Espa MULTIPOOL N, Instruction Manual, Page: 10 / 40

10
EN
5. MAINTENANCE
Under normal conditions these pumps require no
special or planned maintenance.
Clean the pump with a damp cloth without using
harsh products.
If the pump is not to be operated for a long
period it is recommended to remove it from
the installation, drain down and store in a dry,
well ventilated place.
ATTENTION: In the event of faults or
damage occurring to the pump, repairs
should only be carried out by an authorised
service agent.
The Official Technical Services list is in
www.espa.com .
When the pump is eventually disposed of, please
note that it contains no toxic or polluting material.
All main components are material identified to allow
selective disposal.
7. POSSIBLE FAULTS, CAUSES AND
SOLUTIONS
1) The motor does not start.
2) Motor operates but there is no pressure.
3) Motor over-heating.
4) Pump does not deliver rated capacity.
5) Motor starts and stops automatically.
6) Shaft rotates with difficulty.
6. PLATE SHOWING CHARACTERISTICS
DESCRIPTION
1
Item reference
2
V fre 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 + year of manufacture
8
Humidity protection level
9
Minimum working pressure
10
Maximum pressure
11
Pump serial no. (Fig.4)
12
Max. liquid temperature
13 Motor max. nominal output (P2)
14
Electric pump unit absorbed power(P1)
15
Designated motor insulation
16
Continuous operation symbol
17
Maximum nominal intensity at nominal voltage
18
Name and address of vendor responsible for the product
8. TECHNICAL DATA
Liquid temperature… ..................... .4ºC - 40ºC
Ambient temperature: ..................... 0ºC - 40ºC
Storage temperature: ................... -10ºC - 50ºC
Ambient relative humidity, max.: ............... 95%
Motor class
I .
Other data see Figure 2.
1 2 3 4 5 6 POSSIBLE PROBLEM SOLUTIONS
X X
Pump blocked Disconnect it and take it to the official Technical
Service
X Foot valve clogged Clean it or replaced by new one
X X
Total head higher than expected Verify geometric head and loss of head
X X X
Wrong tension Check that the tension is the same as that on the
name plate
X X
Water level in well or tank has come
down Verify suction head
X
Fuse or thermal relay disconnected Change fuse or thermal relay
X X
Impellers are worn out Disconnect pump and take it to your Service
Dealer
X Foot valve not submerged Be sure suction pipe is submerged
X
Pump was not primed Fill pump body with water
X X Room not properly aired Provide good ventilation
X Air entry Seal unions and joints properly