59
To adjust the low fire setting (AV500
– 600)
Use the
Advantus
Control Panel:
1. Press
[DIAGNOSTICS]
button
2. Press
[Diagnostic Tests]
button
3. Press
[Minimum Modulation]
button
4. Press
[start test]
to operate the boiler at minimum fire for 5 minutes
The
Advantus
should respond immediately and fire at minimum RPM. When this is achieved, locate the low fire adjustment screw.
Increase CO
2
Decrease CO
2
Low Fire Adjustment
Clockwise
Counter-Clock Wise
When the correct combustion values are achieved replace the screw cap back on to the gas valve.
This boiler is designed for low fire soft start. At the start of trial for ignition the fan will decelerate to minimum fire and will light off at
soft start speed before ramping up towards full input through the PWM signal from the controller.
Shut power off to the heater and open the firing valve. Switch power back on and allow the burner to fire. Ignition should be smooth.
Always make adjustments to meet the recommended CO
2
levels. Adjust low fire first followed by high fire adjustment.
To adjust the high-fire setting (AV500
– 600)
After the low fire settings are stable, ramp the boiler firing rate to 100% using the boiler control and bring the system temperatures up to
130°F or to highest system design temperatures to minimize or eliminate condensate.
Use the
Advantus
Control Panel:
1) Press
[DIAGNOSTICS]
button
2) Press
[Diagnostic Tests]
button
3) Press
[Maximum Modulation]
button
4) Press
[Start Test]
to operate the boiler at max fire for 5 minutes.
Locate the input adjustment screw on the top side of the gas valve.
Increase CO
2
Decrease CO
2
High Fire Adjustment
Counter-Clock Wise
Clockwise
After adjusting the screw wait a moment for the combustion levels to stabilize before attempting to make any further adjustments. Continue
this procedure until combustion levels are satisfied.
To adjust the low-fire setting of the
High-End Valve
(AV800)
1) Press
[DIAGNOSTICS]
button
2) Press
[Diagnostic Tests]
button
3) Move the firing rate slider to firing rate (%) indicated on test reports.
4) Press
[Start Test]
to operate the boiler at max fire for 5 minutes.
Increase CO
2
Decrease CO
2
Low Fire Adjustment
Clockwise
Counter-Clock Wise
When the correct combustion values are achieved replace the screw cap back on to the gas valve.
Summary of Contents for ADVANTUS AVH 1000
Page 2: ......
Page 3: ......
Page 38: ...31 Figure 23 Recommended Piping with Reverse Return and Variable Primary Flow...
Page 88: ...81 PART 12 EXPLODED VIEW Figure A...
Page 89: ...82 Figure B FAN BURNER ASSEMBLY AV500 600 some items may not be as shown...
Page 90: ...83 Figure C FAN BURNER ASSEMBLY AV800 4000 some items may not be as shown...
Page 91: ...84 Figure D Figure E...
Page 92: ...85 Figure F Figure G...
Page 93: ...86 Figure H CONTROL BOARD ASSEMBLY...
Page 100: ...93 PART 13 ELECTRICAL DIAGRAMS...
Page 101: ...94...
Page 102: ...95...
