A
Liquid cooling line.
B
Gas cooling line.
H
Vertical distance between units (max. 30 m).
L
Total pipe length (ve horizontal sec‐
tions). Laid and in one direction.
1
Outdoor unit.
2
Indoor unit.
A
Liquid cooling line.
B
Gas cooling line.
H
Vertical distance between units (max. 30 m).
L
Total pipe length (ve horizontal sec‐
tions). Laid and in one direction.
1
Outdoor unit.
2
Indoor unit.
Maximum length L: this is the sum of the lengths of all straight horizontal and vertical sections in one
direction, whether they hold liquid or gas.
Maximum equivalent length L
E
: this is the sum of the lengths of all straight horizontal and vertical sections
in one direction, whether they hold liquid or gas, plus the equivalent length of the accessories, basically
elbow joints and bends.
Equivalent length of accessories in metres
Outer pipe diameter
Short elbow joint radius
90° bend (Long radius)
3/8"
0,30
0,20
1/2"
0,40
0,30
5/8"
0,50
0,40
3/4"
0,50
0,40
7/8"
0,60
0,50
1 ⅛"
0,70
0,60
1 ⅜"
1,00
0,70
1 ⅝"
1,20
0,80
N O T E
The 45° elbow joints and bends (used in drain traps, for example) have half the equivalent length of the
90° bends.
H
A
B
L
1
2
H
L
1
2
A
B
1
Installation manual
1.10 Instructions for installation and connection of the unit
34
Summary of Contents for VCH-25A
Page 4: ...1 Installation manual...
Page 50: ...2 Wiring diagrams...
