Operating Instructions - UTICA BOILERS SFH-3085 Installation, Operation & Maintenance Manual

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 fl ue and, using
mirror, check for obstruction.
Safety Relief Valve
WARNING
!
Burn and scald hazard. Safety relief valve could
discharge steam or hot water during operation.
• Operate lever of safety relief valve, on boiler
periodically to make sure it is functioning properly.
• Safety relief valve should open before water pressure
exceeds 30 psi. reading on gauge. If this pressure is
exceeded and safety relief valve leaks water when
boiler is operating at normal pressures, it should be
immediately replaced.
• Corrosion can build up rapidly at valve seat and
prevent its functioning as safety device. See Figure
#11, page 13.
Start-Up And Adjustment Of Oil Burner
(See oil burner instructions for nozzle and electrode
setting)
A. Check oil burner nozzle to make certain it is tight in
adapter. Burner mounting bolts should be tight.
B. Check electrode setting, they may have been jarred
out of position during transportation.
C. Lubricate burner motor and circulator motor if
required. Some circulators are water lubricated and
do not require oiling.
D. Set room thermostat to call for heat, or jump
thermostat contacts on the boiler control.
E. Open all oil line valves.
F. Turn service switch on. Burner should start.
G. On one pipe fuel systems only, vent pump as soon
as burner starts. Allow oil to run until all traces of
air in the suction line disappear.
H. Turn "OFF" burner and install pressure gauge port
on pump.
I. Start burner again and check oil pressure for 140
psi.. Adjust if necessary.
OPERATING INSTRUCTIONS
Do not set fi re 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. Bacharach or Dwyer test kits include these
instruments.
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
#20. A ¼" diameter hole will be required in fl ue pipe
between boiler and barometric damper (if used) to take
draft, CO
shutter on oil burner to obtain "trace" of smoke. Measure
CO at this point. Increase air adjustment to lower CO
2
approximately one (1) percent. Check to insure minimum
negative .02 w.c., (water column), "overfi re" draft and
zero (0) smoke. If - .02 w.c. "overfi re" draft can not be
maintained, changes and/or modifi cations may be required
in venting or chimney.
Following table (page 21) is provided as guideline for
initial start-up. Final adjustments MUST be made using
combustion instruments as previously mentioned.
Check Safety Control Circuit - after burner adjustments
have been made for satisfactory performance.
1.
High limit control: remove cover and note temperature
setting. See Figure #20. With burner operating,
decrease setting to minimum point. When boiler water
temperature exceeds this set point, high limit switch
will open, shutting off power to oil burner. Return
setting to desired high limit point. Burner should
restart. Refer to instructions included with limit.
2.
Primary control and fl ame sensor check following:
A. Flame failure - simulate by shutting off oil supply
with hand valve while burner is on. Sixty seconds
after fl ameout, the safety switch locks out, ignition
stops, motor stops and oil valve - when used -
closes. To restart, open oil supply valve and reset
safety switch.
B. Ignition failure - with burner off, close oil supply
valve and run through start-up procedure, The
safety switch should lock out as in fl ame failure.
20
, smoke and temperature readings. Adjust air
2
indicator and
2
2