Bosch CA Series - Refrigerant Safety Warnings

Installation, Operation, and Maintenance Manual
CA Series Heat Pumps -8733851021 (2025/04) US
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WARNING
Fire hazard!
DO NOT use means to accelerate the defrosting process or to clean, unless
recommended in these instructions.
WARNING
Fire hazard!
The appliance must be stored in a room without continuously operating ignition
sources (for example: open flames, an operating gas appliance, or an operating
electric heater).
WARNINGWARNING
Fire hazard!
Auxiliary devices that may be a POTENTIAL IGNITION SOURCE must NOT be
installed in the duct work. Examples of such POTENTIAL IGNITION SOURCES are
hot surfaces with a temperature exceeding 700 °C and electric switching devices
such as circuit breakers, contactors, motor starters, disconnect switches, etc.
CAUTION
Personal injury hazard!
Sheet metal parts may have sharp edges or burrs. Use care and wear appropriate
protective clothing and gloves when handling parts.
NOTICE
Product damage
NOTICE
!
To avoid equipment damage, DO NOT use these units as a source of heating or
cooling during the construction process. Doing so may affect the unit's warranty.
The mechanical components and filters will quickly become clogged with
construction dirt and debris, which may cause system damage or failure.
WARNING
Personal injury hazard!
This appliance is not intended for use by people (including children) with reduced
physical, sensory, or mental capabilities, or with lack of experience and knowledge,
unless they are supervised or have been given instruction concerning use of the
appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
1.2.1 Refrigerant Safety Warnings
Refrigerant
Safety Group
A2L
DANGER
Poisonous gas!
Poisonous gas can be created when refrigerant (R-454B) is exposed to open
ames.
WARNING
Risk of re!
Flammable Refrigerant Used—To be repaired only by trained service personnel. DO
NOT puncture refrigerant tubing.
WARNING
Risk of re!
Flammable Refrigerant Used—Dispose of properly in accordance with federal or
local regulations.
WARNING
Personal injury hazard!
DO NOT pierce or burn refrigerant lines.
WARNING
Asphyxiation hazard!
Be aware that refrigerants may not contain an odor.
To avoid the release of refrigerant into the atmosphere, the refrigerant circuit of
this unit must be serviced only by technicians who meet local, state, and federal
proficiency requirements.
All refrigerant discharged from this unit must be recovered WITHOUT exception.
Technicians must follow industry accepted guidelines and all local, state, and
federal statutes for the recovery and disposal of refrigerants. If a compressor is
removed from this unit, refrigerant circuit oil will remain in the compressor. To
avoid leakage of compressor oil, refrigerant lines of the compressor must be sealed
after it is removed.