dixell XLR130, XLR170, CoolMate XLR130C, CoolMate XLR170C Installing And Operating Insructions

XLR130-170

1592017000 XLR 130-170 GB r2.0 23.03.2015 XL130 - XLR170 3/20

INDEX

1. GENERAL WARNING 4

2. GENERAL DESCRIPTION 4

3. CONTROLLING LOADS 4

4. KEYBOARD 6

5. REAL TIME CLOCK FUNCTION – ONLY FOR INSTRUMENTS WITH RTC 8

6. PARAMETER LIST 9

7. DIGITAL INPUTS 12

8. INSTALLATION AND MOUNTING 13

9. DIMENSIONS 15

10. ELECTRICAL CONNECTIONS 15

11. TTL SERIAL LINE 15

12. HOW TO USE THE HOT KEY 15

13. ALARM SIGNALS 16

14. TECHNICAL DATA 16

15. CONNECTIONS 17

16. DEFAULT SETTING VALUES 18

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1. GENERAL WARNING

1.1 PLEASE READ BEFORE USING THIS MANUAL

• This manual is part of the product and should be kept near the instrument for easy and quick reference.

• The instrument shall not be used for purposes different from those described hereunder. It cannot be used as a safety device.

• Check the application limits before proceeding.

• Dixell Srl reserves the right to change the composition of its products, even without notice, ensuring the same and unchanged functionality.

1.2

SAFETY PRECAUTIONS

• Check the supply voltage is correct before connecting the instrument.

• Do not expose to water or moisture: use the controller only within the operating limits avoiding sudden temperature changes with high

atmospheric humidity to prevent formation of condensation

• Warning: disconnect all electrical connections before any kind of maintenance.

• Fit the probe where it is not accessible by the End User. The instrument must not be opened.

• In c as e of fai lure or faulty operat i on s end the instr um ent back to the distri butor or to “Dixell S.r.l.” (see address) with a detailed description of the

fault.

• Consider the maximum current which can be applied to each relay (see Technical Data).

• Ensure that the wires for probes, loads and the power supply are separated and far enough from each other, without crossing or intertwining.

• In case of applications in industrial environments, the use of mains filters (our mod. FT1) in parallel with inductive loads could be useful.

2. GENERAL DESCRIPTION

Models XLR130 and XLR170, 210x230mm format, are micr oprocessor based contr ollers suitabl e for applications on m edium or low temperatur e
refrigerati ng uni ts . T hey ar e pr ov i ded with four (XLR130) or s i x ( X LR170) relay outputs to contr ol c om pr es s or , defr os t - which can be ei ther electrical
or hot gas (XLR170) - the evaporator fans (X LR170), the l ights, the al arm and an auxi liary output . They are also pr ovided with thr ee NTC or PTC
probe inputs, one for tem perature cont rol, one to c ontrol the defr ost end temper ature of the evaporator and the third, optional, for the dis play . There
are two digital inputs (free contact) for the door switch and configurable by parameter.
The standard TTL output allows the user to c onnect , by m eans of a TTL/RS485 exter nal modul e, a ModBUS-RTU compatible monitoring system and
to programme the parameter list with the “Hot Key”.
Each model in t he XLR100 can be provided with a Real Tim e Clock which allows programming of up to eight dail y defrost cycles , divided into
holidays and workdays. A “Day and Night” function with two different set points is fitted for energy saving.

3. CONTROLLING LOADS

3.1 THE COMPRESSOR

The regulation is performed according to the tem perature measured by the therm ostat probe with a positiv e differential from the set point: if the
temperature inc reases and reaches s et point plus differ ential the compr essor is star ted and then turned off when the temperature reaches the set
point value again.
In case of fault in the thermostat probe the start and stop of the compressor are timed through parameters “COn” and “COF”.

3.2 FAST FREEZING

When defrost is not i n progress, it c an be activated the key pad by holding the o key pressed f or about 3 seconds. The com pressor operates i n
continuous mode for the tim e set thr ough the “CCt” param eter. T he cyc le c an be term inated befor e the end of the set ti m e us i ng t he s am e ac ti v ation
key,

o

for about 3 seconds.

3.3 DEFROST

3.3.1 XLR130 – TIMED DEFROST

The defrost interval is controlled by means of parameter “EdF”:

- with EdF=in the defrost is made every “IdF” time,

- with EdF=Sd the interval “IdF” is calculate through Smart Defrost algorithm (the counter is increased only when the compressor is ON).

- with real tim e c lock present E dF c an be s et to “rt c ”, In thi s c as e, t he defr os t i s m ade in real tim e depending on the hours set in the parameters

Ld1..Ld8 on workdays and in Sd1…Sd8 in holidays;
Defrost is performed through a simple stop of the compressor. Parameter “IdF” controls the interval between defrost cy cles, while its length i s
controlled by parameter “MdF”.

3.3.2 XLR170 – HEATER OR HOT GAS DEFROST

Three defrost modes are available through the “tdF” parameter: defrost with electrical heater (tdF=rE), hot gas (tdF=in), or therm ostatic defrost
(tdF=rt).

