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2.
System check:
•
Fill the installation with water.
•
Check hydraulic connections. The connections of the buffer tank that
will not be used should be suitably plugged. It is necessary to ensure
watertightness at a pressure of at least twice the nominal pressure of the
buffer tank at the maximum operating temperature of the fluid.-fig.5
•
Air ventilation of the buffer tank.Before air ventilating the buffer tank make
sure that no appliances are connected to the electrical power supply.
Instructions for air ventilation of the buffer tank - fig. 6
•
Open the air ventilation valve (A) when filling the system with water to
allow air to leave the buffer tank.
•
Close the air ventilation valve as soon as water flows out (repeat this
measures several times, if required).
•
Check whether the air ventilation valve has watertightness.
The first heating of the tank must be done in the presence of the installer to
confirm the correctness of the entire installation.
Draining the buffer tank
3.
The draining of the buffer tank can be executed by opening the drainage valve.
The drain valve must be installed at the pocket for heating element or the
lowest hydraulic connection. - see. fig. 7.
Important! When draining, there must be taken measures to prevent
damage from leaking water.
In the event that a drain valve will not be installed, install a plug so as to
guarantee the tightness of the buffer tank.
4.
Anti-corrosion protection
Corrosion protection of the non-enamelled steel reservoirs is carried out by the
inhibitors contained in the heat carrier of the system. The latter are indicated in
the project of the installation, prepared by the company specialized in this activity,
which has also made the selection of the specific buffer tank.
ELECTRICAL CONNECTIONS
VI.
1.
Connecting a temperature sensor
Note! If the temperature sensors kit is not included in the delivery set, it must be
ordered additionally. If temperature sensors sleeve are not installed, you must
mount plugs to guarantee the hermeticity of the buffer tank.Two temperature
sensors must guarantee watertightness.
Installation instructions for temperature sensor - fig. 8
•
Screw the temperature sensors sleeve (1) into the Pocket for the temperature
sensor.
•
Screw the stuffing glands (2) into the temperature sensors sleeve (1).
•
Use Insulation ring (3) to ensure reliable isolation of the sensor from external
factors.
•
Use a thermal conductivity lubricant to insert the temperature sensor (4) into
the sensor sleeve (1).
VII.
MAIN SCHEMES FOR HYDRAULIC CONNECTIONS
Before starting to work with the buffer tank, make sure that it is connected correctly
to the relevant installations and is filled with water.
Example scheme 1
fig.9.a where:
1 Heat pump; 2 Circuit; 3 Plug
Example scheme 2
fig.9.b where:
1 Heat pump; 2 Circuit; 3 Plug
Example scheme 3
fig.9.c where:
1 Heat pump; 2 Boiler; 3 Circuit; 4 Plug
Example scheme 4
fig.9d where::
1 Heat pump; 2 Boiler; 3 Circuit; 4 Plug
INSTRUCTIONS FOR PROTECTING THE ENVIRONMENT
VIII.
Old buffer tanks contain precious materials and thus should not be thrown together
with the household litter. We kindly ask you make your active contribution for
protecting the resources and the environment by handing over the buffer tanks in
the authorized buy-back stations (if such exist).
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