Features And Operation; Protection Of The Air Conditioner; Operation - Bosch Climate 5000 Series Installation Instructions Manual

13 Features and Operation

13.1 Protection of the Air Conditioner

Compressor protection
Compressor Anti Short Cycle = 3 minutes
Anti-cold air
The unit is designed not to blow cold air on HEAT mode, when the indoor unit
evaporator coil is in one of the following three conditions and the set temperature
has not been reached.
A) When heating has just started
B) During defrost cycle
C) Low temperature heating
Defrost Cycle
Frost may be generated on the outdoor unit during a heat cycle when outdoor
temperature is low and humidity is high resulting in lower heating effi ciency in the
air conditioner.
Under these conditions, the air conditioner will stop heating operations and start
defrosting automatically.
The time to defrost may vary from 4 to 10 minutes, depending the outdoor
temperature and the amount of frost buildup on the outdoor unit.
Auto-Restart
In case of power failure, the system will immediately stop. When power returns, the
unit will restart with the same settings as before it lost power.

13.2 Operation

White mist emerging from the indoor unit
A white mist may be generated due to a large temperature diff erence between air
inlet and air outlet on COOL mode in places with high relative humidity.
A white mist may be generated due to moisture created in the defrosting process
when the air conditioner restarts in HEAT mode operation after defrosting.
Noise coming from the air conditioner
You may hear a low hissing sound when the compressor is running or has just
stopped running. This sound is refrigerant equalizing which is normal.
A low hissing sound may be heard due to the louver restoring itself to its original
position when power is fi rst turned on.
Dust blowing out from the indoor unit.
This happens when the air conditioner has not been used for a long time or during
its fi rst use.
The air conditioner turns to FAN ONLY mode during COOL or HEAT mode.
When the indoor temperature reaches the set temperature setting, the compressor
will stop automatically, and the air conditioner turns to FAN only mode. The
compressor will start again when the indoor temperature rises on COOL mode or
falls on HEAT mode past the set point. Moisture may form on the surface of the
indoor unit when cooling occurs in relatively high humidity (generally higher than
80% relative humidity). Adjust the horizontal louver to the maximum air outlet
position and select HIGH fan speed to reduce and eliminate moisture.
Bosch Climate 5000 Series Multi Zone Ductless Air Conditioner / Heat Pump (06.2022)
Operation mode selection
While two or more indoor units are simultaneously operating, make sure the heat or
cool modes do not confl ict with each other. The heat mode claims precedence over
cooling mode. If the unit initially started to operate in HEAT mode, the other units
can operate in HEAT mode only. For example: If the unit initially started operates
under COOL mode, other units cannot operate in heat mode. If one of the unit
selects HEAT mode while the others are in cool mode, the other operating units will
stop operation and display error code.
Optimal operation
To achieve optimal performance, please note the following:

Adjust the direction of the air flow so that it is not blowing directly on
people.

Adjust the temperature to achieve the highest possible level of comfort.
Do not adjust the unit to excessive temperature levels.

Close doors and windows in COOL mode or HEAT mode.

Use the TIMER ON button on the remote controller to select a time you
want to start your air conditioner.

Do not place any object near the air inlet or air outlet, as the efficiency
of the air conditioner may be reduced and the air conditioner may stop
running.

Clean the air filter periodically, otherwise cooling or heating performance
may be reduced.

Do not operate unit with horizontal louver in closed position.
Installation Instructions
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