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Bradford White B4 manual

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Table of contents for the manual

  • Page 1

    Internet Version for Reference Only Installation, Operation and Maintenance Instructions Document 2143 H2317000- Installation, Operation and Maintenance Instructions for Copper Brute V olume W ater Heaters Model B4 Sizes 175-400 FOR YOUR SAFETY : This product must be installed and serviced by a professional service technician, qualied in hot wat[...]

  • Page 2

    Internet Version for Reference Only BRADFORD WHITE Page 2 Copper Brute B4 V olume Water Heaters Page 3 T ABLE OF CONTENTS SECTION 1. General Information 1.1 Introduction ..................................................... 3 1.2 W arranty ......................................................... 3 1.3 T echnical Assistance ........................[...]

  • Page 3

    Internet Version for Reference Only BRADFORD WHITE Page 2 Copper Brute B4 V olume Water Heaters Page 3 SECTION 1. General Information 1.1 Introduction This manual provides installation, operating, and maintenance instructions for Copper Brute V olume W ater Heaters, Sizes 175 through 400. Review all application and installation procedures completel[...]

  • Page 4

    Internet Version for Reference Only BRADFORD WHITE Page 4 Copper Brute B4 V olume Water Heaters Page 5 HO T HO T a. Remove the top ller plate, stamped “HOT”, by slipping a ne-blade screwdriver into the slot at the rear of the plate and gently prying it up (see Figure 2). b. Remove the two screws attaching the adapter plate to the top asse[...]

  • Page 5

    Internet Version for Reference Only BRADFORD WHITE Page 4 Copper Brute B4 V olume Water Heaters Page 5 e. Slide the adapter plate over the bottom of the stack extension as shown in Figure 5. Fit the stack extension down over the ue transition ring. Seat the adapter plate on the top assembly and secure it with two screws (see Figure 6). f. Indoor[...]

  • Page 6

    Internet Version for Reference Only BRADFORD WHITE Page 6 Copper Brute B4 V olume Water Heaters Page 7 WINDOW OR GRILL INDOOR ROOM WR ONG Figure 1 1. Standard base for combustible oor . Figure 13. T ypical roof mounting with standard combustible mount base. Figure 12. T ypical roof mounting. Figure 10. Outdoor location installation. Figure 9. In[...]

  • Page 7

    Internet Version for Reference Only BRADFORD WHITE Page 6 Copper Brute B4 V olume Water Heaters Page 7 directly , or by ducts, with the outdoors or spaces that freely communicate with the outdoors. When directly communicating with the outdoors directly , or through vertical ducts, each opening shall have a minimum free area of 1 square inch per 400[...]

  • Page 8

    Internet Version for Reference Only BRADFORD WHITE Page 8 Copper Brute B4 V olume Water Heaters Page 9 2.5 V enting of Combustion Products 2.5.1 General Information When installed indoors, the drafthood must be connected to a venting system. The venting system must be installed by a qualied installer and in accordance with the latest edition of [...]

  • Page 9

    Internet Version for Reference Only BRADFORD WHITE Page 8 Copper Brute B4 V olume Water Heaters Page 9 Clamp Bracket Heat Exchanger Bracket In/Out Header Clamp Flue Collector REAR TILE COVER FLOW SWITCH CONDUIT GAP CLOSURE GROMMET DRAIN V AL V E MET AL CHANNEL (FOR CAPILLAR Y TUBE) TERMINAL STRIP HEA T EXCHANGER ASSEMBL Y GAP CLOSURE DRAIN PLUG DRA[...]

  • Page 10

    Internet Version for Reference Only BRADFORD WHITE Page 10 Copper Brute B4 V olume Water Heaters Page 1 1 3.1 in. (79mm) 2.4 in. (61mm) 2.4 in. (61mm) Attach Capillary Covers on Left Side LEFT 0.9 in. dia (23mm) (T wo holes) FRONT 1.9 in. (48mm) Ret aining Clip 2-St age/ Operating Controller Header Modulating (if installed) Inlet Oulet High Limit h[...]

  • Page 11

    Internet Version for Reference Only BRADFORD WHITE Page 10 Copper Brute B4 V olume Water Heaters Page 1 1 NOTE: It is possible to have hard and soft water in the same city . Check with the local water companies. If an installer sees damage to any water handling equipment at the installation site, it should be repaired as soon as possible to help re[...]

