Roberts Gorden CTHN-200, CTHN-100, CTHN-40, CTHN-125, CTHN-80, CTHN-60 Unitary U-tubeLayout Overviews

CTHN-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

FIGURE 17: Unitary U-tube Layout Overviews

	bc					LEGEND
	g		e
						Burner
20' (6 m)*	h					Reflector
Tube Length
	b					Tube
	c
	g	d	f			Tube/Reflector
						Hanger
						Coupling Assembly
30' (9 m)	h					U-tube
Tube Length
	bc					Fan Assembly
	g	d	e			(not shown)
					a =	14" (36 cm)
					reflector width (not shown)
40' (12 m)	h				b =	2" (5 cm)
					end cap to burner
Tube Length
	bc				c =	2" (5 cm)
					end cap to hanger
	g	d	e	f	d =	7'6" (229 cm)
					distance first hanger
					e =	10' (305 cm)
50' (15 m)*	h				distance between hangers
Tube Length					f = 5' (153 cm)
	b				distance between last full tube
					hanger and half tube hanger
	c
	g	d	e	e	g = 17.5" (44 cm) burner length
					h =	9.5" (24 cm) burner height
					*20' (6 m) & 50' (15 m) tube length
60' (18 m)	h				heaters require the last reflector
					before the u-tube to be cut in
Tube Length					half for use on both sides.
	bc
	g	d	e	e	f
70' (21 m)	h
Tube Length
	bc
	g	d	e	e	e
80' (24 m)	h
Tube Length

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