andrews RFF 13/175, Installation And Service Manual, Page: 40 / 58

5. 30 Seconds after the last button press, the Water Heater
Display will go back to ‘User Mode’. It will read ‘Max
Setpoint’ without showing a temperature value if the
temperature setpoint is at the maximum setting.
The Water Heater Display can be set back to the ‘User
Mode’ immediately by pressing both the ‘Temperature Up’
and ‘Select’ buttons together for 3 seconds (Fig. 43).
Fig. 43
6.6.3 Display of water temperature
1. In Service Mode, Press the ‘Select’ button until ‘Water Temp’
is displayed in the upper right section of the water heater
display. For water heaters using two temperature sensors in
the tank, this will be the average reading between the two
sensors. For water heaters using a single sensor, this is the
reading for the sensor (Fig. 44).
Fig. 44
Fig. 45
2. For water heaters using two temperature sensors,
pressing the ‘Select’ button again displays the Upper Sensor
temperature reading. ‘Upper Sensor’ will be displayed in the
lower right side of the status window of the water heater
display (Fig. 45).
3. For water heaters using two temperature sensors, pressing
the ‘Select’ button again displays the Lower Sensor
temperature reading. ‘Lower Sensor’ will be displayed in the
lower left side of the status window of the water heater
display (Fig. 46).
Fig. 46
Setpoint
Max
idle
°F
Water
Temp
idle
°F
idle
Upper Sensor
°F
idle
Lower Sensor
40 Issue 4 21042018