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STV75 ed 01/08 VICTRIX 75
Legend:
1 - VICTRIX 75 generator
2 - Cascade and zone regulator
3 - Zone regulator
4 - Modulating room thermostat
5 - External probe
6 - No.1 zone temperature probe (CMI-1)
7 - No. 2 zone temperature probe (CMI-2)
8 - Shared delivery probe
9 - Water tank temperature probe
10 - No.1 zone mixing valve (CMI-1)
11 - No. 2 zone mixing valve (CMI-2)
12 - No.1 zone central heating circuit pump (CMI-1)
13 - No. 2 zone central heating circuit pump (CMI-2)
14 - No. 3 zone direct circuit pump (HC)
15 - Water tank supply pump
16 - No.1 zone safety thermostat (CMI-1)
17 - No.2 zone safety thermostat (CMI-2)
ZONE 1
(MC 1)
ZONE 2
(MC 2)
ZONE 3
(HC)
19 - On-o fuel valve bulb
20 - ISPESL approved cock with pressure gauge
21 - ISPESL approved thermometer
22 - ISPESL approved manual reset pressure switch
23 - ISPESL approved manual reset thermostat
24 - Expansion vessel coupling
25 - Expansion vessel
26 - Manifold/mixing device
27 - External water tank unit
28 - Fuel on-o valve
29 - On-way valve
30 - Sludge collecting system lter
31 - ermometer holding pocket
32 - Flue stream adjusting device
33 - Condensate drain pipe
34 - System on-o cock
35 - ISPESL approved manometer
36 - Water hammer reducing loop
Example of installing VICTRIX 75 in a cascade.
e above example refers to three boilers installed in a cascade,
equipped with an ISPESL safety kit and a mixing manifold
(26). e system consists of two, low temperature mixed zones,
a high temperature zone and a storage tank for the production
of domestic hot water.
e system is controlled by a cascade regulator (2) that controls
the storage tank directly, two zone managers (3) that control the
two low-temperature zones and a modulating room thermostat
(4) that controls the high temperature zone.
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