Connecting The Low Temperature Thermostats; Electrical Connections - Riello BAG3 AP Instructions For The Installer And For Technical Assistance

2.6 Connecting the low temperature thermostats

The BAG are equipped with a low temperature limit thermostats
3
(TB) that protect the zones of low-temperature above 55 °C.
9
Do not connect the low temperature limit thermostats (TB) in
case of high temperature system.
For installations on low temperature system (fl oor) to choose
one of the following links:
- boiler - connect the low temperature thermostat TB, brown
wires (MA) and blue (BL), the input of TBT boiler (see installation
manual for connection and operation of the boiler in case of
intervention of at least one of the thermostats TB).
- BAG - connect the low temperature thermostat TB inside the
electrical panel of the module, removing jumper purple (VI) and
connecting the wires brown (MA) and blue (BL) in place of the
jumper previously removed.
In case of intervention of at least one of the thermostats TB will
stop the power to all the circulators and the request to the boiler
until normal operating conditions are restored.
MA
BI
NE

2.7 Electrical connections

3
The BAG is prearranged with rubber cable feed-throughs (1) lo-
cated in the top section of the box allowing wiring to be passed
through.
Below is an explanation of how to correctly connect the BAG
to the various devices and the boiler.
9
Before carrying out any electrical intervention, set the main
system switch to "off".
Connecting the BAG 3 to the electrical power supply
− Pass the cable (2) which comes out of the electrical con-
nection box (3) through the cable feed-through (1) and
connect it to the electrical power supply (phase-neu-
tral-earth) making sure not to connect it below the boiler
fuse.
MA
RS
VI
TB
1
3
Access to the BAG connection terminals.
− To access the BAG
screws (4) and remove the cover (3).
3
Connecting the BAG
mostats
− Carry out the connections of the ambient thermostats (TA)
and/or chrono-thermostats (CT) of each zone, as indicat-
ed in the diagrams below. Before connection, eliminate
the relative jumper (TA1,TA2 o TA3).
BAG 3 3 AP
9
GI/VE
P3
MA
BL
GI/VE
P2
MA
BL
BAG 3 2 AP
3 LE
GI/VE
P2
MA
BL
29
3
connection terminals, loosen the four
to the ambient thermostats/chrono-ther-
NE
TA3 BI TA2 NE TA1 RS
BI
8
7 6 5 4 3
GI/VE
P1 TBT3
MA
BL
TA3 dopo aver TA2 dopo aver TA1 dopo aver
rimosso ponticello rimosso ponticello
rimosso ponticello
bianco in morsettiera nero in morsettiera rosso in morsettiera
TA 1 RS VI
TA 2 NE
7 6 5 4
GI/VE
P1
TA2 dopo aver TA1 dopo aver
rimosso ponticello rimosso
MA
NERO ponticello ROSSO
BL
in morsettiera in morsettiera
INSTALLATION
2
3
4
3
VI
1
2
Cavo ingresso
di rete 230V
MA
MA
TBT1
TBT2
TBT1 - TBT2 - TBT3
dopo aver rimosso
ponticello viola in
morsettiera
1
3 2
Cavo ingresso
di rete 230V
MA
TBT2 TBT1
TBT1 - TBT2
dopo aver
rimosso
ponticello
VIOLA
in morsettiera