TM039 Rheem Water Star Service Instructions REV: A
Date of Issue: 02/09
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22
Element (Procedure 9)
1.
Drain the water heater
(refer to procedure 1 on page 19).
2. Remove the outer jacket screws.
3. Remove the outer jacket and front polystyrene insulation to expose the water heater.
4. Slide the thermostat out of the retaining clamp
5. Disconnect the T&PR valve drain line and outlet water pipe from the T&PR valve.
6.
Disconnect the transfer valve from the cylinder by undoing the ¾” brass nut.
7.
Remove the cylinder from the water heater and invert it
.
8. Unscrew the element using a 42mm spanner or tube socket.
9. Withdraw the element. Care must be taken to ensure the loop of the element does not
catch in the cylinder opening and open out inside the cylinder.
NOTE: Do not “cut off” the element and leave a portion inside the cylinder
10. Clean around the cylinder fitting. Ensure that the replacement element is of the correct
rating and carefully insert and screw into the cylinder
.
11. Reassemble in reverse order of above.
12. Restore the water supply.
13. Purge air from the system through hot taps and check for leaks.
14. Refit front polystyrene insulation and outer jacket.
15. Conduct an electrical insulation test (refer to page 18).
16. Restore the power supply to the water heater.
Cylinder Replacement (Procedure 10)
1.
Drain the water heater
(refer to Procedure 1 on page 19).
2. Remove the T&PR valve (follow steps 2-6 of Procedure 3 on page 19).
3. Remove the element (follow steps 2-9 of Procedure 9 on page 22).
4. Refit the element & T&PR valve to the replacement cylinder.
NOTE:
Depending on the
age of the water heater consideration should be given to fitting a new T&PR valve.
5. Fit the replacement cylinder into the rear polystyrene housing.
Note:
The cylinder will
need to be supported until the T&PR valve drain line and outlet pipe are
connected.
6. Reassemble in reverse order of above.
7. Restore the water supply.
8. Operate the T&PR valve lever to reset relief drain.
9. Purge air from the system through hot taps and check the entire water heater for leaks.
10. Refit front polystyrene insulation and outer jacket.
11. Conduct an electrical insulation test. (Refer to page 18).
12. Restore the power supply to the water heater.
