SunSun CUV-718 User manual

Operation Manual
Stainless Steel Pond Clarifier
CUV-718, CUV-724, CUV-736,
CUV-755, CUV-772, CUV-7110
51603–51608
Illustration similar, may vary depending on model
Read and follow the operating instructions and safety information before using for the first time.
Technical changes reserved!
Due to further developments, illustrations, functioning steps and technical data can differ insignificantly.
Updating the documentation
If you have suggestions for improvement or have found any irregularities, please contact us.

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The information contained in this document may alter at any time without previous notice. It is prohibited
to copy or spread any parts of this document in any way without prior written allowance. All rights re-
served.
The WilTec Wildanger Technik GmbH cannot be held accountable for any possible mistakes in this
operating manual, nor in the diagrams and figures shown.
Even though, the WilTec Wildanger Technik GmbH has undergone biggest possible efforts to ensure
that the operating manual is complete, faultless and up to date, mistakes cannot be entirely avoided.
If you should find a mistake or wish to make a suggestion for improvement, we look forward to hearing
from you.
Send an e-mail to:
[email protected]
or use our contact form:
https://www.wiltec.de/contacts/
The most recent version of this manual in various languages can be found in our online shop via:
https://www.wiltec.de/docsearch
Our postal address is:
WilTec Wildanger Technik GmbH
Königsbenden 12
52249 Eschweiler
Germany
Do you wish to pick goods up? Our pick-up address is:
WilTec Wildanger Technik GmbH
Königsbenden 28
52249 Eschweiler
Germany
To shorten the waiting time and allow for a rapid on-site transaction, we ask you to call us previously or
placing your order via the webshop.
E-mail: [e-mail]
Tel:[phone]
Fax: [phone]
To return orders for exchange, repair or for other purposes, please use the following address. Attention!
To allow for a smooth execution of your complaint or return, it is important to contact our customer
service team before returning the goods.
Returns Department
WilTec Wildanger Technik GmbH
Königsbenden 28
52249 Eschweiler
E-mail: [email protected]o
Tel:[phone]
Fax: [phone]

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Introduction
Thank you for purchasing this quality product. To minimize the risk of injury we urge that our clients
take some basic safety precautions when using this device. Please read the operation instruc-
tions carefully and make sure you have understood its content.
Keep these operation instructions safe.
Safety guideline
BEWARE:
The use of this device is allowed on standing water bodies, garden pond water or swimming ponds and
their surrounding areas only with fault current protection-switch with a triggering nominal current up to
30 mA (according to VDE 0100 Article 702 and 738).
The device is not suitable for use in swimming pools, paddling pools and other water bodies in which
during operation people are present. The operation of the device during the presence of people in the
danger zone is not allowed. Ask your electrician.
The device is not intended for use by persons (including children) with impaired or limited physical,
sensory and mental abilities or lack of experience and/or real knowledge, unless they are supervised by
a person responsible for their safety or follow the instructions made by this person how to use the device
correctly.
Children should be supervised to make sure that they do not play with the device.
ATTENTION:
•Run a visual inspection of the device before every use. Do not use the device if the safety
appliances are damaged or worn out. Never override safety regulations.
•Use the device exclusively according to the intended purpose stated in the instructions for use.
•You are responsible for the safety of the working environment.
•If the cable or the plug is damaged due to external influences, the cable must not be repaired,
but has to be replaced with a new one. This work can be carried out only by an electrician.
•The voltage indicated on the type plate of the device of 230 V AC has to correspond to the
existent mains voltage.
•Never lift, carry or fixate the device by using the power cable.
•Make sure that the electrical plug connection is placed in a flood-proof area and is protected
from moisture.
•Before working on the pond pump, disconnect the appliance by taking the plug out of the socket.
•Avoid exposing the appliance to a direct water jet or rain.
•The user is responsible for the compliance with local safety and installing regulations. Ask an
electrician.
•Consequential damage arising from flooded rooms caused by dysfunctions of the appliance
must be avoided by means of the appropriate measures (e.g., installing an alarm system, re-
serve pump).
•In case of malfunction the repair work can be carried out only by a qualified electrician.
•The appliance must not run dry or with a completely closed intake port.
•The appliance must not be used for swimming pools.
•The device cannot be employed for potable water circuits.
•The UVC filter should be placed so that the water will not submerge it, and it should be at a 2 m
distance from the edge of the pond to the fitter. This equipment cannot be used under the water.
•The device is to be fixed horizontally with screws on a corresponding mounting spot.
•The universal hose connectors are to be shortened in order to have a diameter corresponding
to the one of your hose. Secure the hoses by means of hose clamps.

