© Wikora GmbH
Page 14
Status: 27.04.2015
Errors excepted.
7 General operation and maintenance instruction
Present operation and maintenance instruction and the compliance with it in combination with the installation and maintenance
record is part of the guarantee and warranty!
Operation
Your Wikora solar heating system is preset according to the present installation and maintenance record. In general,
there is no need of changing the preset parameters.
Please do not change the preset parameters by yourself. You will lose any warranty and guarantee claim.
If you do not conform to the preset parameters, please let them change and document by a specialist.
The various system parameters can be accessed according to enclosed instruction manual of the controller.
It is recommended to vent the solar heating system approx. 4 weeks after the initial operation. This should be
undertaken by a specialist. If you wish to vent the system by yourself, you can do it one-time at the central vent of the
solar pump group.
Venting procedure
Please switch off your solar heating system in the evening.
Open the air valve at the central vent by using a radiator vent key. Once liquid pours out, close this air valve. The
procedure is terminated.
Switch on again your solar heating system.
Please never vent at sunshine or running pump!
Please do not undertake an additional venting process. If the system’s working pressure drops later on or if the
system does not give any heat, please call a specialist.
Maintenance of solar heating system
Your Wikora solar heating system is a closed heating system. It corresponds to the safety regulations of DIN 4751,
DIN 702 and DIN 721.
Such systems have to be built and maintained exclusively by qualified and specialized companies.
Please do not refill water in case of pressure loss but call a specialist for assistance.
Only a solar concentrate released by Wikora may be refilled.
The valid system working pressure is shown in the installation and maintenance record and corresponds to 3.0 bar, in
general.
Please do never remove the drain bottle under the exhaust line of the safety valve which is to collect the blast solar
liquid in case of over pressure.
The solar heating system and the condition of the solar concentrate are to be checked and documented annually by a
specialist. Otherwise, any guarantee and warranty claim expires.
7.1 Evidence of maintenance
Date
Name / Company
Executed activity
Kg refilled sole
Color medium
1
□
uncolored
□
brown
□
black
□
cloudy
2
□
uncolored
□
brown
□
black
□
cloudy
3
□
uncolored
□
brown
□
black
□
cloudy
4
□
uncolored
□
brown
□
black
□
cloudy
5
□
uncolored
□
brown
□
black
□
cloudy
Chart 10: Evidence of maintenance
