Roberts Gorden BH50UT/EF Clearance Data -UTube, U-Tube,Horizontal Mount, BH15UT, BH20UT, Model

BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL

3.3 Clearance Data -U Tube

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.

4.Add 60 mm clearance to uncovered U-tube.

FIGURE 11: U-TUBE, HORIZONTAL MOUNT

A

B D

C

Model

A

B

C

D

BH15UT

150

890

1580

760

BH20UT

150

970

1730

940

BH25UT/EF

150

970

1730

940

BH30UT/EF

150

1020

1910

1000

BH35UT/EF

150

1170

1980

1090

BH40UT/EF

150

1220

2050

1150

BH45UT/EF

200

1270

2110

1200

BH50UT/EF

200

1380

2210

1300

FIGURE 12: U-TUBE, ONE SIDE REFLECTOR

A

B D

C

Model A B C D

BH15UT

150

230

1580

1200

BH20UT

150

230

1760

1380

BH25UT/EF

150

230

1760

1380

BH30UT/EF

150

230

1930

1500

BH35UT/EF

150

230

2090

1660

BH40UT/EF

150

230

2130

1710

BH45UT/EF

200

230

2160

1760

BH50UT/EF

200

230

2240

1860

FIGURE 13: U-TUBE, TWO SIDE REFLECTORS

A

B D

C

Model A B C D

BH15UT

150

590

1660

590

BH20UT

150

640

1810

640

BH25UT/EF

150

640

1810

640

BH30UT/EF

150

690

1960

690

BH35UT/EF

150

820

2110

820

BH40UT/EF

150

860

2160

860

BH45UT/EF

200

890

2210

890

BH50UT/EF

200

1020

2320

1020

FIGURE 14: U-TUBE, FULL 45° MOUNT

A

B D

C

Model A B C D

BH15UT

200

200

1500

1070

BH20UT

200

200

1650

1170

BH25UT/EF

200

200

1650

1170

BH30UT/EF

200

200

1860

1320

BH35UT/EF

200

200

1960

1550

BH40UT/EF

200

200

2040

1620

BH45UT/EF

200

200

2110

1680

BH50UT/EF

200

200

2160

1780

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