13
ENG
“
kit OEM KEC
” +030222160 - rel. 1.0 - 03/11/2015
2.6.5
Wiring from the main panel to the pumping
unit
The electromechanical devices in the water circuit (motor, solenoid
valves, sensors) are already connected to the terminal block on top of the
pump. This terminal block needs to be connected to the following, using
three distinct and separate corrugated sheaths (Fig. 2.h):
A.
the three-wire power cable from the inverter to motor, Ø 14 mm
sheath;
B.
the signal cables from the electronic controller, Ø 14 mm sheath.
C.
the 24 Vac power supply to the solenoid valves from the relay outputs
on the electronic controller, Ø 25 mm sheath.
Use spiral sheath and corresponding fittings according to standards: EN
61386-1/-23 UL 224. The sheath gaskets are supplied.
Important
: using just one corrugated sheath for the power cable to
the motor and the signal cables will causes malfunctions due to
electromagnetic interference. To meet the requirements of EN 61000-6-2
2006 and EN 61000-6-4 2007, the EMC filters provided in the kits must be
used, KECEMCA000 (from 50 l/h to 400 l/h) or KECEMCB000 (from 800 l/h
to 1000 l/h).
Position of the sheath connection openings on the pumping unit
286
204
88
60
82
Fig. 2.h
Table 2.c lists the wiring to be completed by the user from the electrical
panel to the pumping unit. The cross-section of the cables shown here
applies to maximum distances of 15 m; for longer cables, the cross-
section needs to be increased to the next higher size available.
Wiring from the inverter and KEC controller to the pumping unit
terminal block
Wiring
Starts from
Runs to (terminal
block)
Cable cross-
section mm²
Cable cross-section
AWG
Position of sheath connection
Motor earth
PE inverter
PE
2.5
14
Left
Motor power supply
U inverter
U
2.5
14
Left
V inverter
V
2.5
14
Left
W inverter
W
2.5
14
Left
Fill solenoid valve
NO1 controller
NO1
1
16
Centre
Cabinet drain solenoid valve
NO2 controller
NO2
1
16
Centre
Solenoid valve, step 1
NO3 controller
NO3
1
16
Centre
Solenoid valve, step 2
NO4 controller
NO4
1
16
Centre
Drain solenoid valves, step 1-2
NO5 controller
NO5
1
16
Centre
Line drain solenoid valves
NO6 controller
NO6
1
16
Centre
Solenoid valve common
G0 trafo
G0A
1
16
Centre
Temperature sensor
U3 (J2) controller
T out
0.75
18
Right
GND (J2) controller
T GND
0.75
18
Right
Flow sensor
+VDC (J2) controller
F +Vdc
0.75
18
Right
U4 (J3) controller
F out
0.75
18
Right
GND (J3) controller
F GND
0.75
18
Right
Pressure sensor
+5Vdc controller
P +5Vdc
0.75
18
Right
U5 (J3) controller
P out
0.75
18
Right
GND (J3) controller
P GND
0.75
18
Right
Tab. 2.c
2.7 Electrical data
KEC***DH** pumping unit with KEC0**DH00 electrical system
Flow-rate [l/h]
Voltage [Vac]
No. of phases
Frequency [Hz]
Power [kW]
Current [A]
50
230
1
50
0.275
1.35
100
230
1
50
0.275
1.65
200
230
1
50
0.475
1.75
400
230
1
50
0.475
2.2
800
230
1
50
0.75
3.5
1000
230
1
50
0.75
3.7
Tab. 2.d
Made in accordance with EN 60204-1 2006; EN 61000-6-2 2006; EN 61000-6-4 2007. Insulation degree III.
In accordance with EN 61000-3-12, the unit is connected to a mains network with RSCE > 350 Ω
KEC***UH** pumping unit with KEC0**DH00 electrical system
Flow-rate [l/h]
Voltage [Vac]
No. of phases
Frequency [Hz]
Power [kW]
Current [A]
FLA
SCCR
50
230
1
60
0.350
1.35
0.35 HP/2A
5 kA
100
230
1
60
0.350
1.65
0.35 HP/2A
5 kA
200
230
1
60
0.475
1.75
0.5 HP/3.6A
5 kA
400
230
1
60
0.475
2.2
0.5 HP/3.6A
5 kA
800
230
1
60
0.850
3.5
1 HP/6A
5 kA
1000
230
1
60
0.850
3.7
1 HP/6A
5 kA
Tab. 2.e
Made in accordance with UL998.
