Bosch Climate 5000 Series Manual

Key to Symbols and Safety Instructions

Key to Symbols

Warnings
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 keywords are defined and can be used in this document:

Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a hazardous situation which, if not avoided, could result in minor to moderate injury.
NOTICE
NOTICE is used to address practices not related to personal injury.

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

Explanation of Symbols Displayed on the Indoor Unit/Outdoor Unit

Table 1

Symbol
	This symbol shows that this appliance used a flammable refrigerant. If the refrigerant is leaked and exposed to an external ignition source, there is a risk of fire.
	This symbol shows that the operation manual should be read carefully.
	This symbol shows that a service personnel should be handling this equipment with reference to the installation manual.
	This symbol shows that information is available such as the operating manual or installation manual.

Unit Specifications and Features

Achieving Optimal Performance

Optimal performance for the COOL, HEAT, and DRY modes can be achieved in the following temperature ranges. When your air conditioner is used outside of these ranges, certain safety protection features will activate and cause the unit to perform less than optimally.

Piping extension beyond flare form
Table 2

When the outside temperature is below 0°C (32°F), we strongly recommend keeping the unit plugged in at all times to ensure smooth ongoing performance. A base pan heater is used in the outdoor unit to prevent ice build-up. Ice may build up if the unit is unplugged.

Other Features

Auto-Restart
If the unit loses power, it will automatically restart with the prior settings once power has been restored.

Heat Exchanger Dust Removal Function
This feature helps keep the outdoor coil cleaner and may extend the duration between regular maintenance intervals depending on local conditions. When the unit is turned off, a 10 seconds delay occurs then the outdoor fan runs in reverse rotation for 70 seconds to blow off loose accumulated dust and debris.

Refrigerant Leakage Detection
When the system detects a malfunction of the refrigerant, the indoor unit will automatically display the following error codes:

• "EL0C (System lacks refrigerant)",
• "EHC1 (Refrigerant sensor detects leakage)",
• "EHC2 (Working condition of the refrigerant sensor is out of range and leakage is detected)",
• "EHC3 (Working condition of the refrigerant sensor is out of range)", or
• "ECC1 (Other indoor unit refrigerant sensor detects leakage (Multi-zone)".
• When "EHC1" or "EHC2" error occurs, the buzzer will continue to beep for 5 to 6 minutes before stopping. You can also press any button on the remote controller to stop the buzzer.

Follow Me
Once the follow me function is active, the remote control will send a signal every 3 minutes, with no beeps. The unit automatically sets the temperature according to the measurements from the remote control.

For a detailed explanation of your unit's advanced functionality (such as TURBO mode and its self-cleaning functions), refer to the Remote Control Manual.

Energy Saving Tips

• DO NOT expose the unit to excessive temperature levels.
• Keep curtains closed during heating and cooling operation.
• Doors and windows should be kept closed to keep cool or warm air in the room.
• DO NOT place objects near the air inlet and outlet of the unit. This will reduce the efficiency of the unit.
• Set a timer and use the built-in SLEEP/ECONOMY mode if applicable.
• If you don't plan to use the unit for a long time, remove the batteries from the remote control.
• Clean the air filter every two weeks. A dirty filter can reduce cooling or heating efficiency.
• Adjust louvers properly and avoid direct airflow.

Manual Operation (Without Remote)

How to Operate Your Unit Without the Remote Control

In the event that your remote control fails to work, your unit can be operated manually with the MANUAL CONTROL button located on the indoor unit. Note that manual operation is not a long-term solution, and that operating the unit with your remote control is strongly recommended.

To operate your unit manually:

1. Locate the MANUAL CONTROL button on the left-hand side of the display board.
   
2. Press the MANUAL CONTROL button one time to activate FORCED AUTO mode. In this mode, the unit will keep running with the temperature set point fixed at 75°F (24°C).
3. Press the MANUAL CONTROL button again to activate FORCED COOLING mode. In this mode, the unit will stay at the forced cooling mode for 30 minutes and change to the force auto mode.
4. Press the MANUAL CONTROL button a third time to turn the unit off.

NOTICE
Improper operation!
The manual button is intended for testing purposes and emergency operation only. Please do not use this function unless the remote is lost and it is absolutely necessary. To restore regular operation, use the remote control to activate the unit.

