EvoControl Ventilation - MPO1 Display
Models: A30T, A50CS, A60T, A70T
7.1.4 Features
400 ECO mode
Function activation. The heat recovery rotor (VVX) setpoint is equal to the set temperature setpoint in the current operating mode, and the residual heat is assigned a new temperature setpoint in accordance with parameter 401.
The temperature setpoint for the post-heating can never be higher than the temperature setpoint for heat recovery. The function is then activated in Menu 1 (Operation).
401 Setpoint ECO
Fixed setpoint for reheat.
420 Fire function
The function is activated when the end between terminals 9 and 10 is broken.
Selectable in four modes:
- Supply air fan stops, extract air fan stops. Damper closes. Heating* and cooling outputs off.
- Supply air fan stops, extract air fan 100 per cent. Dampers open. Heating* and cooling outputs off.
- Supply air fan 100 per cent, extract air fan stop. Damper opens. Heating* and cooling outputs off.
- Supply air fan 100 per cent, extract air fan 100 per cent. Dampers open. Heating* and cooling outputs off.
*Heat output 100 per cent with water coil.
435 Refrigeration recovery
Activation of the function.
436 Refrigeration recovery difftemp
The rotary heat exchanger starts when the extract air temperature is lower than the outdoor air temperature - set value in the parameter and cooling signal exceeds 10 per cent.
440 Free cooling via outside air
Enabling the function. This function means that when the conditions for parameters 441 and 442 are met, the supply air is assigned a new setpoint equal to the minimum limit specified in parameter 262.
441 Free cooling at outdoor air temperature
Free cooling allowed at outdoor temperature higher than set value.
442 Free cooling at exhaust air temperature
Free cooling start temperature when the extract air temperature exceeds the set value.
450 Defrosting
Function activation. During the defrost period (parameter 452), the unit defrosts at regular intervals (parameter 453) if the outdoor air temperature is lower than the set value (parameter 451).
The function means that the supply air fan runs in 20% and the heat exchanger (rotor) runs on 78% control signal and that the exhaust air fan runs in at least 50% and any preheating is on.
451 Defrosting start at Utetemp
Defrosting Start at outside temperature.
452 Defrosting time
Defrosting time in minutes.
453 Defrosting interval
Defrosting interval in minutes.
454 VVX Control
Activation of the function. The function means that if the heat exchanger (rotor) stops, 3 attempts are made to start it again before the alarm goes off.
At plus degrees, the control signal to the heat exchanger and the supply air fan becomes 0 for 2 minutes, the extract air fan continues after the set value.
Then the heat exchanger is tested for 1 minute, if the heat exchanger starts signalling again, the unit returns to normal operation.
If it is below freezing outside, it is assumed that the heat exchanger has frozen. Then the control signal to the heat exchanger and the supply air fan will be 0 for 10 minutes, the extract air fan runs with at least 50%. Then the heat exchanger is tested for 1 minute, if the heat exchanger starts signalling again, a 30-minute defrost is performed before the unit returns to normal operation.
455 Winterisation
Activation of the function.
Winter operation means that at a certain outdoor temperature, the capacity of the fans is adjusted and the moisture recovery of the rotor is reduced.
When the outdoor air temperature is lower than the set start temperature, fan adjustment starts and has full adjustment at 10°C lower temperature than the start temperature.
Moisture reduction rotor means that the rotor recovers less moisture and problems with condensation on windows and other cold surfaces are reduced, however the efficiency is slightly reduced.
456 Winter operation Start temperature
Winter operation starts at outdoor temperatures lower than the set value.
457 Winter operation Fan Supply air
Max fan adjustment supply air.
458 Winter operation Fan Exhaust air
Max fan adjustment exhaust air.
459 Winter operation Moisture reduction Rotor
Adjusts the rotor's moisture recovery. When reducing moisture, the recommended value is 60%.
465 Presence, switch-off delay
Activation of the function.
When the presence detector (accessory) detects presence on the relevant external input, the unit changes to that operating mode. Returns time set operating mode after set time. Can be overridden with panel and other external inputs to a higher operating mode.
466 Attendance, Operating mode
- Minimum operating mode when presence is detected.
467 Attendance, Operating Mode Return
- Return to operating mode after presence not recorded.
470-472 Prioritisation
Operating mode:
- Fire function, terminals 9 & 10 open.
- Stop, terminal 7 & 8 open.
- Forced, terminals 1 & 4 closed.
- Comfort, terminal 1 & 3 closed.
- Spar, terminal 1 & 2 closed.
- Display.
If the priority order, parameter 470-472, is set to “Priority”, the order as above applies if more inputs are active.
If the priority order, parameters 470-472, is set to “Last input”, the last command is valid until the next command.
If parameter 470 is “Prio”, parameters 471-472 are automatically set to “Prio” as well and become hidden in the control panel.
- A70T with cooker hood 251, “Last input” should be selected.
- A70T with cooker hood 392 “Prio” should be selected.
- A70T with Monolit cooker hood “Prio” should be selected.
475 Engine type
- Induction motor.
- Stepper motor.
- stepper motor RS Nema17.
- stepper motor RS Nema24.
476 Stepper motor RS Max speed
The maximum speed of the engine.
480 Standby / Emergency
Back-up operation:
- Supply air fan = Off.
- Exhaust air fan = On (capacity according to factory settings in each operating mode in %).
- Rotor = On.
- Internal electric battery = Off.
- For water coil = Normal regulation.
482 Exercise driving
Exercise run of rotor. Rotor runs 1 minute at 12:00 and 24:00 if the rotor has been stationary for more than 3 hours.