32
1
.
TO REMOvE BURNERS FOR CLEANING,
ChANGING ORIFICE PLUGS, OR REPAIRS.
a. Remove the jacket front panel.
b. disconnect pilot tubing at the gas valve. See
Figure 17.
c. disconnect 3-wire plug at the gas valve.
d. 40mm burners only. Remove injection shield
assembly, where used. See Figure 26.
e. Remove wires to flame roll-out switch.
f. Remove the burner access panel.
g. Mark the location of the pilot main burner on the
manifold if the marking on manifold is missing
or obliterated.
h. hold burner at throat. Lift front of burner to
clear orifice. Burner which holds pilot can only
be removed by lifting the burner adjacent to its
right first.
i. Brush top of burners with a soft bristle brush, see
Figure 26. Vacuum burners. Check orifices to see
that drilled passageways are free of lint or dirt.
j. vacuum tip of Pilot Burner.
2. CLEAN FIREBOx by vacuuming. Exercise care
not to disturb insulation inside the base.
3. INSTALL BURNERS by reversing procedure used
to remove burners. Make sure burner with pilot
assembly is in same location as original installation
- see Table 10.
Check burners to see that they are located properly
in slot at rear of burner tray, see Figure 26. Reinstall
injection shield assembly (40mm burners only,
where used) and burner access panel. Reconnect
flame roll-out switch wires, gas valve wires and
pilot lead.
4. ChECk MAIN BURNER and PILOT FLAMES,
see procedure in Section vII Start-up and Checkout,
paragraphs d and E.
E.
ChECk ALL CONTROLS ANd dAMPER
OPERATION ANNUALLY see procedure in Section
vII Start-up and Checkout, paragraphs F through I.
F.
INSPECT LOW WATER CUTOFF (if used)
1. Clean and test probe-type per manufacturer's
instruction.
2. Flush float-type weekly or as recommended by
manufacturer.
G.
REMOvAL OR REPLACEMENT OF PILOT
ASSEMBLY OR PILOT ASSEMBLY PARTS
If pilot assembly or pilot orifice spud need replacing,
remove main burner with pilot using procedure
described in paragraph (d).
1. To replace orifice spud:
a. disconnect pilot tubing. The honeywell Q3481B
pilot orifices are spud type retained by the
compression fitting. Replace with desired orifice
spud. See key No. 5B in Repair Parts Section.
b. Reconnect pilot tubing and check for leaks.
2. To replace complete pilot assembly.
a. Remove machine screw holding pilot burner to
pilot bracket.
Figure 26: Burner Cleaning and Installation
1" Burner
40mm Burner
IX. SERVICE AND mAINTENANCE (continued)
Table 10: Pilot Burner Location
Boiler
Model
Main Burner with
Pilot Bracket *
Pilot Burner Located
Between Main
Burners *
1 Inch
40mm
1 Inch
40mm
202
1
1
1 & 2
---
202X
1
1
1 & 2
1 & 2
203
1
1
1 & 2
1 & 2
204
2
2
2 & 3
2 & 3
205
3
2
3 & 4
2 & 3
206
4
3
4 & 5
3 & 4
207
6
3
6 & 7
3 & 4
208
7
4
7 & 8
4 & 5
209
8
4
8 & 9
4 & 5
210
9
5
9 & 10
5 & 6
* Main burners numbered left to right as viewed from
front of boiler.
Содержание B series 2
Страница 10: ...10 IV Boiler Water Piping continued Figure 5 Recommended Water Piping for Zone Valve Zoned Heating Systems...
Страница 11: ...11 IV Boiler Water Piping continued Figure 6 Recommended Water Piping for Circulator Zoned Heating Systems...
Страница 19: ...19 Figure 13 Connection Wiring Diagram Intelligent Hydronic Control VI Electrical continued...
Страница 20: ...20 Figure 14 Ladder Wiring Diagram Intelligent Hydronic Control VI Electrical continued...
Страница 21: ...21 Figure 15 Wiring Schematic Zone Valves Figure 16 Wiring Schematic Zone Circulators VI Electrical continued...
Страница 23: ...23 Figure 19 Operating Instructions VR8204 and VR8304 Gas Valves VII Start up and Checkout continued...
Страница 40: ...40 Section Assembly and Canopy Group XI Repair Parts continued...
Страница 44: ...44 Manifold and Main Burners 1 Inch Main Burners XI Repair Parts continued...
Страница 50: ...50 XI Repair Parts continued Jacket Assembly...
Страница 52: ...52 Water Trim XI Repair Parts continued...
Страница 59: ...59...
Страница 60: ...60 U S Boiler Company Inc P O Box 3020 Lancaster PA 17604 1 888 432 8887 www usboiler net...
