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4
SMART SYSTEM control module
Figure 4-2 Status Display Screen
(BOILER
STATUS)
C
(OPERATIONAL
INFORMATION)
D
(LEFT SELECT
KEY)
NOTE: All screens show burner status, heat demands, lockout/blocking, pump status, and soft keys.
Section
A
(Boiler Status
Bar)
B
(Call for Heat
Indicators)
A
(NAVIGATION DIAL)
Status Display Screens
Display
STANDBY
START
PREPURGE
IGNITION
%
POSTPURGE
SHUTDOWN
SETPOINT MET
BLOCKED
E
Description
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 begun a burn cycle and is checking all safety circuits.
The unit has initiated a prepurge period on a call for heat.
The unit has begun a 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 postpurge period to clear the combustion chamber and
vent system of residual flue products.
The unit has been placed in the OFF position.
The controlled temperature has exceeded its set point and its offset.
The unit has detected a condition that has temporarily interrupted
the current call for heat.
Room Thermostat 1 has a call for heat.
Room Thermostat 2 has a call for heat.
Room Thermostat 3 has a call for heat.
The tank thermostat or sensor has a call for heat.
Indicates which room thermostat demand has priority.
The unit is being controlled by a 0 - 10V BMS signal.
The member unit is supplying heat while in Cascade Mode.
User's Information Manual
B
(CALL FOR
HEAT)
F
(RIGHT SELECT KEY)
13
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