background image

15

7.1  Customer service

In case of problems that cannot be resolved 
with the aid of the troubleshooting guide in 
this installation manual, contact either:
A) The installer who supplied the product. 
B) OSO Hotwater UK Tel 01914820800
spares.uk@oso-hotwater.co.uk
www.osohotwater.co.uk

7. WARRANTY CONDITIONS

8. REMOVING THE PRODUCT

8.1 Removal

A) Disconnect the power supply.
B) Shut off incoming cold water supply.

100%

1. Scope

OSO Hotwater UK Ltd. (hereinafter called OSO) warrants for 2 

years from the date of purchase, that the Product will: i) conform 

to  OSO  specification,  ii)  be  free  from  defects  in  materials  and 

workmanship, subject to conditions below. All components carry 

a 2-year warranty. 

The warranty is voluntarily extended by OSO to 25 years for the 

stainless steel inner tank. This extended warranty only applies to 

Products  purchased  by  a  consumer,  that  has  been  installed  for 

private use and that has been distributed by OSO or by a distributor 

where the Products have been originally sold by OSO.

The extended warranty does not apply to Products purchased by 

commercial  entities  or  for  Products  that  have  been  installed  for 

commercial  use.  These  shall  be  subject  only  to  the  mandatory 

provisions of the law. The conditions and limitations set out below 

shall apply.

2. Coverage

If a defect arises and a valid claim is received within the statutory 

warranty period, at its option and to the extent permitted by law, 

OSO shall either; i) repair the defect, or; ii) replace the product with 

a product that is identical or similar in function, or; iii) refund the 

purchase price.

If a defect arises and a valid claim is received after the statutory 

warranty  period  has  expired,  but  within  the  extended  warranty 

period, OSO will supply a product that is identical or similar in 

function. OSO will in such cases not cover any other associated 

costs. In addition, for every year after the statutory warranty period, 

the claimant must contribute 4 % of the list price of the cylinder in 

question to OSO.

Any  exchanged  Product  or  component  will  become  the  legal 

property of OSO. Any valid claim or service does not extend the 

original warranty. The replacement Product or part does not carry 

a new warranty.

3. Conditions

The Product is manufactured to suit most public water supplies. 

However, there are certain water chemistries (outlined below) that 

can have a detrimental effect on the Product and its life expectancy. 

If there are uncertainties regarding water quality, the local water 

supply authority can supply the necessary data.

The warranty applies only if the conditions set out below are met 

in full:

• 

The Product has been installed by a professional installer, in 

accordance with the instructions in the installation manual 

and all relevant Codes of Practice and Regulations in force at 

the time of installation.

• 

The Product has not been modified in any way, tampered 

with or subjected to misuse and no factory fitted parts have 

been removed for unauthorized repair or replacement. 

• 

The Product has only been connected to a domestic mains 

water  supply  in  compliance  with  the  European  Drinking 

Water Directive EN 98/83 EC, or latest version. The water 

should  not  be  aggressive,  i.e.  the  water  chemistry  shall 

comply with the following:

 

- Chloride 

 

 

< 250 mg / L

 

- Electric Conductivity (EC) @25°C 

< 750 uS / cm

 

 -Saturation Index (LSI) @80°C   

> - 1,0 / < 0,8

 

- pH level 

 

 

> 6,0 / < 9,5

• 

The immersion heater has not been exposed to hardness 

levels exceeding 10°dH (180 ppm CaCO3). A water softener 

is recommended in such cases.

• 

Any  disinfection  has  been  carried  out  without  affecting 

the  Product  in  any  way  whatsoever.  The  Product  shall  be 

isolated from any system chlorination.

• 

The  Product  has  been  in  regular  use  from  the  date  of 

installation. If the Product is not intended to be used for 60 

days or more, it must be drained.

• 

Service  and/or  repair  shall  be  done  according  to  the 

installation manual and all relevant codes of practice. Any 

replacement parts used shall be original OSO spare parts.

