2019.10
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Description
Heater and cooler step (ST 1 - ST 1+2)
Failure reporting (AL 01 - AL02 - AL 03)
Fresh air fan step (0-1-2-3-4-5-automatic)
Exhaust fan step (0-1-2-3-4-5-automatic)
Using the mode button, you can make the mode (Heat, cool and fan) selection. If the fan button is pressed,
makes of the fresh air fan speed control (1 / 2 / 3 / 4 / 5-automatic). When the fan button is second pressed,
makes of the exhaust fan speed control (1 / 2 / 3 / 4 / 5-automatic). If fans are running automatically, (
A
) icon
appears on the screen. Fans automatically run in heating and cooling mode. Air quality and CO
2
sensors have
to be connected for automatic run of the fans.
While in fan mode,
fans don’t automatically run. If the fans automatically run in different modes, when switched
to fan mode automatic run is stop. Steps manually set with controller.
Electrical heater only runs in the heat mode which runs automatically depends on the room temperature and
set point. When the heater runs in step one
“ST 1” icon appears on the screen. When the heater runs in step
two,
“ST 1+2” icon appears on the screen. Fresh air fan will run at step 5 for 30 seconds to cool electrical
heater. Electrical heater will not run when fresh air fan is off.
Optional air cooler battery only runs in cool mode which runs automatically depends on the room temperature
and set point.
Optional damper runs in heat and cool mode which runs automatically depends on the room temperature and
set point. If fan mode is active, damper is off.
FEC electronical controller can perform device ON / OFF from the dry contact information it gets from the
building automation system or similar system (VRV, VRF controller, timer etc.). By a dry contact on the relay
card connected to the BMS input; when dry contact is ON (short circuit) the device is activated and starts to
work in the position where previous closed. In this case, by using the front panel interfering device ON /OFF
equipment position change operations can be performed. When the dry contact is off, the device closes down
and you can’t interfere to the device from the front panel.
Optionally, there is a system which prevents plated energy recovery from freezing under low temperature.
When icing is determined in the plated heat exchanger, fresh air fan will stop and exhaust fan will run at
maximum step for defrosting. After defrosting, the device will return to its normal run conditions. Under these
circumstances ‘’AL 01’’ will be shown on screen. Commands from the front panel will not run.
When the optional filter sensor detects dirty filters
, ‘’AL 03’’ warning will be shown on screen. When this warning
is shown, the device will work properly, however the warning will be shown until filters are cleaned.
When power is on,
press the button “
” for 10s till to display “hh:mm” and “hh” flash
,
press “
” or “
”
to adjust hour. Press “
”, “mm” flash, press “
” or “
” to adjust minute. Press “
”, “week” flash,
press “
” or “
” to adjust Mon to Sun.
