3
Technical Information
Service Manual
HC R290 is a ammable refrigerant and can form explosive mixtures in low concentrations. To
minimise the risk of re or explosion, the system must be installed in a room with a minimum oor
area.
Unless there are further requirements, standards and legislation of the country within
which the equipment is installed may apply. Any technicians that works on GREE
hydrocarbon air– conditioners must be competent in the safe handling of flammable
refrigerants, in addition to being in possession of knowledge and skills to maintain best
refrigeration installation and servicing practices.
There are already training activities in place for engineers, technicians and sales staff
to provide professional knowledge and skills for the handling of HC refrigerants and
refrigeration systems operating with HCs.
Get trained and have your
“HC Refrigeration Professional” certication!
Having a
malfunction
while
commissioning,
immediately
disconnect the
system from
mains!
Pay attention to
the room size for
indoor unit
installation!
For specific in-
formation refer
page XXX of this
manual.
Minimum Room Size
Get your Best
Practices
knowledge and
skills update for
HC refrigerants
and be
certificated for
these jobs!
The Symbols Used in this Manual are as Follows
ONLY original
GREE (OEM)
spare-parts are
permitted for
Service and Re-
pair!
Working on components with safety-relevant functions jeopardise the safe operation of the
installation. In case it is necessary to replace components, only use approved parts from GREE
Electric, the Original Equipment Manufacturer(OEM) or Gree released or authorised components.
The system contains the refrigerant R-290 (propane). This condition requires special safety
precautions to be observed. Maintenance for the system is strictly prohibited
.
At the installation
site, no matter what kind of activities are executed, smoking is strictly prohibited!
Likewise, ensure the installation site is well ventilated. For further details as far as it concerns the
handling of the refrigerant R-290 (propane) .
Electric operations (installation, repair, modication, maintenance, adjustment) have to be fullled
by trained and authorised personnel only. When dealing with electrical issues, the specific
rules of the country within which the equipment is installed must be followed, in addition to the
instructions within this manual.
When working on the equipment or parts of it, the system has to be deenergised (by master
switch, circuit breaker or separate cut-out) and made safe against restart of the system. Do not
reconnect the system to the electric circuit until all work is done and all connections are tested.
If handled unsafely or unprofessionally, severe electric shocks can occur. Consider the wiring
diagram and follow the instructions of this manual very carefully whilst working on electrical parts.
Wrong connections or incorrect grounding may lead to severe injuries and mortal danger.
Ground the system according to the particular requirements of the country within which the
equipment is installed.
Connect all the wires properly and durably. Loose cables may lead to overheating or re
Proceed
according the
manuals
Instructions!
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