b.Increase input rate if less than 98% of rating plate input. Increase manifold gas pressure no more than 0.3 inch w.c. If measured input rate is still less than 98% of rated input:
i.Remove Main Burners per procedure in Section IX: Service.
ii.Remove gas orifices. Drill one (1) drill size larger (drill size is stamped on orifice, or see
Key No. 4E).
iii.Reinstall gas orifices and main burners.
Measure input rate.
6.Recheck Main Burner Flame.
7.Return other
N.Adjust gas input rate to boiler. LP/Propane.
1.Set thermostat to highest setting.
2.Adjust tank regulator for gas valve inlet pressure of
13.5inches w.c. or less.
3.Gas valve has step opening regulator which initially opens to 1.4 or 2.5 inch w.c. and steps to full pressure after approximately 30 seconds. Check manifold pressure after step has occurred. Adjust gas valve pressure regulator as necessary for 10.0 inches w.c. (turn adjustment screw counterclockwise to decrease manifold pressure, or clockwise to increase manifold pressure). If 10.0 inches w.c. can not be attained, check gas valve inlet pressure. If less than
11.0inches w.c., contact gas supplier for assistance.
O.Clean Heating System
Oil, grease, and other foreign materials which accumulate in new hot water boilers and a new or
reworked system should be boiled out, and then thoroughly flushed. A qualified water treatment chemical specialist should be consulted for recommendations regarding appropriate chemical compounds and concentrations which are compatible with local environmental regulations.
P.Check Damper Operation - If boiler is equipped with vent damper, vent damper must be in open position when boiler main burners are operating. Start boiler, refer to instructions on damper to determine if damper is in full open position.
Q.Install Front Removable Panel.
1.Engage top flange (longer of 2 flanges) behind
Upper Front Panel.
2.Swing lower portion of door toward boiler.
3.Lower door to engage bottom flange behind Lower
Front Tie Bar.
R.Combustion Chamber Burn-Off
1.The mineral wool combustion chamber panels contain a cornstarch based binder that must be burned out at installation to prevent odors during subsequent boiler operation.
2.Ventilate the boiler room, set the high limit to its maximum setting, set the thermostat to call for heat.
3.Allow the boiler to fire for at least an hour or until the odor from the cornstarch has dissipated.
4.Return the high limit and thermostat to their desired settings.
S.Review User’s Information Manual and system operation with owner or operator.
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