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Bradford-White Corp U4-403S6FRN Leaflet

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NATURAL GAS
High Efficiency Ultra Low NOx Energy Saver Models 
Meet or exceed ASHRAE 90.1b (current standard) C.E.C. Listed
Recovery efficiency ranging up to 80%
Model
Number
Approx.
Shipping
Weight
lbs.
A
Floor to
Flue
Conn.
in.
B
Jacket
Dia.
in.
Capacity
Recovery at
90°F Rise*
U4-30T6FRN•
U4-40T6FRN•
U4-403S6FRN•
U4-5036FRN•
U.S.
Gal.
30
40
40
50
Imp.
Gal.
25
33
33
42
Nat.
BTU/Hr.
Input
32,000
40,000
40,000
40,000
Nat.
U.S.
GPH
34
43
43
43
Nat.
Imp.
GPH
28
36
36
36
59
1
/
8
59
3
/
8
50
59
5
/
8
57
1
/
2
57
3
/
4
48
1
/
2
58
123
137
143
160
18
20
22
22
H
Floor to
Water
Conn.
in.
22
1
/
4
24
1
/
4
26
1
/
4
26
1
/
4
K
Depth
in.
C
Vent
Size
in.
3x4
3x4
3x4
3x4
E
Floor to
Gas
Conn.
in.
13
13
13
13
D
Floor to
T&P
Conn.
in.
49
3
/
4
/ 56
3
/
8
50 / 56
5
/
8
41 / 47
1
/
4
50 / 57
Model
Number
Approx.
Shipping
Weight
kg.
A
Floor to
Flue
Conn.
mm.
B
Jacket
Dia.
mm.
Capacity
Recovery at
50°C Rise*
U4-30T6FRN•
U4-40T6FRN•
U4-403S6FRN•
U4-5036FRN•
Liters
114
151
151
189
Nat.
kW
Input
9.4
11.7
11.7
11.7
Nat.
Liters/
Hour
129
163
163
163
1502
1508
1270
1514
1460
1467
1232
1473
56
62
65
73
457
508
559
559
H
Floor to
Water
Conn.
mm.
565
615
666
666
K
Depth
mm.
C
Vent
Size
mm.
76x102
76x102
76x102
76x102
E
Floor to
Gas
Conn.
mm.
330
330
330
330
D
Floor to
T&P
Conn.
mm.
1264/1432
1270/1438
1041/1200
1270/1448
Residential Atmospheric Vent Gas Water Heater
Meets NAECA Requirements
General
All gas water heaters are certified at 300 PSI test pressure (2068 kPa) and 150 PSI working pressure (1034 kPa). All water connections are 3⁄4" NPT (19mm)
on 8" (203mm) centers. All gas connections are 1⁄2" (13mm).
All models design certified by CSA International (formerly AGA/CGA), to meet ANSI standard Z-21.10.1 and peak performance rated.
Dimensions and specifications subject to change without notice in accordance with our policy of continuous product improvement. 
Suitable for Water (Potable) Heating and Space Heating.
Toxic chemicals, such as those used for boiler treatment, shall NEVER be introduced into this system. This unit may NEVER be connected to any existing
heating system or component(s) previously used with a non-potable water heating appliance.
Available in Natural Gas only.
For 10 year models, change suffix from “6” to “10”.
*Based on manufacturers rated recovery efficiency.
•Models feature optional top T&P location and must be specified when ordering.
E
C
A
D
H
●
K
B
8"
A
• Optional T&P Location Dimension
“D” dimension listed as side/top.
Printed in  U.S.A.
113-B-1007-A
©2007, Bradford White Corporation. All rights reserved.
Ambler, PA
For U.S. and Canada field service, contact your professional installer or local Bradford White sales representative.
Sales 800-523-2931 
●
Fax 215-641-1670 / Technical Support 800-334-3393 
●
Fax 269-795-1089 
●
Warranty 800-531-2111 
●
Fax 269-795-1089
International: 
Telephone 215-641-9400 
●
Telefax 215-641-9750 / www.bradfordwhite.com
Sales / Technical Support 866-690-0961 / 905-238-0100 
●
Fax 905-238-0105 / www.bradfordwhite.com
All models meet SCAQMD rule 1121 requirement of 10ng/J,
or less, NOx emissions.