Electric Heating - Viessmann Vitocal 300-G Installation And Service Instructions Manual

Instantaneous heating water heater
Parameter
7900
Setting an electric booster heater
(accessory) fitted into the heating
flow. Otherwise it cannot be controlled
by the control unit.
Access
"Device settings"
"Programming"
"Electric heater"

Electric heating

Parameter
7902
Max. stage electric booster heater
Parameter
7907
This setting determines, with what
max. output (stage 1, 2 or 3) DHW and
heating water will be boosted.
Control settings, electric heater
!
Please note
If this parameter is used to
block the electric heater, then
the instantaneous heating
water heater cannot protect the
system against frost (frost pro-
tection function).
To block, use "Heating with
electro" (parameter 7902) or
"DHW with e heating" (para-
meter 6015, page 156).
Operating instructions
y to "Inst.htg.water heat"
"YES" or "NO"
Standard setting
Setting range
Heating operation with the instanta-
neous heating water heater.
Operating instructions
The available output is subject to the
way the instantaneous heating water
heater is connected.
No
Yes/No
157