Mitsubishi MXZ-2A20NA, Service Manual

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Indoor unit
Extension pipe diameter
class Pipe diameter
Liquid 1/4 Liquid 1/4
09
Gas 3/8 Gas 3/8
Liquid 1/4 Liquid 1/4
12
Gas 3/8 Gas 3/8
Liquid 1/4 Liquid 1/4
15
Gas 3/8 Gas 3/8
●
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.
Outdoor unit union diameter
For
Liquid 1/4
Indoor unit A
Gas 3/8
Liquid 1/4
Indoor unit B
Gas 3/8
Unit : inch
Piping length each indoor unit (a, b) 82ft. MAX.
Total piping length (a+b) 164ft. MAX.
Bending point for each unit 25 MAX.
Total bending point 60 MAX.
❋
It does not matter which unit is higher.
MAX. REFRIGERANT PIPING LENGTH & PIPE SIZE SELECTION
MXZ-2A20NA MXZ-2A20NA -
1
Operating Range
MXZ-2A20NA MXZ-2A20NA -
1
Cooling
Heating
Maximum
Minimum
Maximum
Minimum
Indoor intake air temperature
95˚FDB, 71˚FWB
67˚FDB, 57˚FWB
80˚FDB, 67˚FWB
70˚FDB, 60˚FWB
Outdoor intake air temperature
115˚FDB
14˚FDB
75˚FDB, 65˚FWB
14˚FDB, 12˚FWB
a
b
Outdoor
unit
Indoor
units
49ft.
33ft.
49ft.
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