• 

The  Service  record  /  Benchmark  logbook  has  been 

completed and updated after each annual service. Invoices 

should be kept as proof of service.

• 

The Commissioning Checklist / Benchmark certificate has 

been completed at the time of installation.

• 

Any  third-party  costs  associated  with  any  claim  has  been 

authorized in advance by OSO in writing. 

• 

The purchase invoice and/or installation invoice, a water 

sample as well as the defective product is made available to 

OSO upon request. 

Failure to follow these instructions and conditions may result in 

product failure, and water escaping from the Product.

4. Limitations

The warranty does not cover:

• 

Any fault or costs arising from incorrect installation, incorrect 

application, lack of regular maintenance in accordance with 

the  installation  manual,  neglect,  accidental  or  malicious 

damage,  misuse,  any  alteration,  tampering  or  repair 

carried  out  by  a  non-professional,  any  fault  arising  from 

the  tampering  with  or  removal  of  any  factory  fitted  safety 

components or measures.

• 

Any consequential damage or any indirect loss caused by 

any failure or malfunction of the Product whatsoever.

• 

Any pipework or any equipment connected to the Product.

• 

The effects of frost, lightning, voltage variation, lack of water, 

dry boiling, excess pressure or chlorination procedures.

• 

The effects of stagnant (de-aerated) water if the Product has 

been left unused for more than 60 days consecutively. 

• 

Damage caused during transportation. Buyer shall give the 

carrier notice of such damage.

• 

Costs arising if the Product is not immediately accessible for 

servicing.

• 

These warranties do not affect the Buyer’s statutory rights.

C) Empty the product of water – see section 4.4.
D) Disconnect all pipes.
E)  The product can now be removed.

8.2 Returns scheme

This product is recyclable and should be taken 
to the environmental recycling centre. If the 
product is to be replaced with a new one, the 
installer can take the old cylinder away for re-
cycling.

Summary of Contents for Nano - N

Page 1: ...red by OSO Hotwater AS Industriveien 1 3300 Hokksund Norway Tel 47 32 25 00 00 Fax 47 32 25 00 90 E mail oso oso no www osohotwater com Nano N 5 l EN SAFETY INFORMATION O M INFORMATION INSTALLATION MANUAL TDS TECHNICAL DATA SHEET ...

Page 2: ...2 Included in delivery 6 3 3 Product dimensions 6 3 4 Requirements for installation location 7 3 5 Pipe installation 8 3 6 Electrical installation 10 4 Initial commissioning 12 4 1 Filling with water 12 4 2 Turning on the power 12 4 3 Control points 12 4 4 Emptying of water 12 4 5 Handover to end user 12 5 User Guide 13 5 1 Settings 13 5 2 Maintenance 13 6 Troubleshooting 14 6 1 Faults and fixes 1...

Page 3: ...ey are accessible for fu ture reference The manufacturer assumes compli ance by the end user with the safety operating and maintenance instructions supplied and by the installer with the fit ting manual and relevant standards and regulations in effect at the date of instal lation Symbols used in this manual WARNING Could cause serious injury or death CAUTION Could cause minor or moderate injury or...

Page 4: ... or changed from its original state Children must NOT play with the product or go near it without supervision The product should be filled with water before the power is switched on Maintenance settings should only be carried out by persons over 18 years of age with sufficient understanding CAUTION The product must not be exposed to frost over pressure over voltage or chlorine treatment See warran...

Page 5: ...16 and EN 60335 2 21 as well as other useful data See Declaration of Conformity at www osohotwater co uk for more information OSO products are designed and manufactured in accordance with Pressure vessel standard EN 12897 2016 Safety standard EN 60335 2 21 Welding standard EN ISO 3834 2 OSO Hotwater AS is certified for Quality ISO 9001 Environment ISO 14001 Work environment OHSAS 18001 2 2 Intende...

