UTICA BOILERS SFH Series Installation, Operation & Maintenance Manual page 23

14.1 Operating Instructions
1.
Inspect venting system at start of each heating season�
2.
Check vent pipe from boiler to chimney for signs
of deterioration by rust or sagging joints� Repair if
necessary�
3.
Remove vent pipe at base of chimney or flue and, using
mirror, check for obstruction�
14.2 Safety Relief Valve - Follow valve manufacture
specific instructions for operation and maintenance.
!
WARNING
Burn, scald hazard� Do not attempt to start the
burner when excess oil has accumulated, when
the unit is full of vapor, or when the combustion
chamber is very hot�
NOTICE
Use only number 2 fuel oil� Do not use gasoline,
crankcase drainings or any oil containing gasoline�
14.3 Start-Up And Adjustment Of Oil Burner
(See oil burner instructions for nozzle and electrode
setting)
• Check oil nozzle in burner for size, angle and type,
inspect electrode settings, check head setting, check
air band and air shutter settings� See Oil Burner,
Nozzle, & Air Settings pages 25 and 26�
• DO NOT install burner without gasket� Place oil burner
gasket on face of burner swing door with 4 burner
flange bolts installed part way.
• Align round part of key hole slots of burner flange with
burner door bolts� Turn burner to lock in place�
• Tighten all 4 cap screws using diagonal sequence�
• Plug burner power cord into burner harness�
• Attach flexible oil hose included in parts box.
Do not make firing adjustments visually. Instruments are
only reliable method to determine proper air adjustments�
Improperly adjusted burner causes soot and high fuel bills
because of incomplete combustion of fuel oil� This in turn
may require excessive boiler maintenance, service costs,
and in some instances, house cleaning or redecorating� A
competent service mechanic should be consulted to make
proper adjustments with smoke tester, CO
draft gauge�
14 - OPERATING INSTRUCTIONS
14.4 Instructions For Proper Operation Of
Boiler Burner Unit
A ¼" diameter slot is provided in inspection cover plate
to take draft readings in combustion chamber� See Figure
#22. A ¼" diameter hole will be required in flue pipe
between boiler and barometric damper (if used) to take
draft, CO2, smoke and temperature readings� Adjust air
shutter on oil burner to obtain "trace" of smoke� Measure
CO2 at this point� Increase air adjustment to lower CO2
approximately one (1) percent� Check to insure minimum
negative .02" w.c., (water column), "overfire" draft and
zero (0) smoke. If - .02" w.c. "overfire" draft can not be
maintained, changes and/or modifications may be required
in venting or chimney�
Tables on pages 25 and 26 are provided as guidelines for
initial start-up� Final adjustments shall be made using
combustion instruments�
14.5 Check Safety Control Circuit
High Limit (HL)
Low Water Cutoff (LWCO)
Primary Control And Flame Sensor
indicator and
2
23
A� Verify burner adjustments have been made�
B� Place boiler in operation�
C� Locate High Limit control� Open control cover and
locate dial setting on Economy Switch� Turn Economy
dial to off position� Economy light should be off�
D� Note dial setting on High Limit Switch - HI Temp
indicator light should be off� Lower dial set point unit
limit switch turns burner off� Hi-limit light is now lit,
indicating limit switch setting is exceeded�
E� To reset the limit - set dial setting to original position�
Indicator light will turn off when limit setting is
satisfied. Set Economy switch to original setting.
F� Close control cover�
A� With boiler operating locate test/setting buttons
near indicator light panel� Press and hold button for
five (5) seconds or more. Digital display shows LCO
and red LWCO light will illuminate� Burner circuit will
shutoff if operating properly�
B� After five (5) seconds display automatically returns
to show actual boiler temperature (default)� LWCO
indicator light, red, will shut off if there is no actual
low water condition sensed�
C� Burner operation can now be restored�
A. Flame failure - simulate by shutting off oil supply
with hand valve while burner is on. After flame
extinguishes, control goes through recycle period and
attempts another ignition then locks out�To restart,
open oil supply valve and reset safety switch� Refer
to instructions included with burner�
- See Figure #19
P/N 240009735, Rev. G [09/30/2016]