Installation
The Lowara Servitec unit is despatched mounted on a wooden pallet and covered in a protective film, it is
recommended that the unit be retained in the protective packaging until the product is to be
installed. The unit will arrive pre-packaged and wired ready for installation.
This product has been fully run tested at our works under simulated site conditions. The unit
should be thoroughly checked for physical damage that may have been caused during transit.
If the unit is found to have damage it must be reported immediately and should not be installed.
The unit must be sited in a clean well ventilated area with good all round access, two fixing holes are
provided in the back plate allowing the unit to be wall mounted.
Electrical Connections
The cable used for the incoming supply must be of adequate size to carry the motor full load current. This is
shown on the duty plate. All non power caballing should be limited to 2.5mm².
All connections must be made using the appropriate wiring drawings for the equipment being
installed, with particular attention being paid to the supply voltages.
The supply voltage is shown on the set duty plate.
Never operate this product with the control panel front cover removed.
It is essential that this equipment is earthed to the building earth system.
Pumps operate at 230v 50Hz
All wiring should be arranged such that it enters the control section through the appropriate cable glands.
2
Important:
Despite removing the mains plug, 230 V
may still be present at terminal 10, 11 12,
13 and 14, and at parts of the circuit board.
Fuse
Electronics
Fuse
Motor
Designation
Terminal
Signal
Note
Supply
1
PE
(230 V)
2
N
’servitec’ is fully wired with a shock-proof plug
3
L
Make-up motorized
ball valve
4
Y1
5
N
connected
6
PE
Pump
7
M1
8
N
connected
9
PE
External make-up
control
10
only for ’servitec levelcontrol’ mode
230 V wire on site
11
Common message
12
NC
(fl oating)
13
COM
wire on site
(optional)
14
NO
Not confi gured
15
+24 V DC
not wired up
16
E1
Water shortage
17
+24 V DC
not connected
(jumper)
switch
18
E1
Pressure measure-
ment transducer
19
+18 V
connected
20
AE
Terminal Diagram