Standart ECO SNM 100-160, Инструкция по эксплуатации и обслуживанию

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• The electrical motors have to be built in accordance with EN 60034-1.
• Enclosures of electrical motors and control systems on the pump unit shall as a minimum
have protection in accordance with EN 60529 IP22. But in determining the degree of protection
of enclosures of electrical motors and control systems on the pump unit the operating and
environmental conditions must be taken into consideration.
If there is possibility of the pump operating with its delivery valve is closed completely
(that is, at zero flow rate) or almost closed (that is, at very little rate), a by-pass valve
should be used on the outlet flange of the pump or on the delivery pipe just after the
pump, but in advance of the control valve should be used. If such a valve is not used and
the pump operates for a long time, almost all power given by the engine converts to
thermal energy and transfers to the delivered liquid. This situation may cause overheating
and, consequently, cause significant failures.
• Electirical connection should be done by a qualified electrician. Current national regulation and
motor manufacturer’s instructions must be observed.
• Take all safety precautions listed in “Safety instructions”. Disconnect all power supplies prior to
doing any work.
• The supply cable must be laid in such a way that it never touches the pipework, pump and motor
casing.
• Check voltage, phase and frequency on motor nameplate with the mains.
• The electric motor must be protected against overloading by means of circuit breakers and/or fuses.
Circuit breakers and fuses must be selected in accordance with full load amperage of the motor
appearing on the motor rating plate.
• It is recommended to use PTC (passive thermal control) on motor, bu this is optional depending on
customer requirement. In case of using PTC, these should be connected via corresponding terminals
in the terminal box and the PTC should be connected to the thermal trip mechanism.
• Prior to connection the electrical wiring rotate the pump shaft by hand to make sure rotor rotates
easily.
• Connect the electrical wiring in accordance with local electrical codes and make sure to ground the
motor.
• The connection diagram can be found in the terminal box of the motor or in the instruction manual.
• The mains connection on the terminal box depends on the nominal power of the motor, the power
supply and the type of connection. The necessary coneccton of the bridges in the terminal box is
shown in the following (
Table 2 ve Figure 7a, 7b, 7c)
.
4.6- Electrical Connections
4.5- Minimum Flow
ATTENTION
ATTENTION