DFx Series 1e™ ControllerInstruction Manual

www.dfxtech.co.uk/cooler

1. Welcome…………………………………………………………………..…... 32. Series 1e™ Schematic.............................................................................33. Important Information………...………………………………………..…...... 34. Parts List…………………………………………………………..…….......... 45. Specifications…………………………………………………………..……... 56. Key Benefits…………………………………………………………..………. 57. How It Works……………………………………………………………….…. 68. Series 1e™ Controller Installation............................................................ 6 9. DFx Series 1e™ Controller Instructions……………................................. 7 9.1 Current Ice Bath Temperature...…………………………………. 7 9.2 Setting the Set-point Temperature……………………………..... 7 9.3 Setting the Hysterisis/Differential Value……………………....... 7 9.4 Diagnostics Mode……………………………….......................... 8 9.5 Setting the Time..............……………………………………........ 8 9.6 Setting the Day…………………………………………................ 8 9.7 Setting the Date (Day/Month)………………………………........ 8 9.8 Setting the Date (Year)……………………………………........... 8 9.9 Leap Year/Daylight Saving ...........................…………...…....... 9 9.10 Trading Hours Set.……………………………………................ 9 9.11 Python Refresh.............……………………….......................... 11 9.12 Setting the Out of Hours Temperature……….......................... 12 9.13 Reset…………………………………………............................. 12 9.14 Returning to the Current Temperature……….......................... 12 9.15 Clean Mode...…………………………………........................... 12 9.16 Override.................................................................................. 12

10. Warning Signals...………………………………………………………....... 13 10.1 High Temperature...…………………………………………....... 13 10.2 Temperature Probe Fault..…………………………………….... 13

11.1 Series 1e™ Screw Terminal Schematic............................................... 1311.2 Series 1e™ Temperature Probe Holder Schematic.............................. 14 12. Trading Hours Tables………………………………………....................... 15 12.1 Example Table…………………………..................................... 15 12.2 Blank Table………………………….......................................... 15

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1. Welcome!

Hello! Thank you and congratulations for purchasing your new Series 1e™ en-ergy saving cooler controller! In just a few moments you will be ready to reduce your carbon footprint and save on your energy bills. Individual savings do vary, so to maximise your energy savings please read these instructions carefully before installing the device. Don’t forget to check out our latest energy saving devices (including InnEnergy® and 2eRTTM) at www.dfxtech.co.uk.

The DFx Design Team

2. Series 1e™ Schematic

3. Important Information

WARNING: ISOLATE THE COOLER FROM ALL POWER SUPPLIES BE-FORE CARRYING OUT INSTALLATION OR SERVICING ANY OF THE COM-PONENTS. REMOVE THE PLUG FROM THE WALL.

When switching the cooler components on and off the Series 1e™ con-troller only switches the ‘live’ on and off. It does not isolate the cooler components. The cooler must be unplugged from the wall before any maintenance work is carried out.

The input voltage is limited to 230V AC or 110V AC rms. Please refer to the label on the controller unit. Do not use outside the stated range.

The maximum holding current is 13A.

The maximum inrush current is 120A.

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Increment (+)

Decrement ( - )

Select

Set (S)

DisplayLED 1

LED 2

LED 3

LED 4

The Series 1e™ controller is suitable for indoor use only.

Protect the Series 1e™ controller from adverse conditions.

Do not drop the Series 1e™ controller.

Do not expose the Series 1e™ controller to sprays, liquids or solvents.

Clean the exterior of the Series 1e™ controller by removing dust with a dry cloth.

Do not use abrasives to clean the Series 1e™ controller.

Do not use chemical cleaning agents to clean the Series 1e™ controller.

To prevent fire or shock hazard, do not expose the Series 1e™ device to rain or moisture. The Series 1e™ controller is not waterproof.

To avoid electrical shock do not open the device.

No user serviceable parts inside. The installation of this product should be performed by qualified persons only.

Once the Series 1e™ controller is installed ensure that the cooler is suc-cessfully PAT tested before being turned on.

The user should determine the applicability of this device for their equipment and product range. DFx Technology Ltd. accepts no liability for loss, damage or injury of any kind arising from the inappropriate use of this device.

The amount of energy saved is dependent upon the establishment’s trading hours and usage. Individual savings will vary.

These instructions are suitable for use with Series 1e™ controllers manufac-tured with software version 1.1. Other instructions may supercede the advice given herewithin.

