Boiler Operation; System Inspection; Fill The Boiler (Steam Boilers); Lighting Instructions - Smith 88 Installation And Operation Instructions Manual

8. BOILER OPERATION

A. SYSTEM INSPECTION
1. Confirm that all water, gas, and electricity are
turned off.
2. Inspect the boiler combustion chamber for
obstructions. Clear any debris from the combustion
chamber.
3. Check the condition of the burners and pilot
assembly. Make certain that there are no unusual
bends. Replace components if necessary.
4. Verify that water piping, gas piping and electrical
wiring are installed properly. Be sure that all
components are installed correctly. Refer to these
instructions as well as to component manufacturer's
instructions.
B. FILL THE BOILER
1. Gravity Systems and Pumped Return with
Condensate Units – Fill the boiler to the normal
water line as indicated on the boiler jacket. The
normal water level is about 25-7/8" above the boiler
foundation (about 2/3 of the gauge glass).
2. Pumped Return Systems with Boiler Feed Unit -
Fill the boiler using the boiler feed unit. The fill level
will depend on the control being used but should be
roughly 25-7/8" above the boiler foundation (about
2/3 of the gauge glass) when the feed pump stops.
3. Check all joints and fittings in system piping below
the water line for leaks and repair as necessary.
C. STUDY LIGHTING INSTRUCTIONS
Before starting the boiler, study the Lighting Instructions
supplied with the boiler. Figure 8.2 and 8.3 show typical
Lighting Instructions for typical boilers.
See Table 8.1 to determine the correct figure.
Table 8.1: Lighting & Operating Instructions
Figure Selection Chart
Standing Pilot, Nat. Gas
Standing Pilot, LP Gas
Spark Ignition, Nat. Gas
Spark Ignition, LP Gas
INSTALLATION AND OPERATING INSTRUCTIONS
BTU Input
Fig. 8.2
Fig. 8.2
Fig 8.3
Fig. 8.3
D. RUN PILOT CHECK-OUT
1. Shut off all electrical power to the boiler.
2. Close Main and Pilot gas shut-off valves. Wait for
five (5) minutes.
3. Set the Operating and Limit Temperature Controls to
minimum setting so they will not call for heat.
4. Perform Pilot Check:
a. Turn main electric disconnect switch to the "ON"
position.
b. Turn up the settings on the Operating and Limit
Temperature Controls so they will call for heat.
c. Check for a continuous spark at the electronic
spark-ignited pilot.
d. Spark-ignited pilot systems – The control will
spark for 90 seconds (trial for ignition), then shut
down for a 5 to 6 minute wait period before
attempting another ignition.
e. Standing pilot systems – Within 180 seconds the
control will click, indicating a safety lockout.
f. Turn down the Operating Temperature Control to
stop the call for heat.
g. Wait 60 seconds to allow the control to reset
before proceeding with the next step.
5. Light Manual Pilot
a. Follow the procedure in the Lighting Instructions
to manually light any standing pilots.
6. Spark-Ignited Pilot Ignition Check
a. Turn up the Operating Temperature Control for a
call for heat.
b. The spark-ignited pilot should ignite.
c. Turn down the Operating Temperature Control to
stop the call for heat.
d. The spark-ignited pilot should shut off.
7. Check Main Burner Ignition
a. With the Operating Temperature Control turned
down, open the main gas shut-off valve(s).
b. Turn up the Operating Temperature Control for a
call for heat.
c. The electronic spark-ignited pilot(s) should ignite.
d. The main gas valves will then open and the main
burners should ignite.
e. Turn down the Operating Temperature Control to
stop the call for heat.
f. The electronic spark-ignited pilot(s) and main
burners should shut off.
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