Domestic Hot Water Heating (Dhw) - Viessmann PLC VITOCAL 350-HT PRO Service Instructions For Contractors

Operating conditions and actuator tests

Domestic hot water heating (DHW)

Launch with
■ "Menu"
■ "DHW"
Fig. 29
Set and actual values, high temperature mainte-
A
nance
DHW cylinder inlet temperature
B
DHW circulation pump
C
Set value for DHW cylinder
D
DHW cylinder temperature
E
Buttons:
■ See page 48.
■ See page 49.
■ Operating mode of the immersion heater
Black: OFF
Green: ON
"Manual"
■
Heating water buffer cylinder is heated for 5 min
(cont.)
Mixing valve, DHW
F
Cylinder loading pump
G
Mixing valve, secondary high temperature mainte-
H
nance
Secondary pump
K
Temperature, inlet, heat pump, secondary
L
Diagnosis
43