Elecro Engineering Titan Optima Series Installation instructions

Titan Optima
(Touchscreen)
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......................................................................................................................5
2.4 Electrical connection...........................................................................................................5
2.5 Power requirements ...........................................................................................................6
3. OPERATING INSTRUCTIONS .............................................................................................7
3.1 Flow requirements..............................................................................................................7
3.2 Water quality.......................................................................................................................7
3.3 Digital touchscreen heater overview...................................................................................8
4. TROUBLE SHOOTING.......................................................................................................18
5. MAINTENANCE..................................................................................................................21
6. DISPOSAL OF ELECTRICAL/ELECTRONIC EQUIPMENT..............................................21
7. WARRANTY .......................................................................................................................21
8. WIRING DIAGRAMS...........................................................................................................22

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Introduction
Thank you for purchasing an Optima Compact electric swimming pool 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
Dimensions:

4
Power (kW)
Voltage (v)
‘L’ (mm)
18-72
400 3 Phase
699
96-120
400 3 Phase
1042
18-54
220-240 3 Phase
699
60-90
220-240 3 Phase
1042
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 using the supplied
wall bracket.
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 must not 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.
NOTE: Ensure the correct bracket fixing bolts and wall plugs are used (not supplied).
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.
2.3 Flow direction
The heater can accept flow of water from only one end (please refer to flow direction labels on the
products).
DO NOT REVERSE THE FLOW SWITCH
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 2.).
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.
NOTE: Be sure to apply the glue evenly and to all surfaces that will be in contact to reduce the
risk of leakage.
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.

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•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).
Connections
•To connect the power supply cable, remove access cover (see Fig. 4).
•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.
Fig. 4
2.5 Power requirements
All Titan Optima heaters are fitted with their own specification plaque that details the power requirements
for the heater. Below is a table of the power requirements for the most common voltages - if your voltage
is not listed please refer to the specification plaque on the product. The table below also shows the number
of heating element banks within your heater, each bank of elements is supplied by two independent
contactors.
Model
400V 3 Phase
Number of Element Banks
18-kW
26-Amp
2
24-kW
35-Amp
2
30-kW
44-Amp
2
36-kW
52-Amp
2
45-kW
66-Amp
3
54-kW
78-Amp
3
60-kW
87-Amp
3
72-kW
104-Amp
3
96-kW
139-Amp
4
120-kW
174-Amp
5

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3. OPERATING INSTRUCTIONS
3.1 Flow requirements
The heater should be connected to a filtration system with a minimum flow volume of 12,000-litres per
hour (2,640 UK gallons per hour). The maximum flow volume that the heater will operate with is 40,000-
litres per hour (8,800 UK gallons per hour). Recommended flow is 30,000 litres per hour (6,660 UK gallons
per hour).
If the flow volume is greater, a by-pass must be installed to prevent damage to the heating elements.
NOTE: The flow direction is fixed and must not be reversed.
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).
Useful advice:
To reduce running costs and speed up the heatingprocess, insulate the pool wherever possible. A floating
solar cover is an essential minimum to retain heat.

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3.3 Digital touchscreen heater overview
The Touchscreen digital heater has been pre-programmed with all the necessary parameters to ensure
reliable service & operation. Belowis an overviewindicating the heater button keys and graphical symbols.
On initial power up of the heater the digital display will be illuminated.
The heating device will only be switched ‘On’ when the following criteria are met i.e.:
•Water circulating pump is ‘On’ delivering in excess of the minimum flow requirement (see page 7).
•The required temperature is set to a higher 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 heating
device 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.
Priority of Heating is a function that ensures your pool water is constantly maintained at your required
temperature. When Priority of Heating is activated the Symbol will be displayed on the screen.
The heater will then monitor the pool water temperature and start both the pool circulation pump and
heating process when necessary.
Time Switching Delay
To prevent overheating of the switch components within the heater caused by frequent on/ off switching
(cycling) the heater has been pre-programmed with a time delay function.
When time switching delay is activated the message display will show ‘HEATER DELAY’ for 2 minutes.
Differential
When the pool water has reached the required temperature the heating device 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

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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)
Installation Mode
When entering Installation mode, the heater and pump will immediately be turned off (if they are
on) and will not be permitted to be turned on while the heater remains in any of the setup menus.
On exiting the ‘Installation’ mode the heater 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 heating device ‘On’ and ‘Off’)
•PROBE CAL (Temperature calibration adjustment)
•MODBUS (Set Baud rate, address and parity for BMS connection)
•FACTORY (Access restricted)
•EXIT
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.

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Touch the ‘UP’ / ‘DOWN’ button keys until the desired language is displayed then touch the ‘O.K’ button
key to select.
UNIT 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’.

