16
SPECIFICATIONS AND DIMENSIONS
Heater
Model
BTUH
Input
(000)
(A)
Cabinet
Width
(B)
Flue
Dia.
(C)
Indoor
Drafthood
(D)
(J)
Min.
Gas
Conn.
Water
Conn.
Shipping Weights (lbs)
Standard
Heater
w/Stackless
Top
ASME
Heater
w/Stackless
Top
Indoor
Draft-
hood
R206A
199.5
20”
6”
61-5/8”
10.0”
11-3/4”
3/4”
2”
187
206
14
R266A
266.0
23”
7”
62”
11.5”
11”
3/4”
2”
210
229
16
R336A
332.5
26”
8”
63”
13.0”
10-5/8”
3/4”
2”
230
249
19
R406A
399.0
29”
9”
64-9/16”
14.5”
12-1/8”
3/4”
2”
249
268
21
ATMOSPHERIC UNITS
Designation for an AFT heater using propane gas is “EP”; an AFT heater using natural gas is “EN”.
Designation for a Millivolt heater using propane gas is “MP”; a Millivolt heater using natural gas is “MN”.
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-R406A-EN-X
= Plastic headers, 406 model size, AFT, natural gas, cupro-nickel.
Reduce input 4% for each 1000 ft above sea level when installed above 2000 ft elevation.
For Canada, no de-rating is required for elevations up to 4500 ft
Plastic (polymer) headers cannot be used for ASME installations.
*Note: For outdoor stack, use J dimension in the table above for appropriate size PLUS six (6) inches.
B
C
INDOOR
DRAFTHOOD
38"
13-1/4"
GAS
CONNECTION
J
A
26-5/8"
(28-5/8" ASME)
32-11/16"
ELECTRICAL
CONNECTION
40"
STACKLESS
OUTDOOR TOP
28"
4-3/8"
(3-3/8" ASME)
8-7/8"
(6-5/8" ASME)
D
10"
FLUE
L
C
Amp Draw
120 Volt 240 Volt
AFT
4
2
*
