DAB KDN Bedienungsanleitung Seite 43

3.9. DIESEL MOTOR PUMP EXHAUST GASES
Lead the exhaust gases outside the pump room with a dedicated pipe, connected to the silencer provided with the
Diesel motor pump.
The exhaust pipe can run along the ceiling or the floor.
It must be protected against unfavourable weather conditions and provided with drainage for emptying any condensate.
To avoid exceeding the maximum value of back pressure at discharge (600 mm H2O for air-cooled motors and 100 mm
H20 for supercharged air-cooled motors), it is also recommended to adopt the following measures:

The pipe must not be more than 10 metres long.

The section of the pipe must be kept the same as the outlet of the silencer provided.

To calculate the section of a pipe more than 10 metres long, you must consider the value of the section of the silencer
outlet pipe, multiply it by the length of the pipe itself, and divide the result by 8.

Reduce as much as possible the number of bends used in the pipe (maximum 6) and opt for the use of bends with a
wide radius.
3.10. DIESEL MOTOR VENTILATION
For optimum operation the heat given off by the motor and by the exhaust pipes must be discharged outside the
pump room and a sufficient flow of combustion air must be guaranteed.
In most cases the natural circulation caused by the difference in temperature between the inside and outside air is not
enough. You must therefore:

guarantee the input of air through an opening suitably protected by a fixed grid,

use a fan to extract air from the pump room.
In the case of water-cooled motors, the surface of the air inlet and outlet holes must have at least the same dimensions
as the surface of the radiator.
In the case of air-cooled motors, the surface of the holes must be able to drain an air flow rate of at least 50.000
litres/min.
(technical data for the largest air-cooled Diesel motor used by DAB PUMPS).
4. ELECTRICAL CONNECTION
ATTENTION: RESPECT THE SAFETY REGULATIONS IN FORCE
4.1. The electrical installation must be carried out by a qualified, skilled electrician (see point
2.1.) in compliance with the Safety Regulations in force in the country where the product
is installed.
Check the power supply voltage and frequency. Values differing from those on the motor plate could
4.2.
cause irremediable damage.
Connect the leads of the power supply cable to the terminal board on the control panel, giving priority to
4.3.
the earth lead.
For the wiring diagram of the control panel and the respective informative notes, see the enclosed
documentation.
5. DIESEL MOTOR PUMP CONNECTIONS
Connect the two cables with the red terminal cover to the positive poles of the two batteries for starting the Diesel motor pump,
using the terminal clamps provided.
FROM
AUTOMATICALLY IN THE EVENT OF A FALL IN PRESSURE IN THE SYSTEM!!!
KEEP THE SELECTOR ON THE MOTOR PUMP PANEL IN ZERO POSITION – 0.
6. CHECKING OPERATION OF THE SET
6.1. CHECKING OPERATION OF THE ELECTROPUMP
a) Turn the main switch on the electropump panel to 1 (ON).
Check the direction of rotation of the electropump, starting it for a few moments with the START button and
check that, when viewed from the fan side, the motor is turning in a clockwise direction. If not, exchange on the
terminal board any two leads of the electropump panel power supply.
b) Turn the selector on the electropump panel to AUT position.
c) Open a valve in the system (or the pump manual start valve, located near the pressure switches)
d) Check that the electropump starts.
e) Close the valve in the system (or the pump manual start valve, located near the pressure switches)
f) Put the system under pressure.
g) Stop the electropump with the STOP button on the electric panel.
To check failed starting of the electric pump see the electropump instructions manual.
ENGLISH
THIS MOMENT THE DIESEL MOTOR
39
PUMP MAY START