Installation & Operation Manual

7 Operating information

Status Display Screens (cont’d)

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

 

 

The system return sensor acts as the control sensor. The control

 

SYSRTN: ***F (***)

will display the system return temperature as well as the set point in

Screen #3

 

parenthesis.

Line 2

SYSRTN: OPEN

The control does not detect the system return sensor.

 

 

 

 

SYSRTN: SHORTED

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

 

 

 

Press the Next arrow key on the SMART SYSTEM display to access Screen #4.

N/A

Press the Next arrow key on the SMART SYSTEM display to access Screen #5.

Screen #5

Line 2

STG DEMAND: ****

The control displays the number of stages firing, based upon demand.

Press the Next arrow key on the SMART SYSTEM display to access Screen #6.

Screen #6

FAN SPEED: ***

The control will display either OFF, LOW, or HIGH depending upon

 

Line 1

fan speed requirements of number of stages firing.

 

 

 

 

 

 

 

Screen #6

0 – 10V RATE: **.*V

The control will display 0 to 10 volts based upon fan speed and unit

 

Line 2

capacity.

 

 

 

 

 

 

 

Press the Next arrow key on the SMART SYSTEM display to access Screen #7.

Screen #7

Line 1

PH CFH: ***

The control will display either ON or OFF based upon a demand (call for heat) for heat.

Press the Next arrow key on the SMART SYSTEM display to access Screen #8.

Screen #8

Line 1

SYS PUMP: ***

The control will display either ON or OFF based upon system pump requirements upon demand.

Press the Next arrow key on the SMART SYSTEM display to access Screen #9.

Screen #9

Line 1

UNIT PUMP: ***

The control will display either ON or OFF based upon unit pump

requirements upon demand.

 

 

 

UNIT PUMP: DELAY

The control will display delay in unit pump operation after the heat

requirements have been satisfied.

 

 

 

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

Screen #10

FLM SIG – A: **.* µA

The control displays the igniter flame signal of igniter A in microamps.

 

Line 1

 

 

 

 

Screen #10

FLM SIG – B: **.* µA

The control displays the igniter flame signal of igniter B in microamps.

 

Line 2

 

 

 

 

Press the Next arrow key on the SMART SYSTEM display to access Screen #11.

Screen #11

IGN * AMPS: *.* A

The control displays the current of either igniter A or B.

Line 1

 

 

Screen #11

MIX VAL POS: ** %

The control displays the mixing valve percentage open to the system.

Line 2

 

 

 

 

 

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Lochinvar 502, 2072 Sysrtn Open, Sysrtn Shorted, STG Demand, FAN Speed, SYS Pump, Unit Pump Delay, Mix Val Pos ** %

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.