Burnham 20_PV_I - Manual (Page 16)

16
Figure 17: Operating Instructions
pressure. Adjust gas valve pressure regulator as
necessary (turn adjustment screw counterclockwise
to decrease manifold pressure, or clockwise to
increase manifold pressure). If pressure can not be
attained, check gas valve inlet pressure. If less than
minimum gas supply pressure listed on rating label,
contact gas supplier for assistance.
3. Recheck Main Burner Flame
4. Adjust thermostat to normal setting.
P. 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. Allow the boiler to fire for at least an hour or
until the odor from the cornstarch has dissipated.
3. Return the high limit and thermostat to their
desired settings.
Q. Review User's Information Manual and system
operation with owner or operator.
R. Post instructions near boiler for reference by owner
and service personnel. Maintain instructions in legible
condition.