Installation & Operation Manual

7 Operating information (continued)

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

 

 

 

 

 

When the inlet sensor has been selected as the control sensor, the

 

INLET: ***F (***)

control will display the inlet temperature as well as the set point in

 

 

parenthesis.

Screen #2

 

 

INLET: ***F

If the inlet sensor has not been selected as the control sensor or a system

Line 1

return sensor is connected, only the inlet temperature will be displayed.

 

 

 

 

 

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.

 

 

When the system supply sensor has been selected as the control sensor,

 

SYSSUP: ***F (***)

the control will display the system supply temperature as well as the set

 

 

point in parenthesis.

Screen #3

SYSSUP: ***F

If the system supply sensor has not been selected as the control sensor,

only the system supply temperature will be displayed.

 

Line 1

 

 

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.

 

 

 

 

 

When the system return sensor has been selected as the control sensor,

 

SYSRTN: ***F (***)

the control will display the system return temperature as well as the

 

 

set point in parenthesis.

 

 

 

Screen #3

SYSRTN: ***F

If the system return sensor has not been selected as the control sensor,

Line 2

only the system return temperature will be displayed.

 

 

 

 

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.

 

OUTDOOR: ***F

The control will display the outdoor air temperature as sensed by the

 

outdoor air sensor.

Screen #4

 

 

 

OUTDOOR: OPEN

The control does not detect the outdoor air sensor.

Line 1

 

OUTDOOR: SHORTED

The outdoor air sensor wires or the sensor itself has become shorted.

 

 

 

 

TANK: ***F

The control will display the tank temperature as sensed by the tank

 

sensor.

Screen #4

 

TANK: OPEN

The control does not detect the tank sensor.

Line 2

 

 

 

TANK: SHORTED

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

 

 

 

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Image 59
Lochinvar 402 - 2072 Inlet ***F, Inlet Open, Inlet Shorted, Syssup ***F, Syssup Open, Syssup Shorted, Sysrtn ***F

402 - 2072 specifications

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