Elecro Engineering Cygnet Evolution 2 Installation instructions

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Cygnet Evolution 2 Pool Heater
(Digital)
Installation & Operating Manual

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CONTENTS
1. PRODUCT OVERVIEW.........................................................................................................3
2. GENERAL INSTALLATION INSTRUCTION ........................................................................4
2.1 Mounting instruction ...........................................................................................................4
2.2 Pipe work............................................................................................................................5
2.3 Flow direction .....................................................................................................................6
2.4 Electrical connection...........................................................................................................7
2.5 Power Requirements..........................................................................................................8
2.6 Dedicated RCD Safety Circuit ............................................................................................8
3. OPERATING INSTRUCTIONS .............................................................................................9
3.1 Flow requirements..............................................................................................................9
3.2 Water quality.......................................................................................................................9
3.3 Selector knob operation......................................................................................................9
3.4 Choose your language .....................................................................................................10
3.5 Set point ...........................................................................................................................11
3.6 Heating mode...................................................................................................................11
3.7 Calibrate temperature.......................................................................................................12
4. TROUBLE SHOOTING.......................................................................................................12
5. MAINTENANCE..................................................................................................................15
6. DISPOSAL OF ELECTRICAL/ELECTRONIC EQUIPMENT ..............................................15
7. WARRANTY........................................................................................................................16
8. DEDICATED RCD WIRING DIAGRAM FOR CORRECT OPERATION OF THE CYGNET
EVOLUTION 2 HEATER.....................................................................................................17
9. WIRING DIAGRAMS:..........................................................................................................18

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INTRODUCTION
Thank you for purchasing a Cygnet Evolution 2 aquatic electric heater 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.
WARNING: Failure to install the unit correctly may result in the warranty being void.
Please retain this manual for future reference.
1. PRODUCT OVERVIEW
Fig.1
Dimensions:
* for dimension ‘L’ – refer to section 2.5

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2.GENERAL INSTALLATION INSTRUCTION
2.1 Mounting instruction
The heater should be either installed horizontally or vertically allowing enough space for the pipe
connections and wiring. It should be firmly secured using screws to a firm base or wall.
WARNINGS: If the heater is placed against a combustible material a fireproof barrier must be
placed between the unit and the wall, this must cover a minimum of 15cm
around the outside of the heater. The unit mustnot be covered to allow adequate
ventilation.
The heater must be installed within a dry, permanent weather-proof area. In any
case where water or moisture enters the enclosure the warranty will be void.
Caution: If the heater is unused during the winter months, it must be drained to prevent frost
damage. Water must not be allowed to freeze in the heater, as this will cause severe
damage.
See Fig. 2 for mounting instructions when securing to the wall or floor.
FLOOR MOUNT
WALL MOUNT
Fig. 2

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2.2 Pipe work
The heater should be installed at a low point in the filtration system. It should be positioned downstream
of (after) the filter and upstream of (before) any dosing or other water treatment plan (see Fig 3).
Fig.3
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Fig.4

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2.3 Flow direction
The heater can accept flow of water from only one end (see Fig. 5). If the flow direction is opposite to
Fig. 5 the heater must be rotated by 180° so the flow switch is always where the water exits.
DO NOT REVERSE THE FLOW SWITCH
INLET OUTLET
Fig. 5
It is essential that the pipe work connecting to and from the heater has a minimum bore (internal diameter)
of 32mm. To support correct air purging and to ensure the heater remains completely full of water during
operation, the return pipe which carries the water back to the pool must incorporate a safety loop or ‘kick-
up’ in the pipe as close as possible to the heater (see Fig 4).
NOTE: When coupling to a flexible pipe a safety loop can easily be formed by directing the pipe up
and over an obstacle. Pipe clips should be used to securely fasten all hose connections.
Fig. 6 Fig. 7
If rigid pipework is used
There is no need to use mastic or PTFE tape to connect unions or hosetails to the heater, use the O-ring
supplied which should be slid over the threaded ends (see Fig. 6).
All factory unions are made from ABS plastic, when gluing connections to an ABS pipe an ABS cement
must be used or when using a PVC pipe, a Transition cement must be used (see Fig. 7).
NOTE: Be sure to apply the glue evenly and to all surfaces that will be in contact to reduce the
risk of leakage.

