System Controlling
69
Not adjustable
Cascade Base
The
Cascade Base
is the calculated source temperature for the function of the
cascade. It results according to the amount of set values. The Hysteresis is added
to the Cascade Base.
Switch On Temp Actual
The Switch on sensor at a accumulator is always the TPO (AC upper sensor)
The Switch on sensor at a hydraulic seperator is the boiler sensor (switch off sensor).
The Switch on sensor maesures the
Switch On Temp Actual
.
Switch Off Temp Actual
The Switch off sensor at a accumulator is the TPO (AC upper sensor) or the TPM
(AC middle sensor)
The switch off sensor at a hydraulic seperator is the boiler sensor (= switch on
sensor).
The switch on sensor maesures the
Switch Off Temp Actual
.
Delay Time
At first starts only one boiler. Each further boilers start after the Delay Time. You see
the remaining Delay Time of each boiler.
Boiler 1– 4
The boilers are numbered from 1 – 4. The numbering system is the same as the
actual boiler numbers. If the text of that boiler is green, it symbolises a burner
demand. As well as the boiler numbering there is also sequence numbering. It can
be different to the boilers numbering because of the sequence changes. The settings
Hysteresis, Delay Time and Delay Temperature refer to the starting numbering of
the boiler.
Adjustable
Hysteresis
The setting of the
Hysteresis
refers to the boilers starting numbering. For each
starting numbers there is an individually adjustable Hysteresis.
The
Hysteresis
enables a gradual ON and turn-OFF of the boilers. See graphic.
Delay Time
The setting of the
Delay Time
refers to the starting numbers of the boilers. Apart
from the starting number 1, each starting number has a Delay Time.
At first it starts only the boiler with the starting number 1. Every other boiler starts
at the end of the Delay Time in which is checked if the boiler or the boilers can
fulfil the requirements. With the buner demand of the boiler with starting number 1,
all Delay Times starts at the same time.
Delay Temp
The setting of the
Delay Temp
refers to the starting numbers of the boiler. Apart
from the starting number 1, each starting number has a Delay Temp. If the outside
temperature is higher than the Delay Temp, there is
no
burner demand.
Cascade Base Min
If the Cascade Base (calculated from the set values) falls below this value it will
deactivate. If there is no requirement, the cascade only activates, if the frost
protection function is active (8°C).
Sequence Changes
To load the boilers equally, the starting numbers of the boilers change at the end of
the time
Sequence Changes
. The time
Sequence Changes
refers to the actual
boiler run time.
Note
With setting
0
, no Sequence Change is made! It always starts boiler No.1 at
first.
Peak Load Boiler
The
Peak Load Boiler
is actually the last boiler (the highest boiler number). It has
the highest starting number.
The
Peak Load Boiler
is exempt from the Sequence change. It is used only for
managing energy peaks and always starts at last.
E1389EN 2.0
Operating manual Pelletronic Touch
