WG 7 - TC 72/WG 7

Applies to automatic electrical water level sensing controls of the float and electrode-sensor type for use in, or in association with, boilers with a maximum pressure rating of 2 000 kPa (20 bar), for household and similar use.

Applies to automatic electrical water level operating controls of the float type for use in, on or in association with equipment for general household and similar use.

Applies to automatic electrical water and air flow sensing controls for use in, on or in association with equipment for household and similar use including controls for heating, air conditioning and similar applications. -The equipment may use electricity, gas, oil, solid fuel, solar thermal energy, etc., or a combination thereof.