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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.
TIMER Setup
After selecting ‘O.K’ for the ‘CLOCK’ setup the display will then revert back to show ‘CLOCK’, touch the
‘UP’ / ‘DOWN’ button keys until ‘TIMER’ is displayed, touch the ‘O.K’ button key to select, ‘TIMER 1’ will
be displayed, touch the ‘O.K’ button key to select and ‘SET TIMER 1 ON’ will be displayed, touch the ‘UP’
/ ‘DOWN’ button keys toset the required time, touch the ‘O.K’ button key to save the setting, ‘SET TIMER
1 OFF’ will be displayed, touch the ‘UP’ / ‘DOWN’ button keys to set the required time, touch the ‘O.K’
button key to save the required time, the display will then show
‘TIMER 2’ repeat the same procedure for all four ‘ON’ / ‘OFF’ timer settings, select ‘EXIT’. If any Timers
are not required set the ‘ON / OFF’ times the same.
The timer mode allows you to set up 4 on and off time periods when you would like heating to take place.
These can be set to take advantage of off-peak energy tariffs, or to ensure your pool is at the required
temperature during specific time periods.
The heater allows you to override the time clock at any point by activating the Priority of Heating Mode
explained on page 15.
NOTE: The time clock will only control the heating time periods and not the filtration pump
cycles.

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Probe Calibration Setup
After selecting ‘EXIT’ for the timer setup the display will then show ‘PROBE CAL’ touch the ‘O.K’ button
key to select, touch the ‘UP’ / ‘DOWN’ button keys to increase or decrease the temperature calibration
adjustment, touch the ‘O.K’ button key to select, the display will then revert back to show ‘PROBE CAL’.
Probe calibration is usually not required. However, should you need to make an adjustment take a
temperature reading from the pool water with an accurate thermometer then adjust as required.
Actual Water Temp
Heater Reading
Adjustment Required
28
30
-2.0
28
26
2.0

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MODBUS Setup
Refer to your BMS Management System manual for the required settings. SET BAUD touch the ‘O.K’
button key to select, ‘MODBUS SET BAUD’ will be displayed, touch the ‘O.K’ button key to select and
‘SET BAUD 19200 Baud’ will be displayed, touch the ‘UP’ / ‘DOWN’ button keys for the other option ‘SET
BAUD 9600 Baud’ touch the ‘O.K’ button key to select the required, Baud rate.
Set Address
Touch the ‘UP’ button and ‘MODBUS SET ADDRESS’ will be displayed, touch the ‘UP’ / ‘DOWN’ button
keys to setthe required address, touchthe ‘O.K’ button key, the display will revert back to show ‘MODBUS
SET ADDRESS’.

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Set Parity
Touch the ‘O.K’ button key to select ‘MODBUS SET PARITY’ and ‘PARITY ODD’ will be displayed touch
the ‘UP’ / ‘DOWN’ button keys to change ‘PARITY ODD’ to ‘PARITY EVEN’ or ‘PARITY NONE’ touch
the ‘O.K’ button key to select the required setting, the display will now revert back to show ‘MODBUS
SET PARITY’ touch the ‘UP’ button key and ‘MODBUS EXIT’ will be displayed, touch the ‘O.K’ button
key to select ‘EXIT’ and the display will show ‘MODBUS’. Touch the ‘UP’ button key and the display will
show ‘FACTORY’ touch again and ‘EXIT’ will be displayed, touch ‘O.K’ and the heater will exit the
‘INSTALLATION’ mode and revert to ‘NORMAL’ mode.
Once configured the MODBUS connection will enable the heater to be switched ‘on’ and ‘off’ (into and
out of standby mode) remotely via an external BMS device.
Standby Operating Mode
When in Standby mode the heater will display the text ‘STANDBY’, Clock time and the Standby button
key (as below).
When in this mode the internal clock continues to run but
there is no other functionality apart from the Standby button
key.

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Normal Operating Mode
Under normal conditions when the heater is connected and ‘On’ and flow has been detected by the flow
switch the heater display will be as shown below indicating the following information:
1. ‘Normal’ and ‘Time’.
2. Actual water temperature.
3. Required temperature.
4. If the flow switch does not detect sufficient flow the message ‘NO FLOW’ will be shown on the
Display.
Timer Mode
To activate the Timer mode, touch the ‘M’ button key until the ‘TIMER’ symbol is displayed (see
below)

