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BLACKHEAT
®
HE INSTALLATION OPERATION AND SERVICE MANUAL
6 of 73
3.2 Clearances 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.
FIGURE 3: LINEAR & DOUBLE LINEAR, HORIZONTAL MOUNTS
Model
HE15ST
HE30DL
HE20ST
HE40DL
HE25ST
HE50DL
HE30ST
HE60DL
HE35ST
HE70DL
HE40ST
HE45ST
HE50ST
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
FIGURE 4: LINEAR & DOUBLE LINEAR, ONE SIDE REFLECTOR
Model
HE15ST
HE30DL
HE20ST
HE40DL
HE25ST
HE50DL
HE30ST
HE60DL
HE35ST
HE70DL
HE40ST
HE45ST
HE50ST
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
HE15ST
HE30DL
HE20ST
HE40DL
HE25ST
HE50DL
HE30ST
HE60DL
HE35ST
HE70DL
HE40ST
HE45ST
HE50ST
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
HE15ST
HE30DL
HE20ST
HE40DL
HE25ST
HE50DL
HE30ST
HE60DL
HE35ST
HE70DL
HE40ST
HE45ST
HE50ST
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