Operating Modes; Door That Is Opened And Closed; Doors That Are Always Or Often Left Open For Longer Periods - Frico SIReAC Original Instructions Manual

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Operating modes

Door that is opened and closed

The control function notes whether the door
is open or closed as standard, this mode is
default set and is called Fixed flexible (the
setting is under Installer menu > Settings fan
> Door mode).
Open door
Indicates ÖP on the installer status screen.
The fan speed runs at high speed which is set
under Main menu > Fan speed > Max fan
speed.
Normally it is requested that heat is engaged
when the door is opened. The setpoint value
(Room temp. day) is then increased with
the fixed setpoint value difference that can
be changed under Installer menu> Settings
heating > Open door setp. diff., factory
setting 3.0 K. The set point is set under Main
Menu > Temperature settings > Room temp.
day. If week program is used the night time
set point value is set under Main menu >
Temp. settings > Room temperature night.
The room temperature is measured using the
integrated room temperature sensor or the
external room temperature sensor, SIReRTX
(option).
Closed door
Indicated ST on the installer status screen.
The fan speed runs at low speed which is
set under Main menu > Fan speed > Speed
closed door.
Heating is regulated to Room temp. Day
which is set under Main Menu > Temperature
settings > Room temp. day. If week program
is used the night time set point value is
regulated against the Room temperature is set
under Main menu > Temp. settings > Room
temperature night. The room temperature
is regulated using the integrated room
temperature sensor or the external room
temperature sensor, SIReRTX (option).
When the door is closed - over run
When heat has been connected and the door
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has been closed, high speed mode remains to
cool the unit from any excess heat during the
fixed time that is set under Installer menu >
Settings fan > Door over run > High speed
over run and at low speed during a fixed
time under Installer menu > Settings fan>
Door over run > Low speed over run , on
the condition that it is sufficiently warm in
the premises, otherwise the fans run until the
desired temperature has been reached.
When the door is closed, the set point value
shifts from room temperature + fixed set point
value difference for open door to Room temp.
day/night.
Over run is factory set so that the over
run times are controlled according to how
often the door is opened (Auto mode under
Installer menu > Settings fan > Over run
door > Over run mode).
Doors that are always or often left open for
longer periods
If a door is always, or often, left open it is
possible to use a function called CURRENT
STAGE instead. The fan and heating steps
increase/decrease 6 or 9 steps (depending on
the type of unit) and are only controlled by
the room temperature.
Current stage is activated in two ways:
Doors that are always open
For a door that is always open, door mode
Locked open can be selected under Settings
fan> Door mode.
Doors that are often open for longer
periods
For a door that is often open Auto can be
selected under Installer menu > Settings
fan > Door mode. In Auto mode, the control
automatically switches between Flexible and
open modes depending on how often the door
has been open (when the door has been open
for longer than 300 seconds the function
changes from Flexible to Open).