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If flexible pipework is used
Connect the pipe to the non-threaded side of the hosetail and secure using two jubilee clips
(See Fig. 7)
NOTE:
•The hosetail may need to be cut depending on the diameter of the pipe.
•Wrap PTFE tape or use silicone around the hosetail before connecting the
pipe to reduce the risk of leakage.
•When using non-standard pipework, the first thing to note is that the smooth
end of the pipe will not fit into anything other than another fitting of the same
brand. You will have to cut it off. The hose tail will push fit in to the cut end
of the pipe, but it will not be watertight. You can put two jubilee clips on it
but because of the ridges in the pipe it will not squeeze down tight. It will
need to be sealed with a bathroom type mastic sealant.
2.4 Electrical connection
WARNINGS:
•This device must be installed by a qualified Electrician following the
instructions provided in this manual. The manufacturer will not be liable for
any issues caused by poor or improper installation.
•Any alterations made to the unit (unless stated) will affect the warranty. This
also applies if components are changed for non-standard components
acquired anywhere other than direct from the manufacturer.
•Incorrect installation may result in serious damage to property/persons.
•The heater must be installed in accordance with the country/regional
requirements and regulations and an Electrical Installation Certificate must
be provided on completion of the installation.
•The power supply must be fitted with a 30mA RCD. If required, the
Electrician may replace the cable entry gland supplied with a larger size to
secure the cable powering the heater.
Minimum cable sectional area
This should be calculated at 5-amp/mm2for distances up to 20 metres (these sections are indicative and
should be checked and adapted if necessary, for cable lengths over 20 metres).
Fig.8

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Connections
•To connect the power supply cable, remove access cover (see Fig. 8).
•Make sure that all connections to the terminal block are correct as per the label inside the heater
and they are tight.
•Make sure not to expose the cable to anything which can cause damage to it i.e. sharp edges, hot
surfaces, or crush hazards.
•The cable should be fixed to avoid any trip hazard.
2.5 Power Requirements
Power
Output
[kW]
Voltage
[V]
Current
[A]
‘L’
[mm]
3 Phase
Power
Output
[kW]
400 V Star
Current
[A]
‘L’
[mm]
1
220-240
6
462
6
380-415
9
592
2
220-240
9
462
8.4
380-415
13
592
3
220-240
13
462
4
220-240
18
462
6
220-240
27
462
8
220-240
35
592
2.6 Dedicated RCD Safety Circuit
•The heater is fitted with a high limit Safety Circuit which must be connected to a dedicated RCD
and circuit breaker.
•The Safety Circuit is constantly monitoring the flow tube temperature. Air pockets, incrustation,
debris build-up or faulty components can be a reason of a sudden temperature rise inside the flow
tube. To protect heating elements and other components the Safety Circuit will trigger the RCD
and shut down the power to the heater.
WARNING: The Safety Circuit must be connected. Failure to do so will void the warranty and
might result in product failure.
NOTE: The Safety Circuit is fitted with a TEST BUTTON which must be tested after
completing installation of the heater to confirm it is operating correctly. When
pressed, the RCD should instantly trip and cut the power to the unit (See Fig. 9).
Fig.9