  • Page 12

    Internet Version for Reference Only BRADFORD WHITE Page 12 Copper Brute B4 V olume Water Heaters Page 13 T o Drain Heater T 1 A B Remote T emperature Control for Heater Heat Flow Pressure* W ater T emp Exch. Water Rate Drop Rise Model Passes Category gpm L/s ft. m ° F ° C 175 2 Soft 22 1.4 5.8 1.8 13 7 Normal 34 2.1 1 1.2 3.4 8 4 Hard 46 2.9 19.1[...]

  • Page 13

    Internet Version for Reference Only BRADFORD WHITE Page 12 Copper Brute B4 V olume Water Heaters Page 13 Conventional T ank Heater T o Drain Drain 24-inch Min. Service V alves Cold W ater Hot W ater to Building Hot W ater Return from Building Check V alve Bldg. Loop Circ. Pump Hot W ater Return from Building Throttling V alve Check V alve Bldg. Loo[...]

  • Page 14

    Internet Version for Reference Only BRADFORD WHITE Page 14 Copper Brute B4 V olume Water Heaters Page 15 2.6.9 Storage T ank Installation 1. Be sure the oor is structurally capable of supporting the tank when it is lled with water , and is waterproof. 2. Place the tank so that manholes, inspection covers, nameplates and drain valves are acces[...]

  • Page 15

    Internet Version for Reference Only BRADFORD WHITE Page 14 Copper Brute B4 V olume Water Heaters Page 15 2.6.10 Thermal Circulation of Hot W ater in Cold W ater Supply Lines Under certain circumstances, thermal circulation will occur in the cold water pipe supplying the water to the heating system. This happens in a multi-story building when the co[...]

  • Page 16

    Internet Version for Reference Only BRADFORD WHITE Page 16 Copper Brute B4 V olume Water Heaters Page 17 2.9 Combined Space Heating/Potable W ater Heating Systems 2.9.1 Combined Space Heating NOTE: These systems are not allowed in the Commonwealth of Massachusetts. Piping and components connected to this water heater for the space heating applicati[...]

  • Page 17

    Internet Version for Reference Only BRADFORD WHITE Page 16 Copper Brute B4 V olume Water Heaters Page 17 Figure 26. T ypical example of wiring schematic, System 1, Sizes 175-250. IGNITION SYSTEM NO. 1 (SIZES 175-250) W 3 W 6 2 1 R O P 4 5 Y R 10 1 1 12 Y TR Y TH 8 9 6 7 4 5 2 3 BR BR BR R R R 1 15V 1 Y R 24V ON/OFF WITH EM2 R 4 6 5 3 2 G 1 W BK BK [...]

  • Page 18

    Internet Version for Reference Only BRADFORD WHITE Page 18 Copper Brute B4 V olume Water Heaters Page 19 1 15V 24V TRANSFORMER 1 2 3 4 5 6 7 8 9 10 1 1 12 R R FUSE 2 AMP FIELD INTERLOCK (REMOVE JUMPER WHEN USED) Y FLOW SWITCH STRIP TERMINAL Y BR BR 1 2 3 6 4 5 W W O P Y R VENT DAMPER JUMPER HI-LIMIT RESET MANUAL RECEPT ACLE VENT DAMPER 1 2 3 6 4 5 [...]

  • Page 19

    Internet Version for Reference Only BRADFORD WHITE Page 18 Copper Brute B4 V olume Water Heaters Page 19 2 AMP FUSE TRANSFORMER MANUAL RESET HI-LIMIT LOW W A TER CUT -OFF (OPTIONAL) POWER SWITCH HOT 1 15/60 HZ POWER SUPPL Y PUMP GROUNDING CONDUCTOR NEUTRAL TEMP CONTROL TERMINAL STRIP PUMP RELA Y FIELD INTERLOCK (REMOVE JUMPER WHEN USED) FLOW SWITCH[...]

  • Page 20

    Internet Version for Reference Only BRADFORD WHITE Page 20 Copper Brute B4 V olume Water Heaters Page 21 IGNITION SYSTEM NO. 12 (SIZES 325-400) ON/OFF WITH EM2 2 AMP FUSE TRANSFORMER LOW W A TER CUT -OFF (OPTIONAL) POWER SWITCH HOT PUMP RELA Y TERMINAL STRIP MANUAL RESET HI-LIMIT TEMP CONTROL 200°F MAX FIELD INTERLOCK (REMOVE JUMPER WHEN USED) PIL[...]

