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Eclipse Veri-Flame Instruction Manual 818-2/02
INTRODUCTION
Function Summary
STANDARD FEATURES
4
This section describes the features of the Veri-Flame. It is broken into three categories:
Standard features, Optional features and the LED Indicator Lights on the front cover.
Refer to Figure 5.5 for sequence diagrams.
The following function features are standard on the Veri-Flame models as noted:
This input is considered the normal operation control or run input to the Veri-
Flame system. Interlocks are generally pressure or temperature switches which,
when activated, start the burner. Limit switches are generally pressure, tempera-
ture and other switches which, when activated, stop the burner. The interlocks and
limit switches are wired in series. A break in this circuit will shut the burner down,
but will not produce an alarm.
Interlocks and Limit
Switch Input (Terminal 7)
Combustion Air
Switch Input (Terminal 6)
For purge and modulation models: This input is for monitoring the
combustion air switch separately from other interlocks and limits. The Veri-Flame
checks the air flow switch input is open before start-up, closed during operation,
and open again at burner shutdown, thus preventing operation with an air switch
that is defective, maladjusted or jumped. This input has about a 2 second delay to
filter out and ignore a momentary interruption.
The input will be proven open before start-up and after shutdown. If the input is
improperly powered before the fan output is energized, the system error light will
blink. The input must de-energize within 30 seconds or the Veri-Flame will lockout.
After the fan output has energized, the air switch input must be made within 10
seconds. If not proven, then the system will lockout, the alarm output and the air
failure light will come on. However, if the unit has the optional air switch input
hold feature, the sequence is held indefinitely without causing a lockout. When the
air switch input is made, then the sequence continues.
If the air switch opens during the main firing cycle, the system will either lockout
or recycle, depending on the DIP switch recycle selection.
Main Fuel Valve Closed
Switch (Terminal V)
Low Fire Start
Purge and No-Purge models: the Veri-Flame can be interlocked with the
main valve closed switch. This feature checks the switch position before
start-up and after shutdown to insure proper valve operation when the
jumper on the base is cut.
For modulation models: when wired, the system checks for the low fire start
position prior to light-off.