Water Connections; Water Loading; Discharge Of Water From The Tank; Installation Of An External Re-Circulation Pump And Flow Switch - Olimpia splendid SHERPA SHW S1 200 Manual Del Usuario

9.6.1 Water connections

Please pay attention to the below points when connecting the water loop pipe:
1) Try to reduce the water loop resistance.
2) Make sure that there is nothing in the pipe and the water loop is smooth, check the pipe carefully to see if there is any leak,
and then pack the pipe with the insulation.
3) Install the hydraulic safety group in the water inlet.
4) Install also an expansion tank suitably sized to absorbe volume variations.
5) The nominal pipe diametere must be selected on the basis of the available water pressure and the expected pressure drop
within the piping system.
6) The water pipes may be of the flexible type. To prevent corrosion damage, make sure that the materials used in the piping
system are compatible.
7) When installing the pipe-work on the customers' site, any contamination of the piping 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.
1) Open the cold water inlet and hot water outlet.
2) Start the water loading. When there is water normally flowing out from the hot water outlet, the tank is full.
3) Turn off the hot water outlet valve and water loading is finished.
WARNING: Operation without water in water tank may result in damage of auxiliary e-heater.

9.6.3 Discharge of water from the tank

If the unit needs cleaning, moving etc, the tank should be emptied.
1) Close the cold water inlet
2) Open the hot water outlet and open the manual valve of drainpipe
3) Start the water emptying.
4) After unloading water, close the manual valve.

9.6.4 Installation of an external re-circulation pump and flow switch

If necessary to re-circulate 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 SHW S1 300S unit. In this way solar energy is
used as secondary heat source to save energy.
In case of solar water circulation, on the circulation loop is required:
 an expansion tank suitably sized to absorbe volume variations, installed before the solar system
 a pressure safety valve (3 bar) installed after the solar system
 an air vent valve with manual gate installed near the safety valve
The discharge of the pressure safety valve must be directed to a specific tank for the collection of glicolated water, and not to the
normal waste water.
In case of solar water circulation, on the hot water outlet is highly recommended a thermal discharge safety valve (85°C) with its
probe positioned into a ½"temperature well installed in the circulation connection.
The SHW S1 300S is provided with an auxiliary well for the installation of any external temperature probe for managing the solar
integration with a separated control. In this case, it is recommended to pass the temperature probe through the hole for
auxiliary cables (see Paragraph 8.3) and through the conduit arranged to the back of the frontal plastic cover, which is in
connection with the auxiliary well. In this way the cable, entering from the rear of the unit, will not be in view thus preserving the
aesthetics of the machine. To remove the frontal plastic cover, simply unscrew the two bottom fixing screws and remove the
cover from the top cover. To remove the top cover, unscrew the three screws that secure the cover to the tank (one on the rear
and two on the sides).
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