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Installation and maintenance instructions 0020257297_06
5.2
Planning the routing of the refrigerant pipes
5.2.1
Outdoor unit above indoor unit
H
1
2
4
3
1
Outdoor unit
2
Indoor unit
3
Hot gas pipe
4
Oil elevation elbow
The outdoor unit can be installed up to a maximum height
difference H of 30 m above the indoor unit. In this case, a
refrigerant pipe with a maximum length of 40 m is permitted.
Depending on the height difference, oil elevation elbows
must be installed in the hot gas pipe
Height difference H
Oil elevation elbow
up to 10 m
No oil elevation elbow required
Up to 20 m
One oil elevation elbow at 10 m high
Above 20 m
One oil elevation elbow at 10 m high,
one additional oil elevation elbow at 20
m high
The oil elevation elbow must comply with these geometric
requirements.
R
R
A
B
Product
Outer diameter,
hot gas pipe
A
B
R
VWL 35/5 and
VWL 55/5
1/2 "
173
40
40
VWL 75/5 to
VWL 125/5
5/8 "
256
40
60
5.2.2
Indoor unit above the outdoor unit
H
1
2
1
Outdoor unit
2
Indoor unit
The indoor unit can be installed up to a maximum height
difference H of 10 m above the outdoor unit. In this case, a
refrigerant pipe with a maximum length of 25 m is permitted.
No oil elevation elbow is required.
5.3
Routing refrigerant pipes to the product
Validity:
Floor installation
1.
Route the refrigerant pipe through the wall duct and
to the product.
2.
Route the refrigerant pipes through a suitable safety
pipe in the ground, as shown in the figure.
3.
Bend the refrigerant pipes only once into their final
position. Use a bending spring or a bending tool to
avoid kinks.
4.
Route the refrigerant pipes in the wall duct with a
slight downward gradient to the outside.
5.
Route the refrigerant pipe centrally through the wall
duct without the lines touching the wall.
Summary of Contents for VWL 105/5 AS S2
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