17
Installation procedure
Outdoor 1
Outdoor 2
Over 200mm
Over 200mm
Below 2m
Below 2m
Outdoor 3
A
B
C
D
E
F
G
L1
L2
L3
L4
L5
L6
L7
L8
L9
L10
L11
L12 L13 L14 L15
L16 L18 L20
L22
H2
H3
H
L17 L19 L21
V1
V2
V3
V4
The outdoor is more than one unit
When the distance between outdoors(L1, L3) is over 2m, the oil trap must be set
(upright projecting pipe, 200mm high), as the figure :
L3<10m
L1+L3<10m
L2+L3<10m
Note:
V1---V4: VP unit
A---F: indoors (cool/heat selection possible)
G---H: indoors (cooling only )
When outdoor is only one, Single way max. pipe length = L5+L6+L7+L8+L9+L10≤175m
Single way total pipe length = L5+L6……+L22
Max.length
Pipe in above figure
Single way total pipe length
300
(correspond
length)
L1+L2+L3……+L22
Single way max. pipe length
175
(correspond
length)
L1+L3+ L5+L6+L7+L8+L9+L10
Max.pipe length after 1st branch pipe
40
L6+L7+L8+L9+L10
Main pipe actual length
135
(correspond
length)
L5
Height difference between indoors
15
H2
Height difference between outdoors
5
H1
Height difference between outdoors
and indoors
50
40
H3 when outdoor is upper
H3 when outdoor is lower
Max.pipe length between indoors and
the nearest branch pipe
30
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