Elecro Engineering B-100 Installation instructions

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B-100 Pool Heater
Installation & Operating Manual

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Important Notes!
Thank you for purchasing the Elecro B-100 direct electric swimming pool
heater manufactured in England to the highest standards.
To ensure your new heater will give years of trouble free service please
carefully read the following instructions. Incorrect installation will
aect your warranty. Do not discard this manual, please retain for future
reference.
Safety!
The appliance is not to be used by children or persons with reduced
physical , sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction.
Children should be supervised to ensure they do not play with the
appliance.
Always switch o the power to the Heater before carrying out any
maintenance.

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Positioning
Your heater should be horizontally sited on a level oor or a suitable shelf
allowing sucient space for pipe connections and wiring.
It must be sited downstream (after) the pump & lter but upstream
(before) any chemical dosing plant.
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Correct
In-Correct

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Flow Requiremnts
The heater should be connected to a ltration system with a minimum
ow volume of 12,000-litres per hour (2,640 UK gallons per hour).
The maximum ow volume the B-100 heater will operate with is
40,000-litres per hour (8,800 UK gallons per hour).
Recommended Flow is 30,000-litres per hour (6,600 UK gallons per hour).
If the ow volume is greater a by-pass must be installed to prevent
damage to the heating elements.
N.B the ow direction is xed and must not be reversed.
Weather Protection
The heater must be installed within a dry weatherproof enclosure.
Caution
If the heater is not used during winter months it must be drained to
prevent frost damage.
Pipe Work
The heater has 63-mm male ABS inlet and outlet spigots for solvent
weld connection, reduction adapter unions are also supplied to allow
connection to 2” pipe work.

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Electrical Connection
The heater must be installed in accordance with the country / regional
requirements & regulations. In any event the work must be carried out by
a qualied electrician, who will provide a certicate of conformity upon
completion of the work.
Power Requirements
All B-100 heaters are tted with their own specication plaque that
details the power requirements for the heater. Below is a table of power
requirements for the most common voltages - if your voltage is not listed
please refer to the specication plaque on the heater.
The below table also shows the number of banks of heating elements
within your heater, each bank of elements is supplied by two
independent contactors.
Model 230V 3 Phase 400V 3 Phase No of Banks
30-kW 30-kW 76-Amp 30-kW 44-Amp 2
36-kW 36-kW 91-Amp 36-kW 52Amp 2
45-kW 45-kW 113-Amp 45-kW 66-Amp 3
54-kW 54-kW 136-Amp 54-kW 78-Amp 3
60-kW N/A 60-kW 87-Amp 3
72-kW N/A 72-kW 104-Amp 3

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Item Description Function
1 ‘P’ button
To display / modify
the required
temperature
2 ‘Down’ button To decrease the
value
3 ‘Up’ button To increase the
value
4 ‘U’ button NOT USED
5
LED-OUT
Continuously
Illuminated
If ashing
Indicates that the
water temperature
has fallen
below the required
temperature.
Indicates that the
unit is in
‘Time Delay Mode’
Temperature Display
The digital thermostat displays the temperature in ºC
When the correct required temperature is displayed, press and release
the P button. The unit will then revert to displaying the current water
temperature, but will now control the water temperature, to a maximum
of the required temperature.
Dierential:
When the water has reached the required temperature the heater will
switch o and will not switch back on until the water temperature has
dropped by 0.6˚C. This value is known as the dierential and is in place to
prevent overheating to the switch components caused by cycling.
Digital Thermostat Instructions
The digital thermostat tted to your pool heater has been pre-programmed
with all the necessary parameters to ensure reliable service and operation.
All you need to do is set the temperature you would like your water to be
maintained at, this is known as the required temperature.
To display / modify the required temperature, press and release the P
button. The pre-programmed required temperature will be displayed.
Press (3)to increase or (2) to decrease the required temperature.
5
2
1
4
3

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Operation Panel Key
Item Number Descreption
1Digital Thermostat
2 Power Indicator
3 Indicates the heating elements are
energised and the unit is heating
4 Indicates the ow volume has fallen below
12,000-litres per hour, or has stopped completely
5 Indicates that:
A = The high limiting thermostat has tripped (re-
quires resetting)
B = The temperature within the electrical cabinet
is above 60˚C (run the ltration pump to reduce
temperature).
6 Safety Thermal Cut Out—Manual reset button
(under black cover)
7 Panel mounted fuse holder - tted with 3-Amp
glass fuse
2 3 4 5 6 7
8

