Unical HP OWER ONE 70, Руководство пользователя и инсталлятора

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10
Iron (Fe) < 0,3 ppm
Alkalinity (HCO3) 70 – 300 ppm
Chloride ions (Cl-) < 50 ppm
sulfate ions (SO4) < 50 ppm
Sulfide ion (S) None
Ammonium ions (NH4) None
Silica (SiO2) < 30 ppm
5.4.2 Drainage connection
All the units of series have been designed to use their own base as a drain pan; a plastic pipe fitting is standard provided to be
installed onto the lower part of the unit in the special housing enabling the connection of a drainage pipe.
Each unit is also provided, on the basement of the hydronic kit (at the heat exchanger side), with a hole that can allow to drain any
condensed water can leach from plumbing pipes. As the pipes must be well-insulated, the production of condensed water is
however very low and therefore the connection of a drainage pipe to that hole is not very required.
5.4.3 Plant circuit charging
WARNING: Verify all the charging/topping up operations.
WARNING: Before beginning the charging/topping up operation of the plant circuit, disconnect the unit for the
electric power supply.
WARNING: The charging/topping up of the plant circuit must always be done under controlled conditions of
pressure (max 1 bar). Make sure that you have installed on the line of charging/topping up a pressure
reducerdevice and a relief valve.
WARNING: The water on the charging/topping up pipe must be suitably pre-filtered from any impurities and
suspended particles. Make sure that you have installed a cartridge filter removable. Make sure that an extractable
cartridge filter and a dirt separator have been installed.
WARNING: It is required to proceed by air purging periodically in order to eliminate the accumulated air in the
plant circuit system.
WARNING: Make sure to install an automatic air vent valve at the highest point of the system.
5.4.4 Plant drainage system
When it is necessary to drain the plant, close at first the inlet and outlet manual gate valves (not supplied) and then remove the
pipes that are disposed externally on the water inlet and on the water outlet in order to spill away the liquid contained in the unit
Drainage pipe fitting Drainage pipe fitting housing Drainage pipe fitting connected to the unit
During loading / reintegration operations, the vent valve cap must be partially
unscrewed to allow air to flow freely outside the valve.
(1) breather valve cap
ATTENTION. The air vent is a manual valve. Periodically it is necessary to perform
the air purge operations that accumulate in the system as just described.
You can use the service valve, when it is necessary to refill the plant or adapt the
concentration of glycol. Unscrew the cap of the service valve and connect to the
hose a pipe of 14 mm or (inner diameter size - check the faucet model that is
installed on your own unit) connected to the water network, and then load the
system by unscrewing the knurled nut. When the operation is concluded, retighten
the knurled nut and screw on the cap. In any case, we recommend you to use for
the water loading of the plant an external tap whose arrangement is by the
installer.
Cap with gasket
Knurled nut
1
1