Operation, Setting the complete turndown range – Fulton Vantage (VTG) Fully Condensing Hydronic Boiler User Manual

Page 46

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© The Fulton Companies 2013

3-10

OPERATION

VTG-IOM-2013-0815

SECTION 3



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WARNING

All information in this manual is for
reference and guidance purposes,
and does not substitute for required
professional training, conduct,
and strict adherence to applicable
jurisdictional/professional codes and
regulations.

Non-Fulton product information is for
reference purposes only. No Fulton
document should substitute for full
review of documentation available
from the component manufacturer.

4. Check combustion and adjust the servo motors are required. To adjust a

servo motor, arrow to it and press Enter. Then adjust the setting as required
and press Enter. You can now adjust another servo motor if needed.

5. When combustion is properly set of that point, press Escape once more. If

it asks you to store the point, press Enter. Note the AZL will only ask to save
if either servo value has been altered. Low fi re is now set and stored.

Setting the Complete Turndown Range

NOTE:

It is only necessary to approximate the setting through the

modulation range until high fi re conditions are established.

Proceed as follows:

1. Press Enter to have access to the point number fi eld. Increase the point

number by one and press Enter.

2. Select ChangePoint and press Enter. The servos will now move to that

point.

3. Verify combustion is satisfactory.

4. Measure input or monitor last elbow pressure. Verify that these points are

in general correspondence with the test fi re sheet.

5. Repeat above until the point position has a load value of 100%. You are

now at high fi re. Verify combustion is per test fi re sheet.

6. If operating on gas, adjust the incoming gas pressure at the main gas

regulator to match the test fi re report. Adjust the gas servo motor to
change the last elbow pressure to match the test fi re report. Adjust the air
servo motor to adjust the emissions as needed.

7. If operating on oil, adjust the oil pump and air pressure regulator to match

the pressures on the test fi re sheet. Adjust the oil servo until the oil fl ow
rate matches the test fi re sheet. Adjust the air servo to match the test fi re
sheet.

8. Repeat the procedure for setting low fi re but start at the high fi re point

number. Continually decrease the point number after combustion has
been verifi ed at each point.

If the burner loses fl ame while driving to a point:

» Turn the main ON/OFF switch to OFF. Reset the loss of fl ame

fault by depressing (for 3 seconds) the Flame Safeguard Reset
pushbutton. The red light on the panel box door should go out.

» Adjust the air and gas servos for that point while the burner is off .

» Turn the main ON/OFF switch to ON.

9. Once all the points have been verifi ed, press Escape until you are back to

the main menu.

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