victrix 50 - RVR.ie

2 

Portrait of a market leader in a steady growth. 

Immergas is the leading company in the Italian market of gas heating boilers. 

In the headquarters of Brescello work more than 700 people, spread 

over an area of 45.000 sq.m. In 2006 Immergas sold about 350.000 appliances; 

the turnover was 220 million euro, 52% of which on the international 

market. 

The range of products is continuously widening, in order to satisfy all market 

requests. At the moment Immergas offers more than 60 models, wall-mounted 

or floor standing, instantaneous, for outdoor installation, condensing, 

with sealed chamber. An extremely wide choice with a common characteristic: 

the research for reliability, long-life, convenience. 

Immergas: now available in 30 countries. 

Immergas presence on the international market has been increasing year 

after year. Today the brand is available in more than 30 countries; the company 

structure includes 8 branches in Europe and one in China, as well as 

shares in significant import firms all around the world. 

Immergas is deeply investing in promotion and communication, with the aim 

of supporting the brand and penetrating new markets. From Asia to South 

America the company is steadily expanding, with a policy based on quality, 

vanguard products and accurate service.

Low emissions and eco-friendly products: 

Planet Earth says thanks. 

Condense and enjoy. 

Immergas pays great attention to nature and environment. Our 

Research and Development Department is more and more ecooriented: 

this investment in terms of staff and resources is our 

contribution to make the world a cleaner space. 

When projecting new models, the search for energy saving is 

always the main issue, in order to reduce energy consumption 

and pollutant emissions. In Italy, Immergas is leader in the segment 

of condensing boilers, which offer up to 30% energy saving 

as compared to traditional ones. 

A condensing boiler is an eco-friendly boiler. The special burner allows to lower pollutant emissions such as carbon monoxide (CO) 

and nitrogen oxides (NOx), two of the main responsible of air pollution. In fact, condensing boilers belong to class 5, the most environment-friendly 

class established by the European standards (UNI EN 297 e UNI EN 483). 

Condensing boilers have an advanced modulating system which can perfectly adjust the heat output to the real needs of the heating 

system. The modulating range, wider than in traditional boilers, ensures the right comfort and wellness inside the house, in all different 

climatic situations throughout the year. 

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4 

Power: from 10 up to 584 kW! 

VICTRIX 75 and VICTRIX 50 are wall-hung condensing boilers with respectively heat outputs of 72 and 50 kW, designed by Immergas 

to satisfy different kinds of installation exigencies. The high efficiency ratings achieved are ideal when it comes to heating large volumes 

domestic systems (such as semi-detached houses or apartment blocks) and for commercial and industrial uses. 

VICTRIX 75 and VICTRIX 50 are heating only appliances, pre-engineered to operate both as single appliances or in cascade, with the 

advantage of providing a globally higher efficiency at lower running costs. 

The wide modulation range characterizing the VICTRIX models and the possibility to manage up to a maximum of 8 appliances in 

cascade, allow to obtain great flexibility in the offer of the available heat outputs. 

Modulation range 

10 kW 584 kW

The cascade system 

The cascade system consists in the installation of two or more modular generators in parallel, connected to a control system regulating 

its functioning as if it was a single appliance. The total heat output is equal to the sum of the single generators outputs. 

Distributing the heat output on more than one unit brings many important advantages: 

• Higher efficiency compared with the use of a single generator of great heat output, which would have to work with a reduced 

heating load for a good part of the heating period, with a consequent general lower efficiency. 

• Less expenses thanks to the better efficiency. 

• Greater safety as the subdivision in more units allows to maintain the heating function active even in case of maintenance on one 

of the connected appliances. 

• Greater flexibility with the possibility of distributing the heating request on all the appliances, while the functioning sequence 

avoids the fast deterioration of one boiler respect the others. 

Example of cascade functioning 

Minimum heat output Reduced heat output 

Medium heat output Maximum heat output 

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6 

The thermoregulation system 

Boilers VICTRIX 50 and VICTRIX 75 are provided with new generation electronics, offering the best performances thanks to their regulation 

flexibility. 

In case of zones systems or cascade systems, it will be necessary to pre-arrange an adequate thermoregulation device able to manage 

every single appliance and elaborate the information from the system, in order to meet the most varied operating requirements. 

