Daikin FTXN50MV1B - Refrigerant Piping; Piping Length & Elevation

17
Application Information
REFRIGERANT PIPING
Piping Length & Elevation
If the pipe is too long, both capacity and reliability of the unit will drop. As the number of bends increases,
resistance to the fl ow of refrigerant system increases, thus lowering cooling capacity. As a result, the
compressor may become defective. Always choose the shortest path and not exceed the maximum piping
length as tabulated below.
Model
Maximum Total
Piping Length
(m)
Single Indoor
Maximum
Piping Length
(m)
Maximum
Height
Difference (m)
Pre-charged
Total Piping
Length (m)
Outdoor Unit
Pre-charged
(kg)
Amount of
Additional
Charge (g/m)
2MX45BGXV1
(2 Ports)
L
1
+ L
2
≤ 30 L ≤ 20 H ≤ 15 15 1.2 20
2MX50BGXV1
(2 Ports)
L
1
+ L
2
≤ 50 L ≤ 25 H ≤ 15 30 2.0 20
3MX60BGXV1
(3 Ports)
L
1
+ L
2
+ L
3
≤ 60
L ≤ 25 H ≤ 15 30 2.6 20
4MX80BGXV1
(4 Ports)
L
1
+ L
2
+ L
3
+
L
4
≤ 60
L ≤ 25 H ≤ 15 30 2.6 20
AIR FILTER
FRONT FRAME
SIGNAL RECEIVER
INDICATOR LIGHT &
ON/OFF SWITCH
DRAIN HOSE
INDOOR UNIT
RETURN AIR
AIR DISCHARGE NOZZLE
OUTDOOR UNIT
* Remark: Applicable for Wall Mounted, Ceiling Cassette, Ceiling Concealed, Ceiling Convertible Unit.