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

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 OP on the installer status screen.
Fan control runs at high speed mode and is
controlled to outdoor temperature. During
dropping outdoor temperatures during the winter
and increasing outdoor temperatures during
summer the fan speed increases. High speed limit
is set under Main Menu > Fan control > High
speed limit.
The control curves to the outdoor temperature
are set under Installer menu > Settings fan > Fan
speed increase where temperatures for min- and
max speed are set for summer and winter modes.
Normally it is requested that heat is engaged
when the door is opened. The set point value
(Room temp. day) is then increased with the fixed
set point 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 regulated using
the integrated room temperature sensor or the
external room temperature sensor, SIReRTX
(option).
Closed door
Indicated CL on the installer status screen.
When heating demand 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
SIRe Advanced Air Curtains Electric
sensor or the external room temperature sensor,
SIReRTX (option).
When the door is closed - over run
When the door has been closed, high speed mode
remains 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 > Door over run > 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. Actual
Current stage is shown in the status screen.
The function current stage is activated in two
ways:
Door that are always open
For a door that is always open, door mode Fixed
open > can be selected under >Settings fan> Door
mode.
Doors that are often open
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 Fixed flexible and Fixed 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 Fixed Flexible
to Fixed Open).
GB
27