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Hydraulics installation 5
0020257297_02 aroTHERM Installation and maintenance instructions
63
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 (heat ex-
changer) or it is completely drained when
extracting refrigerant on the secondary
side.
1.
The outdoor unit is pre-filled with R410A refrigerant.
Determine whether additional refrigerant is required
(
→
Page 66).
2.
Ensure that the two isolation valves are closed
(
→
Page 54).
3.
Purchase suitable and appropriate refrigerant pipes in
accordance with the technical data (
→
Page 78).
4.
It is preferable to use the refrigerant pipes from the ac-
cessories. If you use other refrigerant pipes, ensure that
they fulfil these requirements: Special copper pipes de-
signed for refrigeration technology. Thermal insulation.
Weather resistance. UV resistance. Protection against
rodent bites. Flaring in accordance with the SAE stand-
ard (90° flare).
5.
Keep the refrigerant pipes blocked until they are in-
stalled. Take appropriate measures (e.g. filling with ni-
trogen and blocking with a plug) to prevent the ingress
of moist outdoor air.
6.
Purchase the necessary tool 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 with
digital display
Содержание aroTHERM Series
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