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4
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Fig. 6 Housing and thermal insulation disassembly.
Installation
Requirements
IMPORTANT
The coil in BA-ST 9030-9050-1FEDC storage
tanks is not internally protected against corro-
sion. The coil may only be fi lled with a heat-
ing medium (heating water) that meets the
requirements of VDI 2035 part 1 and 2.
6
Chapter 3 |
Installation
2
2
5
3
5
3
6
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IMPORTANT
Installation and commissioning of the stor-
age tank shall only be done by appropriately
qualifi ed installer. The installer should in-
form the user of the functions of the prod-
uct and provide the necessary information
on its safe use.
Protection against overpressure shall be made in ac-
cordance with the relevant regulations in force.
Connect the storage tank to the water supply system
of water pressure at least 1 bar and max 6 bar and to
the heating systems where parameters of the heat-
ing medium may not exceed the allowable operating
conditions of the coil (see Table 4 Technical data). In-
stall a pressure reducer if the pressure at the cold
water inlet to the tank is higher than allowed.
Connect the heating and water supply systems in
accordance with the installation diagram (see Fig. 7 .)
Pressure increases during heating the water in the
storage tank. Therefore, the appropriate safety valve
must be installed in storage tank, at the cold water in-
let that will protect the storage tank against overpres-
sure. During heating the water, 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 failure. Drain the outfl ow from the safe-
ty valve to the sewerage or drain grate. Safety valve
drain line should be installed with a decline, in an en-
vironment free of freezing and remain open to the
atmosphere. The manufacturer is not responsible for
fl ooding the room through the safety valve.
TIP
In order to minimize the fl ow of water from
the safety valve associated with the ther-
mal expansion of the liquid, it is advisable
to install a suitable expansion vessel at the
cold water connection (see Fig. 7 item 9.)
TIP
We recommend installing a strainer in order
to protect the pumps, check valve and the
components of the heating system.
CAUTION
Installation of the appropriate safety valve
in the cold water supply line protecting the
unit against overpressure is mandatory!
Hot Water Storage Tank with large surface coil
BA-ST 9030 - 1FEDC
BA-ST 9040 - 1FEDC
BA-ST 9050 - 1FEDC
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