DR450
DR SERIES FORCED DRAFT 15# & 150#
STEAM BOILER (DR250-DR850) REVERSE CONSTRUCTION
MINIMUM
BURNER
SERVICE
(91.44)
33 13/16"
AREA
36"
(85.88)
H
D
A
B
G
15
PLAN VIEW
(22.86)
24"
(60.96)
10 15/16"
9"
C
(27.77)
MINIMUM
TUBE
REMOVAL
CLEARANCE
EFFECTIVE DATE:
REPLACES:
NOTES:
1. ALL DIMENSIONS ARE IN
INCHES THOSE IN PARENTHESES
ARE CENTIMETERS.
2. LOCATION DIMENSIONS
ARE ALL ±1/2".
3. GAS TRAIN, CONTROL AND
BURNER CONFIGURATION WILL
VARY DEPENDING ON JOB
SPECIFICATIONS & CONDITIONS.
4. DIMENSIONS ARE SUBJECT
TO CHANGE WITHOUT NOTICE.
CONSULT FACTORY FOR
CERTIFIED DIMENSIONS.
5. ALL FLANGES ARE 150#
UNLESS OTHERWISE NOTED,
FLANGES TO STRADDLE
CENTER LINE.
10/29/03
12/9/03
19
7
9
18
59 7/8"
(152.08)
13
FRONT VIEW
1. PROBE TYPE AUX. L.W.C.O.
2. FORCED DRAFT BURNER
3. RELIEF VALVE
4. ASME NAMEPLATE
5. LWCO/PUMP CONTROL - 157
5
Furnace
Pressure
2
26 3/8"
(66.99)
12
8
6. JACKET ACCESS PANELS
7. PRESSURE GAUGE
8. CLNOUT./INSP. OPNG.-1 1/2"NPT
9. ELEC. ENCLOSURE -
Tap
RIGHT SIDE VIEW
1
14
11. DRAIN/ BLOWDOWN - 1" NPT
12. BURNER CENTER LINE
13. OIL PUMP LOCATION
14. LIFTING LUG
15. FEED CONNECTION 2" NPT10. CLNOUT./INSP. OPNG. - 2" NPT
3
4
10
17
74 9/16"
(189.27)
16
71 3/4"
(182.24)
11
6
REAR VIEW
16. HEIGHT OVER JACKET
17. HEIGHT OVER SUPPLY
18. MINIMUM SAFE WATER LEVEL
19. PRESSURE CONTROLS
BOILER MODEL
A-LENGTH OVER JACKET
B-FLUE LOCATION
C-FLUE DIAMETER
D-LENGTH OVER BASE
G-SUPPLY NOZZLE SIZE
H-BURNER EXTENSION
BRYAN BOILERS
DR250
33 3/4" (85.72)
13 3/4" (34.92)
6" (15.24)
62 1/8" (157.79)
3" (7.62)
DR350 DR450 DR650 DR850
33 3/4" (85.72) 45 1/16" (114.45) 45 1/16" (114.45)33 3/4" (85.72)
13 3/4" (34.92) 13 3/4" (34.92) 13 3/4" (34.92) 13 3/4" (34.92)
6" (15.24) 8" (20.32)
62 1/8" (157.79) 73 1/2" (186.69)
CONSULT FACTORY FOR BURNER EXTENSION
783 NORTH CHILI AVE
PERU, INDIANA 46970
6" (15.24) 8" (20.32)
62 1/8" (157.79) 73 1/2" (186.69)
4" (10.16)
:
.
O
N
R
E
D
R
O
ORDER REV. NO.:
FORM NO.:
4" (10.16)3" (7.62) 3" (7.62)
2178
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