Bluefin LED MR48CCTH User manual

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Bluefin LED Underwater lights.
MR20TH/MRS48CCTH Installation manual.
Thank you for choosing Bluefin LED underwater lights, our products have been designed and tested
rigorously to ensure the optimum performance and longevity.
All Bluefin Led lights are water tested so please be aware there may be moisture present on the light This
light is designed for use on fibre glass hulls only and not to be mounted to any Metal hull or your warranty
will be void. If you are mounting to a Metal hull boat a Delrin isolation sleeve can be purchased.
Please ensure that your product is installed as per our instructions below, failure to do so may invalidate
your warranty.
If you are installing a MR48CCTH please refer to the Driver instructions for electrical installation.
Specs: electrical/fuse ratings
Voltage
Current
Fuse rating
Stingray
MR20TH
24V only (Absolute min of 19V
under load @ light).
24v-5.1Amp
8amp
Warnings:
•Do not attempt to install the lights whilst the boat is in the water.
•Ensure that the correct voltage is used for the light.
•Ensure that an in line fuse is installed with the correct fuse rating per the light installed.
•Ensure that the supplied gel connector is used to make a watertight connection or your warranty
will be Void.
•Do not remove the inline HYDRO LOCK or your warranty will be void.
•Do not hold the light by the cable.
•Do not use abrasives on the lenses.
•Lights must be mounted a minimum of 300mm from any Anodes.
•Do not mount lights directly underneath Anodes.
•Do not bond directly to Anodes.
•Only bond to the vessels DC bonding system & ensure all connections are in perfect condition & are
regularly checked.
•When mounting on any type of conductive surface or hull material full electrical isolation between
the light & mounting surface must be provided & maintained at all times throughout the lights life.
•Failure to adhere to any of these requirements will invalidate warranty.
•As Galvanic currents & corrosion are external factors any type of damage caused by galvanic affects
are not covered by BluefinLEDs warranty policy.
Tools required for installation:
•30mm(1.1/4”) drill bit
•Drill
•Marine sealant 3M 5200/4000UV, Sika flex 291i or equivalent (do not use 3M 4200)
Installation:
For optimum affect effect the light should be positioned between 8-12” (200-300mm) below the water line
and at a 90 deg angle. Recommended spacing from 3-3”(1mtr) to 5-11” (1.8mtrs) between the lights.
Drill a 30mm(1.1/4”) hole for the cable and stem access through the hull, ensuring that there are no
obstructions internally in the hull.

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Key the area to where the light is to be mounted with abrasive sand paper to ensure there is a clean area
for the marine sealant to bond too.
Apply marine sealant to the rear of the light on the circumference of the light and around the base of the
stem to ensure a complete continuous bead of sealant is applied in both areas. (see fig 2)
Feed the cable through the hole and stem and clamp internally in the hull using the clamping ring and
washer supplied ensuring a tight fit using nuts and bolts supplied. (see fig 3)
Wipe off any excess sealant and ensure the light is seated correctly without any gaps in the sealant. (It is
good practice to have excess marine sealant to clean off as this can ensure that there is a water tight seal to
the hull)
Electrical connection:
Ensure you use the IP68 GEL CONNECTOR supplied to connect to the boats wiring or you Warranty will
be void (fig 5/6).
You will notice an inline HYDRO LOCK attached to your cable (Fig 1). If this guard is removed you
warranty will be void
It is advised that if installing MR20 and MR48CC Models no more than 6 lights should be installed on your
low voltage system and Mains Power Units should be installed (contact BluefinLED for advice).
Only attach the light cable to a waterproof connection or junction box, the cable must have a watertight
connection otherwise your warranty will be void.
Care should be taken when planning your electrical feeds/cables to the lights so as to ensure voltage drop
between the batteries or power supply is minimised, on 12V systems this is especially important as the
lower system voltage means a high current requirement which in turn means the potential for more
voltage drop in the cable runs & connections.
If the cable gauge & connections are not sufficient for the lighting load attached you may experience
incorrect operation of the lights & intermittent illumination as the supply dips below specification.
Fig 1
Please see the wire gauge guide which is attached to this manual.
For help with calculations always consult with a qualified professional or contact BluefinLED directly.
Attach the light cable to the VDC power on the boat ensuring that you use the in line fuse supplied
connected to the positive(red) wire, ensure that you use the heatshrink provided to create a water tight fit
into the fuse holder. (See fig 4)
Ensure that an earth bond cable is attached to the earth bolt on the locking ring and is attached to the
earth bonding system on the boat. (See fig 3)
Fig 2
Apply Sealant
around these
grooves and around
the stem

