Nilfisk Alto 7309021 User Manual

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1.1  Model survey and main functions
The 
DELTABOOSTER comprises 4 different modules:
1.  
A switchboard
2.  
A water tank
3.  
KEW Technology C3K pumps
4. 
Cabinet / frame
The 
DELTABOOSTER is made of stainless materials through and through.
DELTABOOSTER switchboard
The switchboard comprises:
 
- main (emergency) switch, to which the supply cable is connected
    - control switch 24V AC
    - push-button switch for starting up
    - maximum current breaker (short circuit and overload) for each pump
    - contactors for connection of 3 or 6 pumps.
The switchboard also incorporates an electronic control that monitors the operation of the 
system; i.e. a) selection at any time of required pump capacity; b) even distribution of load on 
individual pumps; c) mixing of desired temperature of water drawn from a cold water and a 
hot water supply and d) the indication of status/fault on a control panel.
It also incorporates hour meters to show hours of operation of each individual pump.
The switchboard has been prepared for 
 
 
 
connection of 6-pumps:   (4, 5, and 6 pump plants)
 
 
or for  connection of 3-pumps:  (2 and 3 pump plants) 
The switchboard which on delivery controls 3 pumps may later be expanded to control 
6-pumps.
The 
DELTABOOSTER is available for the following voltages:
 
3 x 230V 
 
50 and 60 Hz + earth (PE)
 
3 x 346-400V, 
50 and 60 Hz + earth (PE)
 
3 x 415-440V, 
50 and 60 Hz + earth (PE)