DAB EVOSTA 2, Инструкция по установке и обслуживанию

Страница: 24 / 37

ENGLISH
22
8.2 User Interface Position
Always install the EVOSTA2, EVOSTA2d circulator with the motor shaft in a horizontal
position.
Install the electronic control device in a vertical position.
Figure 3: 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.
− 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.
− 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.
− 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%.
− 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.
− In the case of maintenance, always use a set of new gaskets.
Never insulate the electronic control device.