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Fig 3
Fig 4
Fig 5 showing how the Gel connector is wired up.
Fig 6 showing how the finished Gel connector should look when finished.
Ensure that the black outer sheath is inside the gel connector.
The IP68 GEL CONNECTOR MUST BE INSTALLED CORRECTLY OR YOU WARRANTY WILL BE VOID.
Fig 5
Fig 6
Please use fuse
instructions within
the manual to wire
the fuse
Power
In
from
boat
power
Light
cable
Locking ring
showing nuts and
bolts assembled
Earth bond
nut and
bolt
Positive wire
from Light
Heatshrink for
water tight
seal to the
fuse holder
Fuse holder
Negative wire
to boat power
in
Crimps for
positive wires
(ensure that
these are
mounted into
the holder
before they are
crimped)
Image showing how to
wire the Gel Connector to
the light and Fuse holder
Heatshrink
Please ensure
outer sheath is
inside the gel
box

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Testing:
Test the light before installation ensuring that you use the correct voltage and the light is illuminated
correctly.
After installation ensure again that the light is illuminated correctly before the boat goes back into the
water and you remove the lens label.
After you boat goes back into the water check internally for water tightness around where the light is
installed.
The light has internal indicator Led’s for fault finding, these are as follows:
•Over voltage will flash red.(check the voltage to the light)
•Under voltage will show a constant red. (check the voltage to the light)
•Over temperature will show amber.(allow the light to cool down and check if submerged)
Maintenance:
Regularly check the installation for water tightness
Only clean the light with a soft bristle brush
Warranty:
For any warranty issues please contact your point of sale retailer or go to www.bluefinled.com for further
advice.
Bluefin LED LTD warrants the lights/hardware it manufactures and produces to be free from defects in
workmanship and materials for a period of two years, starting from the date of original purchase, as
recorded on the sales receipt.
The warranty is non-transferable and limited to the original purchaser of the product. During the two
year warranty period Bluefin LED will repair or replace the defective item (at its option) at no additional
charge on a “like for like” basis. Products either repaired or replaced under this warranty shall only be
warranted for the unexpired portion of the warranty applying to the original product(s).
Bluefin LED is not responsible for labour charges to remove or replace lights or for haul-out fees. No
refunds will be given.
This limited warranty does not extend to any products which have been damaged as a result of misuse,
abuse, improper installation/modification, galvanic corrosion, failure to follow and adhere to installation
instructions provided by Bluefin LED, improper shipping, neglect, damage caused by disasters such as
fire, flood, lightning “acts of god”, installation by unqualified personnel.
Installer please ensure that the SERIAL NUMBERS of the lights are written below and the manual is
handed over to the end user.
Please make a note of the serial numbers of the lights here.
SERIAL NUMBERS
Bluefin LED
Cottage Farm, Cottage Lane,
Norton Juxta Twycross, Atherstone. CV9 3QH
Sales - Tel: [phone] Email: simon.steadma[email protected]om
Service - Tel: [phone] Email: [e-mail]
Administration - Tel: [phone] Email: samantha.bar[email protected]om
Registered Address: Square Rig Limited, t/a Bluefin LED, Cottage Farm, Cottage Lane, Norton Juxta Twycross, Atherstone, CV9 3QH
Company Registration Number: 08871451 VAT Number: 179 2690 64

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