Roberts Gorden Blackheat BH15 UT Installation & Servicing Instructions Manual page 6

171 mm
END VIEW
317 mm
Figure 1. Blackheat U-Tube and Linear Tube Configurations
2 2 . . 6 6 B B U U R R N N E E R R S S P P E E C C I I F F I I C C A A T T I I O O N N
BH15
B B u u r r n n e e r r A A i i r r P P l l a a t t e e
Identification Number:
BH15
J J e e t t N N u u m m b b e e r r
Natural G20 & G25 3.4 mm 3.8 mm 4.3 mm 4.7 mm 4.9 mm 5.4 mm 5.8 mm 6.0 mm
Propane/Butane 2.1 mm 2.35 mm 2.7 mm 3.0 mm 3.2 mm 3.4 mm 3.6 mm 3.75 mm
Pressure Couple 1.95 mm 2.25 mm 2.5 mm 2.7 mm 2.9 mm 3.2 mm 3.25 mm 3.4 mm
BH15
G G a a s s C C o o n n s s u u m m p p t t i i o o n n * *
Natural G20 (m 3 /h) 1.43
Natural G25 (m 3 /h) 1.66
Propane (m 3 /h) 0.56
Butane (m 3 /h) 0.43
BH15
G G o o v v e e r r n n o o r r P P r r e e s s s s u u r r e e
Butane (mbar) 21.4
Butane (in wg)
Natural G20:
Natural G25:
Natural G20 Hi/Lo :
Natural G25 Hi/Lo :
Propane:
4
PLAN VIEW
Fan
273 mm
PLAN VIEW
SIDE VIEW
BH20 BH25
14 15 12
BH20 BH25
BH20 BH25
1.91 2.38
2.22 2.77
0.75 0.94
0.57 0.72
(*) Based on Gross Caloric Value
BH20 BH25
19.7 19.2
8.6 7.9 7.7
8.7 mbar
11.1 mbar
8.7/5.0 mbar
11.1/6.5 mbar
27 mbar
Flanged Burner Tube
Swirler
Fan Tube
Heat Exchanger Length
100 mm
Heat Exchanger Length
BH30 BH35 BH40
6 7 9
BH30 BH35 BH40
BH30 BH35 BH40
2.86 3.34 3.81
3.32 3.88 4.43
1.13 1.32 1.51
0.86 1.00 1.15
BH30 BH35 BH40
17.4 18.2 17.9
7.0 7.3 7.2
3.5 in wg
4.5 in wg
3.5/2.0 in wg
4.5/2.6 in wg
10.5 in wg
100 mm
U-Tube
Swirler
BH45 BH50
10 11
BH45 BH50
BH45 BH50
4.29 4.77
4.99 5.54
1.69 1.88
1.29 1.43
BH45 BH50
16.9 18.4
6.8 7.4
254 mm
Fan