PSH Classic - Boiler STIEBEL ELTRON - Free user manual and instructions

USER MANUAL PSH Classic STIEBEL ELTRON

1.3 Units of measurement 67

2.2 General safety instructions 68

4.1 Holiday and absence 68

5. Cleaning, care and maintenance 69

7.1 General safety instructions 69

7.2 Instructions, standards and regulations 69

9.2 Fitting the wall mounting bracket 70

9.3 Preparing the power cable 70

10.1 Water connection 70

10.2 Power supply 70

10.3 Installing the temperature indicator 71

11. Commissioning 71

11.1 Initial start-up 71

11.2 Recommissioning 71

14.1 Checking the safety valve 72

14.2 Draining the appliance 72

15.1 Dimensions and connections 73

15.2 Wiring diagram 74

15.3 Heat-up diagrams 74

15.4 Fault conditions 74

15.5 Details on energy consumption 74

The chapters “Special Information” and “Operation” are intended for both the user and qualified contractors.The chapter “Installation” is intended for qualified contractors. Note Read these instructions carefully before using the appli-ance and retain them for future reference.Pass on the instructions to a new user if required.1.1 Safety instructions1.1.1 Structure of safety instructions

KEYWORD Type of riskHere, possible consequences are listed that may result from failure to observe the safety instructions.f Steps to prevent the risk are listed.1.1.2 Symbols, type of riskSymbol Type of risk

Burns(burns, scalding) 1.1.3 KeywordsKEYWORD MeaningDANGER Failure to observe this information will result in serious injury or death. WARNING Failure to observe this information may result in serious injury or death.CAUTION Failure to observe this information may result in non-seri-ous or minor injury.1.2 Other symbols in this documentation Note General information is identified by the adjacent symbol.f Read these texts carefully.Symbol Meaning

Material losses(appliance damage, consequential losses and environmen-tal pollution)

Appliance disposal f This symbol indicates that you have to do something. The ac- tion you need to take is described step by step.1.3 Units of measurement Note All measurements are given in mm unless stated oth-erwise.

2.1 Intended useThe appliance is intended for heating domestic hot water and can supply one or more 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-do- mestic 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 inappro- priate. Using the appliance for heating fluids other than water or for water supplemented with chemicals, such as brine, is also deemed inappropriate.Observation of these instructions and of instructions for any ac-cessories used is also part of the correct use of this appliance.

!OPERATION Appliance description 68 | PSH Classic www.stiebel-eltron.com

2.2 General safety instructions

WARNING BurnsDuring operation, the tap and safety valve can reach temperatures in excess of 60°C.There is a risk of scalding at outlet temperatures in ex-cess of 43 °C.

WARNING InjuryThe 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, pro-vided that they are supervised or they have been in-structed 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 ap-pliance or perform user maintenance unless they are supervised.

Material lossesThe user should protect the water lines and the safety valve from frost. Note The appliance is pressurised. During the heat-up process, expansion water will drip from the safety valve.f If water continues to drip when heating is complet-ed, please inform your qualified contractor.

See type plate on the appliance.

3. Appliance description

The closed (pressure-tested) appliance heats DHW electrically. You can adjust the temperature using the temperature selector. Subject to the power supply, the water is automatically heated to the required temperature. You can read off the current DHW temperature at the temperature indicator.The internal steel cylinder is coated with special “Co Pro” enamel and is equipped with a protective anode. The anode protects the internal cylinder from corrosion.Frost protectionThe appliance is also protected against frost by the temperature setting “*”, provided that the power supply is guaranteed. The appliance switches on in good time and heats the water. The ap-pliance does not protect the water supply lines and the safety valve from frost.

Note Only the contractor is permitted to remove the temper-ature selector.The temperature is variably adjustable.D0000051324211 ON/OFF indicator2 Temperature selector* Frost protectionE Recommended energy saving position, low scaling, 60°CMax Maximum temperature setting, 70°CDepending on the system, the actual temperatures may vary from the set value.ON/OFF indicatorThe ON/OFF indicator illuminates when water is being heated.Temperature indicator

D00000584601 Pointer position at approx. 30°C2 Pointer position at approx. 50°C3 Pointer position at approx. 70°CThe current temperature is measured inside the cylinder, at the position of the temperature indicator (see chapter “Specification/ Dimensions and connections”).

