Bradford-White Corp 500-1825 Manual De Usuario

Internet Version for Reference Only

Page 2

B4 Volume Water Heater

Page 3

This manual provides information for the 

installation and operation of Bradford White volume 

water heaters. It is strongly recommended that all 

application and installation procedures be reviewed 

completely before proceeding with the installation. 

Consult the Bradford White factory, or local factory 

representative, with any problems or questions 

regarding this equipment. Experience has shown that 

most problems are caused by improper installation.

Some accessory items are shipped in separate 

packages. Verify receipt of all packages listed on the 

package slip. Inspect everything for possible damage 

upon delivery, and inform the carrier of any shortages 

or impairments. Any such claims should be filed with 

the carrier. The carrier, not the shipper, is responsible 

for shortages and damage to the shipment whether 

visible or concealed. 

All volume water heaters must be installed in 

accordance with the procedures outlined in 

this manual. The warranty does not apply to 

heaters not installed or operated in accordance 

with these procedures. Consult local building 

and safety codes before proceeding with 

work. The installation must conform to the 

requirements of the authority having jurisdiction 

or, in the absence of such requirements, to 

the latest edition of the National Fuel Gas 

Code; ANSI Z223.1, National Electrical Code 

ANSI/NFPA 70 and/or in Canada CSA B149.1 

requirement.

When required by the authority having 

jurisdiction, the installation must conform to 

the Standard for Controls and Safety Devices 

for Automatically Fired Boilers, ANSI/ASME      

CSD-1. Any modification to the water heater, 

its gas controls, gas orifices, wiring or 

draft diverter may void the warranty. If field 

conditions require such modifications, consult 

factory.

Consult rating plate on the heater. The following 

example simplifies the heater identification.

            1            2          3         4        5          6
           B4        1670       I         N       09        C

1.      Basic heater model.
2.      Input rate X 1000 BTU/hr.
3.      Indoor (I) or Outdoor (E) installation.
4.      Gas type: Natural (N) or Propane (P).
5.      Ignition system: I.I.D. (09) or continuous pilot 

(16).

6.      Firing rate: On/Off (C), 2-stage (K), 4-stage (L).

Bradford White commercial water heaters are 

available in two models: an indoor version and an 

outdoor version. Both are available from the factory 

(see Figure 1).

For proper operation, all low volume hot water 

heaters must have continuous flow through the heat 

exchanger when firing. The system pump must be 

capable of developing sufficient pressure to overcome 

the resistance of the heater plus the entire circulating 

system at the designed flow rate.

Pump

121⁄4

(311)

Gas

Conn.

A

Front

Top

V

101⁄4

(260)

29

5

/

8

(752)

C

17

(432)

281⁄4

(718)

Side

173⁄4

(197)

Rear

Out     In

29

(737)

B

Pump

19

(483) Gas

Inlet

12

(305)

A

Front

303⁄4

(781)

61

(1549)

Out      In

14

(356)

73⁄4

(197)

413⁄4

(1060)

Side

4

(102)

58

(1473)