Table des Matières
Publicité
Les langues disponibles
Les langues disponibles
SAFETY
THERMAL DISINFECTION – LEGIONELLA PROTECTION
THE LEGIONELLA PROCEDURE:
The procedure must be activated in the
parameter menu.
If the legionella procedure is activated, the
legionella sequence will start immediately.
If the legionella procedure is deactivated, the
legionella sequence will stop immediately.
If activated a new "legionella protection" cycle starts
automatically after 14 days (336 hours) +-2%. The
function will be deactivated at power cut.
* If the air temperature is too low and/or the DHW energy requirement during the "legionella protection" cycle is higher
than the needed output for the "legionella-protection" procedure.
** See page 28 for new legionella function.
SAFETY VALVE, CONTRA VALVE, CONDENSATION DRAIN – The installer:
The DHW HP tank must be protected by a new safety valve and a contra valve on the cold water side. This is to protect
the DHW tank against excessive pressure (due to the expansion of hot water and pressure shocks) and leaking. The
safety valve overflow has to be connected to the floor drain. The contra valve in the security group prevents the
backflow of warm water to cold water supply. Depending on the input air humidity, the evaporator generates a certain
quantity of condensing water. The condensing water container must be fitted to the drain. Concerning the specifications
of pipe connections - please see dimensional sketch "page 7 – Design & Dimensions"
SAFETY VALVE, CONTRA VALVE – The user:
Your installer has fitted a new safety group. This is to protect the DHW tank against excessive pressure (due to the
expansion of hot water and pressure shocks) and leaking. The functioning of the safety group: While the cold water in
the DHW tank is heated up, the water volume expands and the pressure inside the tank increases. If the pre-set pressure
level of the security group is met, the security valve opens and releases excess water (= pressure) to the drain. This water
release and even permanent releases in form of dropping, is absolutely normal and demonstrates that the security
group is working. The user is responsible for the maintenance of the safety valve, and has to check regularly (4-5 times a
year), whether it is operational. This is done by pressing or turning the spring loaded button on the valve and then to
watch and hear, if water is drained.. Damages due to a blocked safety valve are not covered by the manufacturer's
warranty.
SCALDING SAFETY:
Under normal operation conditions scalding hazard can be excluded. Scalding
hazard might occur, when using the electric supplementary heater (water can
get up to 90°C) and if there is a failure of the thermostat built into the electric
heating element. In this case the electric heater might heat the DHW up to
approx. 95° C - 98°C, before the safety thermostat is triggered. To avoid scalding
hazard you can build in a thermostatic mixing valve on the hot water side in
order to have a pre-set maximum temperature for the complete DHW
installation. The water temperature will usually not exceed than 65°C, when these
kinds of valves are installed.
Legionella prevention
70
60
50
40
30
20
10
0
1
4
7
10
13
16
19
Time
Watertemperature
Normal setpunkt
Additional heating
22
25
28
31
34
37
40
43
Legionella setpunkt
Heat pump
THERMOSTATIC
MIXING VALVE
HOT WATER
OUTLET
HOT WATER TANK
956119
46
49
52
55
COLD WATER
INLET
19
Publicité
Table des Matières
