Installation and Service Manual

To Turn Off Gas To Appliance

1.Open the front access panel to access control panel.

2.Turn power switch to “OFF” position.

3.Turn the manual gas cock clockwise to the “OFF” position.

WARNING: Should overheating occur or

the gas fail to shut off, turn off the manual gas control valve to the unit.

WARNING: Return water temperatures must not be less than 140°F. If lower return water temperatures are required, follow the instructions for Low Temperature Return Water Systems, page 36.

The temperature control uses a Liquid Crystal Display (LCD) for interactive prompting during programming and display of sensed and assigned values. Programming is accomplished through the use of the three programming buttons.

Quick Programming Overview

Power Up

After turning the power switch to the “ON” position, the LCD screen will come on to the “View” menu. The screen will show the boiler outlet temperature setting (see FIG. 47, page 45).

FIG. 45 Combination Gas Valve

PROGRAMMING TEMPERATURE

CONTROL

Note: The temperature controller is pre-programmed at the factory with test settings. Stages per model may vary. These pre-programmed values are as follows:

Standard Btu/hr Models

399,999 - 500,000

2-Stage (Capable)

650,000 - 990,000

3-Stage (Capable)

1,260,000 - 2,070,000

4-Stage (Capable)

 

 

 

 

 

 

Stage

Set Point

Differential

1

125°F (52°C)

8°F (5°C)

2

120°F (49°C)

8°F (5°C)

3

115°F (46°C)

8°F (5°C)

4

110°F (43°C)

8°F (5°C)

Re-program the set points and differentials to meet your system requirements.

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Lochinvar CF-CH(E)-i&s-08, 399 Quick Programming Overview, To Turn Off Gas To Appliance, Power Up, Standard Btu/hr Models

399, CF-CH(E)-i&s-08, 999 - 750 specifications

Lochinvar 999 - 750, CF-CH(E)-i&s-08,399 is a cutting-edge boiler designed for commercial heating applications. With its robust construction and high efficiency, this model stands out in the crowded market of heating solutions.

One of the main features of the Lochinvar 999 - 750 is its exceptional thermal efficiency rating. The unit incorporates advanced condensing technology that allows it to recover heat from flue gases, which helps in achieving efficiency levels of up to 99%. This efficiency not only reduces energy consumption but also lowers operational costs, making it an excellent investment for businesses looking to minimize their carbon footprint.

The boiler is designed to provide a powerful output of 750 kW, ensuring it meets the heating demands of larger buildings or commercial spaces. Its capacity makes it suitable for a range of applications including schools, hospitals, and industrial facilities. Moreover, the unit features a built-in cascading system that enables multiple boilers to be connected, enhancing system reliability and flexibility.

In terms of technology, the Lochinvar 999 - 750 is equipped with a user-friendly touchscreen interface. This innovative control system allows operators to monitor and adjust settings with ease, providing real-time performance data and alerts for maintenance needs. The intelligent controls optimize operation to match the heating load, further enhancing energy efficiency.

Safety is a top priority with this model. It is built with multiple safety features such as automatic shut-off valves, pressure relief valves, and flame monitoring systems, ensuring safe operation under various conditions. The unit also adheres to stringent industry standards and regulations, making it a reliable choice for commercial applications.

Furthermore, the Lochinvar 999 - 750 is designed with serviceability in mind. Its compact footprint and accessible components simplify maintenance, reducing downtime and associated costs. The unit also supports a variety of fuel sources, including natural gas, propane, and biodiesel, providing flexibility to meet different facility requirements.

In summary, the Lochinvar 999 - 750, CF-CH(E)-i&s-08,399 represents a blend of efficiency, reliability, and safety in commercial heating. Its advanced technologies and thoughtful design make it a powerful solution for various heating needs, making it an ideal choice for businesses aiming for excellence in energy management and operational efficiency.