Viessmann Vitotwin 300-W Installation And Service Instructions For Contractors page 101

Changing codes
Function
"Flow temp setpoint
screed drying"
"Screed drying day"
"Floor curing days com-
pleted"
"Heating circuit 3 with
buffer"
The heating circuit is con-
nected to a heating water
buffer cylinder.
"Heating circuit 3 with
prim contr/system
pump"
Connecting line to the
heating circuit with/without
upstream control equip-
ment or feed pump.
"Optg mode change-
over"
"DHW"
Function
"Nominal setpoint DHW" 1610
"DHW temperature re-
duced setpoint"
"DHW release"
(cont.)
Code Operat-
ing level
1455 "F2"
1456 "F2"
1457 "F2"
1470 "F2"
1472 "F2"
1500 "F2"
Code Operat-
ing level
"E"
1612 "E"
1620 "F2"
Setting options Delivered
condition
0 to 95 °C 0
0 to 32 days 0
0 to 32 days 0
■ "No" "Yes"
■ "Yes"
■ "No" "Yes"
■ "Yes"
■ "None" "None"
■ "Frost protec-
tion mode"
■ "Reduced"
■ "Comfort"
■ "Automatic"
Setting options Delivered
condition
8 to 68 °C 60
8 to 68 °C 40
■ "24 h/day" "Time pro-
■ "Time pro- grams with
grams with ad- advance"
vance"
■ "Time pro-
gram 4"
Codes
101