Immergas VICTRIX ZEUS Superior kW I User manual

VICTRIX ZEUS Superior kW I
Wall-mounted condensing boiler
with domestic hot water
storage tank
VICTRIX ZEUS Superior kW I

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STVZSkW ed 09/08 VICTRIX ZEUS Superior kW I
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VICTRIX ZEUS Superior 26-32 kW I
Wall-mounted, fan-assisted condensing boiler
with domestic hot water storage tank
VICTRIX ZEUS Superior 26 kW I
VICTRIX ZEUS Superior 32 kW I
VICTRIX ZEUS Superior kW I is a wall-mounted, sealed
chamber, fan-assisted generator (type C) for central heating and
the production of domestic hot water with storage tank.
e VICTRIX ZEUS Superior kW I range are type-approved
for installation outside the building in a partially protected
place.
N.B.: A partially protected location is one in which the appliance
is not exposed to the direct action of the weather (rain, snow,
hail, etc..).
e boiler can also be installed in the B23 conguration using
the relevant kit (optional).
e appliance is available with useful heat output of 21.0
kW(25.8 kW in DHW mode) and 32 kW which, thanks to
condensing technology, distinguishes itself due to its high
eciency and large eld of modulation (from 20 % to 100 %
of the nominal heat output).
e boiler has a total premix combustion system that gua-
rantees particularly reduced pollutant emissions and allows
functioning with natural gas or LPG.
Adjustment and control are entrusted to an integrated P.C.B.
with micro processor with continuous ame modulation by
means of 3 sensors (1 DHW and 2 CH).
e new electronics allows the connection of the appliance
to the Comando Amico Remoto remote control and to the
Super Comando Amico Remoto remote control; both allow
to easily manage and check the boiler at a distance. Moreover,
the Super CAR allows the display of the relative humidity of
the room and the weather forecast.
General features.
Using the Super CAR it is possible to indierently vary some
settings from the boiler control panel and from the Super CAR
control panel, such as: selection of Summer Winter, DHW set
point, DHW comfort status, Reset.
e boiler has an anti-freeze safety device as per standard
that protects it to a minimum temperature of -5°C (optional
to -15°C).
e hydraulic circuit has a water-gas heat exchanger with
coil in STAINLESS STEEL and uses the new hydraulic unit
composite material which, as well as the pump and electric
3-way valve that according to necessity allow boiler water
to circulate in the CH system or in the storage tank coil for
the production of DHW, also houses the hydraulic control
devices (absolute system pressure switch, 3 bar safety valve, system
adjustable by-pass, etc...).
e boiler functioning parameters are set using the buttons
and knobs while display of the status, functioning mode and
anomalies takes place on the back-lit digital display.
e VICTRIX ZEUS Superior kW I boiler must be installed
using the intake/exhaust kits or the ducting systems (Ø 60 mm
rigid, Ø 80 mm rigid and Ø 80 mm exible) realised in plastic
and designed expressly for Immergas condensing boilers.

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VICTRIX ZEUS Superior kW I main components and connections.
Key:
V - Electric connection
G - Gas supply
SC - Condensate drain (minimum internal diameter
Ø 13 mm)
R - System return
M - System ow
RC - Domestic hot water pump (optional)
AC - Domestic hot water outlet
AF - Domestic hot water inlet
Height (mm) Width (mm) Depth (mm)
900 600 466
CONNECTIONS
GAS DOMESTIC
HOT WATER SYSTEM
GAC AF R M
1/2” 1/2” 1/2” 3/4” 3/4”

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VICTRIX ZEUS Superior kW I control panel.
Key:
- Stand-by - On Button
A- Summer ( ) and winter ( ) functioning mode selection
button
B- Domestic hot water priority button ( )
C- (RESET) / menu exit (ESC) reset button
D- Menu entry button (MENU)/ data conrmation (OK)
1 - Domestic hot water temperature selector switch
2 - Domestic hot water temperature set
3 - Central heating water temperature selector switch
4 - Central heating temperature set
5 - Anomaly presence
6 - Display of boiler functioning status
8 - Flame presence symbol and relative power scale
9 and 7 - Primary heat exchanger output water temperature
10 - Boiler in Stand-by
11 - Boiler connected to remote control (Optional)
12 - Functioning in summer mode
13 - Anti-freeze function in progress.
14 - Functioning in winter mode
15 - Functioning with DHW priority active
16 - Connection to external tools for technician
17 - Display of menu items
18 - Functioning with external temperature probe active
19 - Display of data conrmation or menu access
20 and 7- External temperature display
with external probe connected (optional)
21 - Display of reset or exit menu request
22 - Chimney sweep function in progress
23 - Boiler manometer
24 - Multifunction display