Care and Maintenance

Cleaning Precautions

Personal injury, product damage!

• Any maintenance and cleaning of indoor and outdoor units must be performed by qualified service personnel only.
• Any unit repairs must be performed by qualified service personnel only.

Electrical hazard!
Always turn off your air conditioner system and disconnect its power supply before cleaning or maintenance.

• Do not use chemicals or chemically treated cloths to clean the unit.
• Do not use benzene, paint thinner, polishing powder or other solvents to clean the unit. They can cause the plastic surface to crack or deform.

Cleaning Your Air Filter

NOTICE
Product damage!
Do not touch air freshening filter for at least 10 minutes after turning off the unit.

Electrical hazard!

• Before changing the filter or cleaning, turn off the unit and disconnect its power supply.
• When removing the filter, do not touch metal parts in the unit. The sharp metal edges can cut you.
• Do not use water to clean the inside of the indoor or outdoor unit. This can destroy insulation and cause electrical shock.
• Do not expose filter to direct sunlight when drying. This can shrink the filter.

A clogged air conditioner can reduce the cooling efficiency of your unit, and can also be bad for your health. Make sure to clean the filter once every three months.

9k - 18k models

1. With the rear ventilated model, remove the filter as shown below.
   
2. With the bottom ventilated model, remove the filter as shown below.
   

24k - 60k models

1. Clean dirt from the air filter using a vacuum cleaner or washing with water.
   
   • If dirt is conspicuous, wash with a neutral detergent in lukewarm water.
   • If hot water (40°C /104°F or more) is used, it may deform the filter.
2. Rinse the filter with clean water and allow it to air-dry. DO NOT let the filter dry in direct sunlight.
3. Reinstall the filter.

Repairing Refrigerant Leaks

Refrigerant Leak Detection System
In the event of a refrigerant leak, the LCD screen will display "EC" and the LED indicator light will flash.

Contains refrigerant!
If the refrigerant leaks, turn off the system and any other combustible heating devices, ventilate the room and call a certified technician immediately. Refrigerant is both toxic and flammable. DO NOT use the system until the leak is repaired.
NOTICE
Improper operation, product damage!
When adding refrigerant, use ONLY R454B. This product cannot be used with any other type of refrigerant!

Maintenance – Long Periods of Non-Use

When the system is to be used again:

1. Remove any obstacles blocking the vents of both the indoor and outdoor units.
2. Clean the air filter of the indoor unit. Reinstall the clean, dry air filter in its original position.
3. Turn on the main power switch at least 12 hours prior to operating the unit.

Storing the unit while not in use:

1. Run the system on FAN mode for 12 hours in a warm room to dry it and prevent mold.
2. Turn off the system and unplug it.
3. Clean the air filter according to the instructions. Reinstall the clean, dry filter before storing.
4. Remove the batteries from the remote control.

Troubleshooting

System malfunction!
If ANY of the following conditions occurs, turn off the unit immediately!

• The operation light continues to flash rapidly after the unit has been restarted.
• The remote control buttons do not work.
• The unit continually trips fuses or circuit breakers.
• A foreign object or water enters the air conditioner.
• Other abnormal situations.

DO NOT ATTEMPT TO FIX THESE YOURSELF! CONTACT A QUALIFIED SERVICE PERSON

If a problem persists, contact a local dealer or a qualified service provider. Provide them with a detailed description of the unit malfunction as well as your model number and unit serial number.

Common Issues

System failure!
Most of following problems are not a malfunction, but please contact an Authorized Service Provider if the problem is uncertain.
Table 3

Troubleshooting Tips

Table 4

Error Codes

System failure!
If below error codes appear, please turn off the system and contact an Authorized Service Provider.
When the indoor unit encounters a recognized error, then an error code will be displayed on the HMI screen with letters first, then numbers. These error codes are described in the following table below.
Table 5

Safety

Please read safety precautions before installation
Incorrect installation due to ignoring instructions can cause serious damage or injury.

