Raypak 408 Installation And Operation Manual page 14

C
INDOOR
DRAFTHOOD
38"
(963 mm)
13-1/4"
(336 mm)
GAS
CONNECTION
(A)
BTUH
Heater Cabinet
Input
Model Width
(000)
in. (mm)
23
R268 266.0
(584)
29
R408 399.0
(737)
Designation for a heater using propane gas is "EP"; a heater using natural gas is "EN".
Prefix "B" is for brass (ASME) headers.
Suffix "X" is for cupro-nickel tubing.
EXAMPLE: B-R408-EN-X = Brass headers, 408 model size, AFT, natural gas, cupro-nickel.
Reduce input 4% for each 1000 ft (305 m) above sea level when installed above 2000 ft (610 m) elevation.
For Canada, no de-rating is required for elevations up to 4500 ft (1,372 m)
*Note: For outdoor stack, use J dimension in the table above for appropriate size plus 6" (152 mm).
14
B
D
A
(B)
(C)
Flue
Indoor (D)
Dia.
Drafthood in. (mm)
in.
in. (mm)
(mm)
7 11.5
62 (1574)
(178) (292)
9 64-9/16 14.5
(229) (1640) (368)
Figure 10. Heater Specification and Dimensions
J*
32-11/16"
(830 mm)
ELECTRICAL
CONNECTION
28-5/8"
(725 mm)
(J)
Gas Water
Min.
Conn. Conn.
in. (mm)
11
3/4" 2"
(279)
12-1/8
3/4" 2"
(307)
Amp Draw
120 Volt 240 Volt
4
FLUE
3-3/8"
(85 mm)
28"
(709 mm)
Shipping Weights - lbs (kg)
Standard ASME
Heater Heater
w/Stackless w/Stackless
Top Top
210 229
(95) (104)
249 268
(113) (121)
2
10"
(253 mm)
6-5/8"
(167 mm)
40"
(1,016 mm)
ELECTRICAL
CONNECTION
Indoor
Draft-
hood
16
(7)
21
(9)