Delta Inox DI 300 l - Water heater OSO - Free user manual and instructions

Technical specifications	Capacity: 300 liters, Material: Stainless steel, Type: Thermodynamic water heater
Usage	Designed for domestic hot water production, ideal for medium-sized households.
Maintenance and repair	Annual anode check, tank cleaning recommended every 5 years.
Safety	Equipped with a safety valve, compliant with current safety standards.
General information	Warranty: 5 years on the tank, professional installation recommended.

Frequently Asked Questions - Delta Inox DI 300 l OSO

What is the volume of the OSO Delta Inox DI?

The OSO Delta Inox DI has a volume of 300 liters.

What type of material is used for the OSO Delta Inox DI?

The OSO Delta Inox DI is made of stainless steel, making it corrosion resistant.

How to install the OSO Delta Inox DI?

To install the OSO Delta Inox DI, follow the instructions provided in the installation manual or consult a qualified professional.

What is the maximum operating temperature of the OSO Delta Inox DI?

The OSO Delta Inox DI can operate at a maximum temperature of 85\u00b0C.

How to maintain the OSO Delta Inox DI?

To maintain the OSO Delta Inox DI, regularly clean its exterior with a soft cloth and avoid abrasive products.

What to do if the OSO Delta Inox DI does not heat water?

If the OSO Delta Inox DI does not heat water, check the electrical connections and ensure the thermostat is set correctly.

Is the OSO Delta Inox DI covered by a warranty?

Yes, the OSO Delta Inox DI is generally covered by a multi-year warranty; please check the specific details provided at purchase.

Where can I buy spare parts for the OSO Delta Inox DI?

Spare parts for the OSO Delta Inox DI can be purchased from authorized dealers or on the manufacturer\'s official website.

What is the weight of the OSO Delta Inox DI?

The OSO Delta Inox DI weighs approximately 60 kg.

How to know if the OSO Delta Inox DI is in heating mode?

The OSO Delta Inox DI has an indicator light that turns on when the device is in heating mode.

USER MANUAL Delta Inox DI 300 l OSO

Exterior view of a stainless steel water heater (no signage or text visible on body)

INNHOLDSFORTEGNELSE

1. Sikkerhetsinstruks.... 3

Line drawing of a water heater with warning symbol and warning label (no text or symbols on main body)

Diagram of a device with numbered parts for identification and assembly reference

A B C D Ø

3.3.1 Inntransport

Three stylized human figures carrying rectangular blocks, no text or symbols present

Technical diagram of a circular mechanical or electrical component with labeled parts 1 and 2, showing internal structure and connections.

3.6El-installasjon

Recycling symbol composed of three chasing arrows forming a triangle (no text or labels)

Delta Inox - DI

200-300 l.

SV

Exterior view of a stainless steel water heater (no signage or text visible on body)

SÄKERHETSINFORMATION

FDV INFORMATION

MONTERINGSANVISNING

TDS – TECHNICAL DATA SHEET

INNEHÅLLSFÖRTECKNING

1. Säkerhetsinstruktioner.... 3

Line drawing of a water heater with warning symbol and warning label (no text or symbols on main body)

Diagram of a device with numbered parts for identification and assembly reference

A B C D Ø

3.3.1Intransport

Three stylized human figures carrying large rectangular blocks, no text or symbols present

Diagram of a circular device with labeled parts and directional arrows, showing internal components and connections.

3.6Elinstallation

Diagram of a cylindrical object with internal striped pattern and curved arrows indicating rotation or movement (no text or symbols)

4.4 Kontrollpunkter

Recycling symbol composed of three chasing arrows forming a triangle (no text or labels)

Delta Inox - DI

200-300 l.

EN

Exterior view of a stainless steel water heater with visible branding (OSO HOT WATER) and no other text or symbols on the body.

