Table of Contents
Advertisement
4. Put the control in the pilot test mode (see step 2 of
Minimum Pilot Test above).
5. Start the system normally. Observe the flame signal
during spark and after the trial for ignition. Spark
interference causes the signal during the spark to differ
more than 2 VDC from the signal after the spark.
6. If spark interference is observed, try to minimize its
affect:
a. Ensure proper grounding for the ignition circuit.
b. Isolate the scanner from ground and/or remove
the shield connection from ground.
c. Check for proper spark gap.
d. Clean, repair, or replace faulty wiring and
connectors.
e. Separate or shield the scanner wiring from the
ignition wiring.
f. Reverse the wires feeding the primary to the
ignition transformer.
g. Move the location of the ignition transformer.
Pilot Flame Failure Test
1. Put the control in the pilot test mode (see step 2 of
Minimum Pilot Test above).
2. Start the system normally.
3. After the pilot has lit, manually turn off the fuel supply.
The controller should lock out of flame failure. If not,
then the controller is detecting a false flame signal. Find
the problem and correct it before resuming normal
operation.
Main Flame Failure Test
1. Put the control in the "Run" position (see step 6 of
Minimum Pilot Test above).
2. Start the system normally.
3. After the sequence lights the main flame, manually shut
off the fuel supply. If the control does not shut down in
less than 4 seconds after visually observing that the
flame extinguished, it may be detecting a false flame
signal. Find the problem and correct it before resuming
normal operation.
Process Conditions Test
1. Start the system normally.
2. Observe the flame signal as the system operates at
various firing rates under process (at temperature)
conditions.
3. Perform the Main Flame Failure Test under these
conditions and verify that the control shuts down in less
than 4 seconds after visually observing that the flame
extinguished.
Limit & Interlock Tests
Periodically check all interlock and limit switches by
manually tripping them during burner operation to make
Eclipse 90° UV Scanner, V2, Instruction Manual 852, 5/26/2016
44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวี ว ั ฒ นา กทม. 10170.
website:
https://www.add-furnace.com/
Line ID: @add11 e-mail: add028883472@gmail.com
sure they cause a system to lock out.
โทร: 02-888-3472
5
Advertisement
Table of Contents
