Vaillant VWL 105/5 AS S2, Руководство по эксплуатации

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0020257297_06 Installation and maintenance instructions
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Start with the second test.
Result 3:
The pressure increases and there is residual moisture:
▶
Carry out the drying process.
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Start with the second test.
9. Second test : Switch on the vacuum pump.
10. Drain the refrigerant pipes and the indoor unit's plate
heat exchanger.
–
Absolute pressure to be reached: 0.1 kPa
(1.0 mbar)
–
Running time of the vacuum pump: 30 minutes
11. Switch off the vacuum pump.
–
Waiting period: 3 minutes
12. Check the pressure.
Result 1:
Pressure is stable:
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The second test is complete. Close the ball valves
(2) and (4) .
Result 2:
The pressure increases.
▶
Repeat the second test.
5.11 Adding additional refrigerant
Danger!
Risk of injury due to escaping refrigerant.
Touching any escaping refrigerant may
cause injury.
▶
Wear personal protective equipment.
1. Determine the basic length of the refrigerant pipe.
2. Calculate the required volume of additional refrigerant.
Product Basic length Refrigerant volume
VWL 35/5 and
VWL 55/5 < 15 m None
15 m to 25 m 30 g for every addi-
tional metre (above
15 m)
25 m to 40 m 300 g + 47 g for
every additional
metre (above 25 m)
Product Basic length Refrigerant volume
VWL 75/5 < 15 m None
15 m to 25 m 70 g for every addi-
tional metre (above
15 m)
25 m to 40 m 700 g + 107 g for
every additional
metre (above 25 m)
Product Basic length Refrigerant volume
VWL 105/5 and
VWL 125/5 < 15 m None
15 m to 25 m 70 g for every addi-
tional metre (above
15 m)
25 m to 40 m 700 g + 83 g for
every additional
metre (above 25 m)
Condition : Length of the refrigerant pipe > 15 m
▶
Ensure that the two isolation valves on the outdoor unit
are still closed.
R410A
2
3 4
5
1
▶
Connect the refrigerant fitting (2) with the ball valve (1) to
a refrigerant cylinder (4) .
–
Refrigerant to be used: R410A
▶
Put the refrigerant cylinder on the scales (5) . If the refri-
gerant cylinder does not have an immersion sleeve, put it
on the scales upside down.
▶
Leave the ball valve (3) closed. Open the refrigerant cyl-
inder and the ball valve (1) .
▶
If the hoses have been filled with refrigerant, set the
scales to zero.
▶
Open the ball valve (3) . Fill the outdoor unit with the cal-
culated refrigerant volume.
▶
Close both of the ball valves.
▶
Close the refrigerant cylinder.
5.12 Releasing the refrigerant
Danger!
Risk of injury due to escaping refrigerant.
Touching any escaping refrigerant may
cause injury.
▶
Wear personal protective equipment.
1
1. Remove both covering caps (1) .
2. Unscrew both hexagon socket screws as far as they
will go.
◁
The refrigerant flows into the refrigerant pipes and
the indoor unit.