SAFETY INFORMATION

O&M INFORMATION

INSTALLATION MANUAL

TDS - TECHNICAL DATA SHEET

CONTENTS

1. Safety instructions.... 3

1.1 General information 3
1.2 Safety instructions for users.... 4
1.3 Safety instructions for installers 4

2. Product description.... 5

2.1. Product identification 5
2.2. Intended use.... 5
2.3 CE marking 5
2.4 Technical data.... 5
2.5. ErP data (TDS) 5

3. Installation instructions.... 6

3.1. Products covered by these instructions 6
3.2. 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. Setting the mixer valve 12
4.4 Control points.... 12
4.5. Emptying of water 12
4.6. 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.... 14

7. Warranty conditions.... 15

7.1. Warranty and registration.... 15
7.2. Customer service.... 15

8. Removing the product.... 15

8.1. Removal 15
8.2. Returns scheme.... 15

1. SAFETY INSTRUCTIONS

1.1 General information

• Read the following safety instructions carefully before installing, maintaining or adjusting the water heater.
• Personal injury or material damage may result if the product is not installed or used in the intended manner.
• Keep this manual and other relevant documents where they are accessible for future reference.
• The manufacturer assumes compliance (by the end-user) with the safety, operating and maintenance instructions supplied and (by the installer) with the fitting manual and relevant standards and regulations in effect at the date of installation.

Line drawing of a water heater with warning symbol and warning label (no text or symbols on main body)

Symbols used in this manual:

⚠ WARNING	Could cause serious injury or death
⚠ CAUTION	Could cause minor or moderate injury or damage to property
∅	DO NOT
#!	DO

This document should be kept in a suitable place where it is accessible for future reference.

1.2 Safety instructions for users

⚠ WARNING
∅	The overflow from the safety valve must NOT be sealed or plugged.
∅	The product must NOT be covered over the cover on the front.
∅	The product must NOT be modified 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 warranty provisions.
∅	Maintenance/settings should not be carried out by persons of diminished physical or mental capacity, unless they have been instructed in the correct use by someone responsible for their safety.

1.3 Safety instructions for installers

⚠ WARNING
∅	The overflow from the safety valve must NOT be sealed or plugged.
!	Any overflow pipe from the safety valve MUST be ≥ 18 mm inside, clear, undamaged and frost-free with a fall to the drain.
!	Fixed electric fittings should be used for installation in new homes or when changing an existing electrical setup in accordance with regulations. A mains cable with plug for wall socket can be used when replacing the product without changing the electrical setup.
!	The mains cable should withstand 90°C. A strain reliever must be fitted.
!	The product should be filled with water before the power is switched on.
!	The relevant regulations and standards, and this installation manual, must be followed.

⚠️ 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.Liability for consequential damage will only apply if this is followed.
💡	The product should be properly aligned vertically and horizontally, on a floor or wall suitable for the total weight of the product when in operation. See type plate.
💡	The product must have a clearance for servicing of 40 cm in front of the cover / 10 cm over the mixer valve.

2. PRODUCT DESCRIPTION

2.1 Product identification

Identification details for your product can be found on the type plate fixed to the product. The type plate contains details of the product in accordance with EN 12897:2016 and EN 60335-2-21, as well as other useful data. See Declaration of Conformity at www.osohotwater.com 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 Intendeduse

Delta Inox is designed to supply homes with hot running water. The product is suitable for installation in tough environments such as barns, stables, etc.

2.3CEmarking

CE

The CE mark shows that the product complies with the relevant Directives. See Declaration of Conformity at www.osohotwater.com for more information.

The product complies with Directives for:

• Low voltage LVD 2014/35/EU
  • Electromagnetic compatibility EMC 2014/30/EU
• Pressurised equipment PED 2014/68/EU

The safety valve(s) used must be CE marked and conform to PED 2014/68/EU.

2.4 Technicaldata

NRF no.	Product code:	Capacity, persons	Weight, kg.	Dia. x Height, mm	Freight vol. m^3	Heating time, hours t 65°C	Heat loss W
800 0402	DI 200-3 kW/1x230V 4.0 39 ø595 x 1270 0.46	5.0 48
800 0404	DI 300 kW/1x230V	5.0	51	ø595 x 1750	0.62	7.3	64
800 0406	DI 300 kW/3x400V	5.0	51	ø595 x 1750	0.62	7.3	64

