Spec Sheet
NATURAL GAS
TTW
®
1 Ultra Low NOx Energy Saver Models
Meet or exceed ASHRAE 90.1b (current standard) C.E.C. Listed
80% Recovery Efficiency
Model
Number
Capacity
F
Floor
to
Top of
Heater
in.
Approx.
Shipping
Weight
lbs.
E
Floor
to
Gas
Conn.
in.
A
Floor to
Vent
Conn.
in.
D
Floor to
T&P
Conn.
in.
C
Vent
Size
in.
B
Jacket
Dia.
in.
Gal.
U.S.
Input
Nat.
BTU/Hr.
GPH
Nat.
Imp.
Recovery
90°F Rise*
40 40,000 2056
1
⁄
2
2 13940
1
⁄
2
36
U-1-TW-40S6FRN
U-1-TW-50S6FRN
U-1-TW-60T6FRN
U-1-TW-40S6FRN
U-1-TW-50S6FRN
U-1-TW-60T6FRN
50
Gal.
Imp.
33
42 40,000 22 2 16040
7
⁄
8
46
1
⁄
2
24
7
⁄
8
47
1
⁄
8
49
1
⁄
4
11
3
⁄
4
11
3
⁄
4
57
3
⁄
8
36
GPH
Nat.
U.S.
43
43
Model
Number
Capacity
Liters
F
Floor
to
Top of
Heater
mm.
Approx.
Shipping
Weight
kg.
E
Floor
to
Gas
Conn.
mm.
A
Floor to
Vent
Conn.
mm.
D
Floor to
T&P
Conn.
mm.
C
Vent
Size
mm.
B
Jacket
Dia.
mm.
Input
Nat.
kW
Hour
Nat.
Liters/
Recovery
50°C Rise*
151 11.7 163
190 11.7 163
1435
1457
508
560
51
51
1030
1038
298
298
1175
1197
G
Floor
to
Water
Conn.
in.
48
G
Floor
to
Water
Conn.
mm.
1220
1251
26
3
⁄
4
H
Depth
in.
H
Depth
mm.
632
679
75
84
60 51 42,000 22 2 19250
7
⁄
8
57
3
⁄
4
58
1
⁄
2
11
3
⁄
4
683845
227 12.3 170 1727 560 51 1292 298 1467 1486
27
1
⁄
4
692 88
Residential Power Vent Gas Water Heater
General
All gas water heaters are certified at 300 PSI (2068 kPa) test pressure and 150 PSI (1034 kPa) working pressure.
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 ), ANSI 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 manufacturer’s rated recovery efficiency.
110 V.A.C. Required for Power Venting / 110 V.A.C., 60HZ, 3.1 Amperes.
C
A
G
F
E
B
D
H
2"
Vent Pipe
3"
Vent Pipe
U-1-TW-40
U-1-TW-50
U-1-TW-60
†
50 ft.
7 ft.
45 ft.
40 ft.
35 ft.
†
120 ft.
15 ft.
115 ft.
110 ft.
105 ft.
Max. Equivalent Length
Min. Equivalent Length
Number 1
of 2
90° Elbows 3
†For high altitude installations, consult
the installation instructions.
Printed in U.S.A.
255-B-0413-A
©2013, 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 comply with the latest ultra-low NOx requirements of 10 ng/J or less.