Electrical Connections Of Pol 945 Expansion - Siemens TUTORbit POL687 Instructions For Installation, Use And Maintenance Manual

4 - INSTALLATION
Input/output description
Legend
Solar tank sensor
30
(NTC 10kohm B3435)
Supply sensor "n"
31
(NTC 10kohm B3435)
32 Circuit "n" RT
33 Anti-legionella Forcing
34 Shuffle pump
35 Zone "n" pump
3 way valve zone "n" open
36
3 way valve zone "n" close Q33; Q44
ATTENTION !!! The terminals marked with (1), being subjected to very low safety voltage (24Vdc), must flow
in conduits other than 230Vac power supplies.
Figure 4-3 - Electrical connections POL945
TUTORBIT
4.2 - Electrical connections
of POL 945 expansion
The POL 945 expansion can be used for different purposes,
depending on the logical address that is set (see Section 4.4).
When the logical address "1" is set, the POL 945 expansion
can control:
a.- An heating zone;
b.- A solar zone;
c.- The start of the anti-legionella cycle from an external
input;
d.- The shuffle pump for multiple tanks or for anti-legionella
with solar.
If the POL 945 expansion is used with logical address "2", "3"
or "4" (see Section 4.4), it can only control one heating zone
(see diagrams in Section 4.21).
The POL 945 expansion can be installed on a DIN rail and is
supplied with the terminals for the electrical connections and
the bayonet for the electrical connection to TutorBit.
legionella forcing" (33) and "Shuffle pump" (34) devices
of the table in Figure 4-3 can only be connected to the
expansion "POL 945 (Circuit 3)" ( see Figure 4-5).
Corresponding terminals on
expansion POL945
X1; M
X2; M
X3; M
X4; M
Q13; Q14
Q13; Q24
Q33; Q34
10
ATTENTION!!! The "Solar tank sensor" (30), "Anti-
Characteristics of the cables to be used
and maximum electrical absorption
(1) Ø 1,5 mm / 20 m Max o 100 m shielded cable;
2
(1) Ø 1,5 mm / 20 m Max o 100 m shielded cable;
2
(1) Ø 1,5 mm / 20 m Max o 100 m shielded cable;
2
(1) Ø 1,5 mm / 20 m Max o 100 m shielded cable;
2
Ø 2,5 mm / 50 m Max / 3A Max;
2
Ø 2,5 mm / 50 m Max / 3A Max;
2
Ø 2,5 mm / 50 m Max / 3A Max;
2
Ø 2,5 mm / 50 m Max / 3A Max;
2
COSMOGAS