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Using the mode button, you can make the mode (Heat, cool, fan and auto) 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.
Electronical Controller Functions:
–
Device ON / OFF
–
Stage control of FAN1( fresh air fan) (OFF / 1 / 2 / 3 / 4 / 5 / AUTO)
–
Stage control of FAN2( exhaust fan) (OFF / 1 / 2 / 3 / 4 / 5 / AUTO)
–
Heat, cool, fan and auto mode.
Note: When electrical heater is working, FAN1 or the device is shutdown; FAN1 will work at stage 5 for 30
seconds to cool electrical heater. Electrical heater will not work when FAN1 is OFF.
Electrical heater only runs in the heat mode which runs automatically depends on the room temperature
and set point. Electrical heater will not run when fresh air fan is off.
In optionally, 0 ~ 10V (DC) output connected the air quality or CO2 sensors, If FAN1 or FAN2 AUTO speeds
is selected, the fan speeds according to the data from the sensors will automatically change the step .
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.
Device status information can be sent to the bms system via dry contact.
Optionally, there is a system which prevents plated heat 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 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.
After adjusting the above settings, to adjust timer settings press “
” till to display “MON” and “ON”, and
also “hh” flash, press “
” or “
” to adjust hour, press “
” till “mm” flashes, press “
” or “
” to
adjust minute; P
ress “
” till “mm” flashes,press “
” or “
” to adjust minute; Press “
“ till to display
“MON” and “OFF, andalso”hh” flash, press “
” or “
” to adjust hour, press “
”, “mm” flash, press “
” or “
” to adjust minute. The setting method is same for other days.