4. Parts List

91-058 DFx Series 1e™ Controller660-024-01 DFx Series 1e™ Instruction Booklet530-681-01 DFx Series 1e™ Controller Holding Clip518-103 SENSOR Temp. NTC Dia 6.0 L35mm Cable 1m518-102 SENSOR Temp. NTC Dia 6.0 L100mm Cable 1m4

530-682-01 DFx Series 1e™ Temperature Probe Holder Bracket 531-302 Short Brass Probe Holder 55mm531-305 Short Brass Probe Holder 105mm

5. Specifications

ElectricalInput Voltage: 230V AC rms +/-10% or 110V AC rms +/-10% ; please refer to the ratings label on the unitCompressor Inrush Current: 120ACompressor Holding Current: 16A (resistive)Top Pump Current 3A holding (60A Surge)Connections: Live, Neutral, Compressor Switched Live, Top Pump

MechanicalDimensions (Controller): H34 x W76 x D65 (mm)Cut Out: W71 x H29 (mm) Internal Depth 66 (mm)

EnvironmentalFront panel with clear cover IP65Operating Temperature: 0o to 50o CStorage Temperature: -40o to 70o CRelative Humidity: 0% to 90% non-condensing

MaterialAll Parts: Flame retardant ABS V0 ratedGasket: Neoprene

Design & ManufactureDesigned & Manufactured to ISO9001:2000CE CompliantRoHS CompliantMTBF 5 years

6. Key BenefitsSuitable for water and glycol based coolersHi-intensity LED multifunction displayHigh load current surgeInput surge protection Built in diagnostics: max/min ice bath temp, and max/min compressor frequen-cy (cycles per hour)Zero voltage crossing switch on reduces equipment surgesUniversal fixing clampHeavy duty connection terminalsHigh performance NTC thermistor temperature probe; auto-shutdown fault protection

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Built in clean mode (takes the cooler off line for 2 hours, automatically switch-ing it back on again)Fits industry standard aperture 71mm * 29mmProgrammable set-pointProgrammable hysteresisIntegrated protective coverPython refresh Adaptive technologyReal time clock with battery back-upProgrammable timer with non-volatile memorySolid state switching of the top pump and compressor refrigeration deck

7. How It WorksDuring trading hours, the Series 1e™ controls the cooler normally. User de-fined set-point temperature and hysteresis/differential enables the cooler to function effectively in all environments. Managing the cooler precisely using ad-vanced control electronics and a calibrated temperature probe (supplied), DFx Series 1e™ maintains the temperature of the product efficiently and accurately.

Out of trading hours, the Series 1e™ enters ‘Energy Saving Mode’ and main-tains the temperature of the product at a maximum out of hours temperature, reducing significantly the amount of energy being used. Then, using advanced control algorithms, the Series 1e™ ‘learns’ when to lower the temperature of the product again ready for opening time. This means that by opening time the product is ready to be served as normal, perfectly chilled to your customers’ satisfaction!

Additionally, during the non-trading hours, the unique python refresh func-tion allows the coolant within the python to be regularly replenished. By doing this the Series 1e™ keeps the product within the python at a suitable, user set, temperature to maintain product quality.

A further feature offered by the Series 1e™ is a ‘diagnostics mode’ within which it is possible to display the maximum and minimum ice bath temperatures and the maximum and minimum number of compressor cycles experienced per hour by the cooler.

8. Series 1e™ Controller Installation

Please read the following instructions carefully before installing the DFx Series 1e™ controller:

Install the DFx Series 1e™ controller into the unit using the clamping bracket provided.

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Install the temperature probe supplied (housed within its holder and probe clip) inside the ice bath area by clipping it to the cooling pipes. The position of the probe within the holder is determined by the size of the ice bank (see schematic 11.2). Ensure that the temperature probe is installed in the correct position within the holder.

Connect the wires from the DFx Series 1e™ controller screw terminals to the various components of the cooler as per the Series 1e™ Screw Termi-nal Schematic (see section 11.).

Having made all of the necessary wiring connections, the wires should be gathered together and be bound in place using a cable tie. Care should be taken to ensure that they do not become trapped.

THE COOLER SHOULD BE PAT TESTED BEFORE IT IS SWITCHED ON! 9. DFx Series 1e™ Controller Instructions

Please read all of these instructions carefully.

Ensure that the cooler has been successfully PAT tested before use. Please note that the controller will wait for a time before starting up.