2.5 ErP data - Technical Data Sheet

Brand	Model-no.	Model name		ErP profile	ErP rating	Energy eff. %	AEC - kWh/a	Thermo-stat setting °C	Volume 40°C water
OSO Hotwater AS	800 0402	DI 200 - 3 kW		XL	D	37	4,501	75	317
OSO Hotwater AS	800 0404	DI 300 - 3 kW		XL	D	37	4,557	75	471
OSO Hotwater AS	800 0406	DI 300 - 3 kW		XL	D	37	4,557	75	471
Directive: 2010/30/EU Regulation: EU 812/2013			Directive: 2009/125/EC Regulation: EU 814/2013
Efficiency-tested according to standard: EN 50440: 2015

3. INSTALLATION INSTRUCTIONS

3.1 Products covered by these instructions

800 0402 Delta Inox - DI 200 - 1x230V

800 0404 Delta Inox - DI 300 - 1x230V

800 0406 Delta Inox - DI 300 - 3x400V

3.2 Included in delivery

Ref no.	Number of	Description
1	1 Mixer valve (supplied)
2	1 Water heater
3	1 Installation manual (this document)
4	1 Thermostat
5	1 Heating element
6	1 Safety valve (factory-fitted)
7 3	Feet (factory-fitted)

3.3Productdimensions

All dimensions in mm.

Product.	A	B	C	D
DI 200	0	-40	133	6	1321	154	595
DI 300	0	-40	181	6	1801	154	595

Tolerance +/- 5 mm (not dimension A).

Diagram of a device with numbered parts for identification and assembly reference

A B C D Ø

3.3.1 Delivery

The product should be transported carefully as shown, with packaging. Use the handles in the box.

CAUTION

Pipe stubs, valves etc. should not be used to lift the product as this could cause malfunctions.

Three stylized human figures carrying large rectangular blocks, no text or symbols present

3.4 Requirements for installation location and positioning

⚠️ 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 placed in a dry and permanently frost-free position.
💡	The product should be placed on a floor or wall suitable for the total weight of the product when in operation. See type plate.
💡	The product must have a clearance for servicing of 40 cm in front of the cover / 10 cm over the mixer valve.
💡	The product should be easily accessible in the home for servicing and maintenance.

Min. 40 cm Min. 10 cm Min. 40 cm

3.5 Pipeinstallation

The product is designed to be permanently connected to the mains water supply. Approved pipes of the correct size should be used for installation. The relevant standards and regulations must be followed.

Product. CW	HW Overflow (2)
DI 200 - 300	1/2" / ø15 mm ring clamp	1/2" / ø15 mm ring clamp	3/4" internal

3.5.1 Incoming water pressure

The efficiency of the product depends on the incoming cold water pressure. The water pressure should be min. 2 bar and max. 6 bar throughout the day. Excessive water pressure can be adjusted by installing a pressure reduction valve.

3.5.2 Fitting cold and hot water pipes (CW-HW) and overflow pipes

A) Turn the mixer valve to the desired position.

- Tighten ring clamp to the cylinder (see 3.5.3)

B) CW and HW pipes of a suitable size should be run to the mixer valve and tightened (see 3.5.3)

- For larger pipes, a connector with a 1/2" internal thread can be used.

C) Overflow pipe (1) ≥ 18 mm inside run to the safety valve;

- Connected to waste 3/4" internal thread.

- Clear, undamaged and frost-free with a fall to the drain.

3.5.3 Torque settings

Component	Torque
Ring clamp connection to CW/HW (ø15)	40 Nm (+/- 3)
Ring clamp connection to cylinder (ø22)	60 Nm (+/- 5)

360°

SV 2 N 2 1 1

3.5.5 Fitting instructions

⚠ WARNING
💡	The product should be filled with water before the power is switched on.
💡	Any overflow pipe from the safety valve must be ≥ 18 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 properly aligned vertically and horizontally, on a floor or wall suitable for the total weight of the product when in operation. See type plate.
💡	The product must have a clearance for servicing of 40 cm in front of the cover / 10 cm over the mixer valve.

3.5.6 Installation recommendation

RECOMMENDATION
-	Allow clearance to the floor. Screw the feet out a minimum of 15 mm from the bottom of the product.
-	Overflow pipe from the safety valve to the drain (1) and mains cable for wall socket (2) should be hidden under the channels in the bottom of the product.
-	If the non-return valve is tight, a reduction valve and expansion vessel should be fitted (to stop dripping from the safety valve).
-	If the maximum water pressure exceeds 6 bar in a 24-hour period, a reduction valve and expansion vessel should be fitted.
-	For installation in a rooms which does not conform to the wetroom standard, a watertight drip tray with overflow pipe ≥ 18 mm. inside diameter should be fitted under the product, in addition to an automatic stop cock with sensor. This will prevent possible material damage.

