Operating instructions

System settings (Service menu – Settings)
Logamatic EMS RC35 programming unit - Subject to technical modifications
24
6
6.1.1 Building type (adjusting the outside temperature)
A building's heat storage capacity and its characteristic resistance to heat transfer will delay the
effect of outside temperature fluctuations on the rooms inside. Consequently, it is not the current
outside temperature that is crucial but the so-called adjusted outside temperature.
Parameter building type enables the adjustment to be applied that takes account of the fluctuating
outside temperatures. This enables the control to be matched to the characteristics of the building.
The control unit calculates the time constant for adjusting the outside temperature, using the factor
given in Tab. 10 for the stated building type and an internal multiplier, the “runtime” (= 6 minutes).
The time constant is the product of: factor x runtime = adjustment time constant in hours.
Should the outside temp. damping
be switched off?
yes, no no When selecting “yes” the following
parameter building type will be
hidden.
What type of building do you
have?
light,
medium,
heavy
medium Building type (heat storage
capacity), Æ Chapter 6.1.1,
page 24.
What is the lowest expected
outside temp. in your region?
– 30 °C to
0°C
– 10 °C Æ Chapter 6.1.2, page 25
1) Not possible or available on boilers with UBA1.x or DBA.
2) Not possible on boilers with UBA4.
3) Only possible on boilers with UBA4.
Parameter:
building type
Type of construction Factor
light E.g. prefabricated building, wood-frame construction 10
medium E.g. a building constructed of hollow breeze blocks (factory
setting)
30
heavy E.g. brick house 50
Tab. 10 Calculating the adjustment time constant
Menu item
Input
range
Factory
setting Other information
Tab. 9 Navigator for service menu SETTINGS\SYSTEM