0020257297_06 Installation and maintenance instructions
61
4.11.6 Removing the air inlet grille
D
C
3×1
A
2×2
3×1
B
E
2×1
1
2
1.
Disconnect the electrical connection to the temperature
sensor
(1)
.
2.
Remove the two cross-members
(2)
as shown in the
figure.
3.
Remove the air inlet grille as shown in the figure.
4.12
Installing the casing sections
4.12.1 Installing the air inlet grille
1.
Secure the air inlet grille by lowering it into the stop.
2.
Secure the screws at the right- and left-hand edge.
3.
Install the two cross-members.
4.
Establish the connection to the temperature sensor.
4.12.2 Installing the air outlet grille
1.
Slide the air outlet grille vertically downwards from
above.
2.
Secure the screws at the right-hand edge.
4.12.3 Installing the front casing
1.
Secure the front casing by lowering it into the stop.
2.
Secure the screws onto the upper edge.
4.12.4 Installing the side casing
1.
Secure the side casing by lowering it into the stop.
2.
Secure the screws onto the upper edge.
4.12.5 Installing the top casing
1.
Fit the top casing.
2.
Secure the screws at the right- and left-hand edge.
5
Hydraulics installation
5.1
Preparing work on the refrigerant circuit
Danger!
Risk of injury and risk of environmental
damage due to escaping refrigerant.
Touching any escaping refrigerant may
cause injury. Escaping refrigerant leads
to environmental damage if it reaches the
atmosphere.
▶
Only carry out work on the refrigerant cir-
cuit if you have been trained to do so.
Caution.
Risk of material damage when extracting
refrigerant.
When extracting refrigerant, there is a risk of
material damage caused by freezing.
▶
Ensure that heating water flows through
the indoor unit's condenser or it is com-
pletely drained when extracting refrigerant
on the secondary side.
1.
The outdoor unit is pre-filled with R410A refrigerant.
Determine whether additional refrigerant is required.
2.
Ensure that the two isolation valves are closed.
3.
Purchase suitable and appropriate refrigerant pipes in
accordance with the technical data.
4.
Ensure that the refrigerant pipes that are used comply
with these requirements:
–
Special copper pipes for the refrigeration techno-
logy
–
Thermal insulation
–
Weather resistance and UV resistance.
–
Protection against rodent bites.
–
Flaring with 90° flare in accordance with the SAE
standard
5.
Keep the refrigerant pipes blocked until they are in-
stalled.
6.
Purchase the necessary tools and equipment:
Always required
May be required
–
Flaring tool for 90° flare
–
Torque spanner
–
Refrigerant fitting
–
Nitrogen cylinder
–
Vacuum pump
–
Vacuum gauge
–
Refrigerant cylinder with
R410A
–
Refrigerant scales
Содержание VWL 105/5 AS S2
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