Sate Water Heater Specifications

COMMERCIAL-GRADE
RESIDENTIAL TANKLESS WATER HEATERS
Page 6 of 6
SRGSS00416
©June 2017 State Water Heaters. All Rights Reserved
statewaterheaters.com | 800-365-0024 Toll-Free USA | State Water Heaters | 500 Tennessee Waltz Parkway | Ashland City, TN 37015
COMMERCIAL-GRADE
RESIDENTIAL TANKLESS WATER HEATERS
SUGGESTED SPECIFICATIONS FOR THE GTS-540P
The fully modulating, on-demand, condensing gas fired tankless water heater(s) with integrated recirculation pump shall be State
Tankless Water Heater model GTS-540P, having a maximum input rating of 199,000 Btu/h and available in NG or LP. The heater shall
have ¾ in. male NPT water and gas connections. The inlet gas supply pressures shall be 4.0 in. WC (min.) up to 10.5 in. WC (max.)
for NG and 8.0 in. WC (min.) up to 14 in. WC (max.) for LP. The indoor heater(s) shall incorporate an integrated temperature controller
that will provide pump control, diagnostic information, fault history, and heater set temperature. The outdoor heater shall be factory
supplied with a temperature remote, 100276687, that can be installed up to 400 ft. from the heater using 20 gauge (minimum) control
wire. The temperature remote shall provide pump control, diagnostic information, fault history, and heater set temperature. The heater
shall operate using 120 V / 60 Hz power source. The indoor heater will incorporate a factory installed power cord.
The indoor heater shall be vented with 3” or 4” diameter schedule 40 PVC (solid core), CPVC, ABS, polypropylene or category IV vent
pipe with a length not to exceed 70 ft. (equivalent) for 3” vent or 100 ft. (equivalent) for 4” vent, terminating horizontally or vertically.
The intake pipe may use material such as PVC, (solid core) CPVC, ABS, aluminum, or Category IV pipe and cannot exceed 70 ft.
(equivalent) for 3” vent or 100 ft. (equivalent) for 4” vent. The indoor heater shall be able to be common vented with schedule 40 PVC
(solid core) pipe or approved polypropylene vent with a length not to exceed 100 ft. (equivalent) using up to 10 in. pipe. Proper sizing is
provided in the heater’s installation manual. The outdoor heater(s) shall be constructed with an integral exhaust vent on the front of
the heater.
The water heater shall use a commercial grade copper alloy, fin tube primary heat exchanger with quick release brass or bronze
waterways. The secondary heat exchanger shall be constructed from stainless steel 316L. The heater shall be controlled by an onboard
solid-state printed circuit board which uses the following factory installed components: thermistors to monitor inlet & outlet water
temperature and exhaust temperature; a flow sensor to measure flow rate; a flame sensor to monitor combustion; an air-fuel ratio rod
to measure and adjust operation in order to maintain optimal combustion efficiency. The heater also consists of inline fusing and surge
absorbers for electrical surge protection, an electronic spark igniter, aluminized stainless steel burners, hi-limit temperature switches
to monitor water and exhaust temperatures, modulating gas valve, an overheat cutoff fuse and ceramic heating blocks to protect the
heat exchanger and water piping from freezing. The indoor heater shall incorporate auto-fire system and a pump circulation operation
for additional freeze protection. The indoor model shall include an exhaust temperature monitoring system using an exhaust thermistor
and automatic hi-limit switch to maintain safe exhaust temperatures for sch. 40 PVC. The heater shall have a built-in condensate trap
for the secondary heat exchanger.
The heater can manifold into an Easy-Link to provide additional capacity. The Easy-Link controls shall be built onto the onboard solid-
state printed circuit board and does not require external controls. The linking control wire shall be supplied with the heater.
The heater shall be design certified by CSA according to ANSI Z21.10.3 • CSA 4.3, approved for sale in the United States,
ENERGY STAR
®
qualified, has a minimum uniform energy factor of 0.93, meets the energy efficiency requirements of the U. S.
Department of Energy and ASHRAE 90.1 and complies with SCAQMD Rule 1146.2 and other air quality districts with similar
requirements for low NOx emissions of 14 ng/J or 20 ppm.
FOR MORE INFORMATION ON CALL 1-800-365-0024. STATE WATER HEATERS RESERVES THE RIGHT TO MAKE PRODUCT CHANGES OR IMPROVEMENTS WITHOUT PRIOR NOTICE.