Bosch Climate 7100i, CL7100i W 35 HE / CL7100i W 50 HE Manual

Explanation of symbols

In warnings, signal words at the beginning of a warning are used to indicate the type and seriousness of the ensuing risk if measures for minimizing danger are not taken.
The following signal words are defined and can be used in this document:

Indicates that severe to life-threatening personal injury will occur.

Indicates a hazardous situation which, if not avoided, could result in serious personal injury or danger to life.

Indicates a hazardous situation which, if not avoided, could result in minor to moderate personal injury.
NOTICE
ATTENTION indicates that material damage may occur.

The info symbol indicates important information where there is no risk to people or property.
Table 31

Symbol	Meaning
	Warning regarding flammable substances: the refrigerant R32 used in this product is a gas with low combustibility and low toxicity (A2L or A2).
	Wear protective gloves during installation and maintenance work.
	Maintenance by a qualified person should be done while following the instructions of the service manual.
	For operation follow the instructions of the user manual.

Product Information

Scope of delivery

1. Outdoor unit (filled with refrigerant)
2. Indoor unit (filled with nitrogen)
3. Set of printed documents for product documentation
4. Fixing materials (5-8 screws and wall plugs)
5. Drainage elbow with gasket (for outdoor unit with floor or wall mounting bracket) (may be attached to the outdoor unit upon delivery)
6. Mounting plate
7. Remote control
8. 5-core communication cable (optional accessory)
9. Remote control batteries (2)
10. Remote control holder and fixing screw
11. Magnetic ring
12. Cold catalyst filter (black) and bio filter (green)

Product dimensions and minimum clearances

1. Indoor and outdoor units
   
   121
   

   	A [mm]	B [mm]	C [mm]
   CL7100i W 35 HE CL7100i W 50 HE	909	308	255

   
   122

   	A [mm]	B [mm]	C [mm]	D [mm]	E [mm]	F [mm]
   CL7100i 35 HE	874	805	511	330	554	317
   CL7100i 50 HE	955	890	663	342	673	348

2. Refrigerant lines
   
   1. Gas-side pipe
   2. Liquid-side pipe
   3. Siphon-shaped elbow as oil separator

If the outdoor unit is installed higher than the indoor unit, a siphonshaped elbow must be installed on the gas side. The installation must be done at intervals of no more than 6 meters, and every 6 metres thereafter (Figure 21, [1]).

• Observe maximum pipe length and maximum difference in height between indoor unit and outdoor unit.

Table 32 Pipe length and difference in height

1. Gas side or liquid side
2. Measured from lower edge to lower edge.

Table 33 Pipe diameter depending on unit type

Information on refrigerant

This device contains fluorinated greenhouse gases as refrigerant. The unit is hermetically sealed. The following information on the refrigerant complies with the requirements of EU Regulation No. 517/2014 on fluorinated greenhouse gases.
Table 34 Alternative pipe diameter

Specification of the pipes
Table 35

Information for the installer: If you refill refrigerant, enter the additional charge size and the total charge size of the refrigerant in the table "information on refrigerant" below.
Table 36 F-Gas

If the distance between the indoor and outdoor units exceeds 5 meters, additional refrigerant charge must be added. For every meter of additional distance, it is necessary to include an extra 12 grams of refrigerant charge.

Product information on electrical connection including radio equipment components

Please refer to chapter "Electrical connection including radio equipment components".
In order to select the correct fuse for this installation, it is important that the skilled person installing the air conditioner pays attention to chapter "Electrical connection".

Installation

Before installation

Risk of injury from sharp edges!

• Wear protective gloves during installation.

Danger of burns!
During operation the pipes become hot.

• Make sure, that the pipes cooled down before touching them.

• Check the scope of delivery for damage.
• Check whether a hissing sound due to negative pressure can be detected when opening the pipes of the indoor unit.

Requirements for installation site

• Observe minimum clearances (Figures 18 to 20).

