Nilfisk Alto DELTABOOSTER 7309021 User Manual

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7
Water tank
The water tank of the 
DELTABOOSTER has been constructed in accordance with BS 6281 
part 1 (type A air gap). As standard the water tank is mounted for water connection in the 
left 
side (seen from in front) but the water tank is also available with prepared water connection in 
the 
right side.
The water tank of the 
DELTABOOSTER incorporates the following:
 
- two solenoid valves for water inlet, cold and hot water respectively
 
- various control valves
 
- temperature sensor and level switches in the float tank
 
- overflow
 
- connection of up to 6 pumps
 
- filters in in-lets
C3K pumps
The C3K pumps are designed for the very demanding environments in which they are used. Their 
durability has been achieved by the use of ceramic pistons *
)
 and valves of stainless steel. 
Each of the pumps are connected by individual non-return valves to a central manifold. Thus it 
is ensured that a defective pump will not cause a malfunction or an unintentional by-pass situ-
ation.
*
)
 The 
C in the pump designation C3K stands for "Ceramic".