Normal Sequence Of Operation; Operating Instructions - UTICA BOILERS BC3D Installation, Operation & Maintenance Manual

On a call for heat, the thermostat will actuate, completing
the circuit to the aquastat. In turn, the circulator and
ignition systems are activated and ignition will begin.
In the event the boiler water temperature exceeds the high
limit setting on the boiler mounted aquastat, power will be
interrupted between the aquastat and the ignition system.
The power will remain off until the boiler water temperature
drops below the high limit setting. The circulator will
continue to operate under this condition until the
thermostat is satisfied
.
The venting system should be inspected at the start of each
heating season. Check the vent pipe from the boiler to the
chimney for signs of deterioration by rust or sagging joints.
Repair if necessary.
Remove the vent pipe at the base of the chimney or
flue and, using a mirror, check for obstruction and verify
compliance to the latest revision of the NFPA 211.
Figure #17
!
Water will be boiling hot

NORMAL SEqUENCE OF OPERATION

OPERATING INSTRUCTIONS

WARNING
.
!
Water will be boiling hot.
The lever of the pressure relief valve, shown in Figure
#17, on the boiler should be operated periodically to make
sure that it is functioning properly. The pressure relief
valve should open before the water pressure exceeds the
30 lb. reading on the gauge. If this pressure is exceeded
and the pressure relief valve leaks water when the boiler
is operating at normal pressures, it should be immediately
replaced. Corrosion can build up rapidly at the valve seat
and prevent its functioning as a safety device.
START-UP AND ADJUSTMENT OF OIL BURNER
(See oil burner instructions for nozzle and electrode setting)
DO NOT SET FIRE VISUALLY.
Instruments are the only reliable method
to determine proper air adjustments.
An improperly adjusted burner causes
soot and high fuel bills because of
incomplete combustion of the fuel oil.
This in turn may require excessive
!
boiler maintenance, service costs, and
in some instances, house cleaning or
redecorating.
mechanic should be consulted to make
the proper adjustments with a smoke
tester, CO
2
NOTE: Bacharach or Dwyer test kits include
A. Check oil burner nozzle to make certain it is tight in
adapter. Burner mounting bolts should be tight.
B. Check electrode setting, as they may have been
jarred out of position during transportation.
C. Lubricate burner motor if necessary.
15
WARNING
CAUTION
A competent
indicator, and draft gauge.
these instruments.
service