Evco EV3 200 WEB User Manual

1143W24E4.00 · EV3 200 Web 03/2021
| 31 |
7.5 EVAPORATOR FANS
The evaporator fan regulator is activated in the following conditions:
• The delay F3 has elapsed at the end of dripping;
• The temperature of the evaporator probe Pb3 is higher than the threshold F1 (if F0=3,4);
• The fans are not deactivated during defrost F2 = 0;
• There is no dripping active d7.
7.5.1 Regulator operation
The evaporator fan regulator may be activated following a request from another regulator as follows:
• Compressorrequest,toencourageproductionanddiffusionofcoolair(heatregulationfunction);
• Defrostrequest,tocontrol/limitthediffusionofhotair;
• Humidication/dehumidicationrequest,tospreadorlimitthediffusionofhumidity.
7.5.2 Operating mode
The evaporator fans operate according to parameter F0:
Par. Description MU Range
F0
Evaporator fan mode in normal operating mode.
With F0 = 0 it is possible to manage cycles by setting F11,F12.
0 = In cycles;
1=AlwaysON;
2 = On with compressor ON;
3 = Thermostat controlled (F1 relative to temperature control);
4 = Thermostat controlled with compressor ON (F1 relative to temperature control).
--- 0...4
Evaporator fan cycles with F11 > 0
ON
OFF
F11
F9 F12
ON
OFF
Pb3
Setpoint + F1
Setpoint + F1+F8
Fig. 32. Operation of evaporator fans with F11 > 0
7.5.3 Operation during defrost
Operation of the evaporator fans during defrost depends on F2.
Par. Description MU Range
F2 Evaporator fan mode during defrost. 0=OFF;1 = ON; 2=AccordingtoF0. --- 0...2
7.5.4 Fan operation during dripping
Duringdripping,theevaporatorfansstayoffforthetimesetbyd7.AfurtherdelayofF3 may be set when the evaporator fans
areactivatedafterdripping.Inthiscase,thefansareactivatedafterF3 has elapsed.
Par. Description MU Range
d7 Evaporator dripping time after defrost. min 0...15
F3 Maximum time evaporator fans off after dripping. min 0...15

Evco EV3 200 WEB Specifications

General

Brand	Evco
Model	EV3 200 WEB
Category	Controller
Language	English