Technical diagram of a circular mechanical or electrical component with labeled parts 1 and 2, showing internal structure and connections.

3.6 Electricalinstallation

Fixed electric fittings should be used for installation in new homes or when changing an existing electrical setup in accordance with regulations. A mains cable with plug for wall socket can be used when replacing the product without changing the electrical setup. Any fixed electric fittings must be installed by an authorised electrician. The relevant standards and regulations must be followed.

3.6.1 Electrical components

Component Note
Safety thermostat 98°C ther	mal cut-out
Work thermostat 60-90°C adjustable
Heating element	1-phase 230 V
Mains cable with plug Heat-resistant
Internal wires	Heat-resistant

3.6.2 Electrical connections in the junction box

WARNING

Constant voltage present at terminals R and S. Before any electrical work is done, the power supply must be disconnected and secured against activation while the work is in progress.

A) Blue wire (R) – Neutral – connected to point '1' on the safety thermostat.
B) Brown wire (S) – Live – connected to point '3' on the safety thermostat.
C) Yellow wire with green stripe Earth – connected to the terminal for the heating element (hexagonal brass)
D) Internal wires from the element to the thermostat are connected to point '4' on the safety thermostat and point '2' on the work thermostat. See illustration.

3.6.3 Torque settings

Component Torque
5/4" heating element 60 Nm (+/-)	5)
Thermostat screws 2 Nm (+/- 0.1)
Screw on the element head 2 Nm (+/- 0.1)

R 1 3 S RESET RS 2 4 1 11110K5-80C 2 60°C 80°C 70°C ±

Electrical connection, diagram

3.6.4 Fitting instructions

⚠ 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 regulations. A mains cable with plug for wall socket can be used when replacing the product without changing the electrical setup.
💡	The mains cable should withstand 90°C. A strain reliever must be fitted.

⚠️ CAUTION
💡	The product must have a clearance for servicing of 40 cm in front of the cover / 10 cm over the mixer valve.
💡	In case of damage to the mains cable and plug, it should be replaced with a specially adapted mains cable from the manufacturer.

3.6.5 Fitting recommendation

RECOMMENDATION
-	The mains cable supplied should be used with fixed electric fittings by removing the plug for the wall socket. (Heat-resistant)
-	Mains cable for wall socket/wall box should be hidden under one of the channels in the bottom of the product.
-	For products with ≤ 2kW capacity, a ≥ 10A fuse / ≥ 1.5# wire should be used*. For products with ≤ 3kW capacity, a ≥ 15A fuse / ≥ 2.5# wire should be used (230V).

4. INITIAL COMMISSIONING

4.1 Filling with water

First check that all pipes are connected correctly. Then proceed as follows:

A) Open a hot tap – leave it open
B) Turn the adjustable knob on the mixer valve all the way to '+'.
C) Open the cold water supply to the product.

Check that the water from the open hot water tap is flowing freely, without any air locks.

A) Close hot tap.

4.2 Turning on the power

When the cylinder has been filled with water, the power can be switched on.

A) Insert plug into specified wall socket or turn on switch/breaker.

4.3 Setting the mixer valve

The outgoing hot water temperature from the product to the taps in the home can be adjusted with the knob on the mixer valve. Adjusting the mixer valve does not affect the temperature of the hot water in the product.

To adjust the temperature:

A) Turn the adjustable knob (1) all the way to '+'
B) Then turn the knob towards '-' to the desired temperature.

Turns Temperature
0 Approx. 70°C
1/4 Approx. 60°C
1/2 Approx. 50°C
3/4 Approx. 40°C

4.4 Control points

A) Check that all pipe connections to/from the product are tight and not leaking.
B) Check that the power supply to the product is not at risk of exposure to mechanical, thermal or chemical damage.
C) Check that any overflow pipe from the safety valve is clear, undamaged and frost-free with a fall to the drain.
D) Check that the product is standing firmly vertically and horizontally.

