Accorroni GREEN 220, Руководство по установке

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CALIDO1
DHW heat pump with tank
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insulation.
3. Install the hydraulic safety group in the water inlet.
4. Install also an exspanion tank suitable sized to absorbe volume variations.
5. The nominal diameter of the pipe must be chosen on the basis of the available water pressure and the expected pressure drop within the
pipe system.
6. Water pipes can be flexible. To avoid corrosion damage, ensure that the materials used in the pipe system are compatible.
7. During the installation of the pipes in situ, any contamination of the pipe system must be avoided.
9.6.2 Water loading
If the unit is used for the first time or used again after emptying the tank, please make sure that the tank is full of water before turning on the
power.
• Flush the sysem carefully.
• Open the cold water inlet and hot water outlet.
• Start the water loading. When water flows out of the hot water outlet normally, the tank is full.
• Close the hot water outlet valve: the water load is finished.
ATTENTION: Operation without water in water tank, may cause damages the auxiliary electric heater.
9.6.3 Water draining
If the unit needs cleaning, moving etc, the tank should be emptied.
• Close the cold water inlet.
• Open the hot water outlet and open the manual valve of the drainage pipe.
• Start the water emptying.
• After emptying, close the manual valve.
9.6.4 Installation of an external recirculation pump and flow switch
If necessary to recirculate solar water or hot sanitary water, an external pump and flow switch must be connected and installed hydraulically
and electrically. The max available output for the pump is 5 A resistive. Also the optional probe T6 must be connected to the electrical box and
correctly positioned on the hydraulic plant (see the diagrams here below). The Parameter no. 14 must be configured by the installer (1= hot
sanitary water circulation, 2= solar water circulation).
The circulation of hot sanitary water is useful to avoid water becomes cold in the sanitary circuit if not used for several time. In this way the hot
water will be always ready when requested.
The circulation of solar water is possible only if solar panel are installed and only for CALIDO1-S or CALIDO1-D units. In this way solar energy is
used as secondary heat source to save energy.
In case of solar integration water, the following is required on the relevant circuit:
• an expansion tank suitable sized to absorbe volume variations, installed before the solar system.
• a pressure safety valve (3 bar) installed after the solar panel.
• an air vent valve with manual gate installed near the safety valve.
The outlet of the safety valve must be directed to a special tank for collecting glycol water, and not to normal waste water.
In case of recirculation of solar integration water, a thermal discharge safety valve (85°C) is highly recommended on the hot water outlet, with
the probe positioned in a ½" thermowell installed in the recirculation water connection.
The CALIDO1 300 litres is equipped with an auxiliary well for the use of a possible external temperature probe for solar management with a sep -
arate controller. In this case, it is advisable to pass the temperature probe through the auxiliary well (see Section 8.3) and through the channel
provided behind the front plastic cover, which is connected to the auxiliary well. In this way the cable, entering from the rear of the unit, will not
be visible, thus preserving the machine's appearance. To remove the front plastic cover, simply unscrew the two lower fixing screws and remove
the cover from the upper cover. To remove the upper cover, it is necessary to unscrew the three screws fixing the cover to the tank (one at the
rear and two at the sides).