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Verfügbare Sprachen
Verfügbare Sprachen
The internal transformer is supplied complete with a self-resetting protection against overloads or short
circuits, which cuts out the supply voltage for 3 minutes.
Ref.
QM1
Automatic magnetothermal switch, for protection of the P1 motor supply line against overloads and short
circuits, with manual reset.
QM2
Automatic magnetothermal switch, for protection of the P2 motor supply line against overloads and short
circuits, with manual reset.
Set the automatic magnetothermal switches QM1–QM2 following the
indication of current absorbed in the electrical data plate.
QS1
Supply line insulating switch.
SA1
Selector for switching on the electronic module SZ2, assisted by the relay KA1, where:
SB1
Button for manual operation of the electropump P1 as long as the impulse lasts.
SB2
Button for manual operation of the electropump P2 as long as the impulse lasts.
KT1
Timer for regulating the strong static torque time. Possibility of regulation from 0.5 to 4 sec. set by the
manufacturer during calibration at 2 sec. (only for E2D 6 M HS ).
KT2
HL3
Green warning light indicating that electropump P1 is being fed. ⇒
HL6
Green warning light indicating that electropump P2 is being fed. ⇒
HL2
Red warning light indicating intervention of the protection of the
minimum pressure switch / float against dry operation
and maximum pressure switch P. MAX ⇒
Ref.
A
Connection terminals for the minimum level control float (for use only in systems with 3 level control floats
plus an alarm float if required). Input characteristics: 5V d. c. 2.5mA with module SZ2 switched on.
-
1
2
B
Systems with two floats (B+C): Connection terminals for the float (minimum/maximum level control of
electropump P1 and minimum level electropump P2) and for the thermostat or zone valve for circulating pumps.
3 - 4
Systems with three floats (A+B+C): Connection terminals for the maximum level control float of
electropump P1. Input characteristics: 5V d.c. 2.5mA with module SZ2 switched on; 24V a.c. 0.5A with
module SZ2 excluded.
C
Connection terminals for the maximum level control float of electropump P2 and for the thermostat or zone valve
for circulating pumps.
5 - 6
Input characteristics: 5V d.c. 2.5mA with module SZ2 switched on; 24V a.c. 0.5A with module SZ2 excluded.
N
Connection terminals for the dry alarm float. If used, remove the by-pass jumper which is a standard fitting
between terminals 21 and 22.
21 - 22
Input characteristics: 24V a.c. 40mA.
Controls A, B, C, N, R do not require connection to
to the PELV safety circuit (CEI EN 60204-1).
O
Connection (standard feature) for selecting operation of module SZ2 for drainage pumps; with the jumper
excluded, module SZ2 is set to operate for circulating pumps and booster sets.
23 - 24
P
Connection terminals for the alarm float. Contact characteristics: ≤ 8 Amp; ≤ 250V.
25 - 26
Any panel protection interventions do not exclude the float function.
Q
Connection terminals for the remote alarm for indicating intervention of the alarm float.
Contact characteristics: without potential, NA (normally open); ≤ 8 Amp; ≤ 250V.
31 - 32
R
Connecting terminals of the pressure switch for maximum pressure P.MAX.
If used, remove the by-pass jumper supplied as a standard feature between terminals 35 and 36.
35 - 36
Input characteristics: 24V a.c. 40mA.
L1-N
Connection leads for the electropump P1/P2 for panel types E2D 2,6 M.
Scrupulously respect the required correspondence.
C-A-P
Connection leads for the electropump P1/P2 for panel types E2D 6 M - E2D 6 M HS.
ENGLISH
Function (references on the enclosed wiring diagrams booklet)
Electropumps controlled by the electronic module SZ2.
Electropumps controlled directly by the floats or thermostats and zone valves
(electronic module SZ2 excluded).
Function (references on the enclosed wiring diagrams booklet)
30
ALARM
as they are connected
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