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•Although UV radiation is the lowest in energy of all ionising radiations, it may be dangerous for
man and other organisms. Even with a larger wavec length, UV radiation is able to destroy the
chemical connection between organic molecules. This is why you should be very responsible
when operating a technical UV radiation source.
•Only operate the tube in a closed housing that is not broken.
WARNING:
Do read all safety instructions and regulations. A lack of compliance with the safety instructions and
regulation may cause electric shock, fire and/or severe lesions.
Keep these instructions for the future.
Resistance
•The temperature of the fluid transported should not exceed +35 ℃in permanent operation.
•This pump is not designed to transport inflammable, gas forming or explosive liquids. This pump
must not be used for other liquids than water, e.g., engine fuels, detergents, and other chemical
products!
Electrical connexion
The electrical connexion is to be made to an isolated ground receptacle of 230 V ~ 50 Hz. Protection at
least 10 A.
Caution:
•The UVC clarifier must be located so that no water may reach it. The distance between the pond
edge and the clarifier should be at least 2 m. The clarifier may not be operated under the water.
•Before the water circulation, the electrical source of the UVC filter cannot be switched on.
•Place the UVC in a steady and safe spot because the UV light tube is made of quartz glass
which easily breaks.
•Before all parts are installed completely, the electrical source cannot be switched on.
•lf the UV light tube or the body shell is broken, the equipment cannot be used.
•When any person is in the water, the UVC cannot be used.
•Make sure that the electrical voltage, frequency used are consistent with the indication on the
UVC station.
•When installing the equipment, the domestic installation regulation should be followed.
•Do not pull the device on its cable, and protect the cable from heat, grease or sharp edges.
•Make sure the maximum pressure of the body shell ensured is less than 0,3 bar.
•When frost is coming, please de-install the UV filter.
•When installing the UV filter, do not expose it to direct sunlight.
•Dirtiness on the quartz tube influences the effect of the equipment; clean the quartz tube in time.
•In order to ensure the effect of the equipment, the UV light tube should be replaced after 8000
operating hours.
•UVC radiation is harmful to the eyes and skin. Please do not look directly into the UVC, and do
not expose your skin to UVC radiation.
•When installing or repairing this equipment, the electrical source of the clarifier and pump must
be switched off.
•The product must be installed horizontally and with the feet down. Other installation positions
are prohibited for safety reason.

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Commissioning
1. When the water is led through the pump and device, this equip-
ment emits a 253.7 nm ultraviolet ray; after a short exposure to
it, most of the bacteria and algae are killed, and thus your fish
can live in a healthy environment.
2. This device does not provide a water pump; please buy a sepa-
rate water pump.
3. Connect the inlet pipe with the outlet of the water pump.
4. Connect the outlet pipe with another filter or the pond.
5. Check after several minutes whether the water circulation has started, and check the sealing
condition of all connectors.
6. Turn on the electrical source, the UV filter begins to work.
Important: Connect the water pump first, and then connect the UV device. Do not run the device without
water. This device will be automatically turned on after the power has been switched on.
When the UV germicidal lamp shows a blue light, it means that the equipment runs normally.
Cleaning, maintenance, and change
Important: In order to guarantee the best filtering performance, replace the UV lamp after working 8000
hours.
1. Turn the head according to the direction of the arrow (Pic A).
2. Take out the head according to the direction of the arrow (Pic B).
3. Take out the UV lamp according to the direction of the arrow, then replace it. (Only allowed to
use the same tube.) Thoroughly clean the inside and outside of the housing (Pic C).
4. Use a screwdriver to unscrew 4 screws (Pic D).
5. Take out the upper bracket according to the direction of the arrow (Pic E).

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6. Take out the quartz glass tube according to the direction of the arrow (Pic F).
7. Using a wet cloth, clean the quartz glass tube from the outside, and inspect it for damage.(Hint:
Use vinegar to clean the quartz glass tube if there is much incrustation.) (Pic G).
Technical data
Model
Item
number
UV
power
(W)
Max.
pond ca-
pacity (ℓ)
Max.
pres-
sure (㍴)
Recommended
flow rate (ℓ⁄h)
Hose connex-
ions (㎜)
Length
(㎜)
CUV-
718
51603
18
25000
1.0
3000
38–50 (1½″–2″)
458
CUV-
724
51604
24
40000
5000
CUV-
736
51605
36
55000
7000
545
CUV-
755
51606
55
65000
8000
684
CUV-
772
51607
2×36
90000
8000
1030
CUV-
7110
51608
2×55
120000
8000
1306

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Explosion view and parts list
№
Name
№
Name
1
Fixing nut
8
Upper bracket
2
Indicator glass
9
Quartz glass part
3
Gasket
10
O-ring
4
Outlet 1
11
M5 screw
5
Outlet 2
12
UV lamp
6
Stainless steel shell
13
UVC device head
7
M5 nut
14
Base
Troubleshooting
Malfunction
Cause
Remedy
Performance of
the unit is not
satisfactory.
Water extremely soiled
Remove algae and leaves from the pond, per-
form a partial water change.
Quartz glass tube soiled
Clean the quartz glass.
UVC lamp capacity exhausted
Replace the lamp after approx. 8000 operating
hours.
UVC lamp does
not light up.
Plug not connected
Put the plug in.
UVC lamp defective
Replace the UVC lamp.
Connection defective
Check the electrical connections.
UVC overheated
Wait until the UVC automatically switches on
when cooled down.

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Disposal regulations
EU guidelines regarding the disposal of scrap electric appliances (WEEE, 2012/19/EU) were imple-
mented in the law related to electrical and electronic equipment and appliances.
All WilTec electric devices that fall under the WEEE regulations are labelled with the crossed-out
wheeled waste bin logo. This logo indicates that this electric equipment must not be disposed with the
domestic waste.
The company WilTec Technik GmbH has been registered in the German registry EAR under the WEEE-
registration number DE45283704.
Disposal of used electrical and electronic appliances
(intended for use in the countries of the European Un-
ion and other European countries with a separate col-
lection system for these appliances).
The logo on the article or on its packaging points out
that this article must not be treated as normal house-
hold waste but must be disposed to a recycling collec-
tion point for electronic and electrical waste equipment.
By contributing to the correct disposal of this article you
protect the environment and the health of your fellow
men. Environment and health are threatened by inap-
propriate disposal.
Material recycling helps reduce the consumption of raw materials.
Additional information on recycling this article can be provided by your local community, municipal waste
disposal facilities or the store where you purchased the article.
Address:
WilTec Wildanger Technik GmbH
Königsbenden 12 / 28
D-52249 Eschweiler
Important notice:
The reprint or reproduction, even of excerpts, and any commercial use, even in part, of this instruction
manual require the written permission of WilTec Wildanger Technik GmbH.