ECKELMANN UA 300 D - Page 25

Function of UA 300 D
19
E 2007 − ECKELMANN | BERLINER STRASSE 161 | 65205 WIESBADEN | FON +49(0)611 7103-0 | FAX 49(0)611 7103-133 | eckelmann.de
Version 2.03 27. Juni 2008
S NT coldrooms (normal−temperature coldrooms, UR 141 Zone 2 only)
The fan normally continues running during cooling and defrosting. When the parameter "Overrun Time" is set
greater than 0 and "Fan Overrun" is set other than −−", the fan starts simultaneously with cooling and stops with
a delay when cooling is stopped. Stop delay is contingent on two conditions, both of which must be fulfilled:
- The set overrun time must have expired.
- Temperature on the evaporator sensor must be at or above the "Fan Overrun" setpoint.
Verdampfer 2
Evaporator 2
Verdampfer 1
Evaporator 1
Valve 1
Return
air
R1.1
Return
air
Valve 2
R1.3
Supply
air
Supply
air
Fan 1
Fan 2
UA 300 D
ZNR. 51203 72 730 E0
Refrigeration point
controller
R1.1: Defrost sensor (Terminal Z31/Z32)
R1.3: Defrost sensor (Terminal Z81/Z82)
Valve 1: Solenoid Valve 1 relay (Terminal 25/26/28)
Valve 2: Solenoid Valve 2 relay (Terminal 35/36/38)
Fan 1: Fan control relay (Terminal 63/64)
Fan 2: Fan control relay (Terminal 73/74)