Owner`s manual

29
WARNING
Danger of injury and damage due to the unauthorized maintenance
and repair!
PROHIBITION
Never try to make repair or maintenance of the heat pump by yourself.
Service engineer should be authorized for this activity.
In order to guarantee all functions of S-THERM+ unit permanently and to keep correct and approved working
order, only original S-THERM+ spare parts can be used exclusively for maintenance and service work!
Check of filling pressure of the heating system
Filling pressure of your heating system can be read on the pressure gauge, which was installed as a part of
heating system by a specialized company during the installation. This pressure should be between 1 and 2
bar. When the water pressure drops below 0,5 bar, indoor units switches off automatically and outdoor unit
goes into a standby mode and displays an error message.
• Please check this filling pressure of the heating system after the start of operation every day during
the first week and then once a half year.
WARNING
Danger of damage by leaking water!
When there are leaks, water can leak out and cause some damage.
• In case of leaks, close shut-off valve of cold water in the area of warm water pipe.
• If there are any leaks in the heating circuit, switch the heat pump off.
• Leaks must be removed by a service engineer.
Shut-off valve of cold water is not a part of the heat pump system delivery. It will be installed by a service
engineer on the installation place. Service engineer will also explain positions and operation of this valve.
• When the filling pressure drops below 0,5 bar, inform your service engineer and ask him to replenish
heating water and to increase filling pressure.
WARNING
Danger of damage to the equipment and system due to the use of water
with a high content of lime, water with corrosive effects or water polluted
with chemicals!
As a result of usage of unsuitable tap water, it may come to a damage of sealings and diaphragms, to
clogging of parts of equipment and system where water flows and higher noise can be emitted during
heating.
• When it is necessary to replenish, or to drain and re-fill the heat system, please consult the service
engineer, who installed your equipment.
• Under certain circumstances it is necessary to test and treat the heating water. You get more info to
this also from your service engineer.