Fulton Vantage (VTG) Fully Condensing Hydronic Boiler - Manual (Page 51)

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3-15
SECTION 3
VTG-IOM-2013-0815
OPERATION
Ð
WARNING
Non-Fulton product information is for
reference purposes only. No Fulton
document may substitute for full
review of documentation available
from the component manufacturer.
Operating this equipment beyond
its design limits can damage the
equipment and can be dangerous.
Do not operate the equipment
outside of its limits. Do not try to
upgrade the equipment performance
through unapproved modifi cations.
Unapproved modifi cations may
cause injury, equipment damage, and
will void the warranty.
 Test of Ignition Safety System
Test the ignition system safety shutoff as follows:
1. Remove the black plug/connector from the main gas valve (it is held on
with a central screw).
2. With the main gas cock (inlet manual gas valve) open, the burner should
be cycled on. After all the safety limits such as gas pressure, water fl ow and
temperature are satisfi ed, the blower will run and pre-purge the boiler.
3. Once the purge is complete (30 seconds), the ignition transformer will be
energized. There will be a 4 second trial for ignition period. During this
period, indicator lights on the fl ame safeguard (pilot and main)
4. The main gas valve will not open because there is no power to the valve
due to the disconnected wires. Hence, no fl ame will be established and the
fl ame safeguard will not receive a fl ame signal from the UV scanner.
5. After 4 seconds, the fl ame safeguard programmer will assume a “Flame
Failure” condition and go to a “lockout” mode. Lockout will require manual
reset of the fl ame safeguard.
6. After completing this test, turn off the boiler and reconnect the wires to
the main gas valve.
Perform Test of Low Water Cut Off
Once the boiler is full of water the following test can be accomplished:
1. Turn the boiler on, this will start the Call for Heat sequence.
2. Press and hold the Low Water Test button for 3 seconds. The Low Water
light should illuminate and the boiler should shut down the Call for Heat
sequence.
3. Reset the Low Water condition by pressing the Low Water reset button and
the LMV Reset button. Boiler should start the Call for Heat sequence again.
4. Perform appropriate test for any secondary Low Water controls.
Perform Test of Limit Controls
Fire the boiler and test the high limit control as follows:
1. Alter high temperature limit to a value lower than the anticipated loop
temperature. Turn the boiler on. Water temperature will rise until the
boiler locks out. This condition has to be manually reset.
2. Alter the high limit cut off temperature to normal level, typically 10-20
degrees above set point.