Gree GUD71PHS1/A-S

GREE U-Match 6 SERIES UNIT SERVICE MANUAL
1
Safety Notice on Maintenance
PROHIBITED:
(1) Do not pierce or burn.
(2) Please note that refrigerant may be odorless.
(3) 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).
(4) Indoor unit adopts special joints that can’t be detached. The installation method is the same with the
common joints. However, because the joint can’t be detached, if it is badly connected and causes
leakage, it needs to be cut and replaced by a new one through welding.
(5) Using unsuitable parts or tools may lead to electric shock or fire hazard.
(6) If refrigerant leaks during maintenance, please ventilate the room immediately. Heavy leakage may
lead to breathing difficulty, severe injury or death.
(7) Disconnect power before disassembling the appliance for maintenance.
(8) The appliance should be maintained and cared by authorized technical personnel with necessary
qualifications.
(9) The appliance shall be stored in a well-ventilated area where the room size corresponds to the
room area as specified for operation.
(10) The air conditioner should be grounded to avoid electric shock. Do not connect the ground wire to
gas pipe, water pipe, lightning arrester or telephone wire.
(11) According to federal/state/local laws and regulations, all packages and transportation materials,
including nails, metal or wooden parts, and plastic packing material, must be treated in a safe way.
WARNING:
(1) If the working place is more than 2ms high, please wear a safety helmet, gloves and a safety belt.
(2) Never mix any other substances except the specified refrigerant into the refrigerant circuit.
(3) When re-locating the appliance, check whether the new location is strong enough to withstand the
weight of the appliance.
(4) If there is refrigerant leak, please fix the leak before charging in the refrigerant. After refrigerant is
charged, check for refrigerant leaks. If you cannot spot the leak, stop the maintenance work. Please
evacuate the system and close the service valve to prevent refrigerant leaking into the room.
(5) Prepare suitable tools and protectors.