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Operating Your B-100 Heater
Upon completion of the installation, the water-circulating pump should be
run to purge the system & the heater of air (i.e. Remove any trapped air in
the system & heater).
On initial power up of the heater the clear POWER neon indicator should
illuminate and will remain illuminated as long as the power supply to the
heater is switched on.
If after initial power up either the Clear NO / LOW FLOW or Amber
OVER TEMP. TRIP neon indicators are illuminated please proceed to the
troubleshooting section.
Select your required temperature (described earlier in this booklet). The
contactors will now click in and the cascade time delay function will begin.
In 5-seconds time the rst bank of elements will be switched on together
with the red HEATER ON neon indicator. Following a further 5-second
time delay the second bank of elements will be switched ‘ON’. Following a
further 5-second delay the third bank of elements will be switched ‘ON’.
Therefore the maximum amount of time between the red ‘HEATER ON’
neon indicator Illuminating, and all element banks being switched on
and heating is 10-seconds for a 3 bank heater, and 5-seconds for a 2 bank
heater.
N.B - The number of banks your B-100 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 your
B-100 heater.
Trouble Shooting
The Clear NO / LOW FLOW neon indicator is illuminated:
Possible Cause A.) The ow volume through the heater has fallen
below 12,000-litres per hour (2,640-UK gallons per hour) or has stopped
completely.
Solution = Increase the volume of ow through the heater, check for
blockages or if the lter(s) require backwashing.

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Possible Cause B.) The heater has been plumbed incorrectly
Solution = The B-100 heater has a xed ow direction indicated on the
rigt hand manifold that houses the ow switch, ensure that the water has
been plumbed in the correct direction through the heater (ie: entering on
the left and exiting on the right).
The Amber OVER TEMP. TRIP neon indicator is illuminated:
Possible Cause: The Safety Thermal Cut Out has tripped.
Solution = Unscrew the black cover on the front face of the heater, press
the red button, if a positive click is felt it is likely that an air pocket has built
up within the heater and needs to be purged to prevent damage to the
heating elements (see diagram below).
If a positive click is not felt:
Cause: The air temperature within the control enclosure is above 60˚C
to reduce the temperature run the circulation pump for 5 minutes to act
as a heat sink to cool the enclosure - the electrical cabinet thermal cut
out will automatically reset itself when it has cooled to a safe operating
temperature.
N.B - The Amber OVER TEMP. TRIP neon indicator will only ever illuminate
when the set point is above the current water temperature (i.e. you would
like the heater to heat) this is to inform the operator that there is an issue
that needs to be resolved before heating can take place. If the water
temperature is above the set point temperature the Amber OVER TEMP.
TRIP neon indicator will not illuminate.
None of the neon indicators illuminate when the heater is switched on:
Possible Cause A.) An external fuse / RCD / GFCI has tripped.
Solution = Check all external fuses to ensure power is arriving at the heater.
Possible Cause B.) The B-100 heater fuse has blown.
Solution = Check the panel mounted fuse in the operation panel. Using
a at blade screwdriver carefully rotate the inner fuse holder counter
clockwise to release the fuse holder in order to check the fuse. If this has
blown please replace with a suitable glass 3-Amp fuse.
The Amber OVER TEMP.
TRIP neon indicator only
illuminates when the set
point is above the water
temperature.

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Water Quality
The water quality must be within the following limits:
PH 6.8 - 8.0, TA (Total alkalinity) 80—140ppm (parts per million)
Chloride Content MAX: 150 mg/litre
Free Chlorine: 2.0 mg/litre
Total Bromine: Max 4.5 mg/litre
TDS (Total Dissolved Solids) / Calcium hardness 200— 1,000ppm
Stainless Steel heaters are NOT suitable for use on saline (salt) water pools.
B-100 heaters with Titanium elemens are suitable for use with salt water
pools with a salt concentration up to 8000ppm (8g/litre).
Water chemistry is complicated if in doubt seek expert advise.
RoHS Compliance Statement
Elecro Engineering Limited certify that our Electric Swimming Pool Heater
Range complies in accordance with RoHS Directive 2011/65/EC on the
restriction of hazardous substances.
Waste of Electrical / Electronic Equipment
This product complies with EU directive 2012/19/EC
Do Not dispose of this product as unsorted municipal waste.
This symbol on the product or on its 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 oce, your household waste disposal service or the
retailer where you purchased the product.
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Guarantee
Your heater is guaranteed for 1 year from the date of purchase against
faulty workmanship and materials.*
*regional variations apply
The manufacturer will replace or repair, at it’s 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, inapropriate use or neglect of
the heater.
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