Technical data
COMMISSIONING 
36 
  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. 
  Turn  the  adjusting  knob  on 
the temperature limiting valve 
counter-clockwise  (down 
away from the  water  heater), 
using a 6 mm Allen key. 
Turning  the  adjusting  knob 
counter  clockwise  (down 
away  from  the  water  heater) 
increases  the  outlet  water 
temperature,  turning  it 
clockwise  (up  towards  the 
water heater)  decreases the 
outlet water temperature. 
  Repeat the water temperature measurement from the same hot tap. 
  Further  adjust  the  temperature  limiting  valve  as  required,  turning  the 
adjusting knob either counter clockwise (down away from the water heater) 
or  clockwise  (up  towards the  water  heater)  to  increase  or decrease  the 
outlet  water  temperature,  until  an  acceptable  water  temperature  not 
exceeding 50°C is measured at the same hot tap. 
Note:  The  valve  has  a  stop  point  for  both  maximum  and  minimum  outlet 
water temperature  adjustment. The outlet  water temperature cannot be 
increased or decreased beyond these points. It is possible that, depending 
upon valve tolerances and  the pipe work  design, 50°C water  temperature 
may not be attainable at the hot tap. 
  Turn off the hot tap. 
  Replace the insulation and plastic casing to cover the temperature limiting 
valve and pipe work on the side of the water heater and secure using the 
three (3) retaining screws. 
RHEEMPLUS TEMPERATURE ADJUSTMENT