Indoor Unit

• Do not install the indoor unit in a room in which open ignition sources (for example: open flames, an operating wall mounted gas boiler or an operating electric heating system) are in operation.
• The installation location must not be higher than 2000 m above sea level.
• Keep the air inlet and air outlet clear of any obstacles to allow the air to circulate freely. Otherwise poor performance and higher noise levels may occur.
• Keep TV, radio and and similar appliances at least 1 m away from the unit and the remote control.
• Mount the indoor unit on a wall that absorbs vibrations.
• Take minimum room area into account
  Table 37 Minimum room area

  Indoor Unit	Installation height [m]	Minimum room area [m2]
  CL7100i W 35 HE CL7100i W 50 HE	≥ 1.8	≥ 4

  If the installation height is lower, the floor area must be accordingly larger.

Outdoor Unit

• The outdoor unit must not be exposed to machine oil vapour, hot spring vapour, sulphur gas, etc.
• Do not install the outdoor unit directly next to water or where it is exposed to sea air.
• The outdoor unit must always be kept free of snow.
• There must be no disruption caused by extract air or operating noise.
• Air should be able to circulate freely around the outdoor unit, but the appliance must not be exposed to strong wind.
• Condensate that forms during operation must be able to drain off easily. Lay a drain hose if required. In cold regions, installation of a drain hose is not advisable as it could freeze.
• Place the outdoor unit on a stable base.

Unit installation

NOTICE
Incorrect assembly can cause material damage.
If the unit is assembled incorrectly, it may fall off the wall.

• Only install the unit on a solid flat wall. The wall must be capable of supporting the weight of the unit.
• Only use screws and wall plugs that are suitable for the wall type and weight of the unit.

Installing the indoor unit

• Determine the installation location, taking the minimum clearances into consideration (Fig. 18).
• Open the box at the top and lift the indoor unit out and up.
  
• Place the indoor unit with the moulded parts of the packaging face down.
  
• Undo screw and remove the mounting plate on the rear of the indoor unit.
• Attach the mounting plate centrally with the screws provided and level out.
  
• Fasten the mounting plate with a further four screws and wall plugs so that the mounting plate lies flat on the wall.
• Drill wall outlet for the piping.
  
  123

  	CL7100i W 35 HE CL7100i W 50 HE
  A [mm]	232.5
  B [mm]	45
  C [mm]	45
  D [mm]	65
  E [mm]	217
  F [mm]	435
  G [mm]	909
  H [mm]	435.5
  I [mm]	460
  J [mm]	242.5
  K [mm]	308
  L [mm]	45
  M [mm]	150
  N [mm]	258

  To ensure proper water drainage, make sure that the outlet is drilled at a slight downward angle, so that the outdoor end of the hole is lower than the indoor end by about 5 mm to 7 mm.
• Place the protective wall cuff in the outlet to protect the edges of the outlet and seal.
  The pipe fittings on the indoor unit are generally located behind the indoor unit. We recommend extending the pipes before mounting the indoor unit.
  • Establish pipe connections as described in Chapter "Pipework connection".
• Bend the piping in the required direction if necessary, and knock out an opening on the side of the indoor unit.
  
• After connecting the piping, proceed with the electrical connection (Chapter "Electrical connection").
• To connect the drain hose, refer to Chapter "Connecting condensate pipe to the indoor unit".
• Slowly route the wrapped bundle of piping, drain hose, and signal wire through the hole in the wall, according to Chapter "Air evacuation".
• Attach the indoor unit to the mounting plate (Fig. 28).
• Using even pressure, push down on the bottom half of the unit. Keep pushing down until the unit snaps onto the hooks along the bottom of the mounting plate.
  The unit should not jiggle or shift.
  • Check that unit is hooked firmly on mounting by applying slight pressure to the left and right-hand sides of the unit.
• Fold up the front cover and remove one of the two filter elements.
  
