Spec Sheet

Date: Bid Date:
Project #: Location:
Project Name: Engineer:
Contractor: Prepared By:
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NEOTHERM
Water Heater
Model NTV 150 - 850 Indoor
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 W
ater Heaters. The unit(s) shall be designed and constructed in accordance with the ASME Boiler & Pressure V
essel Code, Section IV
requirements for 160 psi (1
103 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 e󰀩ciency requir
ements of the latest edition of ASHRAE Standard 90.1.
The water heater shall have
minimum thermal e󰀩ciencies of 94%,
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 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 have NSF/ANSI-372 Low Lead Content Certication. The heater shall be fully condensing design
with built-in condensate drain and trap. The heat exchanger shall have a limited eight-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 a󰀨ect 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 with approved PVC, CPVC, stainless steel, or polypropylene:
• Models 150-199: Up to 100 equivalent feet of 3" diameter pipe
• Model 285: Up to 20 equivalent feet of 2” diameter pipe, or 100 equivalent feet of 4” diameter pipe
• Models 399-500: Up to 100 equivalent feet of 4” diameter pipe
• Models 600-850: Up to 40 equivalent feet of 4” diameter pipe, or up to 100 equivalent feet of 6” diameter pipe
Air may be taken from the room, or ducted directly to the heater using ABS, PVC, CPVC or galvanized pipe:
• Models 150-199: Up to 100 equivalent feet of 3" diameter pipe
• Model 285: Up to 20 equivalent feet of 2” diameter pipe, or 100 equivalent feet of 4” diameter pipe
• Models 399-500: Up to 100 equivalent feet of 4” diameter pipe
• Models 600-850: Up to 40 equivalent feet of 4” diameter pipe, or up to 100 equivalent feet of 6” diameter 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. The control circuit shall be 24VAC.
The heater control shall be an integrated electronic PID temperature and ignition control with large color touchscreen 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.
BNTV 150 - 850 Indoor
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.