CLIVET WSAN-YMi 101, Instruction Manual For Installation, Use And Maintenance

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The units are equipped with a water inlet and outlet for connection to a water circuit.
The units should only be connected to closed water circuits.
Connection to an open water circuit would lead to excessive corrosion of the water piping.
Only materials complying with all applicable legislation should be used.
Before continuing installation of the unit, check the following:

The maximum water pressure ≤ 3 bar.

The maximum water temperature ≤ 70°C according to safety device setting.

Always use materials that are compatible with the water used in the system and with the materials used in the unit.

Ensure that components installed in the field piping can withstand the water pressure and temperature.

Drain taps must be provided at all low points of the system to permit complete drainage of the circuit during maintenance.

Air vents must be provided at all high points of the system.
The vents should be located at points that are easily accessible for service.
An automatic air purge is provided inside the unit.
Check that this air purge valve is not tightened so that automatic release of air in the water circuit is possible.
The units are equipped with an expansion vessel that has a default pre-pressure (see table).
To assure proper operation of the unit, the pre-pressure of the expansion vessel might need to be adjusted.
1) Check that the total water volume in the installation, excluding the internal water volume of the unit, is at least 40L .
Refer to General technical data to find the total internal water volume of the unit.
2) Using the table below, determine if the expansion vessel pre- pressure requires adjustment.
3) Using the table and instructions below, determine if the total water volume in the installation is below the maximum allowed water
volume.
NOTE
If the installation is equipped with a domestic hot water tank (optional), please refer to the domestic hot water tank Installation And
Owner's Manual. If there is no glycol (anti-freeze) in the system there is a power supply or pump failure, drain the system (as shown
in the figure below).
NOTE
If water is not removed from the system in freezing weather
when unit is not used.
The frozen water may damage the water circle parts.
Installation height
difference
Water volume ≤ 230 Water volume > 230
≤ 7 No pre-pressuread justment required.
Calculate the volume of the expansion vessel based on
the height of the system and its actual water content.
>
Pre-pressure must be increased, calculate according
to "Calculating the pre-pressure of the expansion
vessel" below.
Calculate the volume of the expansion vessel based on
the height of the system and its actual water content.