STIEBEL ELTRON CNS-U 500 Plus LCD Panel Heater Instructions

STIEBEL ELTRON CNS-U 500 Plus LCD Panel Heater

Product Information

• Specifications:
  • Models: CNS-U 500 Plus LCD (UK) / CNS-U 750 Plus LCD (UK) / CNS-U 1000 Plus LCD (UK) / CNS-U 1500 Plus LCD (UK) / CNS-U 2000 Plus LCD (UK) / CNS-U 2500 Plus LCD (UK) / CNS-U 3000 Plus LCD (UK)
  • Type: Wall-mounted convector
  • Units of Measurement: mm
  • The CNS-U Plus LCD series are wall-mounted convectors designed to heat living spaces.
  • These appliances are suitable for domestic use and can also be used in small businesses or other non-domestic environments, provided they are used in the same manner as in a home setting.
• General Information:
  • It is essential to read the user manual carefully before using the appliance.
  • Keep the manual for future reference and ensure to pass it along with the appliance if needed.
• Symbols and Warnings:
  • The manual includes various symbols indicating possible damages, actions required, prerequisites, results, and references.
  • Pay attention to warning symbols on the appliance, such as warnings against overheating and proper disposal instructions.
• Safety:
  • The appliance comes with section-specific and embedded warning notices.
  • Different signal words like DANGER, WARNING, CAUTION, and NOTICE are used to highlight the severity of risks and consequences of not following safety instructions.
• Intended Use:
  • The main purpose of the appliance is to heat living spaces safely. It is suitable for untrained users and can be used in both domestic and non-domestic settings as long as the instructions are followed correctly.

Product Usage Instructions

• Installation:
  • Follow the installation guidelines provided in the user manual.
  • Ensure the appliance is securely mounted on the wall according to the specified measurements.
• Operation:
  • Power on the convector using the designated switch or control panel.
  • Set the desired temperature using the controls.
  • Monitor the appliance regularly to ensure proper functioning.
  • Follow any additional instructions for specific models within the CNS-U Plus LCD series.

FAQs

• Q: Can the CNS-U Plus LCD series be used in commercial settings?
  • A: Yes, the appliances can be used in non-domestic environments like small businesses as long as they are operated following the same guidelines as for domestic use.

Special information

• Keep children under the age of 3 away from the appliance if constant supervision cannot be guaranteed.
• Children from the age of 3 to 8 may switch the appliance on and off, provided they are supervised or have been instructed in the safe operation of the appliance and understand any risks that may result. This is subject to the appliance having been installed as described. Children from the age of 3 to 8 must not regulate the appliance.
• This appliance may be used by people (including children) with reduced physical, sensory or mental capabilities or a lack of experience and knowledge, provided that they are supervised or have been instructed on how to use the appliance safely by a person responsible for their safety.
• Children must be supervised to ensure that they do not play with the appliance.
• In closed rooms, temperatures can rapidly reach high levels. Ensure constant supervision if the appliance is operated in a small room and the persons within that room cannot regulate the appliance or leave the room on their own.
• Observe all applicable national and regional regulations and instructions.
• Parts of the appliance can get very hot and may cause burns. Particular caution is advised when children or vulnerable persons are present.
• To prevent the appliance from overheating, never cover it with anything.
• Never install the appliance directly below a wall socket.
• In the case of a permanent connection, ensure the appliance can be separated from the power supply by an isolator with at least 3 mm of omnipolar contact separation.
• To prevent hazards, the power cable must only be replaced (for example if damaged) by a qualified contractor authorised by the manufacturer, using an original spare part.
• Secure the appliance in place as described in the chapter Installation (qualified contractors) [} 5].

General information

Read these instructions carefully before using the appliance and retain them for future reference. Pass on these instructions along with the appliance as necessary.

Symbols in this document

Symbols on the appliance

Units of measurement

• All measurements are given in mm unless stated otherwise.

Safety

Structure of the warning notices Section-specific warning notices

• Section-specific warning notices apply to all steps in the section. Injury
• Property damage, consequential losses, environmental pollution

Embedded warning notices

• Embedded warning notices apply only to the step immediately following the notice.