4.5 Emptying of water

⚠ 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 power supply.
B) Shut off incoming cold water supply.
C) Open a hot tap to the maximum – leave open (prevents a vacuum).
D) Open the mixer valve all the way to '+'.
E) Twist the knob on the safety valve (2) approx. 90 degrees to the open position.
Product emptied.

3 2

After emptying, close the safety valve by turning the knob (2) further clockwise. Close all open taps. Adjust the mixer valve to its original setting.

If the tank needs to be emptied faster, the safety valve can be removed by unscrewing the clamping rung connector to the waste pipe. When re-fitting, the ring clamp connection should be tightened to 60 Nm torque (+/-5).

4.6 Handover to end-user

THE INSTALLER MUST:

Brief the end-user 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.

5. USER GUIDE

5.1 Settings

5.1.1 Thermostat setting

The thermostat on the product is adjustable from 60-90°C. The thermostat should not be set lower than 65°C to prevent bacteria growth. To adjust the temperature:

A) Disconnect the power supply.
B) Remove the cover (3) low down on the front with a screwdriver.
C) Adjust the temperature on the thermostat (5) with a screwdriver.

Fit the cover (3) before connecting the power supply. Changing the temperature setting on the thermostat only changes the temperature of the water in the tank. Temperature to the taps is adjusted on the mixer valve.

5.1.2 Resetting the safety thermostat

The safety thermostat on the product cuts out when there is a risk of overheating. This is reset by removing the cover (3) and pressing the red 'RESET' button (4). If the thermostat cuts out repeatedly, contact the installer.

5.1.3 Setting the mixer valve

The outgoing hot water temperature from the product to the taps in the home can be adjusted with the knob on the mixer valve. To adjust the temperature:

A) Turn the adjustable knob (1) all the way to '+'
B) Then turn the knob towards '-' to the desired temperature.

5.1.4 Adjusting the feet

The product is equipped with three factory-fitted feet, adjustable from 0-40 mm. Screw the feet out a minimum of 15 mm from the bottom of the product. Adjust the feet individually until the product is standing firmly vertically and horizontally.

WARNING

Constant voltage present in the junction box. Before any electrical work is done, the power supply must be disconnected and secured against activation while the work is in progress.

1 3 4 RESET RESET 2 4 2 5 60°C 90°C 80°C 70°C

Turns Temperature
0 Approx. 70°C
1/4 Approx. 60°C
1/2 Approx. 50°C
3/4 Approx. 40°C

5.2 Maintenance

MAINTENANCE INSTRUCTIONS
!	Maintenance should be carried out by persons over 18 years of age, with sufficient 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 supply. Contact installer.

6. TROUBLESHOOTING

6.1 Faults and fixes

If problems arise when the product is in use, check for possible faults and fixes in the table. If the problem is not shown in the troubleshoot-

ing table or you are unsure what is wrong, contact the installer (see type plate on the product) or OSO Hotwater AS - see section 7.2.

TROUBLESHOOTING
Problem Possible cause of	fault Possible solution
There is leakage/dripping from the safety valve/ there is often water on the floor by the cylinder in the morning	Pressure reduction valve, water meter or blocked non-return valve on the water intake.Water pressure into the home is too high.	Fit AX expansion vessel with absorbs expansion during heating, and fit pressure reduction valve for stable water pressure inside the home. The pressure reduction valve is adjusted in according to the pressure in the expansion vessel. Contact auth. installer.
	The safety valve is worn or there are particles stuck between the membrane and the valve seat because the water is dirty	Try to flush with water through the safety valve. Open valve for approx. 1 minute. See section 5.2. If the valve still leaks, it must be replaced. Contact auth. installer.
	Leak from heating element.	Verify as follows: a) cut the electric supply, 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 thermostat; see 'User guide'.
	Heating element is defective.	Replace heating element. Contact auth. installer.
	Leak in hot water pipe	Verify as follows: a) close the mixer valve, b) wait 2-3 hours, c) feel the mixer valve to see whether it is hot. If so, there is a leak in the hot water pipe or elsewhere. Contact auth. installer.
Not enough hot water High consumption in the home.		Raise the temperature on the thermostat to 85°C; see 'User guide'.Switch to a larger OSO water heater. Contact auth. installer.
Not high enough temperature	The mixer valve is set for low temperatures.	Raise the temperature on the mixer valve; see 'User guide'.
	The thermostat is set for low temperatures.	Raise the temperature on the thermostat to 85°C; see 'User guide'.
	Change from cold to hot water in taps.	Contact auth. installer.
Fuse/earth breaker trips repeatedly	Possible fault in the heater's electrical system.	Verify as follows: a) cut the electric supply, b) unscrew the cover, c) visually check the junction box for any problems. If so, contact auth. installer to check. Fit the cover.
Long time before the water reaches the tap	Long stretch of pipe from water heater to tap.	Fit circulation wire or heating cable to HW pipe. Or fit an auxiliary heater by the tap. Contact auth. installer.
Knocking in the pipes when the hot tap is closed	Large pressure increase when the tap is closed quickly.	Completely normal. Fit AX expansion vessel if troublesome. Contact auth. installer.

