Operating Pressure - Comet MTP MC 8 Instrucciones Para El Ensamblaje -Uso Y Mantenimiento

WARNING
• In the case of the MTP P 48 motor pumps, a Skilled Technician will have to be contacted for any oil top-ups
because the oil filling cap is not directly accessible.
b) If present, check the correct inflation of the pressure accumulator by means of a normal compressed-air gun
with pressure gauge of the type of those used to check tyre inflation pressure.
Inflation depends on the pressure range within which the motor pump will be operating, according to the
indications of the following table:

OPERATING PRESSURE

bar
2 - 5
5 - 10
10 - 20
20 - 50
CAUTION
• In case of operation at very low temperatures, make sure there is no ice inside the motor pump and pipes.
• Perform the checks required by routine maintenance, with special reference to those relating to the oil.
CHECKING AND CONNECTING UP TO THE POWER SUPPLY
WARNING
• Also follow the instructions contained in the manual of the machine in which the motor pump is
integrated.
• A Skilled Technician must:
- make sure the power supply of the motor pump features a suitable fuse and is in conformity with the details
shown on the plate (12): in particular, the power voltage must not be outside the ± 5% range;
- connect a plug in compliance with the laws applicable in the country where the machine in which the motor
pump is integrated is installed, in the case of the power lead being without such plug and of the motor pump
not being permanently connected to a power supply source.
• The connection to the power source must be made by a Skilled Technician and must be in compliance with
the requirements of IEC 60364-1.
The power supply line of the motor pump must be fitted with a switch able to interrupt the power supply
whenever ground dispersion exceeds 30 mA for 30 ms or with a device for testing the earth circuit.
• If the motor pump does not have a power lead and plug, or another device for disconnecting it from the mains,
with a contact opening distance that allows complete disconnection in overvoltage III category conditions, such
disconnection devices must be fitted to the supply mains in compliance with installation regulations.
Note: in this use and maintenance manual, for the sake of simplicity, the motor pump shall always be deemed
connected to the power mains by means of a plug.
If the motor pump is permanently connected to the power supply, this means:
- the mains disconnection device in off ("0") position is equivalent to removing the plug from the power socket;
- the mains disconnection device in on ("1") position is equivalent to fitting the plug in the power socket.
• In the event of the power cable being too short, an extension can be used as long as this does not exceed
50 m/164 ft, and that the cross section of the leads is at least 1.5 mm
2
or 2.5 mm .
• WARNING. If an extension is used, the plug and the socket must be of the sealed-immersion type.
• WARNING. Inadequate extensions can be dangerous.
• Do not use reductions or adapters between power plug and socket.
28
psi
29 -73
73 - 145
145 - 290
290 - 725
(MOTOR PUMPS WITH ELECTRIC MOTOR)
ACCUMULATOR INFLATION PRESSURE
bar
2
2 - 5
5 - 7
7
2 (motor pumps with inputs below 13 A),
psi
29
29 - 73
72 - 102
102