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AM Series Boiler & Water Heater User Manual
CHAPTER 8 – UNIT START-UP
8.
Set value of parameter 2201 to LOW. The Burner 1 (Master) will now run for 20 minutes at
low fire input.
9.
Wait 2 to 3 minutes for the CO
10.
Compare the CO
reading with the low fire range given in Table 8-1, making sure to use the
2
range for the gas type in use. The CO
STOP the unit and call the Factory service department (see phone number on the last cover
page).
11.
Set Parameter 2201 in the Installer Menu (Section 9.16) to OFF.
12.
Repeat this process for burners 2, 3, and 4 as applicable, using parameters 2202-2204 to
calibrate each burner in turn.
Close the combustion analysis probe "H" in Figure 6-2 with a suitable cap in accordance
13.
with the vent pipe manufacturers' instructions.
WARNING!
Once the analyzer probe cap in Figure 6-2 is correctly installed with the unit at high fire,
check that there are no leaks and that the cap is mechanically secure.
8.8 Lost Ignition Procedure
If the burner will not stay lit long enough to perform combustion calibration, perform the following
steps:
1.
Ensure the gas pressure to the unit is between 3"-13" W.C., ensure that parameter 3002 is
set correctly on each burner, and that the gas valve has the appropriate gas orifice for either
natural gas or propane.
2.
Turn the setpoint to OFF.
3.
For burner 1, turn parameter 2201 to IGN, for burner 2 use parameter 2202, etc.
4.
Change the setpoint to 90°F.
5.
Allow the unit to fire.
strength is 3.0. If the burner does not light, back the adjustment screw "E" fully out
counterclockwise.
6.
Repeat ignition trial. If the burner fails to stay lit, turn the adjustment screw one turn
clockwise.
7.
This procedure may be repeated for LOW and HIGH fire if necessary.
8.9 Minimum Water Flow
This unit is self-protected against low water flow. A flow meter (Item 16 in Figure 2-7)
continuously monitors the water flow to each burner. If the water flow decreases below the
Minimum Water Flow in Section 11: Technical Data, the burner automatically shuts off.
This value is adjustable via parameter 3035.
OMM-0100_E • GF-146 • 11/15/2019
Combustion Calibration - Continued
to stabilize.
2
reading must be inside the specified range; if not,
2
Lost Ignition Procedure
Monitor parameter 1008 (flame strength).
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
The minimum flame
Page 101 of 170
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