Possible Faults, Causes And Solutions; Technical Data - Espa NADORSELF Manuel D'instructions

7. PLATE SHOWING CHARACTERISTICS
DESCRIPTION
1 Item reference
2 Voltage + frequency + item specifications
3 Flow
4 Pressure
5 Nominal voltage, no. stages, alternate current symbol and frequency
6 Energy efficiency index (Three-phase model)
6 Capacitor (Single-phase model)
7 EC mark
8 Humidity protection level
9 Minimum working pressure

8. POSSIBLE FAULTS, CAUSES AND SOLUTIONS

1) Pump does not prime.
2) Pump supplies scant flow.
3) Pump noisy.
4) Pump does not start.
5) Motor makes sound but does no start.
1 2 3 4 5 POSSIBLE PROBLEM
X X Air entry trough suction line
X X Motor turning direction reversed
X
Defective mechanical seal
X X Excessive suction height
Incorrect voltage
X X X
X
Suctioning out of water
Diameter of suction line smaller than
X X
required
X Incorrect pump attachment
X
Thermal relay tripped
X
Lack of power
X Motor blocked

9. TECHNICAL DATA

Liquid temperature: ......................... 4ºC - 40ºC
Ambient temperature: ..................... 0ºC - 40ºC
Storage temperature: ................... -10ºC - 50ºC
DESCRIPTION
10 Maximum pressure
11 Year and week of manufacture + Pump serial number
12 Thermal protection incorporated indicator
13 Max. liquid temperature
14 Motor max. nominal output (P2)
15 Electric pump unit absorbed power(P1)
16 Designated motor insulation
17 Continuous operation symbol
18 Maximum nominal intensity at nominal voltage
19 Name and address of vendor responsible for the product
SOLUTIONS
Verify condition of connectors and gaskets of suction line
Reverse 2 phases of the supply
Change mechanical seal
Excessive suction height
Verify the voltage specified on the nameplate and that of
the mains
Set suction in correct position
Correctly dimension suction line
Attach pump correctly
Reset thermal relay
Reset the fuses
Remove the motor and call the Technical Service
Ambient relative humidity, max.: ............... 95%
Motor class I.
Other data see Figure 2.
12
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