Improper or dangerous operation!
Installation must be performed by a licensed contractor, and per the instructions in the installation manual. Improper installation can cause water leakage, electrical shock, or fire.
In North America, installation must be performed in accordance with the requirement of NEC (National Electric Code) and CEC (Canadian Electric Code) by licensed and qualified personnel only.
Only contact a licensed contractor for repair or maintenance of this unit.

Electrical hazard!
Do not modify the length of the power supply cord or use an extension cord to power the unit.
Do not share the electrical outlet with other appliances. Improper or insufficient power supply can cause fire or electrical shock.

Contains lead!
This product can expose you to chemicals including Lead and Lead components, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Installation requirements!
Installation must be performed by a licensed contractor, and per the instructions in the installation manual. Improper installation can cause water leakage, electrical shock, or fire.
In North America, installation must be performed in accordance with the requirement of NEC (National Electric Code) and CEC (Canadian Electric Code) by licensed and qualified personnel only.
Only contact a licensed contractor for repair or maintenance of this unit.
Only use the included accessories, parts, and specified parts for installation. Using non-standard parts can cause water leakage, electrical shock, fire, and can cause the unit to fail.
Install the unit in a solid location that can support the unit's weight. If the chosen location cannot support the unit's weight, or the installation is not done properly, the unit may drop and cause serious injury and/or damage.

Electrical hazard!
For all electrical work, follow all local and national wiring standards, regulations, and the Installation Manual. The power supply to the outdoor unit requires a service disconnect at the unit. Only use a dedicated circuit. Never share a power source connected to this system. Insufficient electrical capacity or defects in electrical work can cause electrical shock or fire.
For all electrical work, use the specified cables. Connect cables tightly, and clamp them securely to prevent external forces from damaging the terminal. Improper electrical connections can overheat and cause fire, and may also cause shock.
All wiring must be properly arranged to ensure that the control board cover can close properly. If the control board cover is not closed properly, it can lead to corrosion and cause the connection points on the terminal to heat up, catch fire, or cause electrical shock.
In certain functional environments, such as kitchens, server rooms, etc., the use of specially designed air-conditioning units is highly recommended.
If the power supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons such as a licensed electrician in order to avoid a hazard.
The product must be properly grounded at the time of installation, or electrical shock may occur.
If connecting power to fixed wiring, an all-pole disconnection device which has at least 3mm clearances in all poles, and have a leakage current that may exceed 10mA, the residual current device(RCD) having a rated residual operating current not exceeding 30mA, and disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.

Fire hazard!
For units that have an auxiliary electric heater, do not install the unit within 1 meter (3 feet) of any combustible materials.
Do not install the unit in a location that may be exposed to combustible gas leaks. If combustible gas accumulates around the unit, it may cause fire.
Do not operate your air conditioner in a wet room such as a bathroom or laundry room. Too much exposure to water can cause electrical components to short circuit.

NOTICE
Property damage!
Install condensate drainage piping according to the instructions in this manual. Improper condensate drainage may cause water damage to your home and property.

Contains refrigerant!
This air-conditioning unit contains fluorinated gases. For specific information on the type of gas and the amount, please refer to the relevant label on the outdoor unit itself.
Installation, service, maintenance and repair of this unit must be performed by a certified technician.
Product removal and recycling must be performed by a certified technician.
If the system has a leak-detection system installed, it must be checked for leaks at least every 12 months.
When the unit is checked for leaks, proper record-keeping of all checks is strongly recommended.

NOTICE
Product damage!
Fuse specifications: The air conditioner's circuit board (PCB) is designed with a fuse to provide overcurrent protection. The specifications of the fuse are printed on the circuit board, for example: T3.15AL/250VAC, T5AL/250VAC, T3.15A/250VAC, T5A/250VAC, T20A/250VAC, T30A/250VAC,etc.
Only blast-proof ceramic fuses can be used.

Flammable refrigerant!
Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
The appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater).
Do not pierce or burn.
Be aware that refrigerants may not contain an odor.

Fire, personal injury, product damage!
Remove all static electricity before touching units.

NOTICE
Improper operation, product damage!
Generation 4 Mini-Split products use R454B refrigerant and cannot be combined with models from previous Mini-Split generations (R410A refrigerant).
In addition, you must ONLY use R454B if additional refrigerant needs to be added into the system. Do NOT use any other refrigerant type.