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3. OPERATING INSTRUCTIONS
3.1 Flow requirements
The flow rate of water into the heater must not exceed 17,000 litres per hour (17m3/hour/3,740 UK gallons
per hour). A higher flow rate will require the installation of a bypass to prevent damage to the heater
elements.
NOTE: The heater will not operate unless the following minimum flow rates are achieved:
1,000 litres/hour (1m3/hour/220 UK gallons/hour)
3.2 Water quality
The water quality MUST be within the following limits:
•PH: 6.8 –8.0
•Total Alkalinity (TA): 80 –140 ppm (parts per million)
•Chloride Content MAX: 150 mg/litre
•Free Chlorine: 2.0 mg/litre
•Total Bromine: Max 4.5 mg/litre
•Total Dissolved Solids (TDS)/Calcium hardness: 200 –1,000 ppm
Stainless Steel heaters are NOT suitable for use on saline (salt) water pools. ONLY heaters with titanium
heating elements are suitable for use on saline (salt) water pools.
WARNING: Failure to meet the water quality limits will void the warranty.
Upon completion of the installation, run the water-circulating pump to purge the system and heater of air
(i.e. remove any trapped air in the system and heater).
•Switch on the power supply to the heater. This will be indicated by the illuminated Amber light on
the panel.
•Turn the thermostat to the desired temperature.
•The heater will only start heating (red light indicator illuminated) when thefollowing criteria are met:
➢Water circulating pump is ‘On’ delivering more than the minimum flow rate of water (see 3.1
flow requirement).
➢The required water temperature point is set to a higher value than that of the water.
Useful advice:
To reduce running costs and speed up the heating process, insulate the pool wherever possible. A floating
solar cover is an essential minimum to retain heat.
3.3 Selector knob operation
To aid navigation through the controller options, the digital heater is fitted with a selector knob for easy
and user-friendly navigation.
To adjust or select any option simply turn the knob clockwise or anti-clockwise (see Fig. 10).
To confirm selected option, press the knob button (OK). The display should show message ‘SAVED’
confirm the changes (see Fig. 11).

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Fig. 10
Fig. 11
3.4 Choose your language
On initial power up, the display will illuminate and show a language message, (see Fig. 12). If the controller
detects inactivity for 3 seconds, it will default the language to English.
Fig. 12
There are five languages to choose from English, French, Spanish, German and Russian.
To select a language, turn the knob clockwise or anti clockwise until the desired language is displayed.
Press the knob button (OK) to accept the changes.
NOTE:To access language mode, press the knob button (during heating only). You can also
access language mode by resetting power to the heater.

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3.5 Set point
The setting can be changed (desired water temperature), any time by simply turning the knob clockwise
or anti clockwise until the required temperature is shown on the display (see Fig.13). To confirm the
changes, press the knob button (OK).
The display should show ‘SAVED’ message.
Fig. 13
3.6 Heating mode
If the heater is receiving enough flow and the set point value is greater than the pool water temperature
‘HEATER DELAY’ will be shown on the display (see Fig. 14).
It will appear for two minutes before thedevice commences the heating process. The delaytime is required
to prevent a cycling effect due to air pockets trapped in the pipe work system or any water fluctuations.
The combination of the delay time and flow switch sensor is ensuring that the device always receives
enough flow and the heating element is fully submerged. This will extend the life expectancy of the
components and the product.
After two minutes,the controller will switch on the heating output, RED LIGHT will come ON and the display
will show current water temperature (see Fig. 15).
Fig. 14
Fig. 15