Immergas thermoregulation system is composed of: 

Cascade and zones regulator 

Zone manager 

Modulating room thermostat 

Cascade and zones regulator 

It is the central unit of the thermoregulation system. It allows to control, monitor and program 

the operating sequence of a maximum of 8 generators in cascade. The regulator controls 

the boiler’s delivery temperature adjusting it to the system requirements. 

The regulator can manage up to 3 different zones (2 of which at high/low temperature) 

and a sanitary circuit for a separate storage tank. It is also possible to install up to 5 regulators 

in parallel (of which only one, called master, will be connected to the generators) to 

control up to a maximum of 15 heating zones and 5 storage tanks for the domestic hot 

water production. 

Zone manager 

Connected to the cascade and zones regulator, it allows to keep the operating appliance 

and the heating system information handy and under control. This means that the previously 

set functioning parameters (turn on/off, temperatures, etc.) can be easily modified by 

the user, without having to operate on the central regulator. 

Modulating room thermostat 

Connected to the cascade and zones regulator, it allows the user to regulate the room 

temperature of the single zones into which the system is divided. 

External probe 

Connected to the boiler, it allows to optimize the energy consumptions automatically 

adjusting the system delivery temperature to suit the outdoor temperature variations. 

System delivery probe 

It allows the cascade and zones regulator to manage the system temperature. 

Separate storage tank probe 

It allows the cascade and zones regulator to control the temperature of a separate storage 

tank.

The complete package 

In addition to VICTRIX 50 and VICTRIX 75 boilers, Immergas offers a series of accessories kits, specially thought and designed to simplify 

the project and installation of a heating system. 

External 

storage tank unit 

Thermoregulation 

kits 

Hydraulic 

manifolds 

Safety kits 

Flue systems 

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8 

VICTRIX 75 

VICTRIX 75 is an open chamber fan assisted wall-hung condensing boiler for heating only, 

equipped with circulator and safety valve. The boiler is approved for installation in both 

indoor heating plants and outside buildings, without requiring additional protection. It can 

be installed as single appliance or in cascade. 

The generator is equipped with electronic board, allowing to adjust the functioning 

parameters of the appliance to the specific exigencies of every single system. 

• Nominal heat output of 72 kW; 

• Minimum heat output of 18 kW; 

• Compact dimensions; 

• Stainless steel condensing module; 

• 4 bar safety valve with discharge funnel; 

• Double NTC probe for optimum temperature control; 

• IPX5D protection index; 

• Frost protection up to -5°C; 

• Control board with visual display; 

• Autodiagnosis system; 

• Possibility to connect a separate storage tank unit. 

Model Height Width Depth 

VICTRIX 75 950 mm 600 mm 525 mm 

Model 

Code 

N.G. 

L.P.G. 

Heat 

output 

kW 

Efficiency 

rating 

(D.P.R. 660/96) 

Condensing/ 

premixed 

burner 

Reduced 

pollutant emissions 

(NOx-CO) 

Protection 

index 

Frost 

protection 

VICTRIX 75 3.018511 72,6 4 stars IPX5D -5°C 

3.018511GPL 

MAIN OPTIONS 

Type Code 

External sensor 3.015266 

Three-way valve kit 3.015223 

Hydraulic manifold kit 3.015224 

MAIN FLUE KITS 

Type Code 

Terminal horizontal outlet kit Ø 80 3.015255 

Terminal vertical outlet kit Ø 80 3.015256 

Horizontal concentric kit Ø 80/125 3.015242 

For good performance and safe operation use Immergas “Green Series” pipes and terminal flue outlet only. 

NEW

VICTRIX 50 

VICTRIX 50 is an open chamber fan assisted wall-hung condensing boiler for heating only, 

equipped with circulator and safety valve. The boiler is approved for installation in both 

indoor heating plants and outside buildings, without requiring additional protection. It can 

be installed as single appliance or in cascade. 

The generator is equipped with electronic board, allowing to adjust the functioning 

parameters of the appliance to the specific exigencies of every single system. 

• Nominal heat output of 50 kW; 

• Minimum heat output of 10 kW; 

• Compact dimensions; 

• Stainless steel condensing module; 

• 4 bar safety valve with discharge funnel; 

• Double NTC probe for optimum temperature control; 

• IPX5D protection index; 

• Frost protection up to -5°C; 

• Control board with visual display; 

• Autodiagnosis system; 

• Possibility to connect a separate storage tank unit. 

