Instructions

Maintenance

The DISCALDIRT air and dirt separator is designed to be maintained and cleaned without

removing it from system piping.

The automatic air vent, located at the top of the device, has a long chamber for float movement

(2). This prevents any impurities in the water from reaching the seal seat. The non-corroding

stainless steel pinned linkage and PP float can be accessed by removing the upper cover (1). The

float guide pin (4) prevents the float from jamming against the inside housing in non-vertical

installations or from boiler

residue buildup. Unscrew the top

part of the casing (3) to clean the

entire air venting system.

The air venting system in both

brass and steel DISCALDIRT air

and dirt separators features a

pinned float. Steel DISCALDIRT

air and dirt separators with

flanged and threaded

connections have an integral

side drain port (5), which has two

functions:

1. Air removed while filling the

system during system

commissioning.

2. Remove debris that float

within the air separator.

A separately-sourced drain valve installed to the drain pipe at the base of the steel DISCALDIRT

air and dirt separator (8) can be used to remove any debris that has settled at the bottom of the

separator, even with the system is in operation.

To inspect the internal element of brass DISCALDIRT air and dirt separators, unscrew the large dirt

separation chamber (6) with a 26 mm hexagon wrench. The internal element can be removed for

cleaning. Additionally, the brass

air and dirt separator has a

lever-operated shut-off drain

valve and hose attachment with

plug (7), to drain accumulated

debris as needed.