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Start-Up Procedures
Items To Be Checked Before Lighting The ABH
It is recommended that you read the General Information Section (page 6-11) to get a better understanding of how the ABH operates
before you start the unit and use the Start-Up Checklist as a check and to document and confirm all conditions are correct. All ABH
start ups should be conducted by properly qualified professionals.
1. Make sure that you follow the lighting instructions before running the ABH.
2. Check and make sure the circulating pump is running, and that the pressure transducers and/or flow switch are operating
correctly.
3. Make sure that the Gas is turned on outside the bottom of the cabinet of the ABH.
4. Double check to be sure the temperature setting is correct.
5. Make sure the unit is properly grounded and the electrical wiring meets the requirements of the Electrical section (page
12–13).
6. Make sure that no valves are placed between the relief valve and the appliance. The relief valve must be installed in such
a manner that the discharge will be conducted to a suitable place for disposal when relief occurs. Ensure that no reducing
coupling or other restriction is installed in the discharge line, and that the discharge line is installed to allow complete drainage
of both the valve and the line.
7. Turn on the power to the ABH. The Setpoint Temperature of the ABH will appear in the display at this time. If a fault code
appears, correct the fault before operating. The ABH will now run its pre-purge and ignition cycles, then begin heating, which
will be indicated by the orange flame in the lower right corner of the display..
Lighting Instructions
For Your Own Safety, Read Before Operating!
1. This appliance does not have a pilot light. It is equipped with an ignition device which automatically lights the burner. Do not
try to light the burner by hand.
2. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to thefloor because some gas is heavier
than air and will settle on the floor.
What To Do If You Smell Gas
-Do not try to light any appliance.
-Do not touch any electric switch; do not use any phone in your building.
-Immediately call your gas supplier from a neighbor’s phone. Follow the gas suppliers’ instructions.
-If you cannot reach your gas supplier, call the fire department.
3. Turn on gas shutoff valve (located outside the cabinet on the bottom of the appliance) so that the handle is aligned with the gas
pipe. If the handle will not turn by hand, don’t try to repair it; call a qualified service technician. Force or attempted repair may
result in a fire or explosion.
4. Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the
appliance and to replace any part of the control system and any gas control which has been under water.
5. The ABH Heater shall be installed so the gas ignition system components are protected from water (dripping, spraying, rain,
etc.) during appliance operation and service (circulator replacement, condensate trap, control replacement, etc.).
WARNING! If you do not follow these instructions exactly, a fire or explosion may result,
causing property damage, personal injury, or loss of life.
