Raypak 206A, 406A, 407A, 337A, 336A, 207A, 267A, 266A operating instructions Low NOx Units

SPECIFICATIONS AND DIMENSIONS

Low NOx UNITS

B

C

INDOOR

DRAFTHOOD

31-13/16"

J

26-1/2"

ELECTRICAL

CONNECTION

20-1/2"

4-3/8"	8-7/8"
	(6-5/8" ASME)
(3-3/8" ASME)
	34"
	STACKLESS
	OUTDOOR TOP

7-3/4"

GAS

CONNECTION

A

(22-1/2" ASME)

28"

								Shipping Weights (lbs)
								Standard	ASME
	BTUH	(A)	(B)	(C)	(J)			Heater	Heater	Indoor
Heater	Input	Cabinet	Flue	Indoor	Min.	Gas	Water	w/Stackless	w/Stackless	Draft-
Model	(000)	Width	Dia.	Drafthood		Conn.	Conn.	Top	Top	hood
R207A	199.5	20”	6”	55-5/8”	11-3/4”	3/4”	2”	174	193	12
R267A	266.0	23”	7”	56”	11”	3/4”	2”	197	216	15
R337A	332.5	26”	8”	57”	10-5/8”	3/4”	2”	219	238	17
R407A	399.0	29”	9”	58-1/2”	12-1/8”	3/4”	2”	237	256	20

Designation for a Digital heater using natural gas is “EN”.

Prefix “C” is for cast iron (ASME) headers; “P” is for plastic (polymer) headers. Suffix “X” is for cupro-nickel tubing; “C” is for copper tubing.

EXAMPLE: P-R407A-EN-X= Plastic headers, 407 model size, digital, natural gas, cupro-nickel. For altitudes above 5,000 ft., consult the factory.

For Canada, no de-rating is required for elevations up to 4500 ft. Plastic (polymer) headers cannot be used for ASME installations.

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