High Temperature Maintenance - Viessmann PLC VITOCAL 350-HT PRO Service Instructions For Contractors

Diagnosis
Operating conditions and actuator tests

High temperature maintenance

Launch with
■ "Menu"
■ "T maint."
Fig. 26
Secondary pump
3-way mixing valve, secondary high temperature
maintenance with degree of opening
Set and actual values, high temperature mainte-
A
nance
Temperature, inlet, heat pump, secondary
B
Buttons:
■ See page 48.
■ See page 49.
40
(cont.)