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In this mode the heater will only heat during a timed-on period and when receiving sufficient flow.
If no or insufficient flow is being received no heating will take place. When in a timed off period no heating
will take place.
Temperature Display Mode
Select your required temperature (described earlier in this booklet).
The contactors will now click in and the cascade time delay function will begin. In 10-seconds time the first
bank of elements will be switched on and the red coloured thermometer will become animated.
Following a further 10-second delay the secondbank of elements will be switched ‘ON '. Following a further
10-second delay the third bank of elements will be switched ‘ON '. This sequence of staged energisation
(timed energisation) will continue depending on the power output of your heater (see table).
Therefore, the maximum amount of time between the thermometer being animated and all
element banks being switched on and heating is 50 seconds for a 5-bank heater.
NOTE: The number of heating element banks the Titan Optima heater has depends on the
power output of the heater, please refer to the power requirement section earlier in
this manual to check the number of element banks within the Titan Optima heater.
From Initial Power On:
No. of Element Banks
Delay to full Power (Secs)
2
30
3
40
4
50
5
60
Priority of Heating Mode
To activate the ‘Priority of Heating’ mode touch the ‘MODE’ button key until the ‘PRIORITY’ symbol is
displayed, the message ‘FLOW STABILISING’ will be displayed, after two minutes the display will change
to show ‘SAMPLING’ and after a further two minutes the display will change back to ‘PRIORITY’.

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Once the ‘Priority of Heating’ feature has been enabled the heater will take a water temperature sample
every hour and the message ‘SAMPLING’ will be displayed.
If the pool water temperature is below the required temperature, the heater will send a signal to the heating
device to come on until the required temperature is reached. When the required temperature is reached
the heater will switch the heating appliance off, followed by the filtration pump. ‘Pump Delay’ will be
displayed for one hour, then a new water temperature sample will be taken, if the sampled water is at or
above the required temperature no heating will take place and the heater will switch the circulation pump
off (pump delay will be displayed), then one hour later take a new temperature sample.
The sequence will continue to repeat until ‘Priority of Heating’ is switched off.
Priority of Heating and Timer Mode
To activate the ‘Priority’ and ‘Timer’ modes together touch the ‘M’ button key until both symbols and
are displayed.
In this mode the heater will heat whenever it is receiving flow during a timed-on period.
4. TROUBLE SHOOTING
➢Quick Function Test
Observe the main electricity meter when the heater is heating and then observe it again when the heater
is in the standby mode. The test should show that the meter is recording more electricity being used by
the heater when it is heating. It is impossible for an electric heater to waste energy, 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

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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. 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 poolpump 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.
➢Error codes:
TEMP PROBE ERROR/OUT OF RANGE –This will appear if the temperature probe has become
disconnected or the temperature is outside the limit of the probes working temperature 0-100oC.
NO FLOW - This will appear if the flows switch does not detect sufficient flow to activate the heater.
Please refer to page 7 (3.1 Flow requirements.)
Reset Trip –Please refer to the Possible cause 2 below.
PUMP ON ERROR - This will appear only when heater is in Priority of Heating mode. Make sure
that this is the mode required otherwise change to NORMAL mode. In the priority of heating mode
controller is take control off circulation pump and overriding current timer setting. Error message
will appear if controller is not detecting the flow because pump is not wired correctly, one of the
valves in the pipe work is closed or pipe damaged causing the leak.
➢Heater will not switch to ‘Heater on’:
In most cases this will be the result of one of the following not being met:
Possible cause 1: The required water temperature has been achieved.
Remedy: To confirm increase the required temperature more than 0.6°C above the current
water temperature.
Possible cause 2: The ‘thermal safety cut out’ has tripped - this is shown by the backlight of the
screen switching on and off (flashing) and showing the message ‘Reset Trip’.
Remedy: Remove the black button cover and press the red button to reset. If a positive click
is felt, the cause of the tripping must be investigated and could be caused by a
debris build-up or air pocket trapped inside the heater.

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Possible cause 3: Insufficient flow. - if this is the cause the display will show ‘No Flow’.
If using a cartridge filter: Confirm this by running the system with the cartridge
removed from your pump & filter unit, this will supply the heater with the maximum
flow rate that your unit is capable of. If the heater then switches ’On’ a blocked
cartridge can be confirmed to be the cause. The cartridge should be cleaned or
replaced.
If using a sand filter: Check the pressure indicator on your sand filter and back
wash if necessary.
NOTE: In some cases, the thermal safety cut-out tripping and a low flow rate can be linked
i.e.: when a filter becomes choked air can be drawn into the filtration system and
become trapped inside the heater so causing the cut-out to trip.
If using a sand filter: Check the pressure indicator on your sand filter and back wash if necessary.
NOTE: In some cases, the thermal safety cut-out tripping and a low flow rate can be
linked i.e.: when a filter becomes choked air can be drawn into the filtration
system and become trapped inside the heater so causing the cut-out to trip.
➢No light appears 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 is fitted with a 3 Amp glass fuse located on the top control panel
assembly (see Fig 1).
➢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: Contact an Electrician to check installation and protection. Send
heater back to the manufacturer. Use return form on page 25 or
download it from the Elecro website.
➢For any other technical queries and support contact us by email at [e-mail]