Super Free Match 
 Service Manual 
 
    PRODUCT 
21 
4.3  Product Data of BU Module 
Model FXB3A-K FXB5A-K 
Maximum numbers of connectable indoor units  3  5 
Power Supply  V-Ph-Hz  220~240-1-50 
Gas pipe(inner diameter)  mm  Φ15.9  Φ15.9 
Liquid pipe(inner diameter)  mm  Φ9.52  Φ9.52 
Connection port to 
outdoor unit 
Connection Method  Flare  Flare 
Gas pipe(inner diameter)  mm  Φ9.52  Φ9.52 
Liquid pipe(inner diameter)  mm  Φ6.35  Φ6.35 
Connection port to 
indoor unit 
Connection Method  Flare  Flare 
External dia.  mm  Φ31  Φ31 
Drainage pipe 
Thickness mm 3 3 
Net weight/Gross weight  kg  8/10  9/11 
 
Notes: 
a. The rated cooling capacity data is measured under the following work condition: Indoor Temperature is 27℃
DB, 19℃WB. Outdoor Temperature is 35℃DB. The rated heating capacity data is measured under the following 
work condition: Indoor Temperature is 20℃DB. Outdoor Temperature is 7℃DB, 6℃WB. 
b. The data will change with the change of products. Refer to those parameters listed on nameplate. 
c. Noise was tested in semi-silenced room, so the actual noise value will be a little higher for change of ambient. 
 
5  Working Temperature Range 
Indoor side state  Outdoor side state 
Sorts 
Dry bulb temp.  ℃  Wet bulb temp.  ℃  Dry bulb temp.  ℃  Wet bulb temp.  ℃ 
Rated Cooling 27 19 35 24 
Max. cooling 32 23 48 26 
Min. cooling  21  15  18  — 
Rated Heating  20  15  7  6 
Max. heating 27 — 24 18 
Min. heating  20  15  -10 —