Roberts Gorden HE15ST Undershield, HE30DL, HE20ST, HE40DL, HE25ST, HE50DL, HE30ST, HE60DL, HE35ST

SECTION 3: CLEARANCES TO COMBUSTIBLES

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 7: LINEAR & DOUBLE LINEAR, 2 FOOT DECO GRILLE, PROTECTIVE GRILLE
A	Model	HE15ST HE30DL	HE20ST HE40DL	HE25ST HE50DL	HE30ST HE60DL	HE35ST HE70DL	HE40ST	HE45ST	HE50ST
	A	150	150	150	150	150	150	200	200
C	B	890	970	970	1020	1170	1220	1280	1330
B	D
	C	1570	1650	1650	1780	1930	1970	2010	2080
	D	890	970	970	1020	1170	1220	1280	1330

FIGURE 8: UNDERSHIELD **

A			Model
			A
C	B	D	B
			C

D

** When installed in the first 3 m.

HE15ST HE30DL

150

990

840

990

HE20ST HE40DL

150

1020

965

1020

HE25ST HE50DL

150

1270

1120

1270

HE30ST HE60DL

150

1270

1120

1270

HE35ST HE70DL

150

1370

1220

1370

HE40ST

150

1400

1270

1400

HE45ST

-

-

-

-

HE50ST

-

-

-

-

FIGURE 9: LINEAR & DOUBLE LINEAR, VENTING

	E
Radiant tubes	Fan

F

Model

E

F

HE15ST HE30DL

1000

500

HE20ST HE40DL

1000

500

HE25ST HE50DL

1000

500

HE30ST HE60DL

1000

500

HE35ST HE70DL

1000

500

HE40ST

1000

500

HE45ST

1000

500

HE50ST

1000

500

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