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CAUTION
Installation of necking of any kind (such as re-
ducers, dirt pockets, etc.) and cut-off valves
between the storage tank and the safety
valve is not allowed. Only a T-pipe with a drain
valve and a T-pipe with an expansion vessel
may be installed in these line sections.
CAUTION
Never block the safety valve or drain line.
This can cause a dangerous overpressure
in the storage tank.
CAUTION
When heating water, slight, temporary dis-
charge from the safety valve can occur. This
is a correct safety valve function. Any attempt
to interfere in its operation can lead to the
danger and destruction of the storage tank.
CAUTION
Never use the equipment with clogged
safety valves.
1.
BA-ST 9030/9040/9050 - 1FEDC storage tank.
2. Cut-off valve.
3. Safety valve.
4 Connection and start-up
Connection
CAUTION
The storage tank connections may not
be made of materials more precious than
carbon steel due to the increased electro-
chemical corrosion. This applies to con-
nector pipes (fittings) contacting the tank
connector pipe thread. Preferably, use gal-
vanized pipe connectors (fittings.)
After the installation and levelling the tank, follow the
procedure below (for the connector pipe numbers,
refer to Fig. 3):
1.
Remove protecting plugs from the connector pipes.
2. Connect the hot water intake line (11).
3. Connect the cold water supply line together
with the required safety valves (16).
4. If the system has the hot water circulation
system, connect it to the connector pipe (13).
Otherwise, plug the pipe.
5. Connect the supply (12) and return (15) of the
heating medium to the coil.
Start-Up
Fill the storage tank with water and vent it after mak-
ing correct connections.
Hot Water Storage Tank with large surface coil
BA-ST 9030 - 1FEDC
BA-ST 9040 - 1FEDC
BA-ST 9050 - 1FEDC
3
1
to sewerage
Fig. 7 Installation diagram of the
BA-ST 9030/9040/9050- 1FEDC storage tank with one coil.
4. Drain valve.
5. Pressure reducer (option, if the pressure in the
system exceeds the allowable value).
6. Strainer.
7 .
C/H circulating pump.
8. Hot water circulating pump.
9. Hot water expansion vessel.
10. Vent valve.
CAUTION
If there is an electric heating module in-
stalled in the storage tank, fill the tank with
water before connecting it to the electrical
installation.
Filling and venting the hot water storage tank:
1.
Open the cold water cut-off valve at the inlet and
the hot water intake point.
2. Fill the storage tank until obtaining uniform water
outflow at the hot water intake point. Close the
intake points.
3. Fill the coil with the heating medium, and vent it.
4. Check tightness of the entire system.
5. Check the tightness of the heating module con-
nection pipe.
When properly filled and vented, the storage tank is
ready to use.
CAUTION
The plug on the connection pipe of the heat-
ing module is an exploitation element, there-
fore it is necessary to check its tightness
before using the tank.
TIP
We recommend connecting the tank con-
nector pipes with the system lines by
means of unions to allow disconnection of
the tank, if required.
Chapter 4 |
2
DHW
7
6
10
2
2
Supply
of the coil
8
6
2
2
Hot water
circulation
2
6
Return
from the coil
9
5
2
Water
supply system
4
Connection and start-up
7
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