Vaillant MultiMatic 700/2 - Auto off Mode; Set-Back Energy-Saving Option; Eco Energy-Saving Option

multiMATIC 700/2
Notes
10/2015 70 Training 0020228700_00
Auto Off mode
Specifies how the heating circuit reacts outside the programmed time period.
"Set-back" energy-saving option: The temperature is adjusted to the "Set-back temper-
ature" that has been set. This usually reduces the flow temperature outside the pro-
grammed time period.
Eco energy-saving option: (default setting)
The heating circuit/boiler is only
switched on with the preset set-back
target value outside the programmed
time periods if an outside temperature
of < 3 °C has been reached and the
preset frost protection delay time has
elapsed.
If the measured room temperature is
lower than the preset set-back temper-
ature, the frost protection is also acti-
vated (regardless of the measured out-
side temperature).
If you set a delay time, the frost protec-
tion function will be disabled during this
period.
Function sequence when setting the "Auto
Off mode = Eco" parameter
This function will only work if the "Eco" setting is selected for the "Auto Off mode" func-
tion.
4.5.7.8 Zone 1 / 2 / 3
Prompt/setting
Select
Comment
Zone activated
Yes, No
Day temp. heating
5.0 – 30.0 °C
Displayed only if "Zone activat-
ed" = "Yes" selected
Set-back temp. heat.
5.0 – 30.0 °C
Room temperature
Display in °C
Zone assignment
Without, VRC 700, VR 91 addr1,
VR 91 addr2, VR 91 addr3
Zone valve status
Open, Closed
*1
: Two zones with VR 70 = 1, 5 / three zones with VR 71
Eco = OFF
Pump = Off; Mixer = Closed
FT
target
= 0 °C
Frost protection delay
Pump = Off; Mixer = Closed
FT
target
= 0 °C
OT ≥ 4 °C
Eco mode
Pump = On; Mixer = Active
RT
target
= Set-back target value
OT ≤ 3 °C: Start timer
Timer finished
OT ≥ 4 °C