• Insert the filter which is included in the scope of delivery into the filter element, and mount the filter element again.

If it is necessary to take the indoor unit off the mounting plate:

• Pull the underside of the casing down in the area of the two recesses and pull the indoor unit forwards.
  

Installing the outdoor unit

• Place the box facing upwards.
• Cut and remove the packing straps.
• Pull the box up and off and remove the packaging.
• Prepare and mount a floor or wall mounting bracket, depending on the type of installation.
• Mount or hang the outdoor unit using the anti-vibration coupling for the feet which is supplied with the unit or is provided on site.
  For the different outdoor unit sizes and the distance between their mounting feet, see Chapter "Requirements for installation site".
• When installing on the floor or wall mounting bracket, attach the supplied drainage elbow and gasket at the bottom of the unit.
  
• Anchor the outdoor unit to the ground or to a wall-mounted bracket with a bolt (M10). Consider the unit dimensions in Table 122.
• Remove the cover for the pipe connections (Fig. 33).
• Establish pipe connections as described in Chapter "Pipework connection".
• Mount the cover for the pipe connections again.

Piping wrapping

To avoid condensation and water leakage, the connecting pipe must be wrapped with tape to ensure isolation from the air.

1. Drain hose
2. Signal wire
3. Refrigerant piping
4. Insulation material

• Bundle the drain hose, refrigerant pipes, and signal cable.
  While bundling these items together, do not intertwine or cross the signal cable with any other wiring.
• Make sure that the drain hose is at the bottom of the bundle. Putting the drain hose at the top of the bundle can cause the drain pan to overflow, which can lead to fire or water damage.
• Using adhesive vinyl tape, attach the drain hose to the underside of the refrigerant pipes.
• Using insulation tape, wrap the signal wire, refrigerant pipes, and drain hose tightly together.
• Double-check that all items are bundled.
• When wrapping the bundle, keep the ends of the piping unwrapped. You need to access them to test for leaks at the end of the installation process.

Pipework connection

Connecting refrigerant lines to the indoor unit

Risk of explosion and injury from presence of other gases or substances.
The presence of other gases or substances will lower the unit's capacity, and can cause abnormally high pressure in the refrigeration cycle.

• When connecting refrigerant piping, do not let substances or gases other than the specified refrigerant enter the unit.

Discharge of refrigerant due to leaky connections
Refrigerant may be discharged if pipe connections are incorrectly installed. Reusable mechanical connectors and flared joints are not allowed indoors.

• Tighten flared connections only once.
• Always make new flared connections after loosening.

• Before the works are carried out, verify the correct refrigerant type. The wrong refrigerant can lead to malfunction.
• Apart from the specified refrigerant, do not let air or other gases enter the refrigeration circuit.
• If the refrigerant leaks during installation, make sure you fully ventilate the room.

Copper pipes are available in metric and imperial sizes, the flare nut thread is however the same. The flared fittings on the indoor and outdoor unit are intended for imperial sizes.

• When using metric copper pipes, replace the flare nuts with nuts of a suitable diameter (Tab. 38).

Table 38 Key data of pipe connections

External diameter of pipe Ø [mm]	Tightening torque [Nm]	Flared opening diameter (A) [mm]	Flared pipe end	Pre-assembled flare nut thread
6.35 (1/4")	18-20	8.4-8.7		3/8"
9.53 (3/8")	32-39	13.2-13.5		3/8"
12.7 (1/2")	49-59	16.2-16.5		5/8"
15.9 (5/8")	57-71	19.2-19.7		3/4"
19 (3.4")	67-101	23.2-23.7		3/4"

• Determine pipe diameter and length.
• Cut the pipe to length using a pipe cutter.
  
• Deburr the inside of the pipe at both ends and tap to remove swarf.
• Insert the nut onto the pipe.
• Widen the pipe using a flaring tool to the size indicated in the tab. 38. It must be possible to slide the nut up to the edge but not beyond it.
• Connect the pipe and tighten the screw fitting to the torque specified in the tab. 38.
• Use two wrenches when you install or dismantle the piping, a common wrench and a torque wrench.
  
