Electrical Installation; Circuit Diagram - Pahlen Aqua HL Series User Manual

Electric heater Aqua HL line

Electrical Installation

The electrical installation work must only be performed by a qualified electrician.
The plumbing installation must be complete before the electrical installation work is done.
If no external motor protector is present, connection blocks P1 and P2 must be connected together (strapped).
If the circulation pump is fitted with a protective motor auxiliary relay, this must be connected to connection blocks P1 and P2;
refer to the schematic diagram for the respective voltage and number of phases. When the motor protector is engaged,
the circuit shall be closed with a floating-voltage change-over contact.
Make sure that the connecting wire cannot come into contact with the hot parts of the element.
3-phase 400/415V AC

Circuit diagram

3-phase
400V AC
S
F
L1
L1
F
L2
L2
F
L3
L3
N
F1 F2
(100mA) (2AT för L1)
J1
bu
N 4
gr 0,75mm²
RC1
N 3
gn 0,75mm²
L1 2
bk
L1 1
Transformer
Relay
J4
Flow switch
Control
circuit board
J3
J2
Temp.sensor
pool
bk 2,5mm²
br 2,5mm²
wh 2,5mm²
bu 0,75mm²
yl/gn 2,5mm²
Display
circuit
board
Overheating
limit control
OH
wh 0,75mm²
or 0,75mm²
+45°
C1
S1
A1
8
ENGLISH
External motor protection
Note: Just signal circuit (5VDC)
P1
P2
Note: Just signal circuit (5VDC)
C2
Heating element 3–15kW
A2 A1 A2
bk 2,5mm²
br 2,5mm²
wh 2,5mm²
1-phase
M L1
N
External motor
protection
3-phase
L1
M
L2
L3
E10014-12
2016-06-29 ASA