Mitsubishi Electric M Series Installation Manual page 23

MXZ-HA
MXZ SERIES - MULTI SPLIT - DC Inverter/Heat Pump
230V
Breaker
DIAMETER
SIZE
Liquid mm
(inches)
MXZ-2HA40VF
MXZ-2HA50VF Vedi tabella
MXZ-3HA50VF
External piping diameter
CONNECTIONS
Liquid
Unit A
Liquid
Unit B
Liquid
Unit C
Example of total additional charge calculation
Formula
Precharge lenght (m)] x additional charge (g/m)
Example
Outdoor unit = MXZ-3HA50VA
Total pipes lenght (inlet piping only) = 20 m
Lenght with additional charge (as tab) = 7 m
Additional charge = 20 g/m
Calculation: ∆W(g) = [20 - 7] x 20 = 260 g
L
N
MXZ-HA_VF
EXTERNAL PIPING
Gas mm Max Max
(inches) Height Lenght*
15 20/30
15 20/30
15 25/50
MXZ-2HA
6,35 (1/4")
Gas 9,52 (3/8")
6,35 (1/4")
Gas 9,52 (3/8")
-
Gas -
∆W(g) = [Lenght of pipes (m) -
S1
S2
S3
S1
S2
S3
S1
S2
S3
REFRIGERANT CHARGE
Precharge
Max Precharge
lenght
Pipe Bends Kg*
mt.
20/20 0,9 30
20/30 0,9 30
25/50 1,4 7
MXZ-3HA
6,35 (1/4")
9,52 (3/8")
6,35 (1/4")
9,52 (3/8")
6,35 (1/4")
9,52 (3/8")
MIN AREA according to standard CEI EN 60335-2-40 ED6 R32 - HUMAN COMFORT
UNIT
INDOOR
MXZ-2HA40VF
MXZ-2HA50VF
MXZ-3HA50VF
MITSUBISHI ELECTRIC / MXZ SERIES
S1
S2
S3
S1
S2
S3
S1
S2
S3
Additional
tonCO eq tonCO
charge
2
precharge* max charge*
g/mt
- 0,61 0,61
- 0,61 0,61
20 0,95 1,53
Max charge (kg)
0,90
0,90
2,26
UNIT A
UNIT B
UNIT C
BREAKER
eq
2
15 A
15 A
25 A
Min Area (m²)
0,77
0,77
4,83
21