Stiebel Eltron SHU 5 SLi comfort SMALL WATER
HEATER User Manual
ENVIRONMENT AND RECYCLING
INSTALLATION TEMPLATE SHU 5 SLI | SHU 5 SL GB (INSIDE THESE INSTRUCTIONS)
– The appliance may be used by children aged 8 and older and persons with reduced physical, sensory or mental capabilities or a lack of experience and know-how, provided that they are supervised or they have been instructed on how to use the appliance safely and have understood the resulting risks. Children must never play with the appliance. Children must never clean the appliance or perform user maintenance unless they are supervised.
– In the case of permanent connection to the power supply via a junction box, ensure that the appliance can be isolated from the mains by an isolator that disconnects all poles with at least 3 mm contact separation.
– The power cable may only be replaced (for example if damaged) by a qualified contractor authorised by the manufacturer, using an original spare part.
– Secure the appliance as described in chapter “Installation / Installation”.
– Observe the maximum permissible pressure (see chapter “Installation / Specification / Data table”).
– The appliance is pressurised. During the heat-up process, expansion water will drip from the safety valve.
– Regularly activate the safety valve to prevent it from becoming blocked, e.g. by limescale deposits.
– Drain the appliance as described in chapter “Installation / Maintenance / Draining the appliance”.
– Size the drain pipe so that water can drain off unimpeded when the safety valve is fully opened.
– Fit the drain pipe of the safety valve with a constant downward slope and in a room free from the risk of frost.
– The safety valve drain must remain open to the atmosphere.
1. General information
The chapters “Special Information” and “Operation” are intended for users and qualified contractors. The chapter “Installation” is intended for qualified contractors.
ℹ Note Read these instructions carefully before using the appliance and retain them for future reference. Pass on the instructions to a new user if required.
1.1 Safety instructions
1.1.1 Structure of safety instructions
⚠ KEYWORD Type of risk
Here, possible consequences are listed that may result
from failure to observe the safety instructions.
▶ Steps to prevent the risk are listed.
1.1.2 Symbols, type of risk
1.2 Other symbols in this documentation
▶ This symbol indicates that you have to do something. The action you need to take is described step by step.
1.3 Units of measurement
All measurements are given in mm unless stated otherwise.
2.1 Intended use
This sealed unvented (pressurised) appliance is intended for heating domestic hot water. You can use the appliance to supply one or several draw-off points. This appliance is intended for domestic use. It can be used safely by untrained persons.
The appliance can also be used in a non-domestic environment, e.g. in a small business, as long as it is used in the same way.
Any other use beyond that described shall be deemed inappropriate. Observation of these instructions and of instructions for any accessories used is also part of the correct use of this appliance.
2.2 Safety instructions
Where children or persons with limited physical, sensory or mental abilities are allowed to use this appliance, we recommend a permanent temperature limit. A qualified contractor can set this limit.
If the drain pipe of the safety valve is sealed, the expansion water may cause water damage.
▶ Never close the drain pipe.
The user should protect the appliance and its tap against frost.
2.3 Test symbols
See type plate on the appliance.
3. Appliance description
The sealed unvented (pressurised) appliance constantly maintains the water content at the pre-selected temperature. The appliance switches on automatically as soon as its temperature falls below the set value. Subject to season, varying cold water temperatures can result in different maximum mixed water and outlet volumes.
A qualified contractor can set a temperature limit on the appliance (see “Installation / Settings / Setting the temperature limit”).
The appliance is under mains water pressure. The water volume increases as the cylinder is being heated up. During this process, expansion water drips out through the safety valve. This is a necessary and normal process.
You can set any required DHW outlet temperature at the temperature selector. The heat-up indicator illuminates during the heat-up process.
Depending on the system, the actual temperatures may vary from the set value.
°C = Cold. On this setting, the appliance is protected from frost. The tap and the water line are not protected.
Eco = Recommended energy saving setting (approx. 60 °C), minor scaling
82 = Highest selectable temperature
4. Cleaning, care and maintenance
▶ Never use abrasive or corrosive cleaning agents. A damp cloth is sufficient for cleaning the appliance.
▶ Check the taps regularly. Limescale deposits at the tap outlets can be removed using commercially available descaling agents.
▶ Have the function of the safety assembly checked regularly by a qualified contractor.
Almost every type of water will deposit limescale at high temperatures. This settles inside the appliance and affects both the performance and service life. The heating elements should therefore be descaled if necessary. A qualified contractor who is aware of the local water quality will tell you when the next descaling is due.
Only a qualified contractor should carry out installation, commissioning, maintenance and repair of the appliance.
6.1 General safety instructions
We guarantee trouble-free function and operational reliability only if original accessories and spare parts intended for the appliance are used.
6.2 Instructions, standards and regulations
Observe all applicable national and regional regulations and instructions.
6.3 Information on the safety assembly
If using a plastic stench trap (e.g. DN 40 for the sink), there is no need for the SVMT immersion pipe. Connect the overflow funnel, e.g. using the washing machine connection.
7. Appliance description
The sealed unvented (pressurised) appliance is only suitable for undersink installation. The appliance is intended for heating cold water and for supplying one or several draw-off points. The appliance may only be installed with pressure taps in conjunction with the SVMT safety assembly (see chapter “Installation / Appliance description / Required accessories”).
