Roberts Gorden Vacuum Assisted Linear - Manual (Page 13)

SECTION 3: C LEARANCES TO C OMBUSTIBLES
7 of 75
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.
** When installed in the first 6 m - Not for use on EF models.
* BH55ST only available in multiburner.
FIGURE 7: LINEAR & DOUBLE LINEAR, 2 FOOT DECO GRILLE
Mo
del
BH1
5S
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 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 8: LINEAR & DOUBLE LINEAR, PROTECTIVE GRILLE
Mode
l
BH15ST BH30DL BH20ST BH40DL BH25ST/EF BH50DL/EF BH30ST/EF BH60DL/EF BH35ST/EF BH70DL/EF BH40ST/EF BH45ST/EF BH50ST/EF & BH55ST*
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 9: UNDERSHIELD **
Model BH
1
5
S
T
BH
3
0
D
L
BH
2
0
S
T
BH
4
0
D
L
BH
2
5
S
T
/EF
BH
5
0
D
L
/EF
BH
3
0
S
T
/EF
BH
6
0
D
L
/EF
BH
3
5
S
T
/EF
BH
7
0
D
L
/EF
BH
4
0
S
T
/EF
BH
4
5
S
T
/EF
BH
5
0
S
T
/EF
& BH55ST*
A 150 150 150 150 150 150 - -
B 990 1020 1270 1270 1370 1400 - -
C 840 965 1120 1120 1220 1270 - -
D 990 1020 1270 1270 1370 1400 - -
A
C
D B
FIGURE 10: LINEAR & DOUBLE LINEAR, VENTING
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*
E 1000 1000 1000 1000 1000 1000 1000 1000
F 500 500 500 500 500 500 500 500
Radiant tubes Fan
Unvented
Vented
E
F