Model Height Width Depth 

VICTRIX 50 950 mm 600 mm 525 mm 

Model 

Code 

N.G. 

L.P.G. 

Heat 

output 

kW 

Efficiency 

rating 

(D.P.R. 660/96) 

Condensing/ 

premixed 

burner 

Reduced 

pollutant emissions 

(NOx-CO) 

Protection 

index 

Frost 

protection 

VICTRIX 50 3.016359 50,0 4 stars IPX5D -5°C 

3.016359GPL 

MAIN OPTIONS 

Type Code 


Three-way valve kit 3.015223 

Hydraulic manifold kit 3.015224 

MAIN FLUE KITS 

Type Code 

Terminal horizontal outlet kit Ø 80 3.015255 



For good performance and safe operation use Immergas “Green Series” pipes and terminal flue outlet only. 

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Main dimensions and connections 

Horizontal 

concentric kit Ø 80/125 

HYDRAULIC CONNECTIONS 

HEATING 

R 

M 

Circulator head and flow rate graph 


Head (kPa) 

90 

80 

70 

60 

50 

40 

30 

20 

10 

Flow Rate/Head graph 

0 

0 

0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 

Flow rate (l/h) 

9.18 

8.16 

7.14 

6.12 

5.10 

4.08 

3.06 

2.04 

1.02 

Available head in the system: 

----- Available head at top speed with single boiler 

-----Available head at second speed with single boiler 

-----Available head at top speed with non return valve for boilers in cascade 

----- Available head at second speed with non return valve for boilers in cascade 

Head (m H 2O) 

GAS 

G 

3/4” 

Key: 

V - Electrical connection 

M - System delivery 

SC - Condensate drain 

G - Gas supply 

R - System return 

VICTRIX 75 

Head (kPa) 

90 

80 

70 

60 


40 

30 

20 

10 

11/2” 

Flow Rate/Head graph 

11/2” 

Flow rate (l/h) 

Horizontal outlet 

kit Ø 80 

CONDENSATE DRAIN 

SC 

25 mm 

0 

0 

0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 

9.18 

8.16 

7.14 

6.12 

5.10 

4.08 

3.06 

2.04 

1.02 

Head (m H 2O)


with a single boiler 

3 4 

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Hydraulic and electric diagrams 

Single generator for room heating and domestic hot water production with the storage tank connected to solar panels 

Hydraulic scheme 

Gas supply 

Electrical scheme 

Condensate 

Drain 

System filling 

Key: 

1 - VICTRIX 50/75 generator 

2 - Room thermostat 

3 - External probe 

4 - Thermometer trap 

5 - Fuel on-off valve bulb 

6 - ISPESL approved pressure gauge cock 

7 - Fuel on-off valve 

8 - ISPESL approved thermometer 

9 - ISPESL approved manually reset 

thermostat 

10 - ISPESL approved manually reset 

pressure switch 

Black 

Orange 

Red 

11 - System circulator 

12 - Expansion vessel connection 

13 - Expansion vessel 

14 - Three way valve 

15 - Manifold/mixer 

16 - Sludge collecting system filter 

17 - External storage tank unit 

18 - Storage tank unit probe 

19 - Solar panel control unit 

20 - Solar panel circulator 

21 - Solar panel 

22 - Solar panel probe 

Key: 

1 - VICTRIX 50/75 



4 - Room thermostat 

5 - Three way valve

Single generator with high/low temperature zones system with separate storage tank for the domestic hot water production 


Key: 

1 - VICTRIX 75/50 generator 






Gas supply 


Condensate 

Drain 

Key: 

1 - Zone 3 direct circuit pump (CD) 

2 - Storage tank unit supply pump 


4 - Zone 1 mixer valve (CMI-1) 

5 - Zone 1 heating circuit pump (CMI-1) 

6 - Zone 1 safety thermostat (CMI-1) 

7 - Zone 1 temperature probe (CMI-1) 





12 - Common delivery probe 

13 - Zone manager 

14 - Modulating room thermostat 

15 - External main switch 


17 - Cascade and zones regulator 




8 - ISPESL approved manually reset thermostat 

9 - ISPESL approved manually reset pressure switch 










ZONE 1 

(CMI1) 

ZONE 2 

(CMI2) 

ZONE 3 

(CD) 

