1.The water heater(s) shall be configured with a cold water start automatic proportional bypass system that ensures the water heater will experience inlet temperatures in excess of 105ºF in less than 7 minutes to avoid damaging condensation. The unit will automatically shut down if the inlet temperature is not achieved within the 7 minute time frame.

2.The cold water start system shall be configured with a modulating three-way valve that is controlled by a system-matched PID controller. The PID controller temperature sensor shall be located in the inlet header of the water heater.

3.The control shall have a temperature setting dial located on the face of the board. The temperature range of the dial shall be 105ºF to 120ºF. The PID Logic shall be capable of limiting system overshoot to a maximum of 10ºF on initial start-up or call-for-heat.

4.The cold water start system shall be completely wired and mounted at the factory.

5.The control shall have the following diagnostic LED’s:

a.Call for heat

b.Start-up mode

c.Inlet temperature error

d.Sensor out of range

6.The controller shall have the capability to add optional alarm contacts.

P.Cold Water Run System

1.The water heater(s) shall be configured with a cold water run automatic proportional bypass system that ensures the water heater will experience inlet temperatures in excess of 105ºF in less than 7 minutes to avoid damaging condensation. The unit will automatically shut down if the inlet temperature is not achieved within the 7 minute time frame.

2.The cold water run system shall be configured with a variable speed pump that is controlled by

asystem-matched PID control that injects the correct amount of cold water directly into the - water heater loop to maintain a minimum inlet temperature. The PID controller temperature sensor shall be located in the inlet header of the water heater.

3.The control shall have a temperature setting dial located on the face of the board. The temperature range of the dial shall be 105ºF to 120ºF. The PID Logic shall be capable of limiting system overshoot to a maximum of 10ºF on initial start-up or call-for-heat.

4.The cold water start system shall be completely wired and mounted at the factory.

5.The control shall have the following diagnostic LED’s:

a.Call for heat

b.Start-up mode

c.Inlet temperature error

d.Sensor out of range

6.The controller shall have the capability to add optional alarm contacts

2.3SOURCE QUALITY CONTROL

A.The water heater(s) shall be completely assembled, wired, and fire-tested prior to shipment from the factory.

B.The water heater(s) shall be furnished with the sales order, ASME Manufacturer’s Data Report, inspection sheet, wiring diagram, rating plate and Installation and Operating Manual.

PART 3 - EXECUTION

3.1INSTALLATION

A. Must comply with:

1.Local, state, provincial, and national codes, laws, regulations and ordinances

2.National Fuel Gas Code, ANSI Z223.1/NFPA 54 – latest edition

3.National Electrical Code, ANSI/NFPA 70 – latest edition

4.Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1, when required

5.Canada only: CAN/CSA B149 Installation Code and CSA C22.1 CEC Part I

6.Manufacturer’s installation instructions, including required service clearances and venting guidelines

Project Name / Date

Division 23 52 33.13 - 4

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Raypak 989B, 2339B dimensions Source Quality Control, Part 3 Execution, Installation

2339B, 989B specifications

Raypak 2339B and 989B are advanced heating solutions designed to cater to the needs of residential and commercial applications. These models are especially renowned for their efficiency, reliability, and user-friendly designs. With a focus on delivering superior performance, Raypak has incorporated a host of features and technologies that make these units stand out in the market.

One of the primary features of the Raypak 2339B and 989B is their innovative heat exchanger technology. These units utilize a highly efficient copper fin tube heat exchanger, which not only enhances heat transfer but also improves durability. This design allows for faster heating times, ensuring that users enjoy immediate comfort without long wait periods.

Both models incorporate advanced combustion systems that optimize fuel usage, significantly reducing energy costs without compromising on performance. The electronic ignition system used in these units ensures reliable operation and minimizes excess gas consumption, making them eco-friendly choices for environmentally conscious consumers.

The Raypak 2339B and 989B are available with a variety of control options, including digital displays that allow for precise temperature setting and monitoring. These controls simplify the process of managing heating cycles, ensuring that users can maintain the desired conditions effortlessly. Additionally, the units can be easily integrated with smart home technology, providing further convenience and control.

Durability is another key characteristic of the Raypak 2339B and 989B units. Constructed with robust materials, they are designed to withstand various environmental conditions. The corrosion-resistant cabinet ensures that the units maintain their integrity even when exposed to harsh weather, making them a reliable choice for outdoor installations.

Safety features are paramount in the design of the Raypak 2339B and 989B. They come equipped with built-in safety controls, including high-limit switches and pressure relief valves, ensuring safe operation. Furthermore, their low NOx emissions technology adheres to stringent environmental regulations, reinforcing Raypak's commitment to sustainability.

In summary, the Raypak 2339B and 989B are exemplary models that combine efficiency, advanced technology, and durability. They provide powerful heating solutions for a variety of settings, making them a preferred choice for those looking for reliability and performance in their heating systems. Whether for a home or commercial space, these units deliver the comfort and efficiency customers demand.