SIGNAL WORD:

• Consequence(s) of failure to observe the warning notice. Hazard prevention measure(s). Step to which the warning notice refers

Key to symbols

Signal words

Intended use

• This appliance is designed to heat living spaces.
• The appliance is intended for domestic use. It can be used safely by untrained persons. The appliance can also be used in non-domestic environments, e.g. in small businesses, as long as it is used in the same way.
• Observation of these instructions and instructions for any accessories used is also part of the intended use of this appliance.

Foreseeable misuse

• Any other use beyond that described shall be deemed to be outside the intended use.

Safety instructions Injury

• Keep children under the age of 3 away from the appliance if constant supervision cannot be guaranteed.
• Children from the age of 3 to 8 may switch the appliance on and off, provided they are supervised or have been instructed in the safe operation of the appliance and understand any risks that may result. This is subject to the appliance having been installed as described. Children from the age of 3 to 8 must not regulate the appliance.
• This appliance may be used by people (including children) with reduced physical, sensory or mental capabilities or a lack of experience and knowledge, provided that they are supervised or have been instructed on how to use the appliance safely by a person responsible for their safety.
• Children must be supervised to ensure that they do not play with the appliance.
• In closed rooms, temperatures can rapidly reach high levels. Ensure constant supervision if the appliance is operated in a small room and the persons within that room cannot regulate the appliance or leave the room on their own.
• Never operate this appliance …
  • if the distance from adjacent objects or other flammable materials would be less than the minimum permissible distance.
  • in rooms where there is a risk of fire or explosion as a result of chemicals, dust, gases or vapours. Ventilate the room sufficiently before heating.
  • in the direct proximity of pipes or receptacles that carry or contain flammable or explosive materials.
  • if an appliance component is damaged, the appliance has fallen over or there is a fault.
• Never place any flammable, combustible or insulating objects or materials on the appliance or in direct proximity to it.
• Parts of the appliance can get very hot and may cause burns. Particular caution is advised when children or vulnerable persons are present.
• To prevent the appliance from overheating, never cover it with anything.
• Ensure that the air intake and discharge are never blocked.
• Never place any objects between the appliance and the wall.
• The appliance is unsuitable for use as a floor-standing appliance. Only ever operate the appliance when it is mounted on the wall mounting bracket supplied (see chapter Installation (qualified contractors) [} 5]).

Property damage, consequential losses, environmental pollution

• Ensure that the power cable does not touch the appliance.
• Never stand on the appliance.
• Never operate the appliance in the open air.
• We guarantee trouble-free function and operational reliability only if original accessories and spare parts intended for the appliance are used.

Appliance description

• The appliance is a wall-mounted electric direct heater.
• The appliance is suitable for use as a standalone heater or as an interim heater in spring/autumn and as a booster heater for smaller rooms.
• The air inside the appliance is heated by a heating element and expelled via natural convection through the air discharge at the top.
• Cool indoor air is drawn in through the air intake on the underside of the appliance.
• When the set room temperature is reached, it is maintained by periodic heating.

Standard delivery

• 1x wall mounting bracket (hooked into the appliance)

Installation (qualified contractors)

Installation site

CAUTION Burns

• Only mount the appliance on a vertical wall that is temperature-resistant to at least 85 °C.

NOTICE Property damage

• Never install the appliance directly below a wall socket.
• Ensure that the power cable is not in contact with any appliance components.

Minimum clearances

Installing the wall mounting bracket

• The appliance is intended for wall mounting using the wall mounting bracket supplied.
• Only mount the appliance horizontally on the wall.
• The wall mounting bracket can be used as a template for wall mounting. This ensures sufficient clearance from the floor.
• Unhook the wall mounting bracket from the appliance.
• Place the wall retainer horizontally on the floor. Use a spirit level if the floor is uneven or sloping.
• Mark out holes 1 and 2 for drilling.
• Lift up the wall mounting bracket so that its lower slots match up with the drill hole markings on the installation wall.
• Mark out holes 3 and 4 for drilling.
• Drill the holes.
• Secure the wall mounting bracket with suitable fixing materials (screws, raw plugs). Any drill hole discrepancies can be compensated for with the slots.

Installing the appliance

1. Wall mounting bracket
   • Hook the appliance onto the bottom tabs of the wall mounting bracket by the slots in the back of the appliance.
   • Place the appliance in an upright position.
   • Push the appliance towards the supporting wall.
   • The appliance audibly snaps into place in the two upper springs on the wall mounting bracket.
   1. Appliance
   2. Locking screw
   • Secure the appliance against unintentional release using the supplied locking screw on the right or left-hand side of the wall mounting bracket.