  • Page 21

    Internet Version for Reference Only BRADFORD WHITE Page 20 Copper Brute B4 V olume Water Heaters Page 21 7. Turn manual gas valve on. 8. Reset all safety devices (some units have manual resets on hi-limit switch, low water cutoff, etc.). 9. Set temperature control to desired setting. 10. Replace control access panel. 1 1. T urn electric power to th[...]

  • Page 22

    Internet Version for Reference Only BRADFORD WHITE Page 22 Copper Brute B4 V olume Water Heaters Page 23 3.5 Hi-Limit Switch Checkout After running the heater for a long enough period, bring the water temperature within the range of the hi-limit switch and slowly back off the high limit setting until the heater shuts off. The main burners should re[...]

  • Page 23

    Internet Version for Reference Only BRADFORD WHITE Page 22 Copper Brute B4 V olume Water Heaters Page 23 Electronic Pilot Standing Pilot Figure 31. Flame patterns. SECTION 4. Maintenance 4.1 General Instructions 1. Oil the water circulating pump in accordance with the manufacturer's instructions. 2. If a strainer is used in a pressure reducing[...]

  • Page 24

    Internet Version for Reference Only BRADFORD WHITE Page 24 Copper Brute B4 V olume Water Heaters Page 25 NOTE: Due to sharp edges on the metal burners, wear protective gloves for the next steps. 1 1. Hold the gas burner or pilot burner rmly , and push it away from the manifold until it is clear of the orice. Slide the burner to be replaced ou[...]

  • Page 25

    Internet Version for Reference Only BRADFORD WHITE Page 24 Copper Brute B4 V olume Water Heaters Page 25 21. Install the front access door on the heater . 22. Turn all electrical power to the heater on. 4.3 HEA T EXCHANGER 4.3.1 Inspecting the Heat Exchanger T o check the scale buildup, periodically inspect the tube having the highest temperature a[...]

  • Page 26

    Internet Version for Reference Only BRADFORD WHITE Page 26 Copper Brute B4 V olume Water Heaters Page 27 8. Pressure test the heat exchanger for leaks with city water supply before re-installing (see Figure 35). 9. When placing the heat exchanger back in the heater , carefully hold the refractory insulation blocks apart and lower the heat exchanger[...]

  • Page 27

    Internet Version for Reference Only BRADFORD WHITE Page 26 Copper Brute B4 V olume Water Heaters Page 27 The following tools are required for proper service and problem diagnosis of the heater and heating system. 1. Gas pressure test kit with range from 0 to 14 inches (0 to 356 mm) W .C. 2. Electric meter(s) with the following ranges: a. 0 to 500 v[...]

  • Page 28

    Internet Version for Reference Only BRADFORD WHITE Page 28 Copper Brute B4 V olume Water Heaters Page 29 5.2.5 T esting the Flow Switch The ow switch is a safety device that senses water ow through the heater . When the switch senses adequate water ow , it closes, allowing the heater to re. If the water ow is too low , the switch rem[...]

  • Page 29

    Internet Version for Reference Only BRADFORD WHITE Page 28 Copper Brute B4 V olume Water Heaters Page 29 2. If the voltmeter reads voltage, the safety fuse and the fusible link are good. 3. Replace the fusible link when an open circuit is detected. An open fuse line indicates overheating in the ue collector or compartment. 4. Check for leaks of [...]

  • Page 30

    Internet Version for Reference Only BRADFORD WHITE Page 30 Copper Brute B4 V olume Water Heaters Page 31 5.2.10 T esting the Safety Shutoff (for standing pilot) After lighting the heater , test the ignition system safety shutoff. 1. W ith the main burners ring, turn the gas valve control knob off. 2. Turn power to the heater of f. 3. Set the tem[...]

  • Page 31

    Internet Version for Reference Only BRADFORD WHITE Page 30 Copper Brute B4 V olume Water Heaters Page 31 Thermocouple Thermocouple Adapter Gas V alve Millivolt Meter Pilot Figure 42. T esting the pilot thermocouple. 5.2.16 Heater Will Not Shut Off 1. If the heater stays on with the brown wire on the gas valve disconnected, replace the gas valve (se[...]

  • Page 32

    Internet Version for Reference Only C O R P O R A T I O N B W R A D FO R D H ITE ® H2317000- Ambler , P A 19002 T ech. Service (800) 334-3393 Service Parts (800) 538-2020 W arranty Service (800) 531-21 1 1 ® www .Bradford White.com Litho in U.S.A. © Bradford White 0602 Document 2143[...]