When in ‘energy saving’ mode ‘EnS’ will be displayed on the screen.

9.1 Current Ice Bath TemperatureThe default value displayed on the screen is the temperature that is currently being measured by the probe within the ice bath.

9.2 Setting the Set-point TemperatureHold the set (S) button down for two seconds and then release it. LEDs 1 and 2 should be lit up on the left hand side of the display. The value being displayed is the current set-point (lowest temperature at which the product is kept), measured in degrees Celsius, for the cooler during trading hours. To adjust this temperature press the increment (+) button to increase the value or the decre-ment (-) button to decrease the value. To store this new value press the set (S) button (this will also take you to the next screen).

9.3 Setting the Hysterisis/Differential Value Hold the set (S) button down for two seconds and then release it. Continue to press the set (S) button until LEDs 3 and 4 are lit up on the right hand side of the display. The value being displayed is the current hysterisis/differential value (permissible variation in the temperature above the set-point value), measured in degrees Celsius, for the cooler during trading hours. So, for example, if the set-point temperature is set at 1 degree Celsius and the hysterisis/differential value is 6 degrees Celsius, the temperature of the ice bath will be maintained

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•

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below 7 degrees Celsius. To adjust this value press the increment (+) button to increase the value or the decrement (-) button to decrease the value. To store this new value press the set (S) button (this will also take you to the next screen).

9.4 Diagnostics Mode Hold the set (S) button down for two seconds and then release it. Continue to press the set (S) button until LEDs 1, 2, 3 and 4 are lit up on the display. Press the increment (+) button to display the minimum temperature that has been experienced within the ice bath since the cooler was switched on. Press the increment (+) button to display the maximum temperature that has been experienced by the ice bath since the cooler was switched on. Next, press the increment (+) button to display the minimum number of compressor cycles per hour that have occurred since the cooler was switched on. Finally, press the increment (+) button to display the maximum number of compressor cycles per hour that have occurred since the cooler was switched on. When first switched on, no data will have been stored by the Series 1e™ controller, if this is the case, the display will read 9999 Please Note: If the unit is turned off all diagnostics data will be lost.

9.5 Setting the TimeHold the set (S) button down for two seconds and then release it. Continue to press the set (S) button until ‘SEtC’ is displayed. Press the increment (+) but-ton to display the current time. Next, to change the time, press the select ( ) button. To adjust the flashing digit press the increment (+) button to increase the value or the decrement (-) button to decrease the value and then press the select ( ) button to move to the next digit. Once all four digits have been inputted, press the set (S) button to save this new time.

9.6 Setting the DayHold the set (S) button down for two seconds and then release it. Continue to press the set (S) button until ‘dAYS’ is displayed. Press the select ( ) button to display the current day. To change the day, press the increment (+) button to scroll through the different days of the week. Once the correct day is being displayed press the set (S) button to save this setting.

9.7 Setting the Date (Day/Month)Hold the set (S) button down for two seconds and then release it. Continue to press the set (S) button until ‘dAtE’ is displayed. Press the select ( ) button to display the current day/month (shown as ‘DD:MM’). To change the flashing digit, press the increment (+) button to increase the value or the decrement (-) button to decrease the value. To move to the next digit, press the select ( ) button. Once the correct day and month are being displayed press the set (S) button to save this setting.

9.8 Setting the Date (Year)8

Hold the set (S) button down for two seconds and then release it. Continue to press the set (S) button until ‘YEAr’ is displayed. Press the select ( ) button to display the current year. To change the flashing digit, press the increment (+) button to increase the value or the decrement (-) button to decrease the value. To move to the next digit, press the select ( ) button. Once the correct year is being displayed press the set (S) button to save this setting.

9.9 Leap Year/Daylight SavingThe Series 1e™ controller will automatically adjust its clock to accommodate leap years or the summer time clock change until the year 2029. This means that once the date and time have been set during installation, they should not need to be reset until this date. However, it is recommended that the clock is checked at least once per year to ensure that the clock has not experienced any ‘drift’. If the device is being used in a country where summer time clock changes do not occur this function should be turned off. To turn the daylight saving function on/off press the set (S) button until ‘LItE’ is displayed. Press the select ( ) button to display/change the current status of the daylight sav-ing function. To turn the function on press the increment (+) button. To turn the function off press the decrement button (-). To save the changes made, press the set (S) button.