Electrical connection

The appliance is delivered with a power cable without a plug.

• Connect the 4-core cable to a junction box as shown.
• The following electrical connections are permissible:

Appliance connected without a control cable

• Unregulated appliance. The control cable is not connected.
• In this case, insulate the control cable.

Temperature setback via a control cable

• To reduce the temperature to the set setback temperature, the black control cable is activated via an external electronic contact (e.g. a time switch).

Connection of control cable to an external control unit

• The appliance can be connected to any control unit that issues control signals with any of the following waveforms.

Commissioning (qualified contractors)

• The appliance is ready for operation as soon as it has been fixed to the wall and permanently connected to the mains.
• Remove the protective film from the programming unit.

Operation

1. Programming unit
2. ON/OFF switch

Switching the appliance on and off
On initial start-up and after longer breaks in use, an odour may develop briefly after switching on.

• Switch the appliance on and off using the ON/OFF switch.
• Switch the appliance off when not in use for longer periods (e.g. during the summer months).

All settings remain intact after switching off or after an interruption to the power supply. A power reserve in the appliance ensures that the day of the week and the time are saved for several hours. If the appliance has been switched off for a longer time with a time program activated, you will be prompted to set the day and time after switching it back on. Until this setting is made, the appliance will operate in comfort mode.

Programming unit

Operating buttons

Display

• If no button is pressed for 20 seconds, the backlighting switches off.
• Press any button to switch the backlighting back on.

Standby NOTICE Property damage

• In standby mode, the appliance will not switch on the heating. There will be no frost protection.
• To switch on the programming unit, press “Standby”.
• The default display appears.
• To put the programming unit and the heating appliance on standby, press “Standby”.
• The display shows “- – – -“.

Settings

Default display

• The default display is displayed continuously. If no user input is made for more than 20 seconds while in the menu, the device automatically returns the default display.
• The default display shows the current set room temperature as well as the “Editable parameter” symbol.
• Use “+” and “–” to select the set room temperature.
• If the set room temperature corresponds to one of the values set for the comfort or setback temperature, the symbol for the corresponding operating mode (comfort mode, setback mode) appears in the menu bar.
• The set room temperature can be changed manually when a time program is active. The new set room temperature is maintained until the next programmed switching point is reached.

Standard menu

• To call up the standard menu, briefly press “Menu”.

Menu items

Changing the menu item settings

• Call up the required menu item using “+” and “–”.
• Press “OK”.
• The “Editable parameter” symbol appears.
• Change the menu item setting using “+” and “–”.
• To save the setting, press “OK”.
• To exit the standard menu, press “Menu”.
• The default display appears.

Configuration menu

Calling up actual values, programming time programs and setting parameters

• To call up the configuration menu, press and hold the button.
• After approx. 3 seconds, the actual value I1 is displayed.
• Use “+” and “–” to switch between the individual actual values, time programs and parameters.
• To exit the configuration menu, press “Menu”.
• The default display appears.

Actual values

Setting time programs (weekly timer)

• Three-time programs are available.

• Time programs Pro1 and Pro2 are pre-configured at the factory.

• Time program Pro3 can be set according to your requirements.

• To use a time program, select the required time program in the standard menu (see chapter Standard menu [} 8]).

• When setting the time programs, ensure the day of the week and the time are set correctly.

Time programs Pro1 and Pro2

• With time programs Pro1 and Pro2, you can specify the comfort mode start and end times. During the selected period, the appliance heats to the set comfort temperature. Outside this specified period, the appliance operates in setback mode.
• This results in a comfort phase and a setback phase, which are repeated daily (Pro1) or on every working day (Pro2).

These phases are factory-set as follows:

• 08:00 h – 22:00 h: Comfort mode
• 22:00 h – 08:00 h: Setback mode

When time program Pro2 is enabled, the appliance operates only in setback mode at weekends.

