Installation & Operation Manual

11 Operating information

Status Display Screens (cont’d)

Operation of the cascade

The boiler designated as the Leader will have two additional display screens that can be viewed. These screens will provide information regarding the operation of the Cascade. Each screen will contain two viewable items. The following is a description of the individual items and what they can display:

Screen

 

Display shows:

Description

 

 

Cas: Off

The Leader control has been turned off by the Enter/Reset button on

 

 

the Smart System display.

 

 

 

 

 

 

 

 

 

Cas: Standby

The Leader boiler has not received a call for heat from a remote

 

 

thermostat.

 

 

 

 

 

 

 

 

 

Cas: 127.4F (130)

The Cascade is now active. The system supply temperature will be

 

 

displayed. The Cascade set point will be displayed in parenthesis.

 

 

 

 

 

 

 

 

 

Cas: Setpoint Met

The Cascade has met the water temperature set point, but is still

 

 

receiving a call for heat from a remote thermostat.

 

 

 

 

 

 

 

 

 

Cas: No Members

The Leader control could not detect any Member controls to

#9

 

participate in the Cascade.

 

 

 

 

 

 

 

 

Cas: S6 Not Present

The system supply sensor is not connected to the Leader boiler.

 

 

 

 

 

 

PMP: Off

The Leader control has not received a call for heat from a remote

 

 

thermostat and has not powered the system pump.

 

 

 

 

 

 

 

 

 

PMP: On

The Leader control has received a call for heat from a remote

 

 

thermostat and has powered the system pump.

 

 

 

 

 

 

 

 

 

PMP: Delay

The system call for heat has been satisfied and the system pump is

 

 

running for a fixed time to remove any residual heat.

 

 

 

 

 

 

 

 

Press the Next ￿ arrow key on the SMART SYSTEM display to access Screen #10.

 

 

 

 

#10

 

The first percentage shows the firing rate that is being sent to the last

Cas Pow: ***% ***%

boiler called on. The second percentage shows the total power

 

available to the Cascade.

 

 

 

Shows the number of boilers connected to the Cascade. The Leader is

 

designated as 0. Members will be designated 1 - 7. If a “-“ is used in

Present: 01234567

place of a number, that boiler is either not connected, or in a lockout

mode and not available for the Cascade. If a “d” is used in place of a

 

Example:

number, that boiler is handling a DHW demand and is not available

for the Cascade. If the number is flashing, then that boiler is providing

Present: 23----d1

heat to the Cascade. As the lead boiler is changed from day to day, that

 

 

boiler’s address will be shown first in the string of numbers. In the

 

example, boilers 0 - 3 are present, boiler 2 is the lead boiler, and boiler

 

0 is heating an indirect DHW tank.

Press the Next ￿ arrow key on the SMART SYSTEM display to roll back to Screen #1. At any point if you wish to access an earlier screen, press the Previous ￿ arrow key on the SMART SYSTEM display.

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Lochinvar 399 operation manual Operation of the cascade

399 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.