HL Series - Commercial Heaters
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HL Series - Commercial Heaters Tankless Water Heating Solutions • 5-25 kW (17,000 - 85,304 BTUs) • Low flow activation options at .15 and .25 GPM (0.6 and 0.9 L-Min) • Certified Lead-Free Design • Variable Temp Heat Exchanger • Pressure Drop Advantage • NEMA 1 enclosure for 5-18 kW units • 3/4" connections • ETL certified to UL Standards • Liquid-Cooled Triac Switches • Surface Mounted Bi-Metal Thermostat with Manual Reset • Internal fusing (included) adds safety and permits single power connection Standard Equipment Tankless Water Heating Specifications Keltech, Inc. HL-Series Tankless Water Heaters are designed to accommodate most commercial fluid heating applications including: environments where demand is < 25kW and total flow is ≤ 7 GPM, and environments where lower activation flows are required: standard units are .5 GPM with options as low as .15 GPM. HL-Series units are also suited to applications where only single phase service is available or 3-Phase 208V, 240V and 480V, 50/60 Hz is required. HL Series 5-18 kW products include a NEMA 1 enclosure as standard, with NEMA 4 and 4X options available. HL-25 units are standard NEMA 4. Code Compliance and Certifications Temperature Controller Products marked with the Lead-Free logo comply with the Safe Drinking Water Act (SDWA) requirements of a weighted average of less than 0.25% lead content on wetted surfaces of pipes, pipe fittings, plumbing fittings, and fixtures. Keltech's PID Temperature Controller is more energy efficient and reliable than traditional microprocessors using staged elements. Power is infinitely variable, with no fixed inputs. The PID controller makes it possible to modulate the amount of power applied to the elements while also dispersing the required power evenly across all elements. This unique feature increases the product's life cycle. ETL listed to UL499 cETL listed to CSA-C22.2 No. 88 Heating Element Each heater features a heavy duty, low watt density, incoloy 800 sheathed resistive element. The Keltech design ensures greater protection, durability and resistance to scaling from hard water because water is only heated when flowing; this means sediment will not collect in the heat exchanger. Triac Switches The liquid cooled, triac switches provide silent switching which has a faster response than mechanical relays to assist in maintaining an accurate temperature. Electrical The HL-Series requires only one service feed per unit. Includes internal fusing as standard. Internal fusing provides superior protection so the incoming circuit can be higher than 48 amps (NEC). Keltech protects both hot sides of each heating element with fusing. Standard product selections contained within this document are third party CERTIFIED to NSF/ANSI 372 meeting the Lead-Free content requirement. Any product configured with custom options will be COMPLIANT with NSF/ANSI 372 meeting the Lead-Free content requirement. ABS Design Assessed intended for product to be installed on an ABS classed vessel, mobile offshore drilling units (MODU), or facility. This is a Tier 2 Approval that states that the product complies with the stated standards and must receive approval by a Surveyor or Engineer for the intended installation. Independent Safety The surface mounted bi-metal thermostat with manual reset acts as a fail-safe. In the event the temperature limit is exceeded, it must be manually reset before power is restored to the elements. Cabinet Enclosure Standard cabinet enclosure is NEMA 1 rated for 5-18 kW units and made from 18 gauge electro galvanized and powder coated steel. The HL-Series also features an optional 18 gauge NEMA 4 enclosure with ANSI 61 gray, corrosive resistant paint. The HL 25 kW unit comes standard in the 18 gauge NEMA 4 enclosure. The NEMA 4X enclosures are for harsher environments made from 16 gauge 304 stainless steel. The NEMA 4X enclosure can also be specified with 316 stainless steel. Page 1 of 8 9/9/2019 This information is subject to change without notice. Bradley_Keltech_HLSeries

HL Series - Commercial HeatersTankless Water Heating Solutions HL Pressure Drop Advantage Pressure Drop Product Options Building Management System (BMS) Integration The D1 option has 4-20mA input and allows Building Management Systems to set temperature and view heater outlet temperature via the BMS display. This allows the BMS to command the temperature setting of the unit and verify unit performance with actual process values. The D1 option requires BMS input to establish a temperature setting; local adjustment of set-point per standard interface on the heater control display is not...

HL Series - Commercial Heaters Tankless Water Heating Solutions (mm) HL Series - NEMA 1 Dimensions Select product options shown. Other options available. HL Inlet 3/4" Copper HL Outlet 3/4" Copper Side View Outlet Front View Back View (Mounting Holes) Inlet Ball or Gate Valves Pressure Relief Valve (if Local Code Requires) Y-Strainer, 100 Micron Recommended Threaded Unions Bottom View Suggested Installation Configuration Components provided by installer unless otherwise specified. Reference the product options sections or contact your local Bradley Representative for product options. Power...

HL Series - Commercial Heaters Tankless Water Heating Solutions (mm) HL Series (5-18 kW) - NEMA 4/4X Dimensions Select product options shown. Other options available. Front View Page 4 of 8 9/9/2019 This information is subject to change without notice. Bradley_Keltech_HLSeries

HL Series - Commercial Heaters Tankless Water Heating Solutions (mm) HL Series (25 kW) - NEMA 4/4X Dimensions Select product options shown. Other options available. Front View Page 5 of 8 9/9/2019 This information is subject to change without notice. Bradley_Keltech_HLSeries

HL Series - Commercial HeatersTankless Water Heating SolutionskW Calculator HL Series (kW): 5, 6, 10, 15, 18, 25 a Sizing for the proper flow rate is important. If the temperature rise requirements exceed a single HL model, consider using _ multiple HL-Series units or the C1N & C2N Series. Please contact your Keltech Representative for additional product information. 1. Calculate Delta-T (AT). Set point temp - coldest ground water temp = AT AT =_ 2. Select kW required by using chart or formula below. Peak demand in GPM x AT x .1465 = kW kW =_ 3. Confirm voltage and phase available on site....