Vaillant 0010002778, Installation Instructions Manual

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Installation instructions geoTHERM VWS/VWW 0020057444_01
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Additionally, there are further settable auxiliary func-
tions available (see also Chap. 8.3 "Settable auxiliary
functions"):
– Timer programmes
To set the heating times for each heating circuit
– Holiday programming
Programming of two holiday periods with date entry
and set-back temperature
– Party function
Carries the heating and hot water times forward to
the next shut-off point
– Energy saving function
Lowers the flow setpoint temperature for a presetta-
ble period
– Cooling mode
The cooling mode allows you to use the heat pumps
for cooling.
Cooling mode is only possible when using the
VWZ NC 14/17 accessory, and only for VWS 14 and
VWS 17 heat pumps.
– Screed floor drying
For drying out screed floors
– Anti-Legionella function
Kills germs in the tank and in the pipes
– Fixed value control
To set a fixed flow temperature via vrDIALOG
– Remote maintenance
Diagnostics and setting via vrDIALOG or
vrnetDIALOG
3 Safety instructions and regulations
3.1 Safety instructions
The heat pump must be installed by an approved techni-
cian, who will be responsible for adhering to the existing
standards and regulations. We accept no liability for any
damage caused by failure to observe these instructions.
Find out the transport and operating weights of the heat
pump from the Technical Data and take heed of them
during transportation and installation. Pay particular at-
tention to Chap. 4.2, "Requirements of the installation
site", before assembly.
d
Danger!
The coolant circuit is pressurised. Fur-
thermore, high temperatures can arise.
The appliance may only be opened and
serviced by Vaillant factory customer
service or by a qualified specialist tech-
nician. Work on the coolant circuit may
only be carried out by a qualified refrig-
eration engineer.
e
Danger!
Risk of electric shock!
Always switch off all power supplies be-
fore carrying out any electrical installa-
tion or servicing work. Make sure that
they are secured against inadvertent
switching on again.
a
Caution!
Risk of damage!
Do not add any antifreeze or corrosion
protection agents to the heating water,
as seals and other components can be
damaged as a result and this can lead to
water leaks.
Soften the heating water if the hardness is 3.0 mmol/l
(21,05 °e) or greater. You can use the Vaillant Ion Ex-
changer (Part. No. 990 349) for this. Observe the en-
closed instructions for use.
a
Caution! For VWW only:
Risk of damage to the heat pump.
The incoming ground water must be
checked for quality to ensure that no
damage occurs to the suction well, pipes
or evaporator.
2 Description of the device
3 Safety instructions and regulations