Corrigo E Heating manual, revision G Chapter 5 Functional description 18
5.1.7 Building inertia and boost
The building inertia is settable to one of three levels: None, Medium, High.
The set inertia dictates the influence of outdoor temperature.
With no inertia, the outdoor temperature is used directly, with medium inertia a one-hour average is
used and with high inertia a 12-hour average is used.
Boost is used to speed up the raising of the indoor temperature when switching from night set back
temperature to normal comfort temperature. This is done by temporarily displacing the supply
temperature set-point curve. The following conditions must be met:
• Average outdoor temperature lower than 17°C
• Supply set-point value higher than 25°C
• Night set-back more than 2°C (room temperature)
The displacement is calculated as follows:
Displacem.=Factor*(17 - outdoor temp)*night set-back
Where Factor is settable 0…10 where 0 gives no boost and 10 gives high boost.
The time in minutes that boost will be active is calculated as follows:
Time = 1.6*(17 - Outdoor temp)
Time is limited to maximum 60 minutes.
5.1.8 Night set-back
Lowering of the night temperature is set in room temperature degrees. The corresponding lowering
of the supply temperature is calculated by the controller by multiplying the value by 3. The Corrigo
has individual schedules for each heating system with two comfort-temperature periods per day.
5.1.9 Power limitation
Using a digital input the power to the heating systems can be temporarily restricted. When activated,
the setpoints are lowered by a settable factor (% relative to 20°C). The limitation applies to all
configured heating systems.
The limitation is calculated as below:
Limited setpoint=20+(Setpoint-20)*Factor/100
Factor 100 gives no setpoint reduction, 0 gives full reduction to 20°C.
5.2 Tap hot water
5.2.0 General
Corrigo E can be configured for one or two tap hot-water systems HW1 and HW2. These have
constant supply-temperature control.
5.2.1 Controllers
The heating system controllers are PID-controllers with settable P-band, I-time and D-time.
5.2.3 Night set-back
The Corrigo E has individual schedules for each hot water system with two normal-temperature
periods per day.
To Next Page
Loading...