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VICTRIX ZEUS Superior kW I main components.
Key:
1 - System lling valve
2 - Condensate drain trap
3 - System draining valve
4 - Gas valve
5 - ree-way valve (motorised)
6 - 3 bar safety valve
7 - System pressure switch
8 - Boiler pump
9 - Air vent valve
10 - Fan
11 - Gas nozzle
12 - Venturi
13 - Detection electrode
14 - Condensation module
15 - Flue safety thermostat
16 - Air intake pipe
17 - Sample points (air A) - (ue F)
18 - Negative signal pressure point
19 - Burner
20 - Positive signal pressure point
21 - Manual air vent valve
22 - Ignition electrodes
23 - System expansion vessel
24 - Delivery probe
25 - Safety thermostat
26 - Domestic hot water probe
27 - D.H.W. expansion vessel
28 - Return probe
29 - Stainless steel storage tank
30 - 8 bar safety valve
31 - Storage tank unit draining valve

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e hot water used for central heating and domestic hot water
is produced via a primary and a secondary circuit (DHW)
which are aected according to necessity.
VICTRIX ZEUS Superior kW I hydraulic diagram.
Key:
1 - Condensate drain trap
2 - Stainless steel coil for storage tank
3 - Magnesium anode
4 - Stainless steel storage tank
5 - Gas valve
6 - Gas valve outlet pressure point (P3)
7 - Air/gas Venturi manifold
8 - Fan
9 - Gas nozzle
10 - Detection electrode
11 - Flue safety thermostat
12 - Air intake pipe
13 - Condensation module
14 - Manual air vent valve
15 - Flue hood
16 - Air sample point
17 - ∆p gas pressure point
18 - Flue sample point
19 - Flow probe
20 - Safety thermostat
21 - Burner
22 - Ignition electrodes
23 - Condensation module cover
24 - Venturi negative sign (P2)
25 - Venturi positive sign (P2)
26 - Return probe
27 - System expansion vessel
28 - Boiler pump
29 - Adjustable by-pass
30 - System pressure switch
31 - System draining valve
32 - 3-way valve (motorised)
33 - Domestic hot water probe
34 - 3 bar safety valve
35 - System lling valve
36 - Domestic hot water expansion vessel
37 - 8 bar safety valve
38 - Cold water inlet non-return valve
39 - Storage tank drain cock
G - Gas supply
SC - Condensate drain (minimum internal diame-
ter Ø 13 mm)
AC - Domestic hot water outlet
AF - Domestic cold water inlet
R - System return
M - System ow

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Primary circuit (boiler circuit).
e primary circuit, with relative control and safety devices,
is started every time there is a central heating or domestic
hot water request.
Operation (see hydraulic diagram).
e heat contained in the combustion products is absorbed
by the pipes of the water-gas primary heat exchanger with
coil (13) which then gives the heat up to the water made to
circulate inside the boiler pump (28).
e water is introduced directly into the system or can be
diverted inside the storage tank coil (2).
is depends on the position of the motorised 3-way valve
Head (kPa)
Flow rate Litres/h
A = Head available to the system on the third speed with by-pass excluded (adjustment screws tightened fully home)
B = Head available to the system on the second speed with by-pass excluded (adjustment screws tightened fully home)
C = Head available to the system on the rst speed with by-pass excluded (adjustment screws tightened fully home)
D = Total head available to the plant on the third speed (screws tightened by 1.5 revs with respect to the completely loose adjustment screws).
E = Total head available to the plant on the second speed (screws tightened by 1.5 revs with respect to the completely loose adjustment screws).
F = Total head available to the plant on the rst speed (screws tightened by 1.5 revs with respect to the completely loose adjustment screws).
Head (m H2O)
VICTRIX ZEUS Superior 26 kW I
Head (kPa)
Flow rate Litres/h
Head (m H2O)
VICTRIX ZEUS Superior 32 kW I
A
C
(32), which depending on request, allows ow towards the
system ow (M) and return (R) pipes or causes diversion
towards the coil (2).
Head-ow rate graphics.
e progress of the curve that represents the ow rate-head ratio
available to the system, depends on the functioning speed of the
pump and adjustment of the system by-pass which, according
to the position, allows to set greater or less head on he system.
e graphs below show the characteristic curves.
E
F
A
CB
F
E
B
D
D

