Bradford-White Corp Solar Water Heater manuale d’uso

238-47073-00B REV 2/08 S OLAR W ATER H EATER WITH E LECTRIC B ACKUP A Spanish language version of these instruct ions is available by contacting the manufacturer listed on the rating plate. La version espanola de estas instruccions se puede obtener al escr ibirle a la fábrica cuyo nombre aparece in la placa de especificaciones. INSTALLATION/OPERAT[...]

2 CONGRATULATIONS! You have just purchased one of the finest water heaters on the market today! This installation, operation, and instruction manual will explain in detail the installation and maintenance of your new Solar Water Heater. We strongly recommend that you contact a plumbing professional for the installation of this water heater. We requ[...]

3 SECTION I IMPORTANT INFORMATION -READ CAREFULLY- The equipment must be installed in accordance with those installation regulations required in the area where the installation is to be made. These regulations must be carefully followed in all cases. Authorities having jurisdiction shall be consulted before installations are made. All wiring on wat[...]

4 Important Information continued- DANGER DO NOT store or use gasoline or other flammable, com bustible, or corrosive vapors and/or liquids in the vicinity of this or any other appliance. IF YOU SMELL GAS:  DO NOT try to light any appliance.  DO NOT touch any electric switch; do not use any telephone in your building.  Immediately call you[...]

5 Important Information continued- WARNING It is the responsibility of the installing contractor to see that all controls are correctly installed and are operating properly when the installation is complete. DO NOT operate the water heater with jumpered or absent controls or safety devices. DO NOT tamper with or alter the water heater and/or contro[...]

6 SECTION II SPECIFICATIONS LOWER CO VE R: SO LAR T HER M I S TOR W IR ES, LOWE R HEATIN G EL EMENT UNDER COVE R DRAIN COUPL ING-3/4" NPT DRAIN VAL VE- 5/8" NH TO SO LAR C O LLEC TO R -1 " NP T F ROM SOLA R COLL ECTOR-1" NPT TEM PER ATU R E AN D PRES SUR E R E LIEF V ALVE ANO DE S COLD WATE R INLET -3/4" NPT H OT WATE R OUT[...]

7 Specifications continued- Table 2: Water Heater Capacities MODEL Tank Capacity (Gal) Coil Volume (Gal) Coil Heat Transfer Area (Sq Ft) Approximat e Dry Weight (Lbs) Approximate Wet Weight (Lbs) 60-Gal. 60 2.5 14.2 210 695 75-Gal. 75 2.5 14.2 236 832 115-Gal. 115 2.5 14.2 340 1248 Table 3: Electric Backup Water Heater Ratings MODEL First Hour Supp[...]

8 SECTION III GENERAL INFORMATION FEATURES This water heater contains the following features: HEAT EXCHANGER – The heat exchanger (coil) is made of porcelain coated single-wall carbon steel tubing and has 1” NPT female fittings. If a confirmed leak occurs , contact the plumbing professional who installed the water heater or the manufacturer, li[...]

9 General Information continued- SACRIFICIAL ANODES — Two sacrificial anode rods have been insta lled in the tank head to extend tank life. The anode rods should be inspected annually to determine the amount of sacrificial decay and replaced when necessary to prolong tank life. The permanent removal of these anodes, for any reason, will nullify t[...]

10 SECTION IV PRE-INSTALLATION UNPACKING INSPECT SHIPMENT carefully for any signs of damage. If damage is noted, do not install the product. Contact the shipper or manufacturer listed on the rating plate. All equipm ent is carefully manufactured, inspected, and packed. Our responsibility ceases upon delivery of the pack aged water heater to the car[...]

11 Pre-installation continued- SOLAR WATER HEATING WITH ELECTRIC BACKUP FUNDAMENTALS The solar heating system puts the most am ount of heat into the storage tank when the bottom of the tank is cool. That is where the internal heat exchanger is located. This allows the collector temperature to be lower and still transfer heat into the storage tank. [...]

12 SECTION V WATER CONNECTIONS INSTALL TEMPERATURE AND PRESSURE RELIEF VALVE (if not factory installed) INSTRUCTIONS FOR POTABLE CONNECTIONS 1. BEFORE PROCEEDING WITH THE INSTALLATI ON, CLOSE THE MAIN WATER SUPPLY VALVE. After shutting off the main water supply, open a faucet to relieve the water line pressure to prevent any water from leaking out [...]

