Spec Sheet

Date: Bid Date:
Project #: Location:
Project Name: Engineer:
Contractor: Prepared By:
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NEOTHERM
Water Heater
with Pump
Model NTV 150-500 Outdoor
Specication
Contractor shall supply and install Qty.: _____ Laars Model No. NTV_________ modulating, water heater(s) with pump(s).
The heater shall be a Laars NeoTherm Model NTV_________, rated at the input and output shown on the schedule. The heater shall modulate
20-100% of full re. The unit(s) shall be design-certied to comply with the current edition of the Harmonized ANSI Z21.10.3 / CSA 4.3 Standard
for Gas Water Heaters, and shall include certication for outdoor installation. The unit(s) shall be designed and constructed in accordance with the
ASME Boiler & Pressure Vessel Code, Section IV requirements for 160 psi (1103 kPa) maximum working pressure, and shall bear the ASME "H"
Stamp (optional "HLW" Stamp), and be listed by the National Board. The unit(s) shall be constructed to comply with the efciency requirements of
the latest edition of ASHRAE Standard 90.1. The heater shall be listed with AHRI (Air Conditioning, Heating and Refrigeration Institiute). The heater
shall have minimum thermal efciencies of:
Size 150 199 285 399 500
Thermal Efciency
95% 97% 95% 96% 96%
The heater must meet ANSI Z21.10.3-2013, section 5.24 wind test and section 5.30 rain test.
The heater shall be equipped with an ASME certied pressure relief valve set at 125psi (861kPa). Optional pressure relief valves with settings of
30psi (207kPa), 50psi (345 kPa), 60psi (413 kPa), 75psi (517 kPa) or 150psi (1034 kPa) shall be available.
The heater shall meet the standards of US Public Law 111-380, Reduction of Lead in Drinking Water Act (CA AB-1953, VT S152, LA Act 362 and
MD HB 372) and NSF/ANSI-61 requirements.
The water tube heat exchanger shall be stainless steel, rated for 160 psi (1103 kPa) working pressure. The heat exchanger shall be a low water
volume design, welded construction, with no gaskets, o-rings or bolts in the header. Heat exchanger shall be accessible for visual inspection and
cleaning of all internal surfaces. The heater shall be fully condensing design with built-in condensate drain and trap. The heat exchanger shall have
a limited ve-year warranty.
Each heater shall be fully test red, (with water, gas, and venting connected), and all safety components tested, at the factory.
The heater shall be sealed combustion, and removal of jacket panels shall not affect the combustion seal. The heater jacket shall be a unitized shell
nished with acrylic thermo-set paint baked at not less than 325°F (163°C). The frame shall be constructed of galvanized steel for strength and
protection. Chamber shall include a sight glass for viewing ame. Heater shall be certied for zero clearance to combustible surfaces.
The heater shall be shipped with a pump that has conduit for eld installation. The pump shall be capable of serving the heater's heat exchanger
and 30 feet of piping that is the same size as the heater's water connections, with a normal number of pipe ttings.
Heater shall operate on 4-13" w.c. gas pressure, and shall need no component changes to operate at high altitude, up to 10,000 feet.
The heater shall use a premix burner with a stainless steel woven metal ber wrap, and a negative pressure gas valve to burn cleanly, with NOx
emissions not exceeding 10ppm. The heater shall meet the emissions requirements of SCAQMD 2012.
The heater shall be design-certied as a high efciency Category IV unit, and shall include a short section of vent pipe with adapter and bird screen
for outdoor installation
Unit shall be 120VAC, single phase, 8 Amps (including pump) for connection to a 15A breaker. The control circuit shall be 24VAC.
The heater control shall be an integrated electronic PID temperature and ignition control with large touchscreen and color display and shall control
the heater operation and ring rate.
When a display or control is eld-replaced, the device shall have the ability to read parameter setpoints from the original set-up, so the system does
not have to be re-programmed.
The control shall have the ability to control the heater pump with delay features.
The control shall have the ability to recognize a domestic water sensor or closure from a tank stat on the same terminals. The heater shall be
shipped with the domestic water heater sensor, as standard equipment.
The control shall easily allow the user to force the heater into minimum or maximum ring rate, for setup and diagnostic purposes, and shall have a
cleaning mode that allows the user to wipe the screen without activating any functions from the touchscreen.
The control shall have the ability to accept a 4-20mA or 0-10VDC input connection from an external control or building automation system, to
modulate the ame. The control shall have dry alarm contacts for ignition failure.
The control shall monitor ue gas temperature and shall stop the heater from ring if temperature is excessive.
Water Heater
with Pump
BNTV 150 - 500 Outdoor
Brute
Specication
Contractor shall supply and install Qty.: _____ Bradford White Model No. BNTV_________modulating water heater(s) with pump(s).
The heater shall be a Bradford White, Brute, Model BNTV_________rated at the input and output shown on the schedule. The heater shall modulate