4.1 Holiday and absence

f If the appliance is not to be used for a few days, set the tem-perature selector to a position between the frost protection and energy saving settings.f If the appliance is not to be used for a longer period, set it to frost protection to conserve energy. If there is no risk of frost you may disconnect the appliance from the power supply.f For reasons of hygiene, heat up the content of the cylinder once to above 60°C before initial use.INSTALLATION Cleaning, care and maintenance ENGLISH www.stiebel-eltron.com PSH Classic | 69

5. Cleaning, care and maintenance

f Have the electrical safety of the appliance and the function of the safety valve regularly checked by a qualified contractor. f Have the protective anode initially checked by a qualified contractor after the first year. The qualified contractor will then determine the intervals at which repeat checks should be performed. f Never use abrasive or corrosive cleaning agents. A damp cloth is sufficient for cleaning the appliance. Scaling f 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 must therefore be descaled from time to time. A qualified contractor who knows the local water quality will tell you when the next service is due. f Check the taps regularly. Limescale deposits at the tap out- lets can be removed using commercially available descaling agents. f Regularly activate the safety valve to prevent it from becom- ing blocked, e.g. by limescale deposits.

Problem Cause RemedyThe water does not heat up and the ON/OFF indi-cator does not illuminate.There is no power. Check the fuses/MCBs in your fuse box/distribu-tion panel.The water does not heat up sufficiently and the ON/OFF indicator illumi-nates.The temperature is set too low. Select a higher temper-ature.

The appliance heats, for example, after large amounts of DHW have been drawn.Wait until the ON/OFF indicator goes out. The flow rate is low. The aerator in the tap or the shower head is scaled up or soiled.Clean and/or descale the aerator or shower head. If you cannot remedy the fault, notify your qualified contractor. To facilitate and speed up your enquiry, please provide the numbers from the type plate (000000 and 0000-000000): E-NO.: 000000F-NO.: 0000-000000D0000051325 INSTALLATION

Only a qualified contractor should carry out installation, commis- sioning, maintenance and repair of the appliance.

7.1 General safety instructions

We guarantee trouble-free function and operational reliability only if original accessories and spare parts intended for the appliance are used.

7.2 Instructions, standards and regulations

Note Observe all applicable national and regional regulations and instructions.

The following are delivered with the appliance: - Safety valve - Temperature indicator - Strain relief with 2 screws

The appliance is designed to be permanently wall mounted to a solid surface. Ensure the wall offers adequate load bearing ca- pacity. There should be a suitable drain near the appliance to drain off the expansion water. Install the appliance vertically in a room free from the risk of frost and near the draw-off point. It may not be fitted in a corner since the screws for fixing the appliance to the wall must remain accessible.INSTALLATION Installation 70 | PSH Classic www.stiebel-eltron.com

9.2 Fitting the wall mounting bracket

Note Ensure that the temperature selector is accessible from the front. The mounting bracket attached to the appliance has hook-in slots, which in most cases enables installation on the bolts that are already in place from previous appliances. f Otherwise, transfer the dimensions for the holes to be drilled on the wall (see chapter “Specification/ Dimensions and connections”). f Drill the holes, if required, and secure the wall mounting bracket with screws and rawl plugs. Select fixing materials in accordance with the wall construction/condition. f Hook the appliance with the wall mounting bracket on to the screws or bolts. Observe the dry weight of the appliance (see chapter “Specification/ Data table”) and, if necessary, ask another person to help. f Align the appliance vertically.

9.3 Preparing the power cable

10.1 Water connection

Material losses Carry out all water connection and installation work in accordance with regulations. Operate the appliance only with pressure-tested taps. f Thoroughly flush out the cold water line before connecting the appliance, so that no foreign matter gets into the water heater or safety valve. f Connect the hydraulic connections with flat gaskets.

Material losses When using plastic pipework, observe the manufacturer‘s data and the chapter “Specification/ Fault conditions”. Cold water line Galvanised steel, stainless steel, copper and plastic are approved materials. DHW line Stainless steel, copper and plastic are approved materials.

10.1.2 Fitting the safety valve

Note A pressure reducing valve must be installed in the cold water inlet if the water pressure is greater than 0.6MPa. The maximum permissible pressure must not be exceeded (see chapter “Specification/ Data table”). f Install a type-tested safety valve in the cold water inlet line. Please note that, depending on the supply pressure, you may also need a pressure reducing valve. f Size the drain so that water can drain off unimpeded when the safety valve is fully opened. f Fit the discharge pipe of the safety valve with a constant downward slope and in a room free from the risk of frost. f The safety valve discharge aperture must remain open to atmosphere. Never install a stop fitting between the appliance and the safety valve.

WARNING Electrocution Carry out all electrical connection and installation work in accordance with relevant regulations. Before any work on the appliance, ensure omnipolar disconnection from the power supply. WARNING Electrocution The connection to the power supply must be in the form of a permanent connection. Ensure the appliance can be separated from the power supply by an isolator that dis- connects all poles with at least 3mm contact separation. WARNING Electrocution Ensure that the appliance is earthed. Material losses Install a residual current device (RCD).

