Heinner HDU-M20, Instruction Manual

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Explanation of symbols on the unit (For R32/R290 refrigerant only):
WARNING
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.
CAUTION
This symbol shows that the operation manual should be
read carefully.
CAUTION
This symbol shows that a service personnel should be handling
this equipment with reference to the installation manual.
CAUTION
This symbol shows that information is available such as the
operating manual or installation manual.
1.
Transport of equipment containing flammable refrigerants. See transport regulations
2. Marking of equipment using signs See local regulations
3. Disposal of equipment using flammable refrigerants See national regulations.
4. Storage of equipment/appliances. The storage of equipment should be in accordance
with the manufacturer's instructions.
5. Storage of packed (unsold) equipment. Storage package protection should be
constructed such that mechanical damage to the equipment inside the package will not
cause a leak of the refrigerant charge. The maximum number of pieces of equipment
permitted to be stored together will be determined by local regulations.
6. Information on servicing
a. Checks to the area
Prior to beginning work on systems containing flammable refrigerants, safety checks are
necessary to ensure that the risk of ignition is minimised. For repair to the refrigerating
system, the following precautions shall be complied with prior to conducting work on the
system.
b.
Work procedure
Work shall be undertaken under a controlled procedure so as to minimise the risk of a
flammable gas or vapour being present while the work is being performed.
c.
General work area
All maintenance staff and others working in the local area shall be instructed on the nature
of work being carried out. Work in confined spaces shall be avoided. The area around the
workspace shall be sectioned off. Ensure that the conditions within the area have been
made safe by control of flammable material.