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The heater will stay on until the set temperature point is reached. When reached the heater will maintain
the pool temperature within 0.5°C differential.
3.7 Calibrate temperature
If for any reason the water temperature displayed by the controller is different to the water temperature in
the pool, adjust this by pressing and holding the dial button forfive seconds. The display will show calibrate
and the actual temperature (see Fig. 16). Turn the dial clockwise to adjust it UP or anti clockwise to adjust
it DOWN.
Fig. 16
NOTE:The controller will allow maximum adjustments of ± 2°C. If the controller displays ‘No flow’
message, then entering the calibration mode will not be possible.
Useful advice:
To reduce running costs and speed up the heating process, insulate the pool wherever possible. A floating
solar cover is an essential minimum to retain heat.
4.TROUBLE SHOOTING
➢Quick Function Test
Observe the main electricity meter when the heater is on (i.e. red light ‘On’) and then observe it again
when the heater is in the standby mode (i.e. amber light ‘On’). The test should show that the meter is
recording more electricity being used by the heater when the red light is ‘On’. It is impossible for an electric
heater to wasteenergy, if it is drawing power then that power will be turned into heat that will be transferred
to the water.
➢Accurate Function Test
If a more accurate test is required to confirm that your heater is delivering the specified heat output, two
electricity meter readings will need to be taken from the property’s main electricity meter, at one hourly
intervals (i.e. take one-meter reading and then a second reading exactly one hour later). By subtracting
the first reading from the second reading the number of units (kilo Watts kW) consumed can be calculated.
Note that your heater is also rated in kW hours.
The pool pump and heater will need to be running continuously during the test (i.e. with the heater red light
‘On’). To avoid inaccurate results when performing this test, it is important to refrain from using other high
current consuming appliances in the property, such as tumble dryers, showers, cookers etc. A large
domestic pool pump of one horsepower will draw less than 1-kW in a one-hour period. The conclusion of
the test should prove that for example a 6-kW heater and a half horsepower pump will draw between
6.3-kW to 6.5-kW in one hour.

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➢Heater will not switch from standby to on (Red light):
In most cases this will be the result of one of the following points not being met:
Possible Cause 1: The temperature point set has been achieved. To confirm the
increase of the temperature set, turn the dial to a value greater than
the current water temperature.
Possible Cause 2: NO FLOW message
This message is displayed (see Fig.17) only when the heater is not
receiving enough flow. This could be due to the circulation pump
being switched off. The pump is not powerful enough to meet the flow
requirements (See 3.1 Flow requirements). The cartridge filter needs
cleaning or replacing. The sand/glass media filter creates too high a
back pressure and needs a backwash.
Fig. 17
Possible Cause 3: HEATER DELAY message
Please refer to Page 9
Possible Cause 4: OUT OF RANGE message
This error message will be shown (see Fig.18) in case of the
temperature sensor failure or in case the temperature inside the flow
tube is outside of the measurement range of the sensor (0 - 100°C).
During the winter the time temperature could drop below 0°C.
Fig. 18

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Possible Cause 5: SHUTDOWN HIGH AMBIENT message (See Fig.19). The heater is
fitted with intelligence sensors not only monitoring the water
temperature but also the temperature within the electrical enclosure.
To protect the components if the temperature inside the enclosure
reaches 60°C, the controller will shut down and go to STAND BY
mode. This could be due to the product being exposed to direct
sunlight, operating in a very hot environment. As soon as the
temperature drops down the heater will come back on to heating
mode automatically.
Fig. 19
➢No display on the heater when it is switched ‘On’
Possible Cause: Power failure external to the heater
Remedy: Check any fuses, RCD or other switch components installed in the
supply cable.
NOTE: The heater PCB control board is fitted with a fuse which should be
inspected.
➢The flow tube does not feel warm:
Due to the high efficiency of your electric heater no warmth should be detectable from the flow tube
of the heater.
The most likely causes of the flow tube feeling warm are:
Possible Cause 1: The heater has been positioned in direct sunlight.
Possible Cause 2: An air pocket is trapped inside the heater particularly if the tank feels
warmer at the highest point of the tank (as air rises).
➢The water entering the pool does not feel much warmer:
The temperature gain of the water after it has passed through the heater will be directly proportional
to the volume of water being pumped in relationship to the power output of the heater.
For example: A 6-kW heater, when connected to a 4,000 litre/hour pump will
produce a lift in temperature of approximately 1.2°C (almost
undetectable to the human hand), however, as the water being
heated is re-circulated from a single body of water, the time required
to heat it remains unaffected by the volume of the flow. A popular
misconception is that slowing down the flow rate will speed up the
heating process.