  1. Normal wrench
  2. Torque wrench
  3. Pipe socket cap
  4. Pipe fittings
• Repeat the above steps for the second pipe.

NOTICE
Reduced efficiency due to heat transfer between refrigerant pipes

• Thermally insulate the refrigerant lines separately.
• Fit the insulation on the pipes and secure.
  A minimum pipe run of 3 metres is required to minimise vibration & excessive noise.

Connecting refrigerant lines to the outdoor unit

• Unscrew the cover from the packed valve on the side of the outdoor unit.
• Remove protective caps from ends of valves.
• Align the flared pipe end with each valve, and tighten the flare nut as tightly as possible by hand.
• Using a spanner, grip the body of the valve.
  Do not grip the nut that seals the service valve.
• While firmly gripping the body of the valve, use a torque wrench to tighten the flare nut according to the correct torque values.
• Loosen the flaring nut slightly, then tighten again.
• Repeat the steps 3 to 6 for the remaining pipes.

Connecting condensate pipe to the indoor unit

The condensate drain of the indoor unit has two connections. A condensate hose and bung are mounted on these connections at the factory and can be replaced (Fig. 28).

• Only route the condensate hose with a slope.
• Connect the drain hose, attaching the hose on the same side of the piping to ensure proper drainage.
  
• Wrap the connection point firmly with Teflon tape to ensure a good seal and to prevent leaks.
  For the portion of the drain hose that will remain indoors:
  • Wrap it with foam pipe insulation to prevent condensation.
• Remove the air filter and pour a small amount of water into the drain pan to make sure that water flows from the unit smoothly.

Checking tightness

Observe the national and local regulations when carrying out the tightness test.

• Remove the caps on the three valves (Fig. 34, [1], [2] and [3]).
  
• Connect the Schrader opener [6] and pressure gauge [4] to the Schrader valve [1].
• Screw in the Schrader opener and open the Schrader valve [1].
• Leave valves [2] and [3] closed and fill the system with nitrogen until the pressure is 10% above the maximum operating pressure.
• Check whether the pressure is still the same after 10 minutes.
• Discharge the nitrogen until the maximum operating pressure is reached.
• Check whether the pressure is still the same after at least 1 hour.
• Discharge nitrogen.

Air evacuation

Air and foreign matter in the refrigerant circuit can cause abnormal rises in pressure, which can damage the air conditioner, reduce its efficiency, and cause injury.

• Use a vacuum pump and manifold gauge to evacuate the refrigerant circuit, removing any non-condensible gas and moisture from the system.

Evacuation should be performed upon initial installation and when unit is relocated. Only proceed with this step after checking the tightness of the system.
Before performing the evacuation:

• Make sure the connective pipes between the indoor and outdoor units are connected properly.
• Make sure all wiring is connected properly.

• Connect the charge hose of the manifold gauge to service port on the outdoor unit's low pressure valve.
• Connect another charge hose from the manifold gauge to the vacuum pump.
• Open the low pressure side of the manifold gauge. Keep the High Pressure side closed.
• Turn on the vacuum pump to evacuate the system.
• Run the vacuum for at least 15 minutes, or until the compound meter reads -76 cmHG (-10 Pa).
• Close the low pressure side of the manifold gauge, and turn off the vacuum pump.
• Check whether the pressure is still the same after 5 minutes.
• If there is a change in system pressure, refer to Chapter "Gas leak check" for information on how to check for leaks.
  -or-
• If there is no change in system pressure, unscrew the cap from the packed valve (high pressure valve).
• Insert the hexagonal wrench into the packed valve (high pressure valve) and open the valve by turning the wrench in a 1/4 counterclockwise turn. Close the valve after 5 seconds.
• Check the pressure gauge for one minute to make sure that there is no change in pressure.
  The pressure gauge should read slightly higher than atmospheric pressure.
• Remove the charge hose from the service port.
• Using the hexagonal wrench, fully open both the high pressure and low pressure valves.
• Tighten valve caps on all three valves (service port, high pressure, low pressure) by hand. If needed, use a torque wrench to tighten it further.

