Elecro Engineering HR-55 Installation instructions

H.R.UV-C CLASSIC
Installation & Operating Manual
HR-55 HR-110
ENGLISH

CONTENTS
1. IMPORTANT SAFETY INSTRUCTIONS...........................................................................................3
2. PRODUCT OVERVIEW ....................................................................................................................3
3. GENERAL INSTALLATION INSTRUCTION.....................................................................................4
3.1 Mounting instructions......................................................................................................................4
3.2 Pipe work......................................................................................................................................5
3.3 Flow direction................................................................................................................................7
3.4 Connection .....................................................................................................................................8
3.6 Electrical connection.......................................................................................................................9
4. OPERATING INSTRUCTIONS .........................................................................................................9
4.1 Flow requirements..........................................................................................................................9
4.2 Lamp life indicator...........................................................................................................................9
4.3 Water quality.................................................................................................................................10
5. MAINTENANCE..............................................................................................................................10
5.1 Essential parts to carry out annual maintenance including our reference codes ...........................10
5.2 Lamp replacement and quartz sleeve cleaning.............................................................................11
6. DISPOSAL OF ELECTRICAL/ELECTRONIC EQUIPMENT...........................................................13
7. WARRANTY...................................................................................................................................14

3
Introduction
Thank you for purchasing the H.R. UV-C pool sanitising system, 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.
Please retain this manual for future reference.
1. IMPORTANT SAFETY INSTRUCTIONS
WARNINGS:
•Ultraviolet light is damaging to your eyes or skin! Never handle or look directly at an
illuminated UV lamp(s).
•This unit must be earthed.
•Power must be supplied through a Residual Current Device (RCD) with a rated residual
operating current not exceeding 30mA
•Do not run this unit dry
•Do not cover this unit
•The unit must not be submerged in water
•Carefully examine the unit after installation. It should not be powered on if there is water
on any parts not intended to be wet
•If the unit shows any sign of water leakage immediately disconnect power supply
•If the quartz sleeve is cracked, replace it immediately
•To avoid injuries young children should never be allowed near UV sanitizer
•Failure to disconnect the power from the UV sterilizer and pump before servicing or
maintenance could result in personal injury or property damage.
2. PRODUCT OVERVIEW
The H.R.UV-C is available in 55W single tube and 110W double tube formats, supplied complete
with flow switch and either an analogue lamp life indicator and reset switch, or digital lamp life
countdown with intelligent dosing pump.
Fig. 1 Fig. 2

Dimensions:
3. GENERAL INSTALLATION INSTRUCTION
3.1 Mounting instructions
The H.R.UV-C should be either installed horizontally or vertically allowing enough space for the pipe
connections, wiring and maintenance of lamps/quartz sleeve. It should be firmly secured, using the fixing
kit provided, to a solid wall.
NOTE: When mounting the UV, it is essential to leave a clearance space of at least 1 metre
from one side of the unit to allow access to replace the lamp(s) and/or quartz
sleeve(s) when required. Both the lamps and the quartz sleeve can be replaced
from either end of the unit; if installing vertically the 1m clearance space must be
above or below the unit, if installing horizontally the 1m clearance space must be to
the left or right of the unit.
WARNING: The H.R.UV-C 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 H.R.UV-C is unused during the winter months; it must be drained to prevent frost
damage. Water must not be allowed to freeze inside the unit as this will cause severe
damage.

5
See Fig. 3 for mounting instructions when securing to the wall.
3.2 Pipe work
The H.R.UV-C should be placed downstream (after) of any pumps, filters and heating devices but
upstream (before) of any chemical dosing or similar water treatment (see Figs.4 and 5).
Fig. 3

Fig. 4
Fig. 5

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3.3 Flow direction
The H.R.UV-C is factory set to accept input water flow entering on the left and exiting on the right,
this can be reversed by rotating the flow switch 180 degrees (i.e. ½ turn - see Fig. 6).
Fig. 6

WARNING: The flow switch paddle can be damaged when reversing the flow direction if it is
lifted by more than 5mm from its housing and turned with force. If the flow switch
has been rotated it is important to ensure that it is finally locked in the correct
orientation perpendicular (at right angles) to the flow of water.
3.4 Connection
The unit is supplied with unions to allow connection to 2" or 63-mm rigid pipe. Reducers are also supplied
to allow connection to 50-mm or 1½" rigid pipe - see Fig. 7.
For pipework 63-mm or 2” in diameter.
For pipework 50-mm or 1½“ in diameter.
Fig. 7
All factory unions are made from ABS plastic, when gluing connections to ABS pipe an ABS cement must
be used or when using PVC pipe, a Transition cement must be used (See Fig. 7).
There is no need to use mastic or PTFE tape to connect unions to the H.R.UV-C, use the O-rings provided
to put in the groove on the end of the Manifold Assembly.
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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3.6 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 H.R.UV-C 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.
•Never look directly at an illuminated UV lamp.
4. OPERATING INSTRUCTIONS
4.1 Flow requirements
Minimum flow rate:
•4m3/hour (4,000 litres per hour)
Maximum flow rate:
•55W (single tube) = 21m3/hour (21,000 litres per hour)
•110W (double tube) = 48m3/hour (48,000 litres per hour)
•A higher flow rate will require the installation of a bypass to prevent damage to the unit.
This unit is a plug and play device so as long as the minimum flow rate is achieved the unit will work as
soon as the power is switched on.
4.2 Lamp life indicator
Under normal conditions the UV lamp(s) inside the unit has a usable life of 9,000 hours. The unit is fitted
with a ‘Lamp Life Indicator’ LED in order to remind you to change the lamp(s) after this set period of time.
At initial ‘Power On’ of the H.R.UV-C the LED indicator will light in a Red colour for one second to indicate
that the time setting is 9,000 hours and immediately change colour to Green to indicate that the timer has
started.
When the timer reaches <500 hours the LED indicator will change colour from Green to Amber to indicate
that the UV lamp(s) is getting near to its end of life. At this point replacement lamp(s) should be ordered
from your distributor. When the timer reaches zero the LED indicator will change colour from Amber to
Red, to signal that the UV lamp(s) should be changed.
After changing the UV lamp(s) the timer is reset by pressing and holding the reset button until the LED
indicator goes ‘Off’ and then comes back ‘On’. When the reset button is released the LED indicator will
come back ‘On’ (Red colour for one second followed by Green colour), this indicates that the timer has
restarted and is reset to count down the subsequent 9,000 hours.

4.3 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
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).
5. MAINTENANCE
To avoid any water leaks and optimum performance annual maintenance of the UV steriliser is
essential. Failure to do so could result in damage to the product and significant drop in efficiency.
Annual maintenance includes:
•Changing of lamps(s) if necessary. Fig. 1
•Inspection and cleaning of quartz sleeve. Replace if any cracks are discovered. Fig. 2
•Replacing all O-rings. Fig. 3
•Replacing lamp connectors (white plastic insert inside the blue lamp shroud) if corroded, wet,
damaged or overheated. Fig. 4
5.1 Essential parts to carry out annual maintenance including our reference codes
WARNING: Before performing any maintenance isolate from the main power supply, turn off
circulation pump and drain the unit.
SP-UV-LAMP-EL SP-UV-QS
Fig. 1 Fig. 2
SP-UV-ORS SP-UV-LLL-LF
Fig. 3 Fig. 4