Vitodens 200-W B2HA/B2HB, 222-F B2TA/B2TB Operating
5461 885 - 04
8
Getting Started
The timer of the control unit switches between “normal
room temperature” and “reduced room temperature” at
the required times.
1. Normal room temperature for the times you spend
at home and require a comfortably warm room
temperature [e.g. 68ºF (20ºC)].
Note:
Times and duration of the two room
temperatures can be set on the programming
unit of your control.
The temperature settings for both the “normal
room temperature” and “reduced room
temperature” can be set according to your
personal preference.
2. Reduced room temperature for the times you are
away from home. To save energy, a lower
temperature is typically selected [e.g. 57ºF (14ºC)].
The timer of the control unit switches domestic hot water
production on and off at the required times.
1. Domestic hot water heating can be set to take
place during the times you spend at home and
require hot water for your daily DHW requirements
(e.g. for showering).
Note:
Times and duration of the domestic hot
water production period can be set on the
programming unit of your control. You may
select a DHW temperature setting based on
your personal preference of up to 140ºF (60ºC).
The domestic hot water recirculation pump
(if installed) ensures that domestic hot water is
readily available when domestic hot water is drawn.
2. Domestic hot water heating can be set not to take
place for the times you spend sleeping, for example.
General Information
Your System is Preset at the Factory
The control unit is factory-set to “Heating and DHW”.
Your heating system is therefore ready for use.
Central heating
Constant 24 h, the rooms are heated
to 68°F (20°C) “Room temp setpoint” (standard
heating
mode).
Reduced room temperature, the rooms are heated to
64°F (18°C) “Red. room temp setpoint” (reduced
room temperature, frost protection when used with
time
program).
Your heating contractor can make further settings
for you during commissioning. You can change any
settings individually at any time to suit your
requirements (see “Central heating”).
Time and date
The day and time were set by your heating contractor
during
commissioning
Power failure
All data is saved if there is a power failure.
DHW heating
Constant 24 h, the DHW tank is heated
to 122°F (50°C) “Set DHW temperature”.
Any installed DHW recirculation pump is on.
Set time program for night setback.
Frost protection
Your boiler and DHW tank are protected against
frost.
Wintertime/summertime changeover
This changeover is automatic.
