Tundish
14
6 Tundish
The tundish supplied must be fitted so it is visible to the occupier. The discharge pipe must be 22mm copper pipe. Regulations do
not permit more than 3 x 90-degree bends between the cylinder and the outflow. Between the temperature & pressure relief valve
and the first 90-degree bend there must be a fall of at least 300mm. The fall of the pipework must be continuous and the pipe
should terminate in the gully or be bent backwards onto an outside wall, in a place where discharge cannot be injurious to persons.
Figure 9:
Tundish Installation
IMPORTANT: EXPANSION VESSEL MUST BE CHECKED REGULARLY
— Perform regular checks to ensure the expansion vessel is always correctly pressurised to match the pressure reducing
valve (PRV) setting. The factory settings are 4.5 bar (4.5 bar models) or 6.0 bar (6.0 bar models).
From temperature and
pressure relief valve
From expansion
relief valve
Tundish
D2 discharge pipe
