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11
Operating information
Status Display Screens
Section
Display
Description
A
(Boiler Status
Bar)
STANDBY
Th
e unit has not received a call for heat from a remote thermostat nor
has it received a call for heat from a DHW thermostat.
START
Th
e unit has begun a burn cycle and is checking all safety circuits.
PREPURGE
Th
e unit has initiated a prepurge period on a call for heat.
IGNITION
Th
e unit has begun a spark period to ignite the main burner.
Th
e unit has fi red and is running at the displayed percentage.
POSTPURGE
Th
e call for heat has been satisfi ed and the unit runs the fan for an
additional postpurge period to clear the combustion chamber and
vent system of residual fl ue products.
SHUTDOWN
Th
e unit has been placed in the OFF position.
Th
e controlled temperature has exceeded its set point and its off set.
BLOCKED
Th
e unit has detected a condition that has temporarily interrupted
the current call for heat.
B
(Call for Heat
Indicators)
Room Th
ermostat 1 has a call for heat.
Room Th
ermostat 2 has a call for heat.
Room Th
ermostat 3 has a call for heat.
Th
e tank thermostat or sensor has a call for heat.
Indicates which room thermostat demand shows priority.
Th
e unit is being controlled by a 0 - 10V BMS signal.
Th
e member unit is supplying heat while in Cascade Mode.
A
C
D
B
F
E
(BOILER
STATUS)
(OPERATIONAL
INFORMATION)
(LEFT SELECT
KEY)
(RIGHT SELECT KEY)
(NAVIGATION DIAL)
(CALL FOR
HEAT)
Figure 11-2 Status Display Screen
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Installation & Operation Manual
