Immergas Victrix Pro 80 2ErP - 3.2 Schema elettrico.; 3.3 Eventuali inconvenienti e loro cause.; 3.4 Conversione della caldaia in caso di cambio del gas.; 3.2 Schemi elettrici.

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INSTALLERUSER
MAINTENANCE TECHNICIAN
3.6 VERY LOW VOLTAGE WIRING DIAGRAM.
Key: A2 - Electronic board A4 - Display board B1 - Flow probe B1-2 - System side ow probe B2 - Domestic hot water probe (optional) B4 - External temperature probe (optional) B5 - Return probe B10 - Flue probe
B25 - System ow meter E4 - Safety thermostat E5 - -Heat-exchanger safety thermostat
(manual reset)
E13 - Flue safety thermofuse M1 - Boiler circulator pump M20 - Fan S5 - System pressure switch S6 - Air pressure switch S20 - ON/OFF room thermostat (optional) X40 - Room thermostat jumper
1 - Testing (Bus Microcom) 2 - Testing (WE=BUS) 3 - 0 - 10 V analogue input 4 - Open erm BUS type 5 - “Simple cascade” communication bus
Colour key: BK - Black BL - Blue BR - Brown G - Green GY - Grey OR - Orange P - Purple PK - Pink R - Red Y - Yellow Y/G - Yellow / Green W - White W/BK - White / Black
Jumper X40 must be removed when the Room thermostat is con-
nected; in addition, it must be eliminated also in case of connection
to “WE-BUS”, “0-10”, “Simple cascade BUS”, BUS OT.
A thermostat can be used instead of B2 (set the P29 = 17 para-
meter).
Congure the corresponding parameters when connecting in
“simple cascade”, or when connecting in “system side ow probe”,
or “D.H.W. pump”.
OT1 and OT2 are used for an Openerm “type” connection:
complete functionality and compatibility with all devices is not
guaranteed.