Elecro Engineering Koolsmart PLUS Installation instructions

Koolsmart PLUS
Touchscreen Cooling Controller
Installation & Operating Manual

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Contents
IMPORTANT NOTES ..................................................................................................................3
1. PRODUCT OVERVIEW ........................................................................................................3
2. GENERAL INSTALLATION INSTRUCTION ........................................................................4
2.1 Mounting instructions..........................................................................................................4
2.2 Electrical connection...........................................................................................................5
3. WIRING DIAGRAM...............................................................................................................6
4. DIGITAL TOUCHSCREEN CONTROLLER OVERVIEW .....................................................7
5. OPERATING INSTRUCTION................................................................................................7
6. INSTALLATION MODE ........................................................................................................9
6.1 Language Setup.................................................................................................................9
6.2 UNITS Setup ....................................................................................................................10
6.3 CLOCK Setup...................................................................................................................10
6.4 TIMER Setup....................................................................................................................11
6.5 Probe Calibration Setup ...................................................................................................11
6.6 MODBUS Setup ...............................................................................................................12
6.7 FACTORY Setup..............................................................................................................13
7. OPERATING MODES.........................................................................................................13
7.1 Standby Operating Mode..................................................................................................13
7.2 Normal Operating Mode...................................................................................................14
7.3 Timer Mode ......................................................................................................................14
8. TROUBLE SHOOTING.......................................................................................................15
9. DISPOSAL OF ELECTRICAL/ELECTRONIC EQUIPMENT..............................................16
10. WARRANTY .......................................................................................................................16

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IMPORTANT NOTES
Thank you for purchasing the Koolsmart Plus Touchscreen Cooling Controller manufactured to the highest
standards in England.
To ensure years of trouble-free service, please read and follow these instructions for proper installation,
maintenance, and use. Incorrect installation will affect your warranty.
The appliance is not to be used by children or by people with reduced physical, sensory, or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction.
Please retain this manual for future reference.
1. PRODUCT OVERVIEW
Fig 1.

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2. GENERAL INSTALLATION INSTRUCTION
Screw mount the Koolsmart Plus to a suitable wall in a dry weatherproof location out of direct sunlight,
ensuring that it is sited no more than 1 metre from the flow sensor and temperature sensor parts on your
Elecro heat exchanger.
Fig 2.
The rear face of the Koolsmart Plus has an upper keyhole screw hook, located at the rear of the enclosure,
and 2 lower screw holes which are accessed after removing the 4 screws retaining the lower access cover
at the front.
2.1 Mounting instructions
The Elecro G2 and SST Heat Exchangers have common ports at both sides of the heat exchanger to
accommodate the NTC Temperature Sensor or the Flow Sensor.
It is important to ensure that the NTC Temperature Sensor is positioned on the water entry side of the heat
exchanger - see below.

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Fig 3.
2.2 Electrical connection
The Koolsmart Plus must be installed in accordance with the Country / regional requirements and
regulations. In any event the work must be carried out by a qualified electrician who will provide a certificate
of conformity upon completion of the work.
Undo the lower cover screws and remove the electrical access cover.
All electrical connections should be made into the relevant terminal block position, according to the labelled
positions.
Connection Explanation:
•Terminal 1 = Incoming Live 220 to 240V
•Terminal 2 = Incoming Neutral
•Terminal 3 and 5 = Primary circuit pump output 220-240V
•Terminal 5 and 6 = Alarm Output –Volt free (activated when water temperature is higher by 2.7
degrees C above the set point0
•Terminals 7 and 8 = Cooling Out –Volt free switched output to control chiller, (2-Amp MAX if the
load is greater than 2-Amp an auxiliary contactor must be used)
•Terminal 9 = Earth
•Terminal 10 and 11 = Flow Switch
•Terminals 12 and 13 = NTC Temperature sensing probe
•Terminals 14, 15 and 16 = R5485 MODUBS Data Link
See wiring diagram on page 7.

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3. WIRING DIAGRAM

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4. DIGITAL TOUCHSCREEN CONTROLLER OVERVIEW
The Touchscreen digital controller has been pre-programmed with all the necessary parameters to ensure
reliable service & operation. Below is an overview indicating the controller button keys and graphical
symbols.
5. OPERATING INSTRUCTION
On initial power up of the controller the digital display will be illuminated.
The chilling device will only be switched ‘On’ when the following criteria are met i.e.:
•Water circulating pump is ‘On’ delivering in excess of 4,000 litres per hour (4m³/h)
•The required temperature is set to a lower value than the actual water temperature

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The digital display will show ‘NORMAL’ and the
graphical red coloured thermometer will be
‘Animated’ whenever the chiller is switched ‘ON’.
The actual pool water temperature is shown in the upper area of the display. The required temperature is
shown in the lower area of the display. The required water temperature can be adjusted by touching the
‘UP / DOWN’ touch button keys until the required temperature is displayed, adjustments are in 0.1°C
increments.
Time Switching Delay
To prevent overheating of the switch components within the cooling device caused by frequent on/ off
switching (cycling) the controller has been pre-programmed with a time delay function.
When time switching delay is activated the message display will show ‘CHILLER DELAY’ for 2 minutes.
Differential
When the water has reached the required temperature the chiller will switch off and will not switch
back on until the water temperature has fallen 0.6°C below the required temperature.
Operating Modes
There are five operating modes:
Normal
Timer
Priority
Installation
Standby
The required Modes are selected by touching the
‘M’ button key, each touch causes the mode to
change to the next mode. The display will indicate
which mode is currently selected together with the
clock time.
(Example illustrated ‘INSTALLATION’ mode)

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6. INSTALLATION MODE
When entering Installation mode, the chilling device and pump will immediately be turned off (if they are
on) and will not be permitted to be turned on while the controller remains in any of the setup menus. On
exiting the ‘Installation’ mode the controller will revert to the ‘Normal’ mode and follow the same procedure
as if first entering that mode, the display will reflect this.
•LANGUAGE (English, French, German, Spanish and Russian)
•UNITS (temperature units; centigrade or Fahrenheit)
•CLOCK (set current time)
•TIMER (four-time settings for switching the chilling device ‘On’ and ‘Off’)
•PROBE CAL (Temperature calibration adjustment)
•MODBUS (Set Baud rate, address and parity for BMS connection)
•FACTORY (Access restricted)
•EXIT
6.1 Language Setup
Enter the ‘INSTALLATION’ mode by touching the ‘M’ button key repeatedly until ‘INSTALLATION’
appears at the top of the display then touch the ‘O.K’ button key.
Touch the ‘UP’ / ‘DOWN’ button keys until the desired language is displayed then touch the ‘O.K’ button
key to select

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6.2 UNITS Setup
After selecting ‘O.K’. For the language setup the display will then revert back to show
‘LANGUAGE’ touch the ‘UP’ / ‘DOWN’ button keys again to display the next option which is
‘UNITS’ touch the ‘O.K’ button key to select, the display will show ‘UNITS’ and ‘CENTIGRADE’
touch the ‘UP’ / ‘DOWN’ button keys to change to ‘FAHRENHEIT’ if required, touch the ‘O.K’
button key to select and save, the display will then revert back to ‘UNITS’.
6.3 CLOCK Setup
Touch the ‘UP’ / ‘DOWN’ button keys to display the next option which is ‘CLOCK’ touch the ‘O.K’ button
key to select, the display will show ‘SET TIME’ and the current clock time, touch the ‘UP’ / ‘DOWN’ button
keys to change the clock time, touch the ‘O.K’ button key when the time is correct to save.
Note: The time can only be set in the 24-hour format.