  • no sediment to flush (tankless)
• Reduced utility use
  • no need to heat water 24/7/365
  • no need to waste water waiting for it to heat to temp

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