To configure comfort phases in time programs Pro1 and Pro2:

• In the configuration menu, call up the required time program using “+” and “–”.
• Press “OK”.
• The start time for comfort mode is displayed.
• Use “+” and “–” to set the required start time.
• Press “OK”.
• The end time for comfort mode is displayed.
• Use “+” and “–” to set the required end time.
• To save the setting, press “OK”.
• Time program Pro3
• You can use the time program Pro3 to specify up to 14 separate comfort phases which are repeated weekly.
• To configure a comfort phase in time program Pro3:
• In the configuration menu, call up the time program Pro3 using “+” and “–”.
• Press “OK”.
• The display shows “3—“.
• Press “OK”.
• A day of the week or a group of days is displayed.
• Use “+” and “–” to select the required day or group of days.
• Press “OK”.
• The start time for comfort mode is displayed.
• Use “+” and “–” to set the required start time.
• Press “OK”.
• The end time for comfort mode is displayed.
• Use “+” and “–” to set the required end time.
• Press “OK”.
• Comfort phase “3-01” has been configured.
• To configure a further comfort phase, use these buttons in the time program Pro3 to select “3—” on the display. Proceed as described above.

Resetting the time programs

• Activating parameter P4 resets all-time programs (Pro1, Pro2, Pro3) to the factory setting.
• To reset the selected comfort phases, activate parameter P4.

Parameter

Changing a parameter value

• Call up the required parameter using “+” and “–”.
• Press “OK”.
• The “Editable parameter” symbol appears.
• Select the required parameter value using “+” and “–”.
• Press “OK” to save the selected value.

P1: Room temperature offset

• Uneven temperature distribution in the room can result in a differential between the displayed actual temperature I1 and the room temperature you measure.
• To compensate for this differential, a room temperature offset of ±3 °C can be set with parameter P1.
• Example: The appliance displays a temperature I1 of 21.0 °C. You have measured a room temperature of 20.0 °C. There is a differential of 1.0 °C.
• To compensate for the differential, select an offset of P1 = -1.0.

P2: Time format

• Parameter P2 allows you to specify whether the time is displayed in the 12-hour or 24-hour format.

P3: Units for temperature indication

• Parameter P3 is used to specify whether the room temperature is displayed in degrees Celsius [°C] or Fahrenheit [°F].

P4: Reset time programs

• Activating parameter P4 resets all-time programs to the factory setting.

P5: Reset relative heating time

• Activating parameter P5 resets the counter for relative heating time (I2).

Cleaning (users)

NOTICE Property damage

• If moisture enters the appliance, the electronic components may be damaged.
• Never spray cleaning spray into the air slot.
• Ensure that no moisture can enter the appliance.
• If a pale brownish discolouration appears on the appliance casing, wipe it off with a damp cloth.
• Clean the appliance when cold with ordinary cleaning products. Avoid abrasive or corrosive cleaning products.

Troubleshooting (users)

• If you cannot remedy the fault, contact your qualified contractor.
• To facilitate and speed up your enquiry, please provide the qualified contractor with the number from the type plate.

Troubleshooting (qualified contractors)

• To prevent hazards, the power cable must only be replaced (for example if damaged) by a qualified contractor authorised by the manufacturer, using an original spare part.

Removal

• Undo and remove the locking screw from the wall mounting bracket.
• To release the appliance, push down the springs at the top of the wall mounting bracket.
• Tilt the appliance forward.
• Lift the appliance off the bottom tabs on the wall mounting bracket.

Specification

Dimensions and Connections

Energy consumption data

• The product data complies with EU regulations relating to the directive on the ecodesign of energy-related products (ErP).
• Product information on electric local space heaters to regulation (EU) 2015/1188

Data table

Guarantee

• 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 a guarantee is only granted if the subsidiary has issued its terms of the 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 per national regulations.

CONTACT

• www.stiebel-eltron.com
• CNS-U 500-3000 Plus LCD (UK)
• STIEBEL ELTRON International GmbH
• Dr.-Stiebel-Straße 33 / 37603 Holzminden / Germany
• info@stiebel-eltron.com.
• www.stiebel-eltron.com.
• A 356439-45487-9847
  • CNS-U 500 Plus LCD (UK) /
  • CNS-U 750 Plus LCD (UK) /
  • CNS-U 1000 Plus LCD (UK) /
  • CNS-U 1500 Plus LCD (UK) /
  • CNS-U 2000 Plus LCD (UK) /
  • CNS-U 2500 Plus LCD (UK) /
  • CNS-U 3000 Plus LCD (UK)

References

• STIEBEL ELTRON International

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