Entering system settings (Service menu – Settings)
6
RC35 programming unit - Technical specifications are subject to change without prior notice.
23
6.1.1 Building type ("delayed" response to change in outside temperature)
A building's heat storage capacity and its characteristic resistance to heat transfer will
delay the effect of outside temperature variation on the rooms inside. For this reason, the
decisive factor for heating requirements in the rooms is not the current outside tempera-
ture, but rather the "delayed" response to the change in outside temperature.
The building type parameter can be used to set the level of delay with which variations
in outside temperature are registered. This allows heating system control to be adapted
to the characteristic behaviour of the building.
The controller calculates the time constant for the delay in response to the outside tem-
perature, using the factor given in Table 9 for the stated building type and an internal mul-
tiplier, the "runtime" (= 6 minutes). The time constant is the product of: factor x runtime =
damping time constant in hours.
What type of building do
you have?
Light, Medium, Heavy For building type (heat storage
capacity), see page 23.
What is the lowest
expected outside temp.
in your region?
-10°C
-30°C to 0°C
See page 24.
1) Not possible or not available for boilers with UBA1.x and DBA.
Building type
parameter Type of construction Factor
Light e. g. prefabricated building, wood-frame construction 10
Medium e. g. breeze-block house (factory setting) 30
Heavy e. g. brick house 50
Table 9 Calculating the delay time constant
Menu item
Input range
Factory setting in bold
Other information
Table 8 Navigator for Service menu SETTINGS \ SYSTEM
To Next Page
Loading...
Need help?
General