Material losses Observe the type plate. The specified voltage must match the mains voltage. f Undo the 2screws on the bottom cap. f Remove the lower cap. When doing so, take care with the connecting leads for the temperature controller and ON/OFF indicator, which are attached to the bottom cap.INSTALLATION Commissioning ENGLISH www.stiebel-eltron.com PSH Classic | 71 D0000054458 f Fit the strain relief supplied. f Install a power cable. f Connect the power cable inside the appliance and secure it with the 2screws. f Secure the bottom cap with the 2screws. f Push on the temperature selector.

10.3 Installing the temperature indicator

f Press the temperature indicator into the opening until it clicks into place.

11.1 Initial start-up

Note Fill the appliance with water prior to electrical connec- tion. If you switch on the appliance while empty, the high limit safety cut-out will switch it off. f Open the shut-off valve in the cold water inlet line. f Open a draw-off point until the appliance has been filled with water and the pipework is free of air. f Adjust the flow rate. For this, observe the maximum permis- sible flow rate with a fully opened tap (see chapter “Specifi- cation/ Data table”). f Turn the temperature selector to maximum. f Switch the mains power ON. f Check the appliance function. Ensure that the temperature controller switches off. f Check that the safety valve is working.

11.1.1 Appliance handover

f Explain the function of the appliance and safety valve to users and familiarise them with their operation. f Make the user aware of potential dangers, especially the risk of scalding. f Hand over these instructions.

11.2 Recommissioning

See chapter “Commissioning”.

f Disconnect the appliance from the mains at the MCB/fuse in the fuse box. f Drain the appliance. See chapter “Maintenance/ Draining the appliance”.

Note At temperatures below –15°C the high limit safety cut-out may respond. The appliance may be subjected to these temperatures during storage or transport. fault Cause Remedy The water does not heat up and the ON/OFF indi- cator does not illuminate. The high limit safety cut-out has responded because the controller is faulty. Remedy the cause of the fault. Replace the con- troller.

The high limit safety cut-out has responded because the temperature has fallen below -15°C. Press the reset button (see diagram). The water does not heat up and the ON/OFF indi- cator illuminates. The heating element is faulty. Replace the heating el- ement. The water does not heat up sufficiently and the ON/OFF indicator illumi- nates. The temperature control- ler is faulty. Replace the temperature controller. The heat-up time is very long and the ON/OFF in- dicator illuminates. The heating element is scaled up. Descale the heating el- ement. The safety valve drips when heating is switched off. The valve seat is contam- inated. Clean the valve seat. Water pressure is too high. Install a pressure reduc- ing valve. Reset button, high limit safety cut-out D0000051326INSTALLATION Maintenance 72 | PSH Classic www.stiebel-eltron.com

WARNING Electrocution Carry out all electrical connection and installation work in accordance with relevant regulations. Before any work on the appliance, disconnect all poles of the appliance from the power supply. If you need to drain the appliance, observe chapter “Draining the appliance”.

14.1 Checking the safety valve

f Check the safety valve regularly.

14.2 Draining the appliance

WARNING Burns Hot water may escape during draining. If the appliance needs to be drained for maintenance or to protect the whole installation when there is a risk of frost, proceed as follows: f Close the shut-off valve in the cold water inlet line. f Open the DHW valves of all draw-off points until the appli- ance is fully drained. f Drain any residual water from the safety valve.

14.3 Checking / replacing the protective anode

f Check the protective anode after the first year of use and re- place if necessary. f Next, decide the time intervals at which further checks should be carried out.

f Remove loose scale deposits from the water heater. f If necessary, descale the inner cylinder with commercially available descaling agents. f Descale the flange only after removal. f Never treat the cylinder surface or the protective anode with descaling agents.

14.5 Anti-corrosion protection

Ensure that while carrying out maintenance work the anti-corro- sion protection (560 Ω) is not damaged or removed. Reinsert the anti-corrosion protection correctly after replacement. D0000051327

14.6 Replacing the combined controller/limiter

1 Controller sensor 2 Limiter sensor f Insert the controller sensor and the limiter sensor into the sensor well as far as they will go.INSTALLATION Specication ENGLISH www.stiebel-eltron.com PSH Classic | 73

15.1 Dimensions and connections

15.5 Details on energy consumption

15.3 Heat-up diagrams

The heat-up time depends on the cylinder capacity, cold water inlet temperature and heating output. Graph assumes 15°C cold water inlet temperature:

15.4 Fault conditions

In the event of a fault, temperatures of up to 95°C at 0.6MPa can occur.ENGLISH www.stiebel-eltron.com PSH Classic | 75

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