Installation & Operation Manual

7 Operating information (continued)

Status display screens

Status Display Screens

By using the Previous/Next (, ) arrow keys on the SMART SYSTEM display panel, you can navigate through the 11 display screens. Each screen will contain two (2) viewable items. The following is a description of the individual items and what they can display:

Screen #

Display Shows

Description

 

HTR: OFF

The unit has been turned OFF by the Enter/Reset button on the

 

SMART SYSTEM display panel.

 

 

 

 

 

 

 

The unit’s water temperature set point has been met and there is

 

HTR: STAND-BY

no call for heat demand being received from either the external

 

 

thermostat or the BMS.

 

 

 

 

HTR: SETPOINT MET

The unit’s water temperature set point has been met, but is still

 

receiving a call for heat from either a remote thermostat or a BMS.

 

 

 

 

 

 

HTR: PRE-PURGE

The unit has initiated the combustion air purge cycle upon a call for

 

heat.

Screen #1

 

 

 

 

The unit has begun the igniter heatup cycle prior to the trial for

Line 1

 

HTR: IGNITER * ON

ignition. Display will show IGNITER A or IGNITER B depending on

 

 

 

which stage has priority.

 

 

 

 

HTR: RUN STG ****

The unit has fired and is running at the displayed number of stages

 

(1,2,3,4).

 

 

 

 

 

 

HTR: POST-PURGE

The call for heat has been satisfied and the unit runs the fan to clear

 

the combustion chamber and vent system of residual flue products.

 

 

 

 

 

 

HTR: SERVICE MODE

The unit has been placed in a temporary mode that will allow the unit

 

to fire for the purpose of combustion analysis.

 

 

 

 

 

Screen #1

OUT: ***F

The outlet temperature is displayed by the control.

Line 2

 

 

 

OUT: OPEN

The control does not detect the outlet sensor.

OUT: SHORTED

The outlet sensor wires or the sensor itself has become shorted.

Press the Next arrow key on the SMART SYSTEM display to access Screen #2.

 

Screen #2

INLET: ***F

The inlet temperature is displayed by the control.

 

 

Line 1

 

 

 

 

 

INLET: OPEN

The control does not detect the inlet sensor.

 

 

 

 

 

 

 

 

 

 

 

INLET: SHORTED

The inlet sensor wires or the sensor itself has become shorted.

 

 

 

 

 

 

 

Screen #2

RISE: ***F

The difference between the inlet temperature and the outlet temperature

 

 

Line 2

is displayed.

 

 

 

 

 

 

 

 

 

Press the Next arrow key on the SMART SYSTEM display to access Screen #3.

Screen #3

Line 1

SYSSUP: ***F

The system supply temperature is displayed by the control.

 

 

SYSSUP: OPEN

The control does not detect the system supply sensor.

 

 

SYSSUP: SHORTED

The system supply sensor wires or the sensor itself has become shorted.

 

 

55

Page 55
Image 55
Lochinvar 2072, 502 operation manual Status display screens

2072, 502 specifications

Lochinvar 2072,502 is an innovative and robust water-heating solution tailored for residential and commercial applications. This model represents a significant advancement in energy efficiency and performance, catering to the dynamic heating requirements of modern buildings.

One of the standout features of Lochinvar 2072,502 is its advanced thermal efficiency. With an impressive AFUE (Annual Fuel Utilization Efficiency) rating, the unit delivers exceptional heat output while minimizing energy consumption. This not only reduces utility bills for homeowners and businesses but also supports sustainability efforts by decreasing carbon footprints.

The Lochinvar 2072,502 incorporates cutting-edge technologies that set it apart in the market. It is equipped with advanced control systems that allow users to precisely manage heating outputs, ensuring optimal comfort while conserving energy. The user-friendly digital display provides real-time data, allowing for efficient monitoring and control.

Another significant characteristic of the Lochinvar 2072,502 is its robust stainless-steel construction. This feature enhances the unit's durability and longevity, ensuring reliable performance even in challenging conditions. The high-quality materials also contribute to maintaining consistent water temperatures, which is essential for both residential and commercial heating needs.

The Lochinvar 2072,502 operates silently, making it ideal for installations in areas where noise is a concern. Its compact design allows for flexible installation options, fitting seamlessly into various spaces, whether it’s a utility room, basement, or outdoor area.

Furthermore, the unit supports multiple venting options, accommodating different building architectures and layouts. This versatility makes it an ideal choice for new builds and retrofitting existing systems.

Maintenance is streamlined with the Lochinvar 2072,502, as it features a self-diagnostics system that simplifies troubleshooting. Regular service check-ups are made easier with accessible components, allowing technicians to perform maintenance tasks efficiently.

In summary, the Lochinvar 2072,502 stands out for its high efficiency, advanced technology, durability, and flexible installation options. It is an ideal choice for those seeking a reliable and technologically advanced water-heating solution that meets the challenges of contemporary heating demands while promoting energy savings and environmental responsibility.