Status Display Screens - Lochinvar EcoShield SHW45-325CE User & Control Manual

2.4

STATUS DISPLAY SCREENS

Status Display Screens
By using the Previous/Next (◄, ►) arrow keys on the user interface control panel, you can navigate through the six (6) 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:
WHR: OFF
STANDBY
PREPURGE
IGNITION
RUN***% RATE
1
POSTPURGE
SERVICE
OUT:***.*C
OPEN
SHORTED
Press the Next ► arrow key on the user control interface panel to access Screen 2
IN: ***.*C
OPEN
2
SHORTED
RISE: ***.*C
Press the Next ► arrow key on the user control interface panel to access Screen 3.
FLUE: ***.*C
OPEN
SHORTED
3
TANK: ***.*C (***)
OPEN
SHORTED
Press the Next ► arrow key on the user control interface panel to access Screen 4.
FAN SPD: ****RPM
4
FLAME SIG: **.*UA
Press the Next ► arrow key on the user control interface panel to access Screen 5.
WHR CFH: OFF
ON
WHR PUMP: OFF
5
ON
DELAY
Press the Next ► arrow key on the user control interface panel to access Screen 6.
NOT USED: N/A
6
0-10V IN: **.VDC
Press the Next ► arrow key on the user control interface panel to access Screen 7.
PMP: Off
7
PMP: On
PMP: Delay
Press the Next ► arrow key on the User control interface panel to roll back to Screen 1. At any point if you wish to
access an earlier screen, press the Previous ◄ arrow key on the User control interface panel.
Description
The unit has been turned OFF by the Enter/Reset button on the user
interface control panel.
The unit has not received a call for heat from its from a tank sensor.
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 flue system
of residual combustion 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 heat exchanger outlet temperature is displayed.
The control does not detect the outlet sensor.
The outlet sensor wires or the sensor itself has become shorted.
The heat exchanger inlet temperature is displayed.
The control does not detect the inlet sensor
The inlet sensor wires or the sensor itself has become shorted.
The difference between the inlet temperature and the outlet
temperature.
The control will display the flue temperature.
The control does not detect the flue sensor.
The flue sensor wires or the sensor itself has become grounded.
The control will display the stored water temperature; the set point
appears in brackets.
The control does not detect the tank sensor.
The tank sensor wires or the sensor itself has become shorted.
The control will display the actual fan motor RPM.
The control will display the flame signal in dc micro amps.
The control has not received a call for heat from the tank sensor.
The control has received a call for heat from the tank sensor.
The control has not received a DHW call for heat and has not powered
the primary pump.
The control has received a DHW call for heat and has powered the
primary pump.
The primary call for heat has been satisfied and the DHW pump is
running for a fixed time to remove any residual heat.
Not used.
The control will display a 0-10Vdc signal received from a Building
Management System (BMS) connected to the unit.
The Master control has not received a call for heat from the tank sensor
and has not powered the primary pump.
The Master control has received a call for heat from the tank sensor and
has powered the system pump.
The tank call for heat has been satisfied and the tank pump is running
for a fixed time to remove any residual heat.
8