1. SAFETY INSTRUCTIONS 1.1 General information • Read the following safety instructions carefully before installing, maintaining or adjusting the buffer tank. • Personal injury or material damage may result if the product is not installed or used in the intended manner. •...
1.2 Safety instructions for users WARNING The overflow from the TP safety valve must NOT be sealed or plugged. 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. Maintenance/settings should only be carried out by persons over 18 years of age, with sufficient understanding CAUTION...
• Safety standard EN 60335-2-21 • Welding standard EN ISO 3834-2 The product complies with Directives for: • Low voltage LVD 2014/35/EU OSO Hotwater AS is certified for • Electromagnetic compatibility EMC 2014/30/EU • Quality ISO 9001 • Pressurised equipment PED 2014/68/EU •...
3. INSTALLATION INSTRUCTIONS 3.1 Products covered by these instructions 800 1653 MX 600 800 1654 MX 1000 3.2 Included in delivery Num- Ref no. Description ber of Buffer tank with electric peak load Installation manual (this document) PT valve 10 bar/99°C (supplied loose) 3.3 Product dimensions All dimensions in mm.
3.3.1 Delivery The product should be transported carefully as shown, with packaging. CAUTION Pipe stubs, valves etc. should not be used to lift the product as this could cause malfunctions. 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.
3.5 Pipe installation 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 standards and regulations must be followed. Dimension Connection description 1½” internal thread. Hot water out 2 3/4”...
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3.5.4 Fitting instructions 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 suitable for the total weight of the product when in operation.
3.6 Electrical installation Fixed electrical fittings must be used for instal- A) Supply cable connected to Ensto connecting lation. Any electric fittings must be installed by piece (1) as shown. Supply pipes should an authorized electrician. The relevant standards be secured with suitable strain relievers. and regulations must be followed.
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3.6.4 Fitting instructions WARNING The product should be filled with water before the power is switched on. Fixed electrical fittings must be used for installation according to the regulations. Any electric fittings must be installed by an authorized electrician. The mains cable should withstand 90°C. A suitable strain reliever must be fitted. CAUTION The product must have a clearance for servicing of 40 cm in front of the cover.
4. INITIAL COMMISSIONING 4.1 Filling with water 4.5 Handover to end-user First check that all pipes are connected correctly. THE INSTALLER MUST: Then fill the tank according to the needs/require- ments of the system. Make sure that the tank is Brief the end-user on safety and maintenance vented during filling to prevent air pockets.
5. USER GUIDE 5.1 Settings 5.1.1 Thermostat setting WARNING The product’s thermostats are adjustable from Constant voltage present in the junction box. Be- 60-90°C. The thermostat should not be set lower fore any electrical work is done, the power supply than 65°C to prevent bacteria growth.
6. TROUBLESHOOTING 6.1 Faults and fixes If problems arise when the product is in use, installer (see product type plate) or OSO Hot- check for possible faults and fixes in the table. water AS - see section 7.1. If you are unsure what is wrong, contact the TROUBLESHOOTING Problem Possible cause of fault...
7. WARRANTY CONDITIONS 1. Scope OSO Hotwater AS (“OSO”) warrants for 5 years from the date of • The product has only been connected to public water purchase that the Product will: i) conform to OSO specifications, works, has been in regular use, and the water quality is as...
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