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➢Heater is tripping circuit breaker (MCB) after few minutes/ hours of operation:
If the heater is faulty it will instantly trip the circuit breaker (MCB). The most likely causes of tripping
the breaker after a period of time are:
Possible Cause 1: Faulty circuit breaker.
Possible Cause 2: Incorrect size of the circuit breaker.
Possible Cause 3: Cross section of the cable is not sufficient.
Possible Cause 4: Loose connection(s) of the power supply cable. Check both ends of
the power supply cable (at the distribution box and at the heater
terminal block).
Remedy: Contact an Electrician to check installation and protection.
➢Heater is tripping circuit breaker (MCB) or RCD instantly:
Possible Cause 1: Short circuit caused by the wiring or faulty components.
Possible Cause 2: Heating element is going to ground or is damaged.
Possible Cause 3: Moisture inside the heater.
Remedy: Send heater back to the manufacturer. Use return form on page 17
or download it from the Elecro website.
➢Power supply cable is getting very hot:
Possible Cause 1: Cross section of the power supply cable is not sufficient.
Possible Cause 2: Loose connection(s) of the power supply cable. Check both ends of
the power supply cable (at the distribution box and at the heater
terminal block).
Remedy: Contact an Electrician to check installation. Inspect for loose
connections and upgrade the power supply cable to a bigger size if
necessary.
5. MAINTENANCE
We recommend annual maintenance and cleaning of the heater to ensure proper operation.
WARNING: Before performing any maintenance on the unit isolate from the main power supply.
The heater should be drained, the flow tube and heating elements should be cleaned. Removing
scale/sludge and any debris or blockages will extend life expectancy of the heating element(s) and avoid
potential failures.
Check that electrical cable connections are properly tightened.
6.DISPOSAL OF ELECTRICAL/ELECTRONIC EQUIPMENT
DO NOT dispose of this product as an unsorted municipal waste.
This symbol on the product or on the packaging indicates that this product should not be treated as
household waste. Instead it should be handed over to the applicable collection point for the recycling of
electrical and electronic equipment.
By ensuring this product is disposed of correctly you will help prevent potential
negative consequences for the environment and human health, which could
otherwise be caused by inappropriate waste handling of this product. The
recycling of materials will help to conserve natural resources.
For more information please contact your local Civic Office, household waste
disposal service or the retailer where the product was purchased.

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7.WARRANTY
This product is guaranteed from the date of purchase against faulty workmanship and materials
for:
–two years within Europe
–one year outside Europe
•The manufacturer will replace or repair, at its discretion, any faulty units or components returned
to the Company for inspection.
•Proof of purchase may be required.
•The manufacturer will not be liable in cases of incorrect installation of the heater, inappropriate use
or neglect of the heater.
•Any damages occurred due to shipping must be reported within 48 hours of receipt of the product.
Any claims after this time will be considered as misuse or abuse of the product and will not be
covered by the warranty.
•Any glass parts, seals and water connections are considered as consumables and are not covered
by the warranty.

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8.DEDICATED RCD WIRING DIAGRAM FOR CORRECT OPERATION OF THE
CYGNET EVOLUTION 2 HEATER

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9. WIRING DIAGRAMS:

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Elecro Engineering Ltd
RepairsDepartment
Unit 11 Gunnels Wood Park
Gunnels Wood Road
Stevenage
Hertfordshire SG1 2BH
United Kingdom
__________________________________________________________________________________
Customer Information: (ATTACH TO HEATER)
Company Name:
……………………………………………………………………………….
Contact Name:
……………………………………………………………………………….
Daytime Telephone Number:
……………………………………………………………………………….
Email Address:
………………………………………………………………………………..
Return Address:
………………………………………………………………………………..
………………………………………………………………………………..
………………………………………………………………………………..
Post/Zip Code:
………………………………………………………………………………..
Country:
……………………………………………………………………………….
Suspect Fault / Description of problem:

11 Gunnels Wood Park, Stevenage, Herts SG1 2BH
[email protected] www.elecro.co.uk [phone]
© Copyright V01.2019