Mitsubishi Electric M Series Manual page 509

M series
MXZ-4B71VA
MAX REFRIGERANT PIPING LENGTH
Piping length each indoor unit (a, b, c, d)
Total piping length (a+b+c+d)
Bending point for each unit
Total bending point
It is irrelevant which unit is higher.
ADDITIONAL REFRIGERANT CHARGE
Outdoor unit
Refrigerant piping length (one way, 4 unit total)
precharged
(g) 40m
2,700
0
Calculation : Xg = 20 g/m x (Refrigerant piping length (m) - 40)
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.
Indoor unit
class Pipe diameter
Liquid
15/20/22/25/35/42
Gas
Liquid
50
Gas
Liquid
60
Gas
MXZ-4B80VA
MAX REFRIGERANT PIPING LENGTH
Piping length each indoor unit (a, b, c, d)
Total piping length (a+b+c+d)
Bending point for each unit
Total bending point
It is irrelevant which unit is higher.
ADDITIONAL REFRIGERANT CHARGE
Outdoor unit
Refrigerant piping length (one way, 4 unit total)
precharged
(g) 40m
3,500 0
Calculation : Xg = 20 g/m x (Refrigerant piping length (m) - 40)
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.
Indoor unit
class Pipe diameter
Liquid 6.35(1/4)
15/20/22/
Gas 9.52(3/8)
25/35/42
Liquid 6.35(1/4)
50
Gas 12.7(1/2)
Liquid 6.35(1/4)
60
Gas 15.88(5/8)
Liquid 9.52(3/8)
71
Gas 15.88(5/8)
50m
200
Extension pipe diameter
6.35(1/4) Liquid
9.52(3/8) Gas
6.35(1/4) Liquid
12.7(1/2) Gas
6.35(1/4) Liquid
15.88(5/8) Gas 15.88(5/8)
50m
60m
200
400
Extension pipe diameter
Liquid 6.35(1/4)
Gas 9.52(3/8)
Liquid 6.35(1/4)
Gas 12.7(1/2)
Liquid 6.35(1/4)
Gas 15.88(5/8)
Liquid 9.52(3/8)
Gas 15.88(5/8)
MULTI SYSTEM Inverter Heat Pump
Indoor
25m
units
60m
25
60
c
60m
d
400
Outdoor unit union diameter
For
6.35(1/4)
Indoor unit A
9.52(3/8)
6.35(1/4)
Indoor unit B
12.7(1/2)
Indoor unit C
6.35(1/4)
Indoor unit D
Indoor
units
25m
a
70m
25
70
b
c
70m
600 d
For
Indoor unit A
Indoor unit B
Indoor unit C
Indoor unit D
Max.
a
Height
difference
b
Outdoor
unit
15m
10m
UNIT: mm (inch)
Liquid 6.35(1/4)
Gas 12.7(1/2)
Liquid 6.35(1/4)
Gas 9.52(3/8)
Liquid 6.35(1/4)
Gas 9.52(3/8)
Liquid 6.35(1/4)
Gas 9.52(3/8)
Max.
Height
difference
Outdoor
unit
15m
10m
UNIT: mm (inch)
Outdoor unit union diameter
Liquid 6.35(1/4)
Gas 12.7(1/2)
Liquid 6.35(1/4)
Gas 9.52(3/8)
Liquid 6.35(1/4)
Gas 9.52(3/8)
Liquid 6.35(1/4)
Gas 9.52(3/8)
15m
15m
C-507