9.10 Trading Hours SetTHE SETTING OF THE TRADING HOURS IS ESSENTIAL AND MUST BE DONE WHEN THE COOLER IS FIRST INSTALLED.

The Series 1e™ controller uses the establishment’s trading hours to optimise energy savings. During trading hours, the Series 1e™ controller will ensure that the product is kept within the range of the set-point temperature and the hysterisis/differential. Hold the set (S) button down for two seconds and then release it. Continue to press the set (S) button until ‘HOUr’ is displayed. Pre-programmed trading hours run from 11:00 – 22:00, however, for the Series 1e™ controller to work correctly it is essential that the establishment’s own trading hours are programmed into the device.

The Series 1e™ controller allows different trading hours to be set for each day of the week (7 days). So, for example, if the establishment opens between 11:00 – 23:00 on a Monday, but between 11:00 – 19:00 on a Sunday this can be programmed into the Series 1e™ controller. Once programmed, the Series 1e™ controller will manage the temperature of the ice bath out of hours so that the product is brought back down to within the temperature range of the hysterisis/differential, ready for opening time. This ensures that the first bever-age dispensed will be chilled, just like the last. The Series 1e™ controller also allows the cooler to be turned on for up to 2 different periods each day, which is useful if the establishment closes for lunch. For example, the trading hours on

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a Monday could be set between 8:00 – 12:00 and 14:30 – 22:00.

If the establishment opens between 11:00 on a Tuesday but closes at 02:00 on a Wednesday morning (i.e. it is open until 2 am) it is necessary to program the Series 1e™ device as follows: In this case the user would need to set the trading hours to be between 11:00 – 24:00 on a Tuesday and 00:00 – 02:00 on a Wednesday. Programming the Series 1e™ device like this will ensure un-interrupted power to the cooler between the hours of 11:00 on a Tuesday and 02:00 on a Wednesday.

Setting Opening and Closing Times:Hold the set (S) button down for two seconds and then release it. Continue to press the set (S) button until ‘HOUr’ is displayed. Press the select ( ) button to enter the ‘Trading Hours Set’ mode. Trading hours are programmed accord-ing to day, starting with Sunday. Note: Trading hours can be programmed to the nearest 10 minutes.

Up to 2 different opening (OPEN) and closing (CLOSE) times can be set for any given day, for example, if an establishment opens between 10:00 – 12:00 and 15:30 – 17:00 on a Sunday these opening and closing times can be pro-grammed into the device for Sunday. Each day and each opening and closing time needs to be programmed separately, one after the other. With the name of the day for which opening hours are to be set being displayed, press the select ( ) button to begin inputting the opening hours.

The first time being displayed (with LED 1 flashing) represents the time at which the establishment first opens on the selected day. To change this time, press the increment (+) and decrement (-) buttons until the correct time is shown. In the example given, 10:00 should be entered. To save this time, press the select ( ) button.

The next time being displayed (with LED 2 flashing) represents the time at which the establishment next closes on the selected day. To change this time, press the increment (+) and decrement (-) buttons until the correct time is shown. In the example given, 12:00 should be entered. To save this time, press the select ( ) button.

The next time being displayed (with LED 3 flashing) represents the time at which the establishment opens, for the second time, on the selected day. If necessary, change the time as described. In the example given, 15:30 should be entered. To save this time, press the select ( ) button.

The next time being displayed (with LED 4 flashing) represents the time at which the establishment closes, for the second time, on the selected day. If

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necessary, change the time as described. In the example given, 17:00 should be entered. To save this time and move to the next day, press the select ( ) button. Repeat the process, as before, for each of the subsequent days of the week.

In some cases not all opening and closing times will have values (for example, when an establishment is only open between 11:00 and 17:00 and does not open for any other periods of the day). Where this is the case all other opening and closing times must be set to ‘OFF’. This should be done (when changing the time) by pressing the increment (+) button until ‘OFF’ is displayed on the screen (‘OFF’ is found after 24:00).

Opening and closing hours should be set in chronological order.

The table found in section 12.2 may be useful when programming trading hours into the Series 1e™ controller. An example of how the table may be used is also shown (12.1).

Please Note: If your establishment’s trading hours are likely to fluctuate slightly it is advisable to adjust the trading times to accommodate this. However, this may result in a reduction in energy savings.

Example: The trading hours for the example table (found in section 12.1) are as shown below. Note how Thursday’s trading hours have been written into the table.

