1. The water heater(s) shall be fired with

 

gas at a rated input of

 

BTU/hr.

2.The water heater(s) shall be CSA tested and certified with a minimum thermal efficiency of 82 percent at full fire.

3.The water heater(s) shall be ASME inspected and HLW-stamped and National Board registered for 160 PSIG working pressure, complete with a Manufacturer's Data Report.

4.The water heater(s) shall have a floor loading of 70 lbs. /square foot or less.

B.Heat Exchanger

1.The heat exchanger shall be of a single-bank, horizontal-grid design with integral copper fin tubes, each end of which is rolled into an ASME boiler-quality steel tube sheet.

2.The heat exchanger shall be sealed to 160 PSIG rated bronze headers with silicone "O" rings, having a temperature rating over 500°F.

3.The low water volume heat exchanger shall be explosion-proof on the water side and shall carry a twenty-year warranty against thermal shock.

4.The headers shall be secured to the tube sheet by stud bolts with flange nuts to permit inspection and maintenance without removal of external piping connections.

5.The heat exchanger shall incorporate “V” baffles, between the tubes, to ensure complete contact of the external tube surfaces with the products of combustion.

6.The water heater(s) shall be capable of operating at inlet water temperatures as low as 105°F without condensation.

7.The water heater(s) shall be designed to accommodate field changes of either left or right hand plumbing and electrical while leaving the tube bundle in place.

C.Burners

1.The stainless steel alloy burners shall be of the raised port design with primary fixed air ports, capable of quiet extinction without flashback at the orifice at firing rates between 20% and 100%, and mounted in a slide out burner drawer for ease of inspection.

D.Pilot Control System

1.The water heater(s) shall be equipped with a 100 percent safety shutdown system. The standard pilot ignition shall be:

a.Models 133-1826 - An electronic intermittent ignition system with electronic flame supervision having a nominal 0.8 second flame response time.

b.Models 2100-4001 - An electronic ignition system with electronic flame supervision having a nominal 0.8 second flame response time, requiring a manual reset on flame failure.

2.The ignition shall be Spark Ignition type with full flame rectification to ensure consistent operation.

3.The igniter will be located away from the water inlet to protect the device from condensation during startup.

4.The ignition control module shall include two LEDs that indicate flame presence and/or system status.

E.Gas Train

1.The water heater(s) shall have dual gas valve seats per ANSI Z21.10.3/CSA 4.3.

2.Gas control trains shall have a redundant safety shut-off feature, main gas regulator, shut-off cock and plugged pressure tapping to meet the requirements of ANSI Z21.10.3/CSA 4.3.

F.Water Heater Control

1.The following safety controls shall be provided:

a.High limit control

b.Flow switch, mounted and wired

c.PSIG ASME pressure relief valve, piped by the installer to an approved drain

d.Temperature and pressure gauge

2.The water heater(s) shall be equipped with an energy-saving pump control relay (Economaster II), mounted and wired, which automatically shuts off the water heater pump at a set period after water heater shut-down (adjustable from three to ten minutes) to avoid standby losses associated with constant pump operation.

G.Firing Mode

Project Name / Date

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Raypak Finned Water-Tube Water Heaters dimensions

Finned Water-Tube Water Heaters specifications

Raypak Finned Water-Tube Water Heaters are renowned for their efficiency, durability, and advanced technology, making them a preferred choice for both residential and commercial applications. These heaters are designed to provide hot water consistently and reliably, catering to a wide range of temperature requirements.

One of the primary features of Raypak Finned Water-Tube Water Heaters is their unique finned-tube design. This design increases the surface area of the heat exchanger, allowing for maximum heat transfer and improved thermal efficiency. The finned tubes facilitate superior heat exchange with the water flowing through them, ensuring that hot water is readily available even during periods of high demand.

Raypak integrates advanced technologies in their water heaters to enhance performance and energy efficiency. The units are equipped with advanced control systems that allow for precise temperature regulation, reducing energy consumption and preventing overheating. Additionally, many models feature modulating burners, which adjust the firing rate based on the heating demand, ensuring optimal efficiency and reduced emissions.

Durability is another hallmark of Raypak's engineering. The water-tube construction is designed to withstand high pressures and temperatures, making these heaters suitable for high-demand applications. The units are constructed with high-quality materials that resist corrosion and wear, ensuring a long operational life with minimal maintenance.

Raypak also prioritizes safety in their heater designs. Features such as automatic shut-off valves, flame detection systems, and pressure relief valves are incorporated to ensure safe operation in various conditions. These safety mechanisms protect both the user and the equipment, adding peace of mind to the investment.

Energy efficiency ratings for Raypak Finned Water-Tube Water Heaters are typically high, qualifying for energy rebates and incentives in many areas. This efficiency translates to lower operating costs and environmental benefits, aligning with the global shift towards sustainable practices.

In summary, Raypak Finned Water-Tube Water Heaters stand out for their innovative design, advanced technology, and robust safety measures. They provide exceptional heating performance suited for myriad applications, making them a reliable choice for consumers looking to invest in high-quality water heating solutions. With ongoing advancements in technology, Raypak continues to lead the way in delivering efficient and effective water heating systems that meet modern demands.