AERCO AM Series Boiler User Manual - Manual (Page 99)

AM Series Boilers and Water Heaters
CHAPTER 5 – OPERATION
OMM-0100_0B AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 99 of 156
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5.1.1 Control Panel Display - Boilers
During normal operation, the display remains off, except if the unit goes into Lockout, or has A
Blocking error. Pressing any button will activate the display, which will stay on for 30 minutes
from the time of the last button press.
5.1.2 Startup Procedure - Boilers
This section applies only to AM Series boilers. For Water Heaters, refer to the next section 5.1.
Boiler Startup Procedure
1. Open the manual gas shutoff valve.
2. Switch ON electric power to the boiler.
3. If the display shows code Err 65, it means that the polarity has not been observed between
phase and neutral (Call service department to restore the situation, do not attempt to repair
it).
4. Press button or to setup the heating temperature desired, then press RESET
key to save the change.
5. Press button and to setup the domestic hot water temperature desired, then
press RESET key to save the change.
The flame control will start-up the burner. If the burner fails to ignite within 60 seconds, the
boiler will automatically attempt ignition another four times, after which if it fails to start-up, it will
shut down and the display will show Loc 01 together with icon .
If the boiler goes into any lockout or blocking error, the display will show icon and the
corresponding burner icon ( or ) will blink.
To restore the normal operating condition, press RESET key one time and the display will show
the type of lockout. Press the RESET key again. To return to normal display mode, press and
hold the RESET button for at least 5 seconds.
The boiler will automatically attempt another start-up.
Now the boiler will continue to operate in relation to the service requested and will show:
The icon if the heating service is enabled.
Blinking if heating service is active (boiler is warming the heating plant).
The icon if a domestic hot water service is enabled;
Blinking if a domestic hot water service is active (and boiler is loading an indirect water
heater);