Samsung AE040RXED Series, Руководство по установке

Страница: 28 / 74

ENGLISH-28
Pipe work
Charging water
Liquid Pipe
Gas Pipe
Cap
Water Inlet
Air-vent valve
Water Outlet
DHW Inlet
Recirculation Inlet (Only 260 Liter Model)
DHW Outlet
After installation is completed the following procedures shall be used to charge water into the hydro unit .
f f
Connect water lines to water connections of hydro unit .
f f The air-vent valve shall be opened at least 2 turns and drain valves shall be closed .
f f Open the service valve in the water supply connection .
f f
Water pressure of supply line shall be over 2 .0 bar for good charging work .
f f Stop water supply when the pressure gauge of hydro unit indicates 2 .0 bar .
• Service space should be secured .
• Water pipe and connections must be cleaned using water .
• If internal water pump capacity is not enough, install external water pump .
• Do not connect electric wire while water charging .
• When initial installation or re-installation required, open the cap to prevent air trap in the unit while charging water .
• The back-up heater vessel shall be full of water before heater is turned on . Confirm if the vessel is empty by
opening the pressure relief valve of hydro unit . (OK if water is flowing out)
• It is recommended to install the make-up water assembly to feed small quantities of water to the system
automatically, replacing the minor water losses and maintaining the system pressure . This assembly usually
consists of a pressure-reducing valve, water filter, check-valve and shut-off valves . In this case, Check-valve must
be installed to prevent from contaminating city water .
CAUTION
Pressure relief valve
A pressure relief valve is integrated on heater vessel of hydro unit and shall work in abnormal condition for protecting the
hydro unit .
• The pressure relief valve will operate releasing the pressure by flowing out some water through the drain hose .
• Make certain that the discharged water out of drain pan can not contact any electrical parts .
CAUTION
Piping insulation
The complete water circuit, including all piping must be insulated to prevent condensation forming on the surface of the
pipe and heat loss to external environment .