13 Water Connections continued- INSTRUCTIONS FOR SOLAR CONNECTIONS The solar water heater connection labeled “TO SOLAR CO LLECTOR” should be piped to the solar return piping. The use of a union and a shut-off valve is recommended. Pi pe and fittings between the solar system and the water heater should be ¾” diameter or larger. ONE-TANK SYSTE[...]

14 Water Connections continued- 2. For a drainback solar heating system, refer to Figur e 4. The solar water heater connection labeled “FROM SOLAR COLLECTOR” should be piped to the solar collector supply piping. Mount the circulator making sure the flow arrow points toward the water heater. Th e use of shut-off valves and unions are recommended[...]

15 Water Connections continued- TWO-TANK SYSTEM INSTALLATION THE TYPICAL TWO-TANK SYSTEM A typical two-tank system is provided in Figure 5. This system holds two separate volumes of water. The cold water supply is delivered to the solar water heater. If solar ener gy is available, the water in the solar heater is heated. This heated water is delive[...]

16 Water Connections continued- Figure 6 – Replacing the Solar Water Heater in a Two-tank Installation To replace the previous solar water heater with the new sola r water heater with electric backup, remove the previous solar water heater. The external heat exchanger and pump can also be rem oved. The new solar water heater with electric backup [...]

17 Water Connections continued- Figure 7 – Replacing the Backup Water Heater in a Two-tank Installation To replace the previous backup water heater with the new solar water heater with electric backup, remove the backup water heater. The new solar water heater with electric b ackup has an internal heat exchanger allowing direct heat transfer to t[...]

18 SECTION VI ELECTRICAL CONNECTIONS Install electric wiring in accordance with the National El ectric, ANSI/NFPA 70, and /or the CSA C22.1 Electric Code, latest editions. CONNECT ELECTRIC HEATING ELEMENT BACKUP Before any electrical connections are made, be sure that the wa ter heater is full of water and that the valve in the cold water supply li[...]

19 Electrical Connections continued- Refer to Figure 8 for connecting the thermistor and pressi ng it against the tank. This figure illustrates the opening under the upper control cover. While the lower control loca tion does not hold a thermostat, the process is the same. 1. Positively assure all electrical connections are unpowered whenever remov[...]

20 SECTION VII OPERATING INSTRUCTIONS SYSTEM START-UP Follow solar collector installation instructions to place collect or in operation. Ensure that solar fluid flow operation is established for the installed system. SEQUENCE OF HEATING OPERATIONS -SOLAR AND ELECTRIC BACKUP 1. The solar controller senses a large enough temperature difference betwee[...]

21 Operating Instructions continued- The minimum potable water tem perature can be changed by adjusting the thermostat. Before any work is done on the water heater, disconnect all power to the water heater a nd heat source (solar collector) by opening the switch(s) at the main electrical circuit breaker or fuse box. Remove the cover and fold the in[...]

22 SECTION VIII MAINTENANCE This solar water heater is intended to provide a service life of many years. Components that require service, however, may be subject to failure. Failure to use the correct procedures or parts in these circumstances may make the water heater unsafe. The owner should arrange to have the following inspecti ons and simple m[...]

23 Maintenance continued- 4. Sediment (Annual, but harsh water qu ality may dictate more frequent service) - Depending on water conditions, a varying amount of sediment may collect in the tank. Levels requiring service are indicated by a small temperature difference in the supply and return lin es (See also “Scale” below). Repeated flushing usu[...]

24 SECTION IX TROUBLESHOOTING GUIDE PROBLEM CAUSE SOLUTION ECO on thermostat tripped Determine if ECO trip is a result of excessive solar heat or electric element. Correct or replace as necessary. Depress red “RESET” button on thermostat Improper thermostat setting or calibration Adjust tank thermostat to appropriate setting See Section VII Che[...]

25 SECTION X PARTS LIST PART NAME & DESCRIPTION 1. Hole Closure 11. Element Gasket 2. Hex Head Anode 12. Thermostat with ECO (89T33) 3. Integrated Mixing Device 13. Thermostat Mounting Bracket 4. Hot Water Outlet/Anode 14. Heating Element 5. Cold Water Inlet Diptube 15. Thermostat Protector (Large) 6. Electrical Outlet Cover 16. Access Cover 7.[...]

26 Contact your supplier or plumbing professional for replacemen t parts or contact the company at the address given on the rating plate of the water heater. Provide the part name, model, and serial num bers of the water heater when ordering parts. READ THE WARRANTY FOR A FULL EXPLANATION OF THE LENGTH OF TIME THAT PARTS AND THE WATER HEATER ARE WA[...]

27 SECTION XI --NOTES—[...]

28 SECTION XI --NOTES—[...]