Installation Requirements - Nibe BA-ST 9022-1FE Installation And Operating Manual

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Fig. 8 Housing and thermal insulati on disassembly
3.3 Installati on Requirements
CAUTION
The coil in BA-ST 9022-9100-1FE storage tanks is not in-
ternally protected against corrosion. The coil may only be
fi lled with a heati ng medium (heati ng water) that meets
the requirements of VDI 2035 part 1 and 2.
CAUTION
Installati on and commissioning of the storage tank
shall only be done by appropriately qualifi ed installer.
The installer should inform the user of the functi ons of
the product and provide the necessary informati on on
its safe use.
Protecti on against overpressure shall be made in accordance
with the relevant regulati ons in force.
Connect the storage tank to the water supply system of water
pressure at least 1 bar and max 10 bar (BA-ST 9022 - 1FE up
to 6 bar) and to the heati ng systems where parameters of the
heati ng medium may not exceed the allowable operati ng con-
diti ons of the coil (see Table 5 Technical data). Install a pressu-
re reducer if the pressure at the cold water inlet to the tank is
higher than allowed.
Connect the heati ng and water supply systems in accordance
with the installati on diagram (see Fig. 9.)
Pressure increases during heati ng the water in the storage
tank. Therefore, the appropriate safety valve must be installed
in each storage tank, at the cold water inlet that will protect
the storage tank against overpressure. During heati ng the wa-
ter, small and temporary water fl ow from the safety valve can
occur, which indicates that the pressure has increased above
the rated value, which triggered the valve. This may in no way
be prevented. Blocked safety valve can cause equipment fa-
ilure. Drain the outf low from the safety valve to the sewerage
or drain grate. Safety valve drain line should be installed with
a decline, in an environment free of freezing and remain open
to the atmosphere. The manufacturer is not responsible for
fl ooding the room through the safety valve.
Hot Water Storage Tank with One Coil
BA-ST 9022/9100 - 1FE
INSTALLATION AND OPERATING MANUAL
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Informati on
In order to minimize the fl ow of water from the safety valve
associated with the thermal expansion of the liquid, it is advi-
sable to install a suitable expansion vessel at the cold water
connecti on (see Fig. 9 item 9.)
Informati on
We recommend installing a strainer in order to protect
the pumps, check valve and the components of the he-
ati ng system.
CAUTION
Installati on of the appropriate safety valve in the cold
water supply line protecti ng the unit against over-
pressure is mandatory!
CAUTION
Installati on of necking of any kind (such as reducers,
dirt pockets, etc.) and cut-off valves between the stora-
ge tank and the safety valve is not allowed. Only a T-pi-
pe with a drain valve and a T-pipe with an expansion
vessel may be installed in these line secti ons.
CAUTION
Never block the safety valve or drain line. This can cau-
se a dangerous overpressure in the storage tank.
CAUTION
When heati ng water, slight, temporary discharge from
the safety valve can occur. This is a correct safety valve
functi on. Any att empt to interfere in its operati on can
lead to the danger and destructi on of the storage tank.
CAUTION
Never use the equipment with clogged safety valves.
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