Diverter Valve - Viessmann Vitotronic SPS Service Instructions Manual

Diagnosis
Operating conditions and actuator tests

Diverter valve

Fig. 34
The switch position of the diverter valve can be
changed by hand if the "Op. mode" is switched to
"Mnual".
The switch position can then be changed to "HR"
(heat recovery) and "CW" (coolant) with "Valve posi-
tion in manual".
58
(cont.)
In automatic mode, the switch position is determined
by the heat pump.