U-Match Series DC Inverter Service Manual 
80 
2 OUTDOOR UNIT INSTALLATION 
2.1 Before Installation 
After  receiving  the  machine,  please  check  for  any  transport  damage.  If  finding  any  surface  or 
internal damage, please immediately report to the transport company or equipment company in writing. 
After receiving the machine, please check the unit and accessories in reference to the packing list. 
Ensure  that  the  model  is  correct  and  the  machine  is  in  good  condition.  Please  also  check  if  the 
specification and quantity of accessory parts are correct. 
Determine the correct handling route and methods, thus to avoid damaging the unit or causing 
possible  hazard.  For  the  sake  of  protection  and  safety,  it  is  suggested  to  move  the  unit  with  the 
packaging box. Even though it is not permitted to do like this under special occasions, do not remove the 
packaging box, thus to avoid loosening or falling during handling. 
Confirm if the installing foundation is solid. When this unit is to be installed on the metal section of 
the building, make sure that the electrical insulation must comply with applicable standards. 
Ensure  that  the  place  of  installation  is  far  from  the  area  where  the  inflammable  or  explosive 
substances are stored, thus to avoid possible explosion or fire due to leakage. 
2.2 Installation Site 
If possible, do not install the unit where it will be exposed to direct sunlight. (If necessary, install a 
blind that does not interfere with the air flow.) 
(1) Install the outdoor unit in a place where it will be free from being dirty or getting wet by rain as 
much as possible. 
(2) Install the outdoor unit where it is convenient to connect with the indoor unit. 
(3) Install the outdoor unit where the condensate water can be drained out freely during heating 
operation.   
(4) Do not place animals and plants in the path of the warm air. 
(5) Take the air conditioner weight into account and select a place where noise and vibration are 
small. 
(6) Install the outdoor unit where is capable of withstanding the weight of the unit and generates as 
less noise and vibration as possible. 
(7) Provide the space shown in Figure 3-2-1, so that the air flow is not blocked. Also for efficient 
operation, leave three of four directions of peripheral constructions open.