Austria Email SISS 1250, Инструкция по эксплуатации и монтажу

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Id.Nr.: 236921-9
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5. Filling and Emptying U E
5.1 Filling
It is bindingly necessary to fi ll resp. apply pressure to the inner service water tank fi rst and then the buffer tank (hot water
area).
5.2 Emptying
When emptying the system, the buffer tank (hot water area) must be depressurised in the fi rst step and then the service
water tank in the second step.
The enamelled service water tank may be destroyed in the case of a non-compliance with the fi lling or emptying
procedure!
6. Service Water Connection (pressure-proof) E
Any warranty for our water heaters shall be rejected in case of use of unsuitable or inoperative storage connector fi ttings as
well as an exceedance of the specifi ed operating pressure.
All water heaters provided with a rating plate bearing the designation ‘nominal pressure 10 bar’ (atmospheric excess pres-
sure kp/cm²) are pressure-proof storage tanks and can be connected on a pressure-proof basis using a line pressure up
to 5.5 bar.
A pressure reducing valve must be installed in the cold water supply line should the line pressure be higher!
The water plumbing must be performed by means of a certifi ed diaphragm safety valve or a diaphragm safety valve combi-
nation (connector fi tting for pressure-proof storage tanks) only!
A safety valve combination consists of a shutoff, test, swing check, drain and safety valve with an expansion water drip and
is installed between the cold water supply line and the cold water supply of the storage tank in the order
as drawn.
Principally, the following must be observed:
In order to ensure a fl awless function of the connector fi tting, the same must be mounted in frost-protected rooms only. The
drain of the safety valve must be open and observable and the outlet pipe from the drop collector (expansion water funnel)
must lead into the sewer, so that neither frost nor clogging by dirt and similar can cause any malfunction.
No shutoff valve or other throttling must be installed between the safety valve and the cold water supply of the storage
tank.
Basically, all the regulations of ÖNORM B 2531, DIN 1988 (EN 806), DIN 1717, VDI 2035 or the corresponding national
regulations and laws must also be observed.
The safety valve must be set to a response pressure that is lower than the nominal pressure (10 bar) of the storage tank.
The cold water supply line must be rinsed out before the storage tank is connected fi nally.
After completed plumbing and bubble-free fi lling of the storage tank, the connector fi tting must be checked for functiona-
lity.
a) In order to avoid a blockage of the airing facility of the safety valve due to furring, the airing facility of the safety valve must
be operated from time to time during operation of the system. It must be observed whether the valve closes again after
releasing the airing facility and whether the water in place runs off completely through the funnel or the blow-off pipe.