Your System Is Preset At The Factory; Energy Saving Tips - Viessmann VITOLIGNO 300-C Operating Instructions Manual

Introduction

Your System is Preset at the Factory

Your boiler's control unit is set at the factory.
The heating circuits are set to the "Heating" operating

program.
The domestic hot water heating is set to the "DHW"

operating program.
Your heating system is therefore ready for operation:
Central heating
From 6:00 am to 10:00 pm (06:00 to 22:00 h) your

rooms are heated to 72°F (22°C) "Set room temp"
(standard heating mode).
From 10:00 pm to 6:00 am (22:00 to 06:00 h), your

rooms will be heated to "Set red room temp" (room
temperature for reduced heating mode, night setback).
Your heating contractor can make further settings for

you during commissioning. You can change any settings
at any time to suit your individual requirements (see
from page 18).

Energy Saving Tips

10
DHW heating
DHW is heated to 140°F (60°C) "Set DHW temperature"

every day from 12:00 am to 12:00 am (00:00 to 24:00 h).
Your heating contractor can make further settings for

you during commissioning. You can change any settings
at any time to suit your individual requirements (see
from page 28).
Frost protection
Your boiler, DHW tank and heating water buffer

tank are protected against frost. Wintertime/
summertime changeover
This changeover is automatic.

Time and date
The day and time were set by your heating contractor

during commissioning.
Power failure
All data is retained if there is a power failure.

Energy saving tips
Use the adjustment options offered by your boiler control
unit:
For central heating, select the operating program that

meets your current requirements:
– For short periods of absence (a few hours, such as
shopping trips), select "Economy mode" (see page 25).
The room temperature is reduced for as long as
economy mode is active.
– If you are going away, set the "Holiday program"
(see page 26).
The operating program for central heating is
automatically set to "Standby mode" while the holiday
program is active.
– If, for an extended period, you neither want to heat
the interior nor do you require DHW, select the
"Standby mode" operating program for the relevant
heating circuits and for DHW.
– See page 23 for the relevant heating circuits
– See page 28 for DHW heating
Never set the DHW tank temperature excessively

high (see page 28).
Contact your heating contractor for additional energy
saving functions offered by your boiler control unit.
For general recommendations on energy savings, see
page 51.
Vitoligno 300-C Operating