Immergas VICTRIX 75 - Cascade Installation Options; ISPESL Safety Devices for Cascade; Flue Manifold for Cascade

43
STV75 ed 01/08 VICTRIX 75
ISPESL safety devices for boilers installed in a
cascade (optional).
With this kit (optional) the ISPESL specications regarding
safety in systems with powers higher than 35 kW are complied
with.
e safety devices and checks consist primarily in an ISPESL
approved thermometer (5), an ISPESL approved manually
reset thermostat (6) and an ISPESL approved manually reset
pressure switch (7).
e contacts of the thermostat (6) and pressure switch (7)
must be installed electrically in series with the boiler’s power
input.
e stub pipes, which are part of the kit, are connected di-
rectly to the boiler’s ow and return manifolds with threaded
elements and, just like the original Immergas hydraulic
manifolds, these too can be installed with the output facing
the right or left.
On the system ow stub pipe it is also possible to mount a
thermometer holder housing device (2) and a probe for the
gas shut-o valve (3). e kit also includes an ISPESL type
approved manometer holder cock element (4) and a ISPESL
approved manometer (11), complete with water hammer
reducing loop (10).
e system return stub pipe, on the other hand, is set for the
connection of an expansion tank that has to be suitable for
system requirements.
Flue manifold for boilers in a cascade (optional).
G3/4"
8
G2"1/2
1
1
G2"1/2
2
5
6
4
9
G2"1/2
G2"1/2
3
7
10
11
4MPQF¡
e VICTRIX 75 boilers installed in a cascade (battery) in the
B
23
conguration, can be connected, by means of a manifold,
to just the one ue discharge pipe, the couple-on type,
tted with a no-return device (damper), so that the products
of combustion of a working boiler cannot interfere with the
combustion circuit of other boilers that are o.
e system (Green series) is made specically for this type of
appliance with an outside diameter of 125 mm and must lead
into an adequate ue.
e slanting angle of the 125 Ø discharge manifold must be at
least 3° and the condensate water produced by the appliances
must be made to runo into the sewer.
e ue evacuation system cannot be installed outdoors (the
pipes must not be exposed to the ultraviolet rays of the sun).
Note: Check, and adjust if necessary, the heat output of each
single boiler (see handbook and instruction sheet).
Technical Documentation
Technical Documentation