ZONE 3 STORAGE TANK UNIT ZONE 1 ZONE 2 

230 Vac 50Hz 

Common 

Open 

Close 

Common 

Open 

Close 







25 - Non return valve 




29 - Storage tank unit 


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with boilers in cascade

Double battery of generators with high/low temperature zones system and separate storage tank for the domestic hot water production 

Hydraulic scheme Key: 


2 - System shut off knob 




Condensate 

Drain 

Gas supply 


ZONE 3 STORAGE TANK UNIT ZONE 1 ZONE 2 

230 Vac 

50Hz 

Common 

Open 

Close 


Common 

Open 

Close 



8 - ISPESL approved manually reset pressure 

switch 
























Key: 



















Address 0 Address 1 Address 2 Address 3 Address 4 Address 5 

ZONE 1 

(CMI1) 

ZONE 2 

(CMI2) 

ZONE 3 

(CD) 

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Battery of generators with 6 high/low temperature zones systems and 2 separate storage tanks for the domestic hot water production 


Key: 


2 - System shut off knob 






8 - ISPESL approved manually reset pressure switch 










ZONE 3 STORAGE TANK 

UNIT 

230Vac 

50Hz 

Condensate 

drain 

Gas supply 

Common 

Open 

Close 

ZONE 1 

Common 

Open 

Close 
















32 - balancing valve 

ZONE 2 ZONE 3-1 STORAGE TANK 

UNIT 

ZONE 1-1 ZONE 2-1 

Address 0 Address 1 Address 2 


Common 

Open 

Close 

ZONE 1 

(CMI1) 

ZONE 1 

(CMI1) 

Common 

Open 

Close 

Key: 










ZONE 2 

(CMI2) 

ZONE 2 

(CMI2) 

ZONE 3 

(CD) 

ZONE 3 

(CD) 









18 - VICTRIX 75/50 generator

Technical information 

Maximum nominal heat input (heating) 

Minimum nominal heat input (heating) 

Maximum nominal heat output (heating) 

Minimum nominal heat output (heating) 

Efficiency at nominal heat output (80/60 °C) 

Efficiency at 30% of load (80/60 °C) 

Efficiency at nominal heat output (50/30 °C) 

Efficiency at 30% of load (50/30 °C) 

Efficiency at nominal heat output (40/30 °C) 

Efficiency at 30% of load (40/30 °C) 

Stack losses with burner on 

Stack losses with burner off 

Casing losses with burner on 

Casing losses with burner off 

Gas consumption at nominal heat output (heating)* 

Fumes temperature at max. nominal heat input* 

Fumes temperature at min. nominal heat input* 

Fumes flow rate at max. nominal heat input* 

Fumes flow rate at min. nominal heat input* 

CO2 at maximum heat input* 

CO2 at minimum heat input* 

CO at maximum heat input with 0% of O2* 

CO at minimum heat input with 0% of O2* 

NOx at maximum heat input with 0% of O2* 

NOx at minimum heat input with 0% of O2* 

Weighted CO* 

Weighted NOx * 

NOx class 

Central heating temperature range 

Maximum heating temperature 

Maximum operating pressure 

Available head with 1000 l/h flow rate 

Dimensions 

Height 

Width 

Depth 

Electrical supply 

Nominal power draw 

Installed electric power 

Fan power consumption 

Circulator power consumption 

Protection index 

Boiler water content 

Full appliance weight 

* With natural gas 

Unit of measurement 

kW 

kW 

kW 

kW 

% 

% 

% 

% 

% 

% 

% 

% 

% 

% 

m3/h °C 

°C 

kg/h 

kg/h 

% 

% 

ppm 

ppm 

ppm 

ppm 

mg/kWh 

mg/kWh 

- 

°C 

°C 

bar 

kPa 

mm 

mm 

mm 

V / Hz 

A 

W 

W 

W 

IP 

litres 

Kg 


50,8 

10,4 

50,0 

10,0 

98,5 

96,0 

106,0 

106,5 

107,0 

107,0 

1,3 

0,02 

0,2 

0,47 

5,37 

38 

30 

81 

17 

9,3 

9,0 

120 

6 

39 

16 

38 

55 

5 

20 - 85 

90 

4,4 

52,9 

950 

600 

525 

230 / 50 

0,85 

180 

59 

115 

X5D 

3,7 

69 

VICTRIX 75 

74,6 

18,5 

72,6 

18,1 

97,3 

101,0 

104,5 

107,6 

107,0 

107,6 

2,3 

0,01 

0,4 

0,32 

7,90 

61 

48 

121 

31 

9,2 

8,9 

170 

7 

108 

54 

43 


5 

20 - 85 

90 

4,4 

65,5 

950 

600 

525 

230 / 50 

1,26 

270 

72 

168 

X5D 

4,0 

72 

17

18 

Flue systems 

Single installation 

VICTRIX 50 and VICTRIX 75 boilers are standard provided in B23 configuration (open chamber, fan assisted) but they can work also as sealed chamber fan assisted 

(C type) using the special kits supplied by Immergas. 

