Residual Heat - Viessmann PLC VITOCAL 350-HT PRO Service Instructions For Contractors

Operating conditions and actuator tests

Residual heat

Launch with
■ "Menu"
■ "Resid. heat"
Fig. 31
Dry cooler
A
2-way valve (dry cooler shut-off)
B
Temperature, condenser outlet
C
Temperature, condenser inlet
D
Secondary pump
E
Mixing valve, secondary high temperature mainte-
F
nance
Buttons:
■ See page 48.
■ See page 49.
(cont.)
Circulation pump, residual heat
G
Mixing valve, frost protection and return tempera-
H
ture raising
2-way valve (heat source shut-off)
K
Diagnosis
45