Roberts Gorden CTHN-125, CTHN-200, CTHN-100, CTHN-40, CTHN-80, CTHN-175, CTHN-60 Model, C D Unapproved

SECTION 3: CRITICAL CONSIDERATIONS

NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.

2.Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream from where the burner and burner tube connect.

FIGURE 5: U-TUBE, STANDARD REFLECTOR

Model

CTHN-40 CTHN-60 CTHN-80 CTHN-100 CTHN-125 CTHN-150 CTHN-175 CTHN-200

(inches)

A B C D

- UNAPPROVED -

5	27	56	19
5	30	61	20
5	32	63	20
5	35	66	20
5	39	73	21
8	44	75	26
8	47	76	30

(centimeters)

A B C D

- UNAPPROVED -

13	69	142	48
13	76	155	51
13	81	160	51
13	89	168	51
13	99	185	53
20	112	191	66
20	119	193	76

FIGURE 6: U-TUBE, 45°

						(inches)				(centimeters)
				Model	A	B	C	D	A	B	C	D
				CTHN-40		- UNAPPROVED -				- UNAPPROVED -
	A
B				CTHN-60	8	4	47	40	20	10	119	102
	D	CTHN-80	8	4	54	46	20	10	137	117
				CTHN-100	8	4	57	48	20	10	145	122
				CTHN-125	8	4	63	53	20	10	160	135
				CTHN-150	8	4	66	56	20	10	168	142
		C		CTHN-175	8	4	69	59	20	10	175	150
				CTHN-200	8	4	73	63	20	10	185	160

FIGURE 7: U-TUBE, OPPOSITE 45° REFLECTOR

A

B C

D

Model

CTHN-40 CTHN-60 CTHN-80 CTHN-100 CTHN-125 CTHN-150 CTHN-175 CTHN-200

(inches)

A B C D

- UNAPPROVED -

8	45	45	10
9	55	54	10
10	56	57	10
10	58	63	10
10	61	66	20
10	68	69	20
10	71	73	20

(centimeters)

A B C D

- UNAPPROVED -

20	114	114	25
23	140	137	25
25	142	145	25
25	147	160	25
25	155	168	51
25	173	175	51
25	180	185	51

5