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13Original Instructions
1.5 Installation requirements for water connection
The water tank is fitted with two water inlets, one for cold water (BLUE marking) and one for hot
water (RED marking). This allows the operator to control the temperature of the water being used.
If no temperature control is desired both water inlets may be attached to the cold pipeline.
At least 1 cold water inlet (8-12°C) should always be connected and the hot inlet water should
never exceed 85°C.
Each pipeline should be capable of supplying the system with at least the water volume that
answers to the capacity of the system ( no. of pumps - l/min, cf. 1.3.3) and at min. 2 bar. The
water pressure must not exceed 10 bar. If water is being drawn from the lines at other points,
the line capacity should be equally bigger.
In order to achieve optimal temperature control the shut-off valves on both the hot and the cold
pipeline should be adjusted so that the water volume of each line comes as close to the required
water volume as possible.
Water should be connected at the inlet sockets with two 1" flexible hose connections (included
in the MK-Mountig Kit). The two water inlet hoses are 1 m long and fitted with a 1" external taper
pipe thread. Shut-off valves should be fitted right next to the connections on the supply lines, but
no extra non-return valve is required as the system is fitted with an airgap type water tank.
If the water holds running sand or other impurities external filters should be fitted in addition to
the internal filters.
The high-pressure connection to the pipe system should be by means of the 3/4" high-pressure
hose supplied with the system. The hose is fitted with an Ø22 plain branch for connecting to
cutting ring hose connection.
Capacity diagram
0
50
100
150
200
250
300
350
0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 1,5
Differential pressure of solenoid valve measured in bar
Liter/Min
EVSI 18 (Cold)
EVSI 20 (Hot)
Parallel
Max capacity ( 6-pumps)
Max capacity ( 3-pumps)
13


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Nilfisk-ALTO DELTABOOSTER User Manual - German - 56 pages

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Nilfisk-ALTO DELTABOOSTER User Manual - French - 57 pages


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