User’s Information Manual

4SMART SYSTEM control module (continued)

Status Display Screens

By using the Previous/Next (￿, ￿) arrow keys on the SMART SYSTEM display panel, you can navigate through the eight (8) 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

 

 

BLR: OFF

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

 

 

SMART SYSTEM display panel.

 

 

 

 

 

 

 

 

 

Standby

The unit has not received a call for heat from a remote thermostat

 

 

nor has it received a call for heat from a DHW thermostat.

 

 

 

 

 

 

 

 

 

 

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

 

 

Set Point Met

receiving a call for heat from either a remote thermostat or a DHW

 

 

 

thermostat.

 

 

 

 

 

 

Prepurge

The unit has initiated a 10 second purge period on a call for heat.

 

 

 

 

 

 

Ignition

The unit has begun a 5 second spark period to ignite the main

 

 

burner.

 

 

 

 

 

 

 

 

 

Run***% Rate

The unit has fired and is running at the displayed percentage.

#1

 

 

 

 

 

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

 

 

Postpurge

additional 10 seconds to clear the combustion chamber and vent

 

 

 

system of residual flue products.

 

 

 

 

 

 

Service

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

 

 

unit to fire at 100% of rate for the purpose of combustion analysis.

 

 

 

 

 

 

 

 

 

 

When the outlet sensor has been selected as the control sensor

 

 

OUT: ***.*F(***)

(default), the control will display the outlet temperature as well as

 

 

 

the set point in parenthesis.

 

 

 

 

 

 

***.*F

If the outlet sensor has not been selected as the control sensor, only

 

 

the outlet temperature will be displayed.

 

 

 

 

 

 

 

 

 

Open

The control does not detect the outlet sensor.

 

 

 

 

 

 

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.

 

 

IN: ***.*F

If the inlet sensor has not been selected as the control sensor, only

 

 

the inlet temperature will be displayed.

 

 

 

 

 

 

 

 

 

 

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

 

 

***.*F (***)

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

#2

 

 

parenthesis.

 

 

 

 

 

Open

The control does not detect the inlet sensor.

 

 

 

 

 

 

Shorted

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

 

 

 

 

 

 

RISE: ***.*F

The difference between the inlet temperature and the outlet

 

 

temperature.

 

 

 

 

 

 

 

 

Press

the Next ￿ arrow key on the

SMART SYSTEM display to access Screen #3.

 

 

 

 

15

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Lochinvar 50, 210 Standby, Set Point Met, Prepurge, Ignition, Run***% Rate, Postpurge, Service, Out ***.*F, Open, Shorted

50, 210 specifications

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