Mitsubishi Electric M Series Installation Manual page 11

MSZ-HR
M SERIES - WALL MOUNTED UNIT - DC Inverter/Heat Pump
230V
Breaker
DIAMETER
SIZE
Liquid mm Gas mm
(inches) (inches)
25 6,35 (1/4") 9,52 (3/8")
35 6,35 (1/4") 9,52 (3/8")
42 6,35 (1/4") 9,52 (3/8")
50 6,35 (1/4") 9,52 (3/8")
60 6,35 (1/4") 12,7 (1/2")
71 6,35 (1/4") 12,7 (1/2")
Example of total additional charge calculation
Formula
Precharge lenght (m)] x additional charge (g/m)
Example
Indoor/Outdoor unit = MSZ-HR25VF / MUZ-HR25VF
Total pipes lenght (inlet piping only) = 10 m
Lenght with additional charge (as tab) = 7 m
Additional charge = 20 g/m
Calculation: ∆W(g) = [10 - 7] x 20 = 60 g
L
N
MUZ-HR_VF
EXTERNAL PIPING
Max Max Max
Height Lenght* Pipe Bends
12 20 10
12 20 10
12 20 10
12 20 10
15 30 10
15 30 10
∆W(g) = [Lenght of pipes (m) -
S1
S2
S3
REFRIGERANT CHARGE
Precharge Additional
Precharge
lenght charge
Kg*
mt. g/mt
0,40
0,45
0,70
7 20
0,80
1,05
1,05
MITSUBISHI ELECTRIC / M SERIES
S1
S2
S3
MSZ-HR_VF
ELECTRICAL DATA
Operating
tonCO eq tonCO eq
current
2 2
precharge* max charge*
max
0,270 0,446 5,0 A
0,304 0,479 6,7 A
0,473 0,648 8,5 A
0,540 0,716 10,0 A
0,709 1,019 13,6 A
0,709 1,019 13,6 A
Breaker
10 A
10 A
10 A
12 A
16 A
16 A
9