Related Manuals for Bradford White E32-50S
Summary of Contents for Bradford White E32-50S
- Page 1 (To be performed ONLY by qualified service providers) Commercial Electric Energy Saver: E32-50S E32-80R E32-120R Save this manual for future reference Manual 239-47157-00B...
-
Page 2: Table Of Contents
E32 Medium Duty Commercial Electric Water Heaters Page Service Procedure Introduction ………………………………………………………………………. 2 - - - Tools……………………………………………………………………………… 2 - - - General Information ……………………………………………………………… 3 - - - Sequence of Operation …………………………………………………………… 5 - - - Field Conversion of kW, Voltage and Phase…………………………………….. 6 - - - Troubleshooting …………………………………………………………………. -
Page 3: General Information
GENERAL INFORMATION Commonly Used Formulas Amps = Watts (for single phase units) Example 4500W/240V = 18.75A Volts Amps = Watts (for balanced 3 phase units) Example 4500W/240V x 1.732 = 10.82A Volts x 1.732 Watts = Amps x Volts Example 18.75A x 240V = 4500W Ohms = Volts Example (240V) / 4500W = 12.8 Ohms Watts... - Page 4 GENERAL INFORMATION Full Load Amperes-(Phase 1/Phase 3) Input Kw 208V 240V 277V 380V 415V 480V 28.8/16.6 25/14.4 21.6 12.5/7.2 43.2/25 37.5/21.6 32.4 12.5 18.7/10.8 57.6/33.3 50/28.9 43.3 16.7 25/14.4 13.5 64.9/37.5 56.2/32.5 48.7 18.8 28.1/16.2 72.1/37.5 62.5/36.1 54.1 20.9 31.2/18 86.5/50 75/43.4 37.5/21.6...
-
Page 5: Sequence Of Operation
SEQUENCE OF OPERATION E32 series medium duty, field convertible commercial electric water heaters are designed to operate using single phase or three phase service connections. One size fits all Internal fusing is factory installed for all units. When field conversions are required, no fuse change is necessary. Three surface mounted thermostats operating independently are used to control a corresponding heating element. -
Page 6: Field Conversion Of Kw, Voltage And Phase
FIELD CONVERSION FOR: KW, Voltage and Phase The E32 series medium duty commercial electric water heaters are field convertible. This allows Qualified Service Providers the ability to convert wattage, voltage and phase using a factory supplied conversion kit as required per the installation. - Page 7 FIELD CONVERSION FOR: KW, Voltage and Phase Electrical Phase Conversion Electrical phase conversion will require a change from single-phase to three-phase or an opposite conversion change from three-phase to single-phase. Each of these conversions will be explained separately as follows: Three-Phase to Single-Phase 1.
- Page 8 FIELD CONVERSION FOR: KW, Voltage and Phase Rating Plate Modification The heaters rating plate will need to be modified because the conversion altered the electrical characteristics of the heater. Refer to the illustration below that displays a typical commercial electric rating plate that is to be altered. This rating plate is placed on every Commercial Electric water heater produced by Bradford White Corporation.
-
Page 9: Troubleshooting
TROUBLESHOOTING Most common cause for improper electric water heater operation can be linked to heating element failure. When troubleshooting an electric water heater with the incidence of “No Hot Water” or “Insufficient Amount of Hot Water” It is always a good idea to check the heating elements first following the procedure on page 11. Common Heating Element Failures Are: 1. - Page 10 TROUBLESHOOTING Quick Step Plan to Hot Water WARNING High voltage exposure. Use caution when 1. TURN OFF power to water heater and check all wire connections to insure they are tight and corrosion free. making voltage checks to avoid personal injury.
-
Page 11: Heating Element Testing
SERVICE PROCEDURE E32-I Heating Element Testing Testing For Open Or Burned Out Element. WARNING High voltage exposure. Be sure power is turned Step 1. TURN OFF POWER TO WATER HEATER. OFF to water heater prior to performing this procedure. Step 2. Remove thermostat/element access cover(s) from front of water heater. -
Page 12: Line Voltage Testing
SERVICE PROCEDURE E32-II Line Voltage Testing Line Voltage Testing WARNING High voltage exposure. Use caution when making voltage checks to avoid personal injury. 1. Turn “OFF” power to water heater. 2. Open control box located at the top of the heater to allow access to terminal block. 3. -
Page 13: Fuse And Eco Testing
SERVICE PROCEDURE E32-III Fuse Testing Fuse Testing WARNING High voltage exposure. Be sure power is turned OFF to water heater prior to performing this 1. Turn “OFF” power to water heater. procedure. 2. Open control box located at the top of the heater to allow access to fuse block. -
Page 14: Thermostat Operation Testing
SERVICE PROCEDURE E32-IV Thermostat Testing Thermostat Operation Testing WARNING High voltage exposure. Use caution to avoid personal injury during this procedure. Water In Tank Is Cold With Power ON. 1. This procedure assumes line voltage, ECO and elements are in working order. 2. -
Page 15: Thermostat Removal And Replacement
SERVICE PROCEDURE E32-V Thermostat Removal and Replacement Thermostat Removal WARNING High voltage exposure. Be sure power is 1. Turn power “OFF” To water heater. “OFF” when performing this procedure. 2. Remove access cover(s) and insulation. 3. Remove plastic thermostat protector from thermostat(s). 4. -
Page 16: Heating Element Removal And Replacement
SERVICE PROCEDURE E32-VI Heating Element Removal and Replacement WARNING Heating Element Removal High voltage exposure. Be sure power is “OFF” when performing this procedure. 1. Turn power “OFF” To water heater. 2. Turn off cold water supply to heater. Connect hose to drain spigot of water heater and route to an open drain. -
Page 17: Dip Tube And Anode Inspection And Replacement
SERVICE PROCEDURE E32-VII Dip Tube and Anode Inspection and Replacement Dip Tube Inspection and Replacement WARNING Heater components and stored water may be HOT when performing the following steps in this procedure. Take necessary precaution to prevent personal injury. Step 1. Turn power “OFF”... -
Page 18: Generic Parts List
Generic Parts List 1. Hot Water Outlet Anode 8. Terminal Block 2. T&P Relief Valve 9. Brass Drain Valve 3. Cold Water Inlet Dip Tube 10. Thermostat Mounting Bracket 4. Control Box 11. Element Gasket 5. Ground Lug 12. Heating Element 6. - Page 20 Email parts@bradfordwhite.com techserv@bradfordwhite.com www.bradfordwhite.com...