Installation & Service Manual
6Start-up
Initial Start-up
Follow the Lighting Instructions on the label applied to the appliance.
A.On boilers with the system pump delay option, the operating temperature control will energize the pump relay which energizes the pump on a call for heat. The operating temperature control will de- energize the pump relay approximately 30 seconds after the call for heat ends. If either the inlet sensor or the optional
On boilers, the pump will operate whenever the “W” terminal is energized.
B.Location - The appliance should be located within a room having a temperature safely above freezing [32°F(0°C)].
C.Shutdown and Draining - If, for any reason, the appliance is shut off, the following precautionary measures must be taken:
1.Shut off gas supply,
2.Shut off water supply.
3.Shut off electrical supply.
4.Drain the heat exchanger completely. Remove one 3/8" NPT plug or bulbwell from the inlet side and one from the outlet side of the front header of the heat exchanger.
5.Drain the pump. Remove the 3/4" plug in the performance loop.
Pre-start Checklist
1.Inspect the burners to be sure they are properly aligned.
2.Inspect the pilot gas line, thermocouple leads, ignition leads and wire connections to the gas valve to be sure none were damaged during shipment.
3.Check to ensure that gas connections have been made properly and the gas line is purged of air.
4.Check to ensure that water connections are tight and the appliance and piping system have been properly filled.
5.Ensure that discharge from the relief valve has been piped to a floor drain.
6.Verify that properly sized combustion and ventilation air openings are provided and not obstructed in any way.
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7.Check carefully for gas leaks.
8.Read the appliance’s safety warnings, lighting instructions and check out procedure carefully, before firing the system.
Lighting Instructions for Spark Ignition Pilot Models
FOR YOUR SAFETY READ BEFORE
OPERATING
WARNING If you do not follow these instructions exactly, a fire or explosion may result
causing property damage, personal injury or loss of life.
A.This appliance is equipped with an ignition device which automatically lights the pilot. Do not try to light the pilot by hand.
B.BEFORE OPERATING, smell around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle to 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 near by phone. Follow the gas supplier’s instructions.
If you cannot reach your gas supplier, call the fire department.
C. Use only your hand to turn the gas control knob. Never use tools. If the knob 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.
D.Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance. The possible damage to a flooded appliance can be extensive and present numerous safety hazards. Any appliance that has been under water must be replaced.