7. WARRANTY CONDITIONS

WARRANTY CONDITIONS
Your OSO product is guaranteed free from material or production faults. We are proud of our products and offer the best warranty conditions on the market.
1	Your basic OSO warranty covers the product and replacement cost of the pressure tank for 5 years from the date of purchase, provided that the product:
!	Is easily accessible in the home for servicing and maintenance.
!	Has been installed according to the fitting instructions, and the safety instructions have been followed.
∅	Has not been connected to a drinking water supply with a chlorine content of over 50 mg/L. At levels over 50 mg/l, the anode should be fitted before filling with water.
∅	Has not been exposed to frost, over-pressure, over-voltage or chlorine treatment.
∅	Has not been modified, changed or exposed to external or abnormal effects.
2	Your extended OSO warranty covers the product cost of the pressure tank for 10 years from the date of purchase, provided that the product also:
!	Has been bought from, and installed by, an authorised installer/plumber.
3	Replacement components are guaranteed free from material and production faults for 2 years from the date of purchase, provided that the product:
∅	Has not been connected to a drinking water supply with a lime content of over 35 mg/L (5°dH).

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 AS: Tel.: [phone]

[e-mail] / www.oso.no

8. REMOVING THE PRODUCT

8.1 Removal

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

Recycling symbol composed of three chasing arrows forming a triangle (no text or labels)

Delta Inox - DI

200-300 |

FR

Exterior view of a stainless steel water heater (no signage or text visible on body)

INFORMATIONS DE SÉCURITÉ INFORMATIONS FDV INSTRUCTIONS DE MONTAGE FT - FICHE TECHNIQUE

SOMMAIRE

7.2. Service clients 15

Illustration of a water heater with warning symbol and warning label (no text or symbols on main body)

Diagram of a device with numbered parts, including a screen and control panel

A B C D Ø

3.3.1 Transport

Two silhouettes of people carrying large boxes, no text or symbols present

Technical diagram of a circular component with labeled parts and water flow indicators

R 1 3 S RESET RSER 2 4 1 1110K5-800C 2 60°C 80°C 70°C ±

Schéma de câblage

3.6.4 Instructions de montage

Recycling symbol composed of three chasing arrows forming a triangle (no text or labels)

Delta Inox - DI

200-300 l.

NL

Exterior view of a stainless steel water heater (no signage or text visible on body)

VEILIGHEIDSINFORMATIE

INFORMATIE OVER BEHEER, GEBRUIK EN ONDERHOUD

INSTALLATIE-INSTRUCTIES

Line drawing of a water heater with warning symbol and warning label (no text or symbols on main body)

2. PRODUCTBESCHRIJVING

2.1 Productidentificatie

Diagram of a device interior with numbered components for identification

A B C D Ø

3.3.1 Transport

Three stylized human figures carrying large rectangular blocks, no text or symbols present

Technical diagram of a circular mechanical or electrical component with labeled parts 1 and 2, showing internal structure and connections.

Recycling symbol composed of three chasing arrows forming a triangle (no text or labels)

©

OSO HOTWATER

OSO Hotwater AS

Industriveien 1

3300 Hokksund - Norway

Tel: [phone]

[e-mail]

www.osohotwater.com

© 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.