Page 6: ... out Inner tank and junc tion box with screw holes for hanging are now accessible Fitting the insulation cap 1 Press the front piece into the fasteners 2 Press the two end pieces into place Ensure that the locking mechanisms slide into each other correctly and that the coloured rings red blue indicating HW and CW are posi tioned correctly in the slots Product A B C N 5 200 234 500 Tolerance 5 mm 3...

Page 7: ...sy access to the screw holes D The Nano is attached to the wall with the mount ing band supplied V see illustration The metal band is bent placed around the middle of the tank and fixed to the wall through the holes in the insulation using the screws washers supplied Ensure that the connectors do not press on the insulation parts Use bits of the torx type T25 Tighten the screws until the insulatio...

Page 8: ...he incoming CW pipe D Any overflow pipe 5 1 2 inside should be run to the overflow on the safety valve 4 Connect to 1 2 outside thread Ring clamp connector may be used not included Clear undamaged and frost free with a fall to the drain The product is designed to be permanently con nected to the mains water supply Approved pipes of the correct size should be used for installation The relevant stan...

Page 9: ...d be filled with water before the power is switched on Any overflow pipe from the safety valve MUST be 1 2 mm inside clear undamaged and frost free with a fall to the drain CAUTION The product should be placed in a room with a drain in accordance with the wetroom standard latest TEK Alternatively fit an automatic stop valve with sensor and overflow from safety valve to drain The product should be ...

Page 10: ...n be halved to 1 5 kW by removing the jumpers 5 connecting the two heating pipes to the element The product can then be connected via a 10A fuse Must be done by an authorized electrician 3 6 Electrical installation 3 6 1 Electrical components Component Note Safety thermostat 85 C thermal cut out Work thermostat 40 70 C adjustable Heating element 1 phase 230 V Mains cable with plug Heat resistant I...

Page 11: ... shall comply with current IEE Regulations Immersion Heater rating is 230v x 3kw All internal wiring is factory mounted 3 6 5 Installation instructions 3 6 6 Fitting recommendation WARNING The product should be filled with water before the power is switched on Fixed electric fittings should be used for installation in new homes or when changing an existing electrical setup in accordance with regul...

Page 12: ...er on safety and maintenance instructions Brief the end user on settings and emptying the product Hand this installation manual over to the end user Enter contact details on the type plate on the product WARNING The water temperature in the product may exceed 75 C and could cause scalding Before emptying a hot tap should be opened to the max pressure temperature for min 3 minutes A Disconnect the ...

Page 13: ...ould be carried out by persons over 18 years of age with suf ficient understanding Annual inspection of safety valve Open valve for 1 min by turning the knob 2 approx 90 degrees to the open position Visually check that the water is flowing freely to the drain YES OK Close the valve by turning the knob 2 a further 90 degrees to the closed position NO NOT OK Disconnect power supply shut off water su...

Page 14: ...ectric sup ply b unscrew the cover c visually check whether there is a leak from the heating element If so replace the gasket heating element Contact auth installer No hot water Power supply interrupted Verify that the fuse is on the plug is plugged in to the wall contact the earth breaker has not tripped Thermostat has cut out Press the RESET button on the safety ther mostat see User guide Heatin...

Page 15: ...ny way tampered with or subjected to misuse and no factory fitted parts have been removed for unauthorized repair or replacement The Product has only been connected to a domestic mains water supply in compliance with the European Drinking Water Directive EN 98 83 EC or latest version The water should not be aggressive i e the water chemistry shall comply with the following Chloride 250 mg L Electr...

Page 16: ...r beskyttet av åndsverksloven og skal ikke reproduseres eller distribueres uten skriftlig avtale med produsenten Forandringer forbeholdes This installation manual and all its content is protected by copyright and may be reproduced or distributed only with written consent from the manufacturer We reserve the right to make changes without notice ...

Reviews: