Immergas VICTRIX 115 1 I Bedienungsanleitung

VICTRIX 115 1 I

Condensation-type wall-hung boiler

for Central Heating only

pre-engineered for external

storage tank

VICTRIX 115 1 I

STV115 ed 09/10 VICTRIX 115

Wall-hung condensing, open chamber

boiler for central heating only or with

sealed chamber and fan assisted

circulation.

VICTRIX 115 1 I

VICTRIX 115 is a wall-hung condensing, open chamber

boiler for central heating only or with sealed chamber and

fan assisted circulation. It is set-up thanks to a relevant kit

(optional) for coupling to a separate Immergas storage tank

unit for the production of DHW, which can also be coupled

to solar systems.

e boiler is type-approved for the installation inside a heating

control unit and outside the building and can be installed

individually or in cascade, i.e. installation of several boilers in

set on the same system (up to a maximum of three appliances).

To complete the installation, it is possible to use (optional)

hydraulic kits such as: ISPESL safety kit, hydraulic manifold

kit with lter, 3-way valve kit for coupling to storage tank kit,

hydraulic manifolds kit for the connection of two or three

boilers in set.

Thanks to condensation technology, VICTRIX 115 is

characterised for its high eciency and for the large modulating

eld (from 26 % to 100 % of the nominal heat output).

e boiler has heat output of 111 kW (95,460 kcal/h) and is

equipped with an innovative total premix combustion system,

which guarantees particularly low pollutant emissions and

allows functioning with methane or LPG.

Adjustment and control of the appliance are entrusted to an

electronic P.C.B. with microprocessor which, via display, shows

the functioning state of the boiler (temperatures, functioning

state, error codes, etc.).

e hydraulic circuit has a water-gas heat exchanger with

stainless steel twin coil.

e boilers are protected as per standard by an anti-freeze safety

General features.

device up to a temperature of -5°C.

e VICTRIX 115 boiler must be installed using particular

green series intake/exhaust kits in plastic and, however,

dedicated for the VICTRIX 115 boiler, whether it is installed

in individual conguration or in cascade (up to a maximum

of three appliances).

For ue gas exhaust, it is also possible to use the ducting

system (Ø 80 mm exible) . is is manufactured in plastic

and expressly designed for the Immergas condensing boiler.

VICTRIX 115 1 I

Technical Documentation Technical Documentation

STV115 ed 09/10 VICTRIX 115

VICTRIX 115 main dimensions.

Key:

V - Power supply connection

G - Gas supply

R - System return

M - System ow

SC - Condensate drain (minimum

internal diameter Ø 13 mm)

Height (mm) Length (mm) Depth (mm)

1010 600 610

Connections

GAS SYSTEM

G R M

1” 1”1/2 1”1/2

Technical DocumentationTechnical Documentation

STV115 ed 09/10 VICTRIX 115

VICTRIX 115 main components.

Key:

1 - Draining funnel

2 - Burner

3 - Flue probe

4 - Flue hood

5 - Condensation module

6 - Air intake pipe

7 - Ignition electrode

8 - System ow regulation NTC probe

9 - System return regulation NTC probe

10 - Sleeve with seats for Venturi

11 - Venturi

12 - Gas nozzle

13 - Air fan

14 - Current transformer

15 - Condensate drain trap

16 - Absolute pressure switch

17 - 4 bar safety valve

18 - P.C.B.

19 - Condensate drain pipe

20 - Sample points (air A) - (ue gases F)

21 - Air vent valve

22 - Condensation module cover

23 - Over-heating safety thermostat

24 - Detection electrode

25 - Pump

26 - Gas valve

Technical Documentation Technical Documentation

STV115 ed 09/10 VICTRIX 115

VICTRIX 115 control panel.

Key:

1 - Main switch

2 - User interface viewer display

3 - Boiler manometer

Technical DocumentationTechnical Documentation

STV115 ed 09/10 VICTRIX 115

VICTRIX 115 hydraulic circuit.

Key:

1 - Draining funnel on view

2 - ISPESL type-approved 4 bar safety valve

3 - Boiler draining valve

4 - Absolute pressure switch

5 - Gas valve

6 - Air fan

7 - Gas nozzle

8 - Air intake pipe

9 - Ignition electrode

10 - Condensation module cover

11 - Condensation module

12 - Flue hood

13 - Air sample point

14 - Flue sample point

15 - Automatic air vent valve

16 - System ow regulation probe

17 - System return regulation probe

18 - Over-heating safety thermostat

19 - Flue probe

20 - Burner

21 - Detection electrode

22 - Air/gas Venturi manifold

23 - Venturi positive sign (P1)

24 - Boiler pump

25 - Condensate trap siphon

M - System ow

SC - Condensate drain

G - Gas supply

R - System return

Technical Documentation Technical Documentation

STV115 ed 09/10 VICTRIX 115

Primary circuit (boiler circuit).

e primary circuit, with relative control and safety devices,

is started every time there is a central heating or anti-freeze

request.

Operation.

e heat contained in the combustion products is absorbed

by the pipes of the water-gas heat exchanger with coil inserted

in the condensation module (11) which, then gives the heat

up to the water made to circulate inside the boiler pump (4).

Head-ow rate graphics.

e trend of the curve that represents the ow rate-head ratio

available to the system, depends on the pump functioning

speed.

A = Head available to the system on the individual boiler maximum speed.

B = Head available to the system on the individual boiler second speed.

C = Head available to the system on maximum speed with the non-return valve for boilers in cascade (set)

D = Head available to the system on second speed with the non-return valve for boilers in cascade (set)

Pump.

e pump operates on the primary circuit return and is

physically xed onto the components sheet steel support via

a xing tting.

Head (kPa)

Flow rate l/h

Head (m H2O)

Technical DocumentationTechnical Documentation

STV115 ed 09/10 VICTRIX 115

Primary heat exchanger

(condensation module).

It is formed from a casing that contains 18 elements with a

coil shape.

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 upper

part the condensation chamber (4).

e lower twelve elements are aected directly by the action

of the cylindrical burner, while the six upper elements are ar-

ranged in the condensation chamber (4), 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 nine elements, the return, instead is made

up from the parallel connection of the other nine elements.

e heat exchanger inlet is connected to the boiler pump ow

on which the system return NTC probe is positioned (6,)

while the output on which the system ow NTC probe (7) is

positioned, is connected to the primary circuit ow.

e primary circuit return and ow pipes are coupled using

threaded ttings with at gasket.

e over-temperature safety thermostat (1) is present on the

system ow pipe.

e ue hood (5) is connected on the upper part of the module

via a relevant sealing gasket and is xed using screws to the

support frame.

e condensate drain is also found in the lower part of the

module.

Safety devices and controls.

System pressure switch (2).

Detects the pressure inside the primary circuit.

Its seat is on the system ow pipe and is coupled to a micro

switch that prevents functioning of the burner when the pres-

sure detected is below 0.3 bar.

Prevents overheating of the main heat exchanger.

ISPESL type-approved 4 bar safety valve (3).

Prevents the safety pressure in the circuit from being exceeded

(4 bar).

It is connected via a xing tting to the door block valve (1),

which in turn is connected to the system ow pipe.

Its intervention causes water to escape from the system ow

pipe.

An extension pipe is connected to the valve (4) that ends with

a collection funnel (5).

Condensate

Drain

System

Return

System

Flow

Flue gas

System

Flow

Technical Documentation Technical Documentation

STV115 ed 09/10 VICTRIX 115

Air-gas circuit.

e circuit consists of a total premix combustion system com-

posed of a fan (7), a pneumatic gas valve (9), a Venturi pipe

(5) and a special cylindrical burner (4) that operates inside the

condensation module.

Operation.

e fan (7) is controlled by the integrated P.C.B. that varies

its speed depending on the output requested.

Its functioning allows to withdraw combustion agent air from

the ue hood (3) which results in contact with the outdoors and

introduce it in a conduit where a Venturi pipe is inserted (5).

At the inlet to the Venturi (5) there is a positive pressure signal

(P1) variable in a directly proportional manner to the amount

of air taken in by the fan (7) and which is detected by a pressure

point connected to the pneumatic gas valve (9).

e electric power supply of the valve main coils causes both

internal shutters to open and allows the passage of gas, whose

outlet pressure is regulated by the same pneumatic valve in a

1:1 ratio to pressure “P1”.

e gas is injected at the entry of the Venturi pipes (5) through

a nozzle (6), where the premix starts with the combustion

agent air.

e mixture obtained in this way is ignited on the surface

of the cylindrical burner (4) by the discharge of the ignition

electrodes (10).

Gas valve.

e gas valve is equipped with two main coils controlled by the

integrated P.C.B. and with a pneumatic unit that modulates

the outlet gas pressure in 1:1 ratio to the pressure (P1) detected

on the inlet of the Venturi pipe.

e calibration of the ratio between the air and gas pressures

is carried out on the valve (o-set) (see gas regulations).

Electric coils (4).

ere are two ON-OFF coils that are powered (24 Vac) by an

integrated P.C.B. when the burner must be ignited.

ey are connected in series and powered by a voltage of 24

V through a connection connector (3).

Pneumatic unit (2).

Allows to vary the outlet pressure in 1:1 ratio with the pressure

(P1) detected at the inlet of the Venturi pipe that is taken back

to the valve using a small silicone pipe (1).

anks to this system, the percentages in the air-gas mixture

are maintained constant at optimal values on the entire range

of modulation, thus guaranteeing a more or less constant

combustion eciency.

e air-gas ratio calibration can be performed using the o-set

adjusting screw (2).

is is necessary only when, after having performed ue

analysis, incorrect combustion parameter values are detected

(see air-gas ratio regulation).

Technical DocumentationTechnical Documentation

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