When opening valve stems, turn the hexagonal wrench until it hits against the stopper. Do not try to force the valve to open further.

Adding refrigerant

Some systems require additional charging depending on pipe lengths. The standard pipe length varies according to local regulations.
NOTICE
Malfunction due to incorrect refrigerant
The outdoor unit is filled with R32 refrigerant at the factory.

• If refrigerant needs to be topped up, only use the same refrigerant. Do not mix refrigerant types.

• Calculate the additional refrigerant to be charged according to Table
  Table 39

  Connective pipe length (m)	Air purging method	Additional refrigerant
  ≤ Standard pipe length	Vacuum pump	N/A
  > Standard pipe length	Vacuum pump	Liquid Side: Ø 6.35 (ø 0.25") R32: (Pipe length – standard length) x 12g/m (Pipe length – standard length) x 0.13oZ/ft

  If refrigerant needs to be topped up, only use the same refrigerant. Do not mix refrigerant types.

• Evacuate and dry system with a vacuum pump (Fig. 34, [5]) until the pressure is approx. −1 bar (or approx. 500 microns).
• Open the valve at the top [3] (liquid side).
• Use a pressure gauge [4] to check whether the flow is unobstructed.
• Open valve at bottom [2] (gas side).The refrigerant is distributed round the system.
• Afterwards, check the pressure ratios.
• Unscrew the Schrader opener [6] and close the Schrader valve [1].
• Remove the vacuum pump, pressure gauge and Schrader opener.
• Reattach the valve caps.
• Reattach the cover for pipe connections to the outdoor unit.

• After checking to make sure every connection is secure, use the cable clamp to fasten the signal cable to the unit. Screw the cable clamp down tightly.

Electrical connection

General notes

Risk to life from electric shock!
Touching live electrical parts can cause an electric shock.

• Before working on electrical parts, disconnect all phases of the power supply (fuse/circuit breaker) and lock the isolator switch to prevent unintentional reconnection.

• Work on the electrical system must only be carried out by an authorised electrician.
• An authorised electrician must determine the correct conductor cross-section and circuit breaker. The maximum current consumption of the technical data (see chapter "Technical Data") is decisive for this purpose.
• Observe safety measures according to national and international regulations.
• If you identify a safety risk in the mains voltage, or if a short circuit occurs during installation, inform the operator in writing and do not install the appliances, until the problem has been resolved.
• All electrical connections must be made in accordance with the electrical connection diagram.
• Only use a special tool to cut cable insulation.
• Connect the cable to the existing mounting clips/cable glands using suitable cable ties (scope of delivery).
• Do not connect any additional consumers to the mains power supply of the device.
• Do not mix up live and PEN conductor. This can lead to malfunctions.
• If the mains power supply is fixed, install an overvoltage protector and isolator which is designed for 1.5 times the maximum power input of the appliance.

Connecting the indoor unit

The indoor unit is connected to the outdoor unit using a 5-core communication cable of the type H07RN-F or H05RN-F. The conductor cross-section of the communication cable should be at least 1.5 mm².
NOTICE
Material damage due to incorrectly connected indoor unit
Voltage is supplied to the indoor unit via the outdoor unit.

• Only connect the indoor unit to the outdoor unit.

To connect the communication cable:

• Open the front cover.
  
• Using a screwdriver, open the wire box cover on the right side of the unit, then open the terminal block cover.
  
• Unscrew the cable clamp below the terminal block and place it to the side.
• Facing the back of the unit, remove the plastic panel on the bottom left-hand side.
• Feed the signal wire through this slot, from the back of the unit to the front.
• Facing the front of the unit, connect the wire according to the indoor unit's wiring diagram, connect the u-lug and firmly screw each wire to its corresponding terminal.

