Mitsubishi Heavy Industries FDTCVA SERIES Technical Manual page 316

Cooling
50
40
30
20
10
0
-10
-20
10
Heating
30
25
20
15
10
5
-20 -15
Height and length restrictions for refrigerant piping
Twin type
Outdoor unit Indoor unit
ra
L
A
rb
Triple type
Outdoor unit Indoor unit
ra
L
A
rb
rc
12 14 16
Indoor air W.B. temperature (˚CW.B.)
Range of heating usage
-10 -5 0
Outdoor air W.B. temperature (˚CW.B.)
Models 302~602
One-way pipe length (m) L +ra +rb
Branch pipe length (m)
Difference in height between indoor units (m) h=0.5 or less
Models 802, 1002
One-way pipe length (m) L +ra
B
Branch pipe length (m)
Difference in height between indoor units (m) h=0.5 or less
Model 602
One-way pipe length (m) L +ra +rb +rc
Branch pipe length (m)
Difference in height between indoor units (m) h1=0.5 or less, h2=0.5 or less, h3=0.5 or less
B
Models 802, 1002
C
One-way pipe length (m) L +ra
Branch pipe length (m)
Difference in height between indoor units (m) h1=0.5 or less, h2=0.5 or less, h3=0.5 or less
Range of cooling usage
18 20 22
5 10 15
10, ra
Ira –rb I
70, L +rb
Ira –rb I 10, ra
Ira –rb I 10, Ira – rc I
ra 20, rb
70, L +rb
Ira –rb I 10, Ira – rc I
ra 30, rb
315
- -
24 26
20 25
50
20, rb
20
70
30, rb
30
50
10, Irb – rc I
20, rc
20
70, L +rc 70
10, Irb – rc I
30, rc 30
10
10