TM049 27L Continuous Flow Service Instructions
REV AL
– Issued April 2019
This document is stored and maintained electronically by Rheem Technical Support.
All printed copies are deemed “uncontrolled”.
15
Outlet Temperature Compensation Adjustment Procedure:
To adjust the outlet temperature:
1. Disconnect all remote temperature controllers attached to the water heater.
2. Switch on the electrical supply at the power outlet to the water heater.
3. Locate the first hot tap in the hot water pipe work after the water heater used for personal
hygiene purposes.
4. Turn on the hot tap.
5. Using a thermometer, measure the temperature of the water from the tap, until the
temperature stops increasing. If the water temperature is below 50°C the maximum outlet
temperature of the water heater can be adjusted upwards.
6. Turn off the hot tap.
7. Switch off the electrical supply at the power outlet to the water heater.
8. Remove the screws holding the front panel to the jacket.
9. Gently disengage the front panel and pull forward to remove from the water heater.
10. Switch on the electrical supply at the power outlet to the water heater.
11. Switch dip switches 1 and 2 to the on (up) position on the DIP 2 set of DIP switches on
the I.C. Board
. The temperature setting of “48” will show on the LED display, if this has
not previously been adjusted.
12. Press the MAX button once to increase the preset outlet temperature setting to the next
increment. Each press of the MAX button will increase the temperature setting by one
increment. The increments are: 48, 50, 51, & 52. The MAX button is located underneath
the DIP 1 and DIP 2 set of DIP switches.
13. Switch dip switches 1 and 2 to the off (down) position on the DIP 2 set of DIP switches
on the I.C. Board. The LED display will go blank.
14. Repeat steps 2 to 5. If the water temperature is still below 50°C and is required to be
increased, repeat steps 10 to 12, followed by steps 2 to 5 until an acceptable water
temperature not exceeding 50°C is measured at the same hot tap. If the water
temperature exceeds 50°C, then;
Switch dip switches 1 and 2 to the on (up) position on the DIP 2 set of DIP switches.
Press the MIN button once to decrease the preset outlet temperature setting to the
next increment. Each press of the MIN button will decrease the preset temperature
by one increment. (The MIN button is located underneath the DIP 1 and DIP 2 set of
DIP switches and to the left of the MAX button).
Switch dip switches 1 and 2 to the off (down) position on the DIP 2 set of DIP switches.
Repeat steps 2 to 5 to confirm the water temperature does not exceed 50°C.
15. Switch off the electrical supply at the power outlet to the water heater.
16. Refit the front panel and screws to the water heater.
17. Reconnect the controller cables (if a temperature controller is fitted).
18. Switch on the electrical supply at the power outlet to the water heater.