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Solar Water Heater With Electric Backup
Manual 238-47297-00A
Solar Saver
Heaters
®
SERVICE
MANUAL
and Instructions for Service
Troubleshooting Guide
(To be performed ONLY by
qualified service providers)
Models Covered
by This Manual:
S-SW2-60R6DS
S-SW2-75R6DS
S-SW2-115R6DS
Save this manual for future reference
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Table of Contents
Related Manuals for Bradford White S-SW2-60R6DS
Summary of Contents for Bradford White S-SW2-60R6DS
- Page 1 Solar Water Heater With Electric Backup Solar Saver Heaters ® SERVICE MANUAL Troubleshooting Guide and Instructions for Service (To be performed ONLY by qualified service providers) Models Covered by This Manual: S-SW2-60R6DS S-SW2-75R6DS S-SW2-115R6DS Manual 238-47297-00A Save this manual for future reference...
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Page 2: Table Of Contents
This service manual is designed to aid service and maintenance professionals on the function, proper diagnosis and repair of Bradford White solar water heaters with electric backup. Required service for system components beyond the solar water heater should be directed to the system installer or directly to the system component manufacturer. System components include such items as the solar controller, solar collector and circulator. -
Page 3: General Information
GENERAL INFORMATION Commonly Used Formulas Single Phase Amps = Watts Example 4500W/240V = 18.75A Volts Watts = Amps x Volts Example 18.75A x 240V = 4500W Ohms = Volts Example (240V) / 4500W = 12.8 Ohms Watts Service Wire Configuration 240 VOLT BLACK GREEN... -
Page 4: General Information
GENERAL INFORMATION Surface Mounted Thermostats Surface mounted thermostats are mounted into a bracket which holds the thermostat against the side of the tank. Surface mounted thermostats respond to tank surface temperatures to sense a call for heat, set point temperature settings and high limit (ECO) activation. -
Page 5: Sequence Of Operation
SEQUENCE OF OPERATION Non-Simultaneous Operation Non-Simultaneous Mode: Allows only one heating element to operate at a time. For example, when the tank is cold, the upper element is energized first, heating the top of the tank. Only when the upper thermostat is satisfied, the upper element is de-energized and power is directed to the lower thermostat, energizing the lower element and heating the bottom portion of the tank until the lower thermostat is satisfied. -
Page 6: Troubleshooting
TROUBLESHOOTING NOTICE This Service Manual is for servicing the solar water heater. If other components of an installed system requires service, those questions should be directed to the installer or the specific component manufacturer. Most common cause for improper electric backup operation can be linked to heating element failure. When troubleshooting an electric backup solar water heater with the incidence of “No Hot Water”... -
Page 7: Re-I
TROUBLESHOOTING Quick Step Plan to Hot Water WARNING High voltage exposure. Use caution when making voltage checks to avoid personal injury. 1. TURN OFF power to water heater and solar controller. Check all wire connections to insure they are tight and corrosion free. -
Page 8: Line Voltage And High Limit (Eco) Testing
SERVICE PROCEDURE RE-I Line Voltage & High Limit (ECO) 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. Remove access cover(s) from front of water heater. - Page 9 SERVICE PROCEDURE RE-II Heating Element Testing Testing For Open Or Burned Out Element. WARNING High voltage exposure. Be sure power is turned OFF to water heater prior to performing this Step 1. TURN OFF POWER TO WATER HEATER. procedure. Step 2. Remove access covers from front of water heater.
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Page 10: Thermostat Testing
SERVICE PROCEDURE RE-III Thermostat Testing WARNING Double Element, Non-Simultaneous, Single Phase High voltage exposure. Use caution to avoid Operation. 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. - Page 11 SERVICE PROCEDURE RE-III Thermostat Testing WARNING Double Element, Non-Simultaneous, Single Phase High voltage exposure. Use caution to avoid Operation (continued). personal injury during this procedure. Not Enough Hot Water (continued). 7. Check voltage across terminal L4 of upper thermostat and terminal 1 of lower thermostat (see illustration 9).
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Page 12: Thermostat Removal And Replacement
SERVICE PROCEDURE RE-IV 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 and insulation. 3. Remove plastic thermostat protector from thermostat. 4. -
Page 13: Heating Element Removal And Replacement
SERVICE PROCEDURE RE-V Heating Element Removal and Replacement WARNING High voltage exposure. Be sure power is Heating Element Removal “OFF” when performing this procedure. 1. Turn power “OFF” To water heater. 2. Turn off cold water supply to heater. Connect hose to drain WARNING spigot of water heater and route to an open drain. -
Page 14: Dip Tube And Anode Inspection And Replacement
SERVICE PROCEDURE RE-VI 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 15: Generic Parts List
Generic Parts List 1. Integrated Mixing Device 10. Heating Element 2. Hex Head Anode 11. Thermostat Mounting Bracket 3. Junction Box Cover 12. Thermostat w/High Limit (89T33) 4. Cover Conduit/Ground 13. Element Gasket 5. ¾" Plug 14. T&P Relief Valve 6. - Page 16 Email parts@bradfordwhite.com techserv@bradfordwhite.com www.bradfordwhite.com...