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Thermific
®
Gas-Fired Boiler
Maintenance
Page 22
5.1.5 Annually
In addition to the recommended monthly service:
1. Check burner and clean off any soot or foreign
material that may have accumulated. See Section
5.2 on "Cleaning the Burner." Check for corrosion
of the burner and its parts. If there is evidence of
deterioration or corrosion, replace immediately.
2. Inspect combustion chamber through access door
on front side of boiler. To remove doors, pull
forward slightly, then pull upward. Note any signs
of deterioration. Make repairs as necessary.
3. Inspect and clean heat exchanger. Clean exterior
of finned tubes and flush inside of heat exchanger
as required (separate from system flush).
4. Examine the venting system at least once a year.
a. Check all joints and pipe connections for
tightness.
b. Check pipe for corrosion or deterioration. If
any piping needs replacing, do so immedi-
ately.
5. Inspect heating system for other problems. This
work should be performed by qualified service
personnel.
6. Perform combustion analysis.
5.2
C
LEANING THE
B
URNER
1. Close pilot and main gas cocks.
2. Turn off the electric current to the boiler.
3. Remove the top cover of the boiler.
4. Disconnect the electrode wire.
5. Disconnect the UV scanner.
5.2.1 Semi-Annual Cleaning
1. Remove
mixer
core.
2. Brush inside of burner to remove any accumulated
dust or lint build-up.
UV Scanner
Pilot Tube
Mixer Core
Igniter
Electrode
Burner Screen
Pilot Tube is centered in
the hole to the left of the igniter.
Second row of holes.
Burner Assembly
5.2.2 Annual Cleaning
1. Disconnect the union in the line at the burner.
2. Disconnect pilot and vent line, being careful not to
disturb position of pilot.
3. Loosen and remove the four burner hold-down
bolts.
4. Carefully remove the burner.
5. Brush the inside and outside of screen to remove
all dust.
Note:
The most effective method of cleaning the
burner is to blow out the screen with compressed air.
6. Check that the ceramic portion of the ignition elec-
trode is not cracked.
7. Check the position of the ignition electrode: 3/32"-
1/8" spark gap. Check the tightness of the elec-
trode clamp.
8. Use a soft, clean cloth to remove accumulated
contaminants from the UV radiation tube (UV
scanner) glass envelope.
Содержание Thermific
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Страница 33: ...Thermific Gas Fired Boiler Parts Technical Support Page 29 On Off Logic Diagram...
Страница 34: ...Thermific Gas Fired Boiler Parts Technical Support Page 30 6 1 1a On Off IRI On Off IRI Wiring Diagram...
Страница 35: ...Thermific Gas Fired Boiler Parts Technical Support Page 31 On Off IRI Logic Diagram...
Страница 36: ...Thermific Gas Fired Boiler Parts Technical Support Page 32 6 1 2 Lo Hi Lo Lo Hi Lo Wiring Diagram...
Страница 37: ...Thermific Gas Fired Boiler Parts Technical Support Page 33 Lo Hi Lo Logic Diagram...
Страница 38: ...Thermific Gas Fired Boiler Parts Technical Support Page 34 6 1 2a Lo Hi Lo IRI Lo Hi Lo IRI Wiring Diagram...
Страница 39: ...Thermific Gas Fired Boiler Parts Technical Support Page 35 Lo Hi Lo IRI Logic Diagram...
Страница 40: ...Thermific Gas Fired Boiler Parts Technical Support Page 36 6 1 3 Water Cut Off On Off Low Water Cut Off Diagram...
Страница 41: ...Thermific Gas Fired Boiler Parts Technical Support Page 37 Lo Hi Lo Low Water Cut Off Diagram...