Spec Sheet

Date: Bid Date:
Project #: Location:
Project Name: Engineer:
Contractor: Prepared By:
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NEOTHERM
Water Heater
Model NTV 150 - 850 Outdoor
Specication
Contractor shall supply and install Qty.: _____ Laars Model No. NTV_________ modulating water heater(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. 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 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 water heater shall have
minimum thermal efciencies of:
Size 150 199 285 399 500 600 750 850
Thermal Efciency
95% 97% 95% 96% 96% 97% 94% 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 surfaces of the ue side of the heat exchanger. 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.
All water, gas, vent and air connections shall be on the top of the heater, and the top jacket panels shall be split, such that they are removable
without disconnecting the water, gas, vent or air pipes.
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 designed for vertical or horizontal Category IV venting, up to 100 equivalent feet, with 3" diameter PVC, CPVC or stainless steel
vent material. Air may be taken from the room, or ducted directly to the heater, using up to 100 equivalent feet of 3" diameter ABS, PVC, CPVC or
galvanized pipe. The heater shall be shipped with PVC sidewall vent and air terminals, for use with horizontal systems. The rst section of CPVC
vent pipe shall be shipped with each heater.
Unit shall be 120VAC, single phase, 2 Amps 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. The heater display shall be visible without the removal of any jacket panels or control panels.
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 be able to cascade and lead-lag with other
NeoTherm controllers, without additional system controllers.
The control shall have the ability to control the domestic water pump, with a time delay and exercise feature.
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 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.
Allowable control adjustments shall include: heater temperature setpoint; domestic water temperature setpoint; automatic high limit: °F or °C
display; DHW setpoint for time of day input; DHW PID gain parameters; manual ring rate control; pump delay time; pump exercise interval;
automatic remote signal detection; anti-shortcycle feature enable/disable.
The control shall have installer-level password, and verication feature to ensure that safety-related parameters are not altered by mistake.
BNTV 150 - 850 Outdoor
Brute
Specication
Contractor shall supply and install Qty.: _____ Bradford White Model No. BNTV_________modulating water heater(s).
The heater shall be a Bradford White, Brute, Model BNTV_________rated at_________BTU/hr input and________BTU/hr output. The heater shall modulate
Brute controllers, without additional system controllers.