Heat pumps AIR / WATER
Operation manual
41
5.7
Magnesium anode check
If the system is equipped with hot water heating and the installation contains a service water
container (e.g. Dražice boiler, Hydrobox), it is necessary to check the magnesium anode placed
in the container. The first inspection is carried out no later than 6 months after commissioning,
according to which the interval for further inspection will be determined. The period between
inspections shall not exceed two years.
In case of more than 50% decrease in magnesium anode (original diameter approx. 20 mm), it
is necessary to replace it. Replacement shall be carried out either by a complete replacement,
including a brass nut, or only by fitting the new anode rod into the original brass nut (turning
with M8 screw).
5.7.1
Anode Check (Replace) Procedure
•
turn off the heat pump
•
stop the supply of cold water to the D.H.W. tank, or close the vent valve at the hot water
outlet (may not be fitted)
•
drain the water pressure with a hot water tap, close the tap
•
unscrew the anode (the location is marked with the inscription)
•
in case of more than 50% decrease of magnesium anode (original diameter approx. 20
mm) replace
•
screw in the anode
•
open the cold water supply to the D.H.W. tank, enable the vent valve at the hot water
outlet (may not be fitted)
•
activate heat pump
5.8
Safety valve
The Acond heating system can be fitted with a container designed for accumulation of domestic
hot water or a hot water storage tank (hereinafter referred to as the containers). Each safety
valve shall be periodically checked for functionality at least once every six months (by manual
draining of water) and replaced in the event of a malfunction. Caution - hot water may leak from
the valve.
The container supplier shall not be liable for defects caused by the malfunction
of the safety valve.
Occasional leakage of water from the safety valve during hot water heating is a
normal phenomenon caused by thermal expansion of water. Permanent leakage
of water indicates a defective safety valve and causes large energy losses.