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 a system-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

B.Manufacturer’s representative to verify proper and complete installation.

Project Name / Date

Division 23 52 33.13 - 4

Page 3 Page 5
Page 4
Image 4
Raypak 899B dimensions Source Quality Control, Part 3 Execution, Installation
Page 3 Page 5

899B specifications

The Raypak 899B is a highly efficient and reliable commercial boiler that has gained popularity in various heating applications. This unit is recognized for its robust construction, advanced technologies, and user-friendly features, making it a preferred choice among heating professionals.

One of the main features of the Raypak 899B is its impressive thermal efficiency, which can exceed 90%. This remarkable efficiency translates to lower operating costs and reduced energy consumption, making it an environmentally friendly option for both residential and commercial settings. The boiler is designed to utilize natural gas as fuel, ensuring a cleaner burn and minimal emissions, which is beneficial for users looking to adhere to strict environmental regulations.

The Raypak 899B is equipped with a unique copper fin-tube heat exchanger that enhances heat transfer and maximizes efficiency. This feature allows for quicker heating and improved performance, even in high-demand situations. The heat exchanger is also resistant to corrosion, which contributes to the boiler's longevity and requires less maintenance over time.

User-friendly control systems are another highlight of the Raypak 899B. The boiler incorporates advanced control technologies, allowing users to monitor and adjust settings easily from a central control panel. This includes precise temperature control and diagnostics, which helps ensure optimal operation and simplifies troubleshooting.

Additionally, the Raypak 899B offers flexibility when it comes to installation. With options for direct venting and a compact design, it can fit into various spaces, making it an ideal choice for both new constructions and retrofits. The unit is also designed for both indoor and outdoor installations, providing versatility depending on the project's requirements.

Safety features are paramount in the design of the Raypak 899B. It includes built-in safety controls that help prevent overheating and other potential hazards, ensuring peace of mind for users. Furthermore, the unit complies with various industry standards, highlighting its commitment to safety and quality.

In summary, the Raypak 899B boiler stands out due to its high efficiency, advanced heat exchanger technology, user-friendly controls, installation flexibility, and safety features. These characteristics make it a reliable choice for efficient heating solutions in both commercial and residential applications.
Top Page Image Contents