To correctly install the boiler, it is necessary to use the original Immergas “Green Series” flue systems; these components and accessories are specially designed for 

VICTRIX 50 and VICTRIX 75 to guarantee higher resistance to corrosion and fast and easy installation, thanks also to the push-fit assembly and special gasket 

seals. 

FLUE OUTLET KITS FOR OPEN CHAMBER FAN ASSISTED INSTALLATION (B23 TYPE) 

Description Code 

Horizontal kit Ø 80 (to discharge in the chimney) 3.015254 

Terminal horizontal outlet kit Ø 80 (to discharge horizontally) 3.015255 


4 extension pipes Ø 80 kit 0,5 m long 3.014642 

4 extension pipes Ø 80 kit 1 m long 3.012088 

1 extension pipe Ø 80 2 m long 3.016837 

4 x 90° bends Ø 80 kit 3.012091 

45° bend Ø 80 kit 3.012092

FLUE OUTLET KITS FOR SEALED CHAMBER FAN ASSISTED INSTALLATION (C TYPE) 



Vertical concentric kit Ø 80/125 3.015243 

Flashing Kit Ø 80/125 for flat roof 3.015249 

Extension pipe kit Ø 80/125 2 m long 3.015246 

87° bend kit Ø 80/125 3.015247 

2 x 45° bend kit Ø 80/125 3.015248 

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Cascade installation 

In case of cascade systems in B23 configuration (open chamber, fan assisted), it is necessary to use a special flue manifold with a non-return device (flue locks) 

supplied by Immergas, so that the combustion products of one working boiler do not interfere with the combustion circuit of the not working boilers. The flue manifold 

has an external diameter of 125 mm. 


Exhaust manifold kit with flue locks Ø 125 for 2 boilers 3.015240 

in cascade (including a condense draining siphon) 

Exhaust manifold kit with flue lock for the additional boiler 3.015241 

Extension pipe Ø 125 kit 0,5 m long for flue manifold 3.016370 

Extension pipe Ø 125 kit 1 m long for flue manifold 3.016371 

Extension pipe Ø 125 kit 2 m long for flue manifold 3.015250 

90° bend kit Ø 125 mm for flue manifold 3.016179 

2 x 45° bend kit Ø 125 mm for flue manifold 3.016180 

Adapter Ø 125 - 160 for flue manifold 3.016215

Main climatic regulation options 


Cascade and zones regulator 3.015244 

Wall box for cascade and zones regulator 3.015265 

Zone manager 3.015264 

Modulating room thermostat 3.015245 

Flow probe 3.015267 

Storage tank sensor 3.015268 

(for managing the storage tank as a zone) 

Electrical connection kit for cascade 3.015269 

and zones regulator 

(to be installed to an external electric panel) 


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Main hydraulic options 


Safety kit for single boiler 3.015222 

(it includes thermometer, thermometer holder, lock, thermostat 

with manual reset, connection tap for pressure gauge, 

manual reset pressostat, gas intercepting valve trap, 

expansion vessel connection) 

Three-way valve kit connection to the separate storage tank 3.015223 

(it includes the storage tank probe) 

Hydraulic manifold for single boiler 3.015224 

(it includes a mud-filter on the return pipe) 

Hydraulic manifold for 2 boilers in cascade 3.015225 

(including the intercepting valve and the non-return 

for each appliance) 

Hydraulic manifold for additional boiler in cascade 3.015226 

(including the intercepting valve and the non-return valve) 

Safety kit for boilers in cascade 3.015227 

(it includes thermometer, thermometer holder, lock thermostat 

with manual reset, connection tap for pressure gauge, 

manual reset pressostat, gas intercepting valve trop, 

expansion vessel connection)

Notes 

23

victrix 50 - RVR.ie

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