7.1 Standard delivery
Delivered with the appliance are the following:
– Wall mounting bracket
SHU 10 SLi
– Installation template
7.2 Required accessories
The following accessories are available for sealed unvented operation:
– SVMT safety assembly for undersink installation
– Water distribution tees
A safety assembly is required.
Only install pressure taps in conjunction with the SVMT safety assembly.
8.1 Installation site
Always install the appliance vertically and near the draw-off point.
When using plastic pipework, observe the extreme operating and fault conditions that can occur on the appliance (see chapter “Installation / Specification / Extreme operating and fault conditions”).
▶ To provide a supply to two washbasins, use the “water distribution tees” (see chapter “Installation / Appliance description / Required accessories”).
▶ Run the connections to the second tap on site, e.g. in 10 mm copper pipe.
9.1 Installing the safety assembly
▶ Fit the safety assembly in the cold water supply line of the appliance.
▶ Observe the information on the safety assembly (see chapter “Installation / Safety / Information on the safety assembly”).
▶ Observe the information in the safety assembly installation instructions.
9.2 Appliance installation
9.3 Water connection
Match up the colour coding on the water connections of the tap and the appliance: – R.h. side blue = “Cold water inlet” – L.h. side red = “DHW outlet”
▶ Secure the tap connections to the appliance.
Ensure that the water connections are not kinked during installation. Prevent any tensioning during installation.
9.4 Power supply
The following electrical connections are permissible:
WARNING ELECTROCUTION Commissioning may only be carried out by a qualified contractor in accordance with safety regulations.
10.1 Initial start-up
▶ Either open the DHW valve of the tap or set the mono lever mixer tap to “hot” until the water that flows out is free of air bubbles.
▶ Check the safety assembly. When purging, ensure that a full jet of water flows out.
▶ Insert the plug into the standard socket or set the fuse/MCB in the fuse box.
▶ Select a temperature.
▶ Check the entire hydraulic installation for tightness.
10.1.1 Appliance handover
▶ Explain the functions of the appliance to the user. Show the
user how to operate the appliance.
▶ Make the user aware of potential dangers, especially the risk
▶ Hand over these instructions and, if applicable, the instructions for any accessories.
See chapter “Installation / Commissioning / Initial start-up”.
11.1 Setting the temperature limit
Placing the limiting ring behind the temperature selector allows you to limit the setting range of the temperature selector to a specific maximum temperature.
▶ Turn the temperature selector to zero (fully anti-clockwise to “°C”).
▶ Pull off the temperature selector and the limiting ring.
▶ Push the limiting ring with the required maximum setting onto the controller shaft.
▶ Mount the temperature selector set to zero (°C).
▶ Isolate the appliance from the power supply by removing the plug or by tripping the MCB in the fuse box.
▶ Drain the appliance (see chapter “Installation / Maintenance / Draining the appliance”).
13.1 Activating the high limit safety cut-out
WARNING Electrocution Before any work on the appliance, disconnect all poles of the appliance from the power supply.
▶Dismantle the appliance for maintenance work.
14.1 Draining the appliance
WARNING Burns Hot water may escape during draining.
▶ Drain the appliance via its connectors.
14.2 Opening the appliance
14.3 Descaling the appliance
▶ Remove the flanged immersion heater.
▶ Carefully tap the heating element to remove coarse limescale
▶ Immerse the heating element up to the flange plate in descaling agent.
14.4 Checking the earth conductor
▶ Check the earth conductor (in Germany DGUV3 for example) across a water connector and the earth conductor contact of the power cable.
14.5 Replacing the power cable
The power cable must only be replaced by a qualified contractor with an original spare part. Alternatively, the H05VV-F3x1.0 cable may be used.
14.6 Positioning the temperature sensor in its protective pipe
15.1 Dimensions and connections
SHU 5 SLi | SHU 10 SLi
SHU 5 SL GB
15.2 Wiring diagram
1/N/PE ~ 220 – 240 V
15.3 Heat-up diagram
The heat-up period depends on the degree of scaling and residual heat. For the heat-up time for a cold water supply at 10 °C and a maximum temperature setting, see the diagram.
15.4 Country-specific approvals and certifications
The test symbols can be seen on the type plate.
15.5 Extreme operating and fault conditions
In the case of faults, a peak temperature of up to 105 °C may briefly occur in the system.
15.6 Details on energy consumption
15.7 Data table
The guarantee conditions of our German companies do not apply to appliances acquired outside of Germany. In countries where our subsidiaries sell our products a guarantee can only be issued by those subsidiaries. Such guarantee is only granted if the subsidiary has issued its own terms of guarantee. No other guarantee will be granted.
We shall not provide any guarantee for appliances acquired in countries where we have no subsidiary to sell our products. This will not affect warranties issued by any importers.
Environment and recycling
We would ask you to help protect the environment. After use, dispose of the various materials in accordance with national regulations.
Verkauf Tel. 05531 702-110 | Fax 05531 702-95108 | info-[email protected]
Kundendienst Tel. 05531 702-111 | Fax 05531 702-95890 | [email protected]
Ersatzteilverkauf Tel. 05531 702-120 | Fax 05531 702-95335 | [email protected]
STIEBEL ELTRON (Tianjin) Electric Appliance
Plant C3, XEDA International Industry City
Xiqing Economic Development Area
Tel. 022 8396 2077 | Fax 022 8396 2075
Subject to errors and technical changes!
Stiebel Eltron SHU 5 SLi comfort SMALL WATER
HEATER User Manual PDF Download