Service - Burnham 2PV Series Installation, Operating And Service Instructions

VIII. Service
A.
General. Inspection and service should be conducted
annually. Turn off electrical power and gas supply while
conducting service or maintenance. Follow instructions
TO TURN OFF GAS TO APPLIANCE. See Figure 17.
C A
L a b l e a l l w i e r s p r o i
s e v r c i n i g c o n r t l o . s
i m p o r p r e a n d d a n g
p o r p r e o p r e t a o i n a t f
B.
Inspect Housekeeping. Boiler area must be clear and
free from combustible materials, gasoline and other
fl ammable vapors and liquids. Remove obstructions to
the fl ow of combustion and ventilation air.
C.
Service Low water cut-off (if so equipped). Follow
instructions provided with low water cut-off
D.
Inspect Vent System for obstructions in vent pipe, soot
accumulation, deterioration of pipe or joints, and proper
support:
1. Remove vent connector and vent pipe. See Figure
19.
2. Remove all obstructions. Check and clean vent
terminal screens.
3. Remove soot accumulations with wire brush and
vacuum.
4. Replace deteriorated parts.
5. Repair deteriorated joints. See Section V: Venting.
E. Inspect Boiler Flue Passages for blockage or soot
accumulation. See Figure 19.
1. Disconnect vent connector from blower discharge
fl ange.
2. Remove sheet metal screws securing Jacket Top
Panel. Lift panel and rotate about relief valve piping
until top of boiler is exposed. If piping or wall
prevent full rotation of top panel for access to
canopy, cut slot into relief valve opening and
remove top panel.
3. Disconnect blower connection from wiring harness
in vestibule.
4. Remove bolts securing canopy to boiler sections.
Cut silastic sealant around base of canopy, pry
canopy from boiler sections and remove canopy/
blower assembly from boiler.
5. Using fl ashlight, examine all fl ue passageways.
a. If passageways are free of soot and obstruction,
replace canopy, secure and seal using kit
available from Burnham Distributors, Part No.
6111716.
24
U T O I N
r o t d s i c o n n e t c o i n w
W r i n i g r e o r s r c a n c
e o r u s o p r e t a o i . n V e
r e s e v r c i n i . g
b. If passageways need cleaning, remove burners as
h e n
a u s e
i r y f
C a n o p
S l i c i o n
D u y t . )
6. Reinstall jacket top panel, vent pipe and vent
connector in reverse manner. Reconnect electrical
connector to blower.
F.
Clean Main Burners and Firebox.
1. To remove burners for cleaning, changing orifi ce
plugs, or repairs:
a. Remove jacket Front Panel.
b. Disconnect pilot tubing at gas valve.
c. Disconnect igniter/sensor cable and ground wire
d. Disconnect Flame Rollout Switch wires.
e. Remove Burner Access Panel.
f. Mark Pilot Main Burner location on Manifold.
g. Hold burner on throat. Lift slightly to clear
2. Brush top of burners with a soft bristle brush. See
Figure 19. Vacuum burners.
3. Check orifi ces. Drilled passageways must be free of
lint or dirt.
4. Vacuum tip of Pilot Burner.
5. Clean fi rebox by vacuuming. Exercise care not to
disturb insulation inside base.
6. Install burners by reversing procedure used to
remove burners. Burner with pilot assembly must be
in same location as original installation. See Table 7.
Burners must be properly located on support bracket
at rear of burner. See Figure 11. Slide burner over
orifi ce.
7. Reconnect pilot gas supply, igniter/sensor cable, and
ground wire. Reinstall Burner Access Panel.
Reconnect Flame Rollout Switch wires.
G.
Check operation. Follow Paragraphs D through O
from Section VII: System Start-up.
described in Paragraph F below. Using long
handle wire or bristle fl ue brush and vacuum,
brush fl ueways thoroughly from top of boiler as
illustrated in Figure 19. Replace canopy and seal
using kit available from Burnham Distributors,
Part No. 6111716.
W A R N N I
y m u t s b e e r s e a e l d w
e R u b b r e S e a a l t n 5 (
at Ignition Module.
orifi ce. Pull burner from combustion chamber.
See Figure 11. Pilot Main Burner can only be
removed by lifting at 45° angle after adjacent
burner to right is removed.
G
i h t R T V 7 - 3 2
0 0 F ° I t n r e m t i e t t n