The replenishment water treatment filling unit is an assembly consisting of
a backflow preventer, isolation valves, filter housing unit with replaceable
resin cartridge and AutoFill™ pre-adjustable fiill valve. This unit is
installed on the water inlet piping in sealed hydronic heating or cooling
systems. Three important functions are provided in this single filling unit
assembly: maintaining the pressure of the system stable at a set value
and automatically filling up with water as required; protecting drinking
water systems from return flow, caused by back-siphoning or back
pressure of contaminated fluids; and producing from site-sourced water,
demineralized water of an ideal grade for use in closed hydronic heating
and cooling systems. Minerals causing hardness are almost entirely
eliminated. This prevents premature equipment malfunction including
reduced efficiency or component failure due to lime scale formation – a
common affliction of heat exchangers. Demineralized water is low in
electrical conductivity to minimize corrosion due to galvanic attack.
Demineralized water eliminates the variability of mineral content found in
untreated site water which provides more reliable dosing when chemical
additives are used – such as glycol.
- Demineralizes site water through a color changing (indicates when to change) demineralizing cartridge.
- Complete including backflow preventer, isolation valves, filter housing with resin cartridge and AutoFill automatic fill valve.
- Max inlet pressure: 125 psi
- Max working temp: 100°F
- Max flow: 1 gpm
- TDS of water after treatment: < 30 ppm
- Connections: 1/2" NPT