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Legend (fig. 41 - fig. 42)
1st zone (direct) room thermostat
72
2nd zone (direct) room thermostat
72b
External probe
138
1st zone (direct) circulating pump
307
2nd zone (direct) circulating pump
306
ISPESL safety devices (when required - not supplied)
I*
To manage the sliding temperature it is necessary to purchase the external probe accessory code 013018X0
- Parameters
Each system requires a different parameterization. Follow the access procedure given below.
"System Type Menu"
Change parameter P.01 of the "System Type Menu" to 4.
- Optional functions
As well as the electrical connections of the previous figure (required for this system configuration) there are options that
do not require settings.
Legend
Remote Control: it can be installed in place of 72 to manage the request of the 1st zone (direct)
139
Burner On indication (voltage-free output): the example shows the connection of an hour counter at 230Vac
300
Fault indication (voltage-free contact output): the example shows the connection of a lamp at 230Vac
301
Remote reset input (230Vac): the example shows the connection of a double-pole switch at 230Vac, allowing the resetting of a
302
block type fault
Fault indication (230Vac): the example shows the connection of a lamp at 230Vac
357
216
1
2
3
4
5
6
7
8
L N
302
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
139
37 38 39 40 41 42 43 44
cod. 3541Q764 - Rev. 00 - 05/2021
1st zone (direct)
a
2nd zone (direct)
b
Delivery
M
Return
R
9 10 11 12 13 14 15 16 17 18
300
301
357
N
fig. 43
FORCE W
L
EN
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