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The defrost interval is controlled by means of parameter “EdF”:

- with EdF=in the defrost is made every “IdF” time,

- with EdF=Sd the interval “IdF” is calculate through Smart Defrost algorithm (the counter is increased only when the compressor is ON).

- with real tim e c lock present E dF c an be s et to “rt c ”. In thi s c as e, t he defr os t i s m ade in real tim e depending on the hours set in the parameters

Ld1..Ld8 on workdays and in Sd1…Sd8 in holidays;
At the end of defrost the drip time is controlled through the “Fdt” parameter.

3.4 CONTROL OF EVAPORATOR FANS (XLR170 OR XLR130 WITH OA1=FAN)
The fan control mode is selected by means of the “FnC” parameter:

C-n fans will switch ON and OFF with the compressor and not run during defrost;
C-y fans will switch ON and OFF with the compressor, also during defrost

After defrost, there is a timed fan delay allowing for drip time, set by means of the “Fnd” parameter.

O-n fans will run continuously and not run during defrost;
O-y fans will run continuously also during defrost

An additional par am eter “FS t” pr ov i des the s ett i ng of t em per atur e, detec t ed by the ev apor ator pr obe, abov e whi c h the f ans ar e al way s OF F. This can
be used to make sure circulation of air only if his temperature is lower than set in “FSt”.

3.5 AUXILIARY OUTPUT CONFIGURATION - TERM. 15-16, PAR. OA1

The functioning of the aux iliary relay (termi nals. 15-16) can be set by the oA1 paramet er, according to the kind of appl ication. In the followi ng
paragraph the possible setting:

3.5.1 XLR130: forced air application, normal temperature -oA1= Fan

Parameters involved:

- FnC Fan operating mode; - Fnd Fan delay after a defrost

- FSt Fan stop temperature; - FAP Probe for fan management
With this setting the auxiliary relay works as fan relay. See par. 3.4 “Control of evaporator fans”.
NOTE: if FAP = nP (no probe), the relay will be activated according to the setting of FnC parameter independently from the temperature of
evaporator.

3.5.2 Auxiliary relay - oA1= AUS

With oA1=AUS, two kinds of working are available.
A. The AUX relay is activated only by keyboard

Set oA1 =AUS and ArP= nP (no probe for auxiliary output).
In this case the relay 15-16 can be activated only by pushing the AUX button of the keyboard.

B. Auxiliary thermostat (I.E.. anti condensing hea te r) with the possi bil i ty of swi tc hing i t on a nd off also by keyboard
Parameters involved:

- ACH Kind of regulation for the auxiliary relay: heating /cooling;

- SAA Set point for auxiliary relay

- ArP Probe for auxiliary relay
By means of these 3 parameters the functioning of the auxiliary relay can be set.. The differential is given by the Hy parameter.
The auxiliary relay can be switched on also by the AUX button. In this case it remains on till it’s manually switched off.
The defrost doesn’t affect the status of auxiliary relay.

3.5.3 on/off relay - oA1 = onF

In this case the relay is activated when the controller is turned on and de-activated when the controller is turned off..

3.5.4 XLR170: Second defrost relay for applications with 2 evaporators – oA1 = dF2

Parameters involved:

- dtS end defrost temperature for second defrost relay;

- MdS maximum defrost duration for second defrost relay;

- dSP probe selection for second defrost
With 2 evaporators the regulation restarts when both the defrosts are finished.

3.5.5 Second compressor – oA1 = cP2

In this case the controller can manage 2 compressors or a 2 step compressor.
Functioning: the 2

nd

compressor is activ ated after the fist compr essor with a delay s et in the Ac1 parameter ( seconds). Both com pressor are
turned off at the same time.
If cco=AL compressors are switched on by turn.

Parameters involved:

- cco Compressor activation: type of sequence: by turn or in sequence;

- Ac1 Second compressor activation delay (seconds).

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4. KEYBOARD

Panic LED

To display and modify target set point; in programming mode it selects a parameter or confirms an operation.

By holding it pressed for 3s when max or min temperature is displayed, it will be erased.
Only for models with RTC: by pressing it when the c urrent ti me is displayed, it all ows the User to re-set the cur rent ti me and thr ee

holidays.

To see the max. stored temper ature; in programmi ng mode it browses the param eter codes or increas es the displayed val ue. By

holding it pressed for 3s the fast freezing cycle is started.

To see the min stored temperature; in programming mode it browses the parameter codes or decreases the displayed value.

Only for models with RTC: by holding it pres s ed f or 3s the cur rent ti m e is display ed and it permits the Us er to ent er E ner gy s av

ing,

Defrost and Clock parameter menu.

By holding it pressed for 3s the defrost is started.

Only for models with RTC by pressing it when the current time is displayed, it allows the User to set defrost times.

Switch ON and OFF the cold room light.

To start and stop Energy Saving function.

Only for models with RTC: by holding it pressed for 6s, the holiday function is started or stopped.

By pressing it when the current time is displayed, it allows the User to set Energy Saving times.

If oA1 = AUS, it switches ON and OFF the auxiliary output.

To switch ON and OFF the instrument.

KEY COMBINATIONS

+

To lock and unlock the keyboard.

+

To enter the programming mode.

+

To exit the programming mode.