44
Duct Type Split Air Conditioner
Service Manual
Unit: mm
Models A B C D E F
FG40/BNa-M, FGR40/BNa-M 1780 1040 868 1450 347 555
1.4 Installation Clearance Data 
 
Air supply
Air return
Suspender 
Hook
Flat 
washer
Spring 
washer 
Nut
installation of suspender
>1000
>1000
>560
1.5 Drain Piping Work 
A
B
For easy drainage of the condensation water, It should be installed with a downward gradient. To avoid 
ployed as shown above and the height of the water seal could be determined by the pressure of the drain hose. 
Drain hose is in negative pressure state: A = B
≥
P/10+20 (mm).
Drain hose is in positive pressure state: A
≥
30mm, B
≥
P/10+20 (mm).
2 OUTDOOR UNIT INSTALLATION 
2.1 Before Installation 
1).  After receipt of the unit, please check the unit for damage during transport. If there is external or 
internal damage, please notify the company by written form.  
2).  After receipt of the unit, check and inspect the unit and accessories according to package list for 
models, damage of unit body and specication and quantity of accessories.  
3).  Confirm conveying route and method of the unit to avoid damage to the unit and possible injuries. 
For protection and safety of the unit, it is recommended to convey the unit together with the packing 
container, even in special conditions.
4).  Check the installation foundation for rmness. If the unit is installed on the metal place, ensure electric 
insulation and conformability to relative criteria.  
5).  Ensure installation site away from the storage area with inammable and explosive materials to avoid 
explosion or re.