Status Display Screens - Lochinvar Shield SNR200-100 Installation And Service Manual

11
Operating information

Status display screens

By using the Previous/Next ( ,
five (5) 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
HTR: OFF
Standby
Prepurge
Ignition
RUN***% Rate
#1
Postpurge
Service
TANK:***.*F
Open
Shorted
Press the Next
HEX IN: ***.*F
Open
Shorted
#2
HEX OUT: ***.*F
Open
Shorted
Press the Next
Status Display Screens
) arrow keys on the electronic control module display panel, you can navigate through the
Display shows:
The unit has been turned OFF by the Enter/Reset button on the
electronic control module display panel.
The unit has not received a call for heat.
The unit has initiated a 10 second purge period on a call for heat.
The unit has begun a 5 second spark period to ignite the main burner.
The unit has fired and is running at the displayed percentage.
The call for heat has been satisfied and the unit runs the fan for an
additional 10 seconds to clear the combustion chamber and vent system
of residual flue products.
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.
The tank temperature is displayed.
The control does not detect the tank sensor.
The tank sensor wires or the sensor itself has become shorted.
arrow key on the electronic control module display to access Screen #2.
The temperature at the inlet to the heat exchanger is displayed.
The control does not detect the heat exchanger inlet sensor.
The heat exchanger inlet sensor wires or the sensor itself has become
shorted.
The temperature at the outlet of the heat exchanger is displayed.
The control does not detect the heat exchanger outlet sensor.
The heat exchanger outlet sensor wires or the sensor itself has become
shorted.
arrow key on the electronic control module display to access Screen #3.
TM
(continued)
Description
Installation & Service Manual
51