AERCO Modulex EXT 321 - 1123 - Manual (Page 67)

MODULEX EXT 321, 481, 641, 802, 962, 1123 BOILERS
Installation, Operation & Maintenance Manual
FOR YOUR SAFETY READ BEFORE OPERATING
WARNING: If you do not follow these instructions, a fire or explosion may result
causing property damage, personal injury, or loss of life.
A. 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.
B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell
next to the floor, as some gas is heavier than air and will settle on the floor.
C. Use only your hand to turn the gas ball-valve knob. Never use tools. If the knob will
not turn by hand, do NOT try to repair it, but rather call a qualified service technician.
Force or attempted repair may result in a fire or explosion.
D. Do not use this appliance if any part has been submerged 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 device that has been submerged under water.
WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance
• Do not touch or operate any electric switch
• Do not use any phone in the building
• Immediately call your gas supplier from a neighbors phone or
from outside with your cell phone and follow the gas supplier’s
instructions.
OPERATING INSTRUCTIONS
1. STOP! Read the safety information above on this warning.
2. Turn off all electric power to the appliance.
3. Open the gas valve.
4. Check gas and water pressure.
5. Wait five (5) minutes to clear out any gas, then smell for gas, including near the floor.
6. If you smell gas, STOP! Follow the instructions “WHAT TO DO IF YOU SMELL GAS” that
are printed above in these warnings. If you do not smell gas, go to the next step.
7. Turn on all electric power to the appliance.
8. Turn the start-up switch (next to the E8 controller) to the ON position. Replace the control
access panel.
9. Set Thermostat to the desired temperature.
10. If the appliance will not operate, follow instructions to turn off the gas (see below), and then
call your service technician or gas supplier.
TO TURN OFF GAS TO APPLIANCE
1. Set the thermostat to its lowest setting.
2. Turn off all electric power to the appliance if service is to be performed.
3. Close the gas valve.
OMM-0087_0E AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 67 of 148
GF-143 Phone: 800-526-0288 12/01/14