General Information
Table A: Basic Data
6
Component Locations
Panels omitted for clarity
Fig. 1: Component Locations – Side
Top panel, blower and gas train omitted for clarity
Fig. 4: Component Locations – Top
Fig. 3: Component Locations – Rear
Panels omitted for clarity
Fig. 2: Component Locations – Front
Model
No.
MBTUH
Input
Water
Conn.
(NPT)
Gas
Conn.
(NPT)
Vent Size
(in.)
Max. Min.
N
P
Flue
Intake
503A
500
70
2
1
1
6
6
753A
750
105
2
1
1
6
6
1003A
999
140
2-1/2
1-1/4 1
6
6
1253A
1250
175
2-1/2
1-1/4 1
8
8
1503A
1500
210
2-1/2
1-1/4 1
8
8
1753A
1750
245
2-1/2
2
1
8
8
2003A
1999
280
2-1/2
2
1
8
8
Содержание 503A
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