ENGLISH
1. Fit the two gaskets when you mount the pump in the pipe. See fig. 1, pos. B.
2. Install the pump with a horizontal motor shaft. See fig. 1, pos. C.
3. Tighten the fittings.
15.2
User Interface Position
Always install the EVOSTA2 SOL circulator with the motor shaft in a horizontal position.
Install the electronic control device in a vertical position.
Figure 13: Assembly position
− The circulator may be installed in heating and conditioning systems on either the delivery pipe or the return pipe; the arrow marked on the pump body indicates the direction of flow.
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Install the circulator as far as possible above the minimum boiler level and as far as possible from bends, elbows and junction boxes.
− To facilitate control and maintenance operations, install an interception valve both on the suction pipe and on the delivery pipe.
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Before installing the circulator, accurately flush the system with only water at 80°C. Then drain the system completely to eliminate any harmful substance that may have got into circulation.
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Avoid mixing additives derived from hydrocarbons and aromatic products with the circulating water. It is recommended that the addition of antifreeze, where necessary, should not exceed 30%.
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In the event of heat insulation use the special kit (if provided) and ensure that the condensate draining holes in the motor casing are not closed or partly blocked.
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In the case of maintenance, always use a set of new gaskets.
Never insulate the electronic control device.
15.2.1 Positioning of the user interface in heating systems
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