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Universal-XR 7/17 UXR01212015_REV1.4mm

Installation and Operating Instructions

DSD

Delay start of defrost: (0 to 255min) delay between reaching the defrost interval time (as defined by parameter idF) and when a defrost cycle actually starts. Used to stagger

defrosts between multiple systems.

DFP

Probe Selection for first defrost cycle

MDF

(Maximum) duration of defrost: (0 to 255min) time duration of a defrost cycle when only one probe is in use, or defrost time out override when second (evaporator) probe is in

use. Set it to zero to disable defrost cycles.

DTE

Defrost termination temperature: (-55 to 50°C or -67 to 122°F) sets the defrost termination temperature. Measured by the evaporator probe.

DSP

Probe selection for second defrost

NDS

(Maximum) length for second defrost: (0 to 255min) when P3P = 0, (not evaporator probe: timed defrost) it sets the defrost duration, when P3P = 1 (defrost end based on

temperature) it sets the maximum length for defrost. *** Only if being used with tC7***

Note: The P3 probe will be automatically set as second evaporator probe by the tC parameter.

DTS

Second termination temperature: (-55 to 50°C or -67 to 122°F) sets the temperature measured by the second evaporator probe (P3), which causes the end of defrost.

DFD

Display during defrost:

0= rt = real temperature;

1= it = temperature at defrost start;

2= sEt = set point;

3= dEF = dEF label;

4= dEG = dEG label.

DAD

Defrost display time out: (0 to 250min) after a defrost, the controller will revert to current temperature display when the temperature is back down within its normal working

range, or after the time set in this parameter, whichever is the sooner.

TDF

Defrost type:

0= El= electrical heater;

1= rE = hot gas, compressor runs during defrost.

FDT

Drain down time: (0 to 255min) drain down time. Runs concurrently with Fnd (Fan delay after defrost time).Both fan and compressor are off during this time period.

DPO

First defrost after power-on:

0= Y = immediately;

1= n = after the idF interval time.

FNC

Fan operating mode:

0= C_n = cycles on/off with the compressor, OFF during defrost;

1= O_n= continuous mode, OFF during defrost;

2= C_Y = cycles on/off with the compressor, ON during defrost;

3= O_Y = continuous mode, ON during defrost;

FST

Fan stop temperature: (-55 to 50°C or -67 to 122°F) temperature above which the evaporator fan stops (during the normal refrigeration cycle).

FND

Fan delay after defrost: (0 to 255min) the time interval between the end of a defrost cycle and evaporator fans starting. Runs concurrently with Fdt (Drain down time). Always

keep Fnd longer that Fdt.

FON

Fan ON time: (0 to 15min) used to set an On/Off cycle of the evaporator fans while the compressor is off. With FnC = 0 or FnC = 2, it sets the evaporator fan ON cycling time

when the compressor is OFF. With Fon = 0 and FoF ≠ 0, the fans are always off. With Fon = 0 and FoF = 0 the fans are always off.

FOF

Fan OFF time: (0 to 15min) used to set an On/Off cycle of the evaporator fans while the compressor is off. With FnC = 0 or FnC = 2, it sets the evaporator fan OFF cycling time

when the compressor is OFF. With Fon = 0 and FoF ≠ 0, the fans are always off. With Fon = 0 and FoF = 0 the fans are always off.

FAP

Probe selection for fans management