PRE-INSTALLATION
8
PRE-INSTALLATION
Make sure the pre-installation requirements are met before installing the system.
Feedwater requirements
Feedwater should be filtered with 1 μm sediment filter. If the filter is not installed, the input strainer
may become clogged thus blocking the water flow.
Check if sediment filter is installed in tap water
supply line. There should be at least one sediment
filter (pore size 1 µm). The sediment filter is
usually available from a local plumbing store.
If you cannot obtain a sediment filter locally, you
can order tap water line pre-filter set from Adrona
(see picture below). The part number is
10170 (carbonpp/ PP 1 μm) or
10171 (polyphosphate/carbonpp/1 μm).
Feedwater properties:
Type of feedwater Potable
Minimum pressure ≥0.4 bar
Maximum pressure ≤4 bar
Conductivity <1500 µS/cm
Temperature 5 – 35 °C
pH 4 – 10
Fouling Index <5
Iron <0.1 ppm as CaCO
3
Aluminum <0.05 ppm as CaCO
3
Manganese <0.05 ppm as CaCO
3
Free Chlorine <1 ppm
Langelier Saturation Index <+0.2
TOC <2000 ppb
Feedwater connection
Feed water hardness does affect produced water quality. Operation of the system with hard feed water
may result in pre-mature clogging of reverse osmosis membranes and reduced Grade II water flow.
Therefore, it is strongly recommended to install a water softener or polyphosphate filter if
water hardness is above 160 ppm.
Feed water connection port has to be 1/2” NPTF (male) thread. The system is equipped with feed water
tube (1/4” OD) and adapter for 1/2” NPTF (female) water supply connection. The feed water tube
should be connected to the 1/4” John Guest port of the adapter. Feed water connection port should be
equipped with a valve allowing shutting off water supply.
Drain pipe should be lower that the level of the instrument and the level of the “OVERFLOW”
port of the tank. The water purification system has 1/4” OD drain pipe. The “OVERFLOW”
port of the tank is intended for 3/8” OD pipe with stem elbow 3/8”.
Feed water supply connector and drain should be within 3 meters from the installation site.
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