NOTICE
Unit malfunction.

• Do not mix up live and null wires.
• Place the wire cover on the front of the unit, and the plastic panel on the back.
• Route the cable to the outdoor unit.

Connecting the outdoor unit

A power cable (3-core) is connected to the outdoor unit and the communication cable is connected to the indoor unit (5-core). Use cables of the type H07RN-F with sufficient conductor cross-section and protect the mains power supply with a fuse (Table 40).
Table 40

• Electrical connections must be done according local regulations by certified electricians. Recommended values in table above may change depending on installation conditions.
• Undo the screw and remove the cover of the electrical connection.
  
• Secure the communication cable to the strain relief and connect to the terminals W, 1(L), 2(N), S and (assignment of wires to terminals same as indoor unit) (Fig. 37).
• Secure power cable to the strain relief and connect to the terminals L, N and .
• Reattach cover.

Electrical connection including radio equipment components

Table 41

Commissioning

Electrical and gas leak checks

Before the test run

Discharge of refrigerant due to leaky connections
Refrigerant may be discharged if pipe connections are incorrectly installed. Reusable mechanical connectors and flared joints are not allowed indoors.

• Tighten flared connections only once.
• Always make new flared connections after loosening.
• Make sure that mechanical connectors used indoors comply with ISO 14903.

Before the test run is performed:

• Confirm that the unit's electrical system is safe and operating properly.
• Check all flare nut connections and confirm that the system is not leaking.
• Confirm that all electrical wiring is installed in accordance with local and national regulations.

• Measure grounding resistance by visual detection and with grounding resistance tester.
  Grounding resistance must be less than 0.1Ω.

During the test run

• Use and electro-probe and multimeter to perform a comprehensive electrical leakage test.
• If electrical leakage is detected, turn off the unit immediately and call a licensed electrician to find and resolve the cause of the leakage.

Gas leak check

There are two different methods to check for gas leaks.

Soap and water method

• Use a soft brush to apply soapy water, liquid detergent or lead indicator to all pipe connection points on the indoor unit and the outdoor unit. The presence of bubbles indicates a leak.

Leak detector method

• If using leak detector, refer to the operation manual of the appliance for proper usage instructions.
  After confirming that all pipe connection points do not leak:
  • Replace the valve cover on the outside unit.

Functional test

The system can be tested once the installation including tightness test has been carried out and the electrical connection has been established:

• Connect the power supply.
• Switch on indoor unit with the remote control.
• Press the key to set the cooling mode ().
• Press arrow key () until the lowest temperature is set.
• Test cooling mode for 5 minutes.
• Press the key to set the heating mode ().
• Press arrow key () until the highest temperature is set.
• Test heating mode for 5 minutes.
• Ensure freedom of movement of horizontal louvre.

You cannot use the remote controller to turn on the COOL function when the ambient temperature is below 16°C. For that, use the MANUAL CONTROL button to test the COOL function:

• Lift the front panel of the indoor unit, and raise it until it clicks in place.
• The MANUAL CONTROL button is located on the right-hand side of the display box. Press it once to manually start in AUTO mode. Press it twice to activate the FORCED COOLING function.
• Perform the test run.

To switch on the cooling mode manually:

• Switch off the indoor unit.
• Press the key for the manual cooling mode twice with a thin object.
  
• Press the key on the remote control to exit cooling mode when it has been set manually.
  In a system with multi-split air conditioner, manual operation is not possible.

Table 42 Checklist

Handover to the user

• When the system has been set up, hand over the installation manual to the customer.
• Explain to the customer how to use the system, referring to the operation manual.
• Advise the customer to carefully read the operation manual.

Troubleshooting

Faults with indication

Risk to life from electric shock!
Touching live electrical parts can cause an electric shock.

