Roberts Gorden Vacuum Assisted Linear - Manual (Page 12)

B LACKHEAT ® I NSTALLATION O PERATION AND S ERVICE M ANUAL
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3.2 Clearance Data - Linear and Double Linear
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings, tees, elbows and crosses.
2. Clearances B, C and D can be reduced by 50% after 7500 mm of tubing downstream
from the burner.
3. All measurements are in millimeters.
* BH55ST only available in multiburner.
FIGURE 3: LINEAR & DOUBLE LINEAR, HORIZONTAL MOUNTS
Model BH
1
5
S
T
BH
30
DL
BH
20
S
T
BH
40
DL
BH
25
S
T
/E
F
BH
50
DL/
E
F
BH
30
S
T
/E
F
BH
60
DL/
E
F
BH
35
S
T
/E
F
BH
70
DL/
E
F
BH
40
S
T
/E
F
BH
45
S
T
/E
F
BH
50
S
T
/E
F
& BH55S
T*
A 150 150 150 150 150 150 200 200
B 890 970 970 1020 1170 1220 1280 1330
C 1570 1650 1650 1780 1930 1970 2010 2080
D 890 970 970 1020 1170 1220 1280 1330
A
C
D B
FIGURE 4: LINEAR & DOUBLE LINEAR, ONE SIDE REFLECTOR
Mo
de
l
BH15ST BH30DL BH20ST BH40DL BH25ST/EF BH50DL/
E
F
BH30ST/EF BH60DL/
E
F
BH35ST/EF BH70DL/
E
F
BH40ST/EF BH45ST/EF BH50ST/EF & BH55ST*
A 150 150 150 150 150 150 200 200
B 230 230 230 230 230 230 230 230
C 1580 1760 1760 1930 2090 2130 2160 2240
D 1200 1380 1380 1500 1660 1710 1760 1860
A
C
D B
FIGURE 5: LINEAR & DOUBLE LINEAR, TWO SIDE REFLECTORS
Model BH15S
T
BH30DL BH20S
T
BH40DL BH25S
T
/EF
BH50DL/EF BH30S
T
/EF
BH60DL/EF BH35S
T
/EF
BH70DL/EF BH40S
T
/EF
BH45S
T
/EF
BH50S
T
/EF
& BH
55S
T*
A 150 150 150 150 150 150 200 200
B 590 640 640 690 820 860 890 1020
C 1660 1810 1810 1960 2110 2160 2210 2320
D 590 640 640 690 820 860 890 1020
A
C
D B
FIGURE 6: LINEAR & DOUBLE LINEAR, 45° MOUNT
Model BH
15S
T
BH
30D
L
BH
20S
T
BH
40D
L
BH
25S
T/E
F
BH
50D
L/E
F
BH
30S
T/E
F
BH
60D
L/E
F
BH
35S
T/E
F
BH
70D
L/E
F
BH
40S
T/E
F
BH
45S
T/E
F
BH
50S
T/E
F
& BH55ST*
A 200 200 200 250 250 275 300 300
B 200 200 200 200 200 200 200 200
C 1500 1660 1660 1860 1960 2030 2110 2160
D 1370 1520 1520 1630 1750 1820 1880 2000
A
C
D B