Mitsubishi Electric MXZ-2A20NA-1 Service Manual page 20

Operating Range
MXZ-2A20NA
Maximum
Cooling
Minimum
Maximum
Heating
Minimum
MAX. REFRIGERANT PIPING LENGTH & PIPE SIZE SELECTION
MXZ-2A20NA MXZ-2A20NA -
Piping length each indoor unit (a, b)
Total piping length (a+b)
Bending point for each unit
Total bending point
It does not matter which unit is higher.
Refrigerant pipe diameter is different according to indoor unit to be connected. When using extension pipes,refer to the
tables below.
When diameter of refrigerant pipe is different from that of outdoor unit union, use optional Different-diameter pipe.
For further information on Different-diameter pipe, see 15-1.
Indoor unit
class Pipe diameter
Liquid
09
Gas
Liquid
12
Gas
Liquid
15
Gas
MXZ-2A20NA -
Indoor intake air temperature
95˚FDB, 71˚FWB
67˚FDB, 57˚FWB
80˚FDB, 67˚FWB
70˚FDB, 60˚FWB
1
Extension pipe diameter
1/4 Liquid
3/8 Gas
1/4 Liquid
3/8 Gas
1/4 Liquid
3/8 Gas
1
Outdoor intake air temperature
115˚FDB
14˚FDB
75˚FDB, 65˚FWB
14˚FDB, 12˚FWB
82ft. MAX.
164ft. MAX.
25 MAX.
60 MAX.
Indoor
a
units
b
1/4
Indoor unit A
3/8
1/4
Indoor unit B
3/8
1/4
3/8
20
Outdoor
unit
49ft.
33ft.
Outdoor unit union diameter
For
Liquid
Gas
Liquid
Gas
49ft.
Unit : inch
1/4
3/8
1/4
3/8