Alarko ALD 400 Series, Operating Manual

Page: 17 / 73

16
The pressure switch adjustment should be made as follows.
1. Determine which pressure switches should be set to which values according to
the table below.
2. Set the water booster to manual mode. For this purpose, press button 2 shown
on page 20 for 10 seconds.
3. It is enough to use only one motopump when adjusting the pressure switch. The
pressure in the installation will be increased by running the motopump, the pressure
will be reduced by draining the water from the drain valve (or waiting for the water to
be used in the installation). Pressure switches should be adjusted during these
pressure changes.
4. Run the motopump. The key 6 is used for this purpose. Once the key is pressed,
the motopump starts. If it is pressed again, the motopump stops.
5. Firstly set the low pressure switch. Use the short and long bolts specified above
for this purpose.
6. If the water booster has two pumps, the operation is ended by adjusting the high
pressure switch. If it has three pumps, after the low pressure switch, the medium
pressure switch should be set and then the high pressure switch should be set as
well.
7. After the pressure switch adjustment is complete, press key 3 shown on page 20
to set the water booster to automatic mode.
8. In automatic mode, check that the water booster operates at the desired pressure
values and that the motors are switched on and off in sequence.
Table 3: Booster Pressure Switch Setting Table
Single pump Twin pump Triple pump
1. Pump 1. Pump 2. Pump 1. Pump 2. Pump 3. Pump
Water
booster
type
Start/Stop
Water
booster
type
Start/Stop Start/Stop
Water
booster
type
Start/Stop Start/Stop Start/Stop
403/10-1 3-5 403/10-2 3,5-5 3-4,5 403/10-3 3-5 2,5-4,5 2-4
403/15-1 5-7 403/15-2 5-7 4,5-6,5 403/15-3 5-7 4,5-6,5 4-6
403/16-1 5,5-7,5 403/16-2 5-7 4,5-6,5 403/16-3 5,5-7,5 5-7 4,5-6,5
406/11-1 3-4,5 406/11-2 3-4,5 2,5-4 406/11-3 3-4,5 2,5-4 2-3,5
406/15-1 4-6 406/15-2 4-6 3,5-5,5 406/15-3 4-6 3,5-5,5 3-5
406/18-1 5-7 406/18-2 5-7 4,5-6,5 406/18-3 5-7 4,5-6,5 4-6
408/10-1 3,5-5,5 408/10-2 3,5-5,5 3-5 408/10-3 3,5-5,5 3-5 2,5-4,5
408/14-1 5-7 408/14-2 5-7 4,5-6,5 408/14-3 5-7 4,5-6,5 4-6
408/17-1 6-8 408/17-2 6-8 5,5-7,5 408/17-3 6-8 5,5-7,5 5-7
610/8-1 5-7 610/8-2 5-7 4,5-6,5 610/8-3 5-7 4,5-6,5 4-6
610/10-1 5,5-7,5 610/10-2 5,5-7,5 5-7 610/10-3 5,5-7,5 5-7 4,5-6,5
610/12-1 7-9 610/12-2 7-9 6,5-8,5 610/12-3 7-9 6,5-8,5 6-8
615/7-1 4,5-6,5 615/7-2 4,5-6,5 4-6 615/7-3 4,5-6,5 4-6 3,5-5,5
615/9-1 6,5-8,5 615/9-2 6,5-8,5 6-8 615/9-3 6,5-8,5 6-8 5,5-7,5
615/10-1 7,5-9,5 615/10-2 7,5-9,5 7-9 615/10-3 7,5-9,5 7-9 6,5-8,5
620/7-1 5-7 620/7-2 5-7 4,5-6,5 620/7-3 5-7 4,5-6,5 4-6
620/8-1 6-8 620/8-2 6-8 5,5-7,5 620/8-3 6-8 5,5-7,5 5-7
620/9-1 7,5-9,5 620/9-2 7,5-9,5 7-9 620/9-3 7,5-9,5 7-9 6,5-8,5
631/6-1
3,5-5,5
631/6-2
3,5-5,5 3-5
631/6-3
3,5-5,5 3-5
2,5-4,5
631/7-1 4,5-6,5 631/7-2 4,5-6,5 4-6 631/7-3 4,5-6,5 4-6 3,5-5,5
631/8-1 5-7 631/8-2 5-7 4,5-6,5 631/8-3 5-7 4,5-6,5 4-6
The unit of start and stop values is Bar.