Vaillant VWL 35/5 AS 230V S2, Руководство по эксплуатации

Страница: 58 / 212

4 Set-up
56
Installation and maintenance instructions aroTHERM 0020257297_02
3.10 Thawing mode
At outdoor temperatures below 5 °C, condensation on the
fins of the evaporator may freeze and frost may form. This
frost is automatically detected and is automatically thawed at
certain intervals.
The thawing occurs by reversing the refrigeration circuit
while the heat pump is operating. The heat energy that is
required for this is taken from the heating installation.
Correct thawing operation is only possible if the minimum
volume of heating water is circulating in the heating installa-
tion:
–
40 litres, when the back-up heater is activated
–
100 litres, when the back-up heater is deactivated
3.11 Safety devices
The product is equipped with technical safety devices. See
"Safety devices" graphic (
→
Page 74).
If the refrigerant circuit pressure exceeds the maximum pres-
sure of 4.15 MPa (41.5 bar), the pressure switch switches
the product off. Following a waiting period, another attempt
is made to start it. After three failed start attempts in succes-
sion, a fault message is displayed.
If the product is switched off, the crankcase housing heat-
ing is switched on when the compressor outlet temperat-
ure reaches 7 °C. This prevents possible damage caused
by switching the product back on.
If the compressor inlet temperature and the compressor out-
let temperature are below -15 °C, the compressor does not
start up.
If the temperature measured at the compressor outlet is
higher than the permissible temperature, the compressor
is switched off. The permissible temperature depends on the
evaporation and condensation temperature.
In the indoor unit, the heating circuit's circulation water
volume is monitored. If no flow rate can be detected when
there is a heat demand when the circulation pump is running,
the compressor does not start up.
If the heating water temperature falls below 4 °C, the pro-
duct's frost protection function is automatically activated as
the heating pump is started.
4 Set-up
4.1 Unpacking the product
1. Remove the outer packaging parts.
2. Remove the accessory.
3. Remove the documentation.
4. Remove the four screws (transport lock) from the pallet.
4.2 Checking the scope of delivery
▶
Check the contents of the packaging units.
Quant-
ity Designation
1 Heat pump, outdoor unit
1 Condensate tray heater
1 Condensate discharge tundish
1 Bag with small parts
4.3 Transporting the product
Warning.
Risk of injury from lifting a heavy weight.
Lifting weights that are too heavy may cause
injury to the spine, for example.
▶
Have at least two people lift the product
VWL 35/5 to VWL 75/5.
▶
Have at least four people lift the product
VWL 105/5 and VWL 125/5.
▶
Observe the product weight stated in the
technical data.
Caution.
Risk of material damage due to incorrect
transportation.
The product must never be tilted at an angle
of more than 45°. Otherwise, this may lead
to faults in the refrigerant circuit during sub-
sequent operation.
▶
During transport, do not tilt the product by
any more than the maximum angle of 45°.
1. Check the path to the installation site. Remove any trip-
ping hazards.
Condition : Product VWL 35/5 to VWL 75/5, carrying the product
▶
Use the two transport straps on the product's foot.
▶
Carry the product to the final installation site (this re-
quires two people).
▶
Remove the transport straps.
Condition : Product VWL 35/5 to VWL 75/5, moving the product
▶
Use a suitable sack truck. In doing so, protect the casing
sections against damage.
▶
Move the product to the final installation site.
▶
Remove the transport straps.
Condition : Product VWL 105/5 and VWL 125/5, carrying the product
▶
Use the four transport straps on the product's foot.
▶
Carry the product to the final installation site (this re-
quires four people).
▶
Remove the transport straps.
Condition : Product VWL 105/5 and VWL 125/5, moving the product
▶
Use a suitable sack truck. In doing so, protect the casing
sections against damage.