Monday: 10am – 2pmTuesday: 11am – 2pm, 3pm – 6pm Wednesday: 10am – 2pmThursday: 11am – 2amFriday: 10am – 2pmSaturday: 11am – 2pm, 3pm – 6pm Sunday: 10am – 12pm

Should invalid trading hours be entered, the 1e controller will display ‘Err’. All errors must be corrected before exiting the ‘Trading Hours Set’ mode. NB: Both the ‘OPEN’ and ‘CLOSE’ times of an invalid entry should be checked to ensure that they are both correct.

9.11 Python RefreshWhen the Series 1e™ controller is in energy saving mode, the python refresh function replenishes the coolant within the python to maximise energy savings and maintain product quality. By default, this function should remain on, however, if necessary this function may be turned off. To turn the python re-

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fresh function on or off, hold the set (S) button down for two seconds and then release it. Continue to press the set (S) button until ‘PYTH’ is displayed. Press the select ( ) button to display the current status of the function. Should the status need to be changed, press the increment (+) button to turn the function on and the decrement (-) button to turn the function off. Press the set (S) button to save this new setting.

9.12 Setting the Out of Hours TemperatureTo maximise energy saving out of hours the product is allowed to rise above the normal set-point temperature. The maximum temperature to which the cool-ant in the bath is allowed to rise out of hours is set, by default, to 7 degrees Celsius. This temperature should be reviewed and changed by the user, if necessary, according to the product type being refrigerated. The higher the out of hours temperature, the greater the energy saving. However, it is rec-ommended that the out of hours temperature is not set to more than 7 degrees above the set-point temperature. Please Note: The Series 1e™ controller will automatically ‘pull down’ the temperature of the product to serving temperature ready for opening time.

To change the out of hours temperature, hold the set (S) button down for two seconds and then release it. Continue to press the set (S) button until ‘SEtt’ is displayed. Press the select ( ) button to display the current out of hours tem-perature. To change the temperature press the increment (+) button to increase the value or the decrement (-) button to decrease the value. To store this new value press the set (S) button (this will also take you to the next screen).

9.13 ResetResetting the Series 1e™ controller will reset all optimisation settings that have been stored on the controller. All other settings will remain. To reset the control-ler, hold the set (S) button down for two seconds and then release it. Continue to press the set (S) button until ‘rSt’ is displayed. To reset the controller, press the select ( ) button, when the device has been reset, ‘dONE’ will be dis-played.

9.14 Returning to the Current TemperatureTo return to the current temperature screen from any of the other menu items, wait for the controller to time out or press the set (S) button until ‘--.-’ is dis-played.

9.15. Clean ModePressing the increment (+) and decrement (-) buttons together will put the controller into clean mode (‘CLn’ will be displayed on the screen). This turns the components of the cooler off for two hours (or until the set (S) button is pressed) to allow cleaning to take place.

9.16 OverrideWhen the controller is in energy saving mode (and ‘EnS’ is displayed), the product temperature is allowed to rise above the hysterisis/differential of the set-point temperature to the maximum out of hours temperature. An override function exists, should the product need to be maintained within the range of the hysterisis/differential of the set-point temperature out of hours (for exam-ple, if the establishment remains open out of normal trading hours). To turn the override funtion on press the select ( ) button, when the controller is in energy saving mode. To turn the override function off press the select ( ) button again, or wait for the next trading period to begin.

10. Warning Signals

10.1 High TemperatureShould the temperature of the ice bath rise to 2 degrees Celsius above the hysterisis/differential and set-point temperature, the current temperature being displayed on the screen will start to flash. Should this continue for a prolonged period of time under normal conditions, the unit should be turned off and serv-iced.

10.2 Temperature Probe FaultShould a fault be detected with the temperature probe, ‘88.8’ will be displayed on the screen and the compressor will be switched off. If this occurs, the unit should be serviced.

11.1 Series 1e™ Screw Terminal Schematic

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Compressor 16A Max. (resistive)Fan 3A Max. (resistive)

Live 230v InputNeutral

Temperature Probe C 1

11.2 Series 1e™ Temperature Probe Holder Schematic

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Large Ice Bank

Normal Ice Bank

Small Ice Bank

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DFx Series 1eTM Controller

Instruction Manual

DFx Technology Ltd., Unit 8B Witan Park,

Avenue Two,Station Lane,

Witney, Oxfordshire,

OX28 4FH

Tel: 01993 705151 Fax: 01993 705551

www.dfxtech.co.uk/cooler

660-024-01