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1
4
35
Boiler pump (1).
Operates on the primary circuit return immediately after the
3-way valve to which it is connected. It is part of the integrated
multifunction unit realised in composite material.
e pump leaves the factory with the speed set at "AUTO".
is means that the pump functions at three variable speed
in a way to keep the temperature dierence between ow and
return constant.
ere is a seat on the body where the automatic air vent valve
(2) is housed.
Primary heat exchanger
(condensation module).
It is formed by a casing that contains 4 (version 26 kW) and 5
(version 32 kW) coil-shaped elements.
Each element is made up from 5 elliptical spirals (3).
e entire module is realised in stainless steel and its internal
part makes up the sealed combustion chamber and the con-
densation chamber (2).
VICTRIX ZEUS Superior 26 kW I.
e rst three elements are aected directly by the action of
the cylindrical burner applied to the front, while the fourth is
arranged in the condensation chamber, which is separated from
the combustion chamber by sheet steel (see ue circuit).
To reduce head losses to a minimum and increase the ow rate
available to the system, the ow is made up from the parallel
connection of the rst two elements, the return instead, is made
up from the parallel connection of the last two elements.
VICTRIX ZEUS Superior 32 kW I.
e rst four elements are aected directly by the action of
the cylindrical burner applied to the front, while the fth is
arranged in the condensation chamber, which is separated from
the combustion chamber by sheet steel (see ue circuit).
To reduce head losses to a minimum and increase the ow
rate available to the system, the ow is made up from the
parallel connection of the rst three elements, the return,
instead is made up from the parallel connection of the last
two elements.
For both versions, the heat exchanger inlet is connected to
the pump ow and the outlet, on which the NTC central
heating probe is positioned (1), is connected to the primary
circuit ow.
e primary circuit return and ow pipes are coupled using
threaded ttings with at gasket.
e ue hood (4) is connected to the rear using a relevant
gasket blocked by a metal ring.
e condensate drain is also found in the lower part.
To ease the escape of any air bubbles still present in the coils,
there is a manual air vent in the upper part of the module
(5).
1
2
COMBUSTION
PRODUCTS
RETURN
FLOW
CONDENSATE
DRAIN

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Motorised 3-way valve.
It is an electric 3-way valve operating on he primary circuit
return that allows, according to request o (DHW or CH),
to introduce boiler water into the CH system or the storage
tank coil.
is depends on the position of the shutter (5) which, closes
the passage towards the system opening it at the same time
towards the storage tank (DHW position) or vice versa (CH
position).
e shutter (5) is moved into both positions by powering the
motor (1).
e hydraulic part is made up from a group of composite
material (2) that also integrates the pump and is put into
action thanks to a motor (1) that causes movement according
to necessity.
Operation.
When it is necessary to reach the CH or DHW position, the
motor (1) is activated by the P.C.B.
Functioning of the motor leads to the movement of the shutter
(5) at every 180° rotation and compresses (CH position) or lea-
ves (DHW position) the shutter contrast spring to release (4).
Both the spring (4) and the shutter (5) are situated inside the
3-way cartridge (3).
e hydraulic arrival at the requested position alternatively
causes the opening and closure of one of the two end run micro
switches (6) organised inside the motor box (1).
is allows to remove voltage to the motor blocking it in the
position reached and to enable motor functioning only in the
presence of a dierent request (DHW or CH signal).
Storage tank
coil
return
Flow
Pump
System
Return
PUMP
RETURN
SYSTEM
RETURN
COIL RETURN