Installation 
 
1. Installation Guides 
WARNING! 
(1)  Installation should be performed by GREE appointed servicemen, or improper installation would 
lead to unusual operation, water leakage, electric shock or fire hazard. 
(2)  The unit should be installed on the foundation which is capable of supporting the unit, or the unit 
would fall off or even lead to personal injury. 
(3)  All  electric  installation  should  be  done  by  electrician  in  accordance  with  local  laws  and 
regulations, as well as the User‘s Manual and this Service Manual. Besides, the special power 
lines should be used, as any improper line would lead to electric shock or fire hazard. 
(4)  All electric lines should be safe and secured reliably. Be sure the terminal board and electric 
lines will not be affected by any external force, or it would lead to fire hazard. 
(5)  The electric lines should run properly to make the cover of the electric box secured tightly, or it 
would cause the terminal board overheated or cause electric shock or fire hazard. 
(6)  Cut off the power supply before touching any electric element. 
CAUTION! 
(1)  The unit should be grounded properly and the ground line is not allowed to connect with the gas 
line, water line, lightning rod or phone line. 
(2)  The breaker should be installed, or it would lead to electric shock. 
(3)  The drain pipe should be installed in accordance with the User‘s Manual and this Service Manual 
to ensure free drainage, and the drain pipe should be insulated against condensation. Once the 
drain pipe is installed improperly, it would lead to water leak which then will damps the ceiling 
and furniture. 
(4)  Do not place the unit where there is oil fog, like kitchen, or the plastic would be aged, broken off 
or the polluted evaporator would lead to water leak and poor performance. 
(5)  Do not place the unit where there is corrosive gas (like sulfur dioxide), or the corroded copper 
tubes or welded joint would lead to refrigerant leakage. 
(6)  Do not place the unit where there is inflammable gas, carbon fiber, inflammable dust or volatile 
combustible, as they would lead to fire hazard. 
SAFETY! 
(1)  Always use safety outfits at the construction site. 
(2)  No smoking and no drunken operation are allowed at the construction site. 
(3)  Wear no gloves and tighten the cuff when operating the machinery and electrical equipment. Do 
not maintain it during operation. 
(4)  Use the abrasive-disk cutter and stand at the side of the rotating abrasive disk. 
(5)  Clean the opening when installing the riser pipe, and then cover it tightly. Do not throw down any 
material. 
(6)  The  use  of  the  electric  and  gas  welders  should  be  approved  firstly.  Once  used,  a  fire 
distinguisher should be prepared and a service man should be there always. There should be no 
inflammable and explosive substances around the welding site. 
(7)  A platform should be set up when working high above the ground.