6.9. Diesel Motor Ventilation; Electrical Connection; Diesel Motor Pump Connections; Checking Operation Of The Set - DAB 1 KVT Installations- Und Wartungsanleitungen

6.9. 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).
7.

ELECTRICAL CONNECTION

ATTENTION: RESPECT THE SAFETY REGULATIONS IN FORCE
7.1. 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 cause
7.2.
irremediable damage.
7.3. Connect the leads of the power supply cable to the terminal board on the control panel, giving priority to
the earth lead.
For the wiring diagram of the control panel and the respective informative notes, see the enclosed documentation.
8.

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.
9.

CHECKING OPERATION OF THE SET

9.1.

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.
ATTENTION: DURING OPERATION OF THE ELECTROPUMP:

Check for any water leaks in the system and stop the electropump if necessary.

The contact that indicates when the electropump is running closes and may activate any connected
alarms.
ENGLISH
THIS MOMENT THE DIESEL MOTOR
54
PUMP MAY START