• Before working on electrical parts, disconnect all phases of the power supply (fuse/circuit breaker) and lock the isolator switch to prevent unintentional reconnection.

If a fault occurs during operation, a fault code appears in the display (e.g. EH 03).
If a fault is present for more than 10 minutes:

• Briefly interrupt the power supply and switch the indoor unit back on.

If a fault persists:

• Call customer service and provide the fault code and details of the appliance.

Table 43

1. Leak detection not active, if in a system with multi-split air conditioner.

1. Conflicting operating mode of indoor unit. This can occur in a multi split system, when different units operate in different modes. To solve the problem, adjust operating mode accordingly.

Note: units set to cooling/dry/fan mode will be affected with a mode conflict as soon as one other unit in the system is set to heating (heating is the priority system mode).

Faults not indicated

If faults occur during operation that cannot be eliminated:

• Call customer service about the fault, providing details of the device.

Table 44

Technical Data

Table 45

General safety instructions

Notices for the target group
These installation instructions are intended for qualified persons who are skilled in dealing with refrigeration engineering and HVAC technology and also electrical systems. As a matter of course, the appliance shall be installed in accordance with national wiring regulations. All system-relevant instructions must be observed. Failure to comply with instructions may result in material damage and personal injury, including danger to life.

• Before carrying out the installation, read the installation instructions of all system components.
• Observe the safety instructions and warnings.
• Follow national and regional regulations, technical regulations and guidelines.
• Record all work carried out.

Intended use
The indoor unit is intended for installation inside the building with connection to an outdoor unit and further system components, e.g. controls.
The outdoor unit is intended for installation outside the building with connection to an indoor unit or units and further system components, e.g. controls.
The air conditioning system is intended for commercial/residential use only where temperature deviations from adjusted set points do not lead to damage of living beings or materials. The air conditioning system is not suitable to set and maintain desired absolute humidity levels precisely.
Any other use is considered inappropriate. Any damage that may result from misuse is excluded from liability.
In particular, the air conditioner shall not be operated in a wet room such as a bathroom or laundry room.
For installation at special locations (underground garage, mechanical rooms, balcony or at any semi-open areas):

• First refer to the requirements for the installation site in the technical documentation.

General dangers posed by the refrigerant

• This appliance is filled with refrigerant R32. If the refrigerant gas gets into contact with hot surfaces, it may cause a fire or generate toxic gas.
• Thoroughly ventilate the room if refrigerant leaks during the installation.
• Check the tightness of the system following the installation.
• Do not to let any other substance than the specified refrigerant (R32) into the refrigerant cycle.

Safety of electrical devices for domestic use and similar purposes
The following requirements apply in accordance with EN 60335-1 in order to prevent hazards from occurring when using electrical appliances:
"This appliance can be used by children of 8 years and older, as well as by people with reduced physical, sensory or mental capabilities or lacking in experience and knowledge, if they are supervised and have been given instruction in the safe use of the appliance and understand the resulting dangers. Children shall not play with the appliance. Cleaning and user maintenance must not be performed by children without supervision."
"If the power cable is damaged, it must be replaced by the manufacturer, its customer service department or a similarly qualified person, so that risks are avoided."

Handover to the user
When handing over the air conditioning system, explain the operation and operating conditions to the user.

• Explain operation – with particular emphasis on all safety-related actions.
• Highlight the following points in particular:
  • Point out that modifications or repairs may be carried out only by an approved contractor.
  • To ensure safe and environmentally compatible operation, an annual inspection, and also cleaning and maintenance if required, must be carried out.
• Point out the possible consequences (personal injury and possible danger to life or material damage) of not carrying out inspection, cleaning and maintenance correctly, or omitting it altogether.
• Hand over the installation and operating instructions to the user for safekeeping.

Notices regarding these instructions
The figures are shown together at the end of these instructions. The text contains references to the figures.
Depending on the model, the products may be different to those shown in these instructions.