Immergas VICTRIX ZEUS 20 User manual

Page
Victrix Zeus 20/27 Instructions
Instruction Booklet
Eco-friendly wall-hung condensing boilers
with stainless steel storage tank
For Technical assistance, spare parts or service call:
RVR Limited, Kenmare, Co Kerry Tel: [phone], Fax: [phone]
Doc Ref : ALT112/171207
Read these instructions completely before using or installing the
Victrix Zeus 20/2 gas boilers
LEAVE THESE INSTRUCTIONS WITH THE USER
VICTRIX ZEUS 20/27

Page 2
Victrix Zeus 20/27 Instructions
The Victrix Zeus 20/27 boilers are condensing wall hung, room sealed combination boilers incorporating a
54 litre unvented hot water storage cylinder This boiler has the highest efficiency possible for a gas boiler,
ie 4 stars (****) in conformity with European Directive 92/42 EEC
The boiler, providing both central heating and domestic hot water supply, is designed for use with a fully
pumped, sealed and pressurised heating system using Natural Gas or LPG The boiler is supplied for use
with one of these gas types and must be converted before it can be used on another gas A boiler equipped
for natural gas must not be used on LPG or vice versa
The boiler is supplied with a pump, diverter valve, automatic bypass, pressure relief valve, expansion vessel
and pressure gauge fully assembled and tested
As supplied, the boiler will automatically modulate to provide central heating outputs between 4 7 and
23 5kW ( 6 2 to 31 4kW for Victrix Zeus 27 model) The maximum output available for domestic hot water is
23 5 kW (31 4kW for Victrix Zeus 27 model) and provides hot water at temperatures of up to 60°C
I PORTANT
All gas appliances must be installed by a competent and qualified person, in accordance with relevant
clauses of applicable standards and recommendations These include but may not be limited to the the fol-
lowing:-
I S 813 Domestic Gas Installations
I S, 820 Non-Domestic Gas Installations
All relevant Building Regulations
Local Water Bye Laws
IEE Wiring Regulations
Health & Safety legislation
This appliance meets the requirements of IPX4D, ie degree of protection against moisture
Failure to install this appliance correctly could lead to prosecution It is in your own interest and that of
safety to ensure that the law is complied with Manufacturer's instructions must NOT be taken in anyway as
over-riding statutory obligations
Introduction
Boiler Operating Instructions
Using the Boiler
Before lighting, make sure that the system is full of water and that the manometer (9) indicates a pressure
of 1 - 1 2 bar
-Open the gas valve on the gas supply to the boiler
-Turn main switch (5) to Hot Water or Hot Water/Heating
N.B.: With the switch set to the central Heating temperature setting is not active, and the domestic
water temperature is controlled by selector (3) With the switch set to the central heating tempera-
ture is set using selector (2) while selector (3) is used for the domestic hot water Turn the selectors clock-
wise to raise the temperature, anticlockwise to lower it Boiler operation is now automatic
Gaudium Magnum System - When the Gaudium Magnum switch (6) is in the position, the flow rate
possible for domestic hot water is increased when the storage temperature is more than 50°C If the tem-
perature of the stored hot water drops below 41°C, the system is automatically disabled Please see page
14 for further information on operating the boiler

Page 3
Victrix Zeus 20/27 Instructions
PERFOR ANCE: Victrix 20 Victrix 27
Nominal Heat Input Kw 24 0 32 6
Min Heat Input Kw 5 0 6 6
Nominal Heat Output (useful) Kw 23 5 32
Min Heat Output Kw 4 7 6 3
GAS: G20 G30 G31 G20 G30 G31
Nozzle diameter mm 5 0 3 8 3 8 7 0 5 0 5 0
Supply Pressure Mbar 20 29 37 20 29 37
HEATING SYSTEM:
Max Operating Pres of Heating Unit bar 3 3
Max Operating Temp of Heating Unit ºC 90 90
Adjustable Heat Temp (range 1) ºC 25 - 85 25-85
Adjustable Heat Temp (range 2) °C 25 - 45 25-45
Total Volume of expansion vessel l 10 10
Expansion Vessel preloading bar 1 0 1 0
Generator Water Content l 60 60
Available head capacity 1000 l/h kPa 14 7 35 28
Working Heat Output d h w production Kw 23 5 32 0
DHW adjustable temperature ºC 30-60 30-60
Flow Limiting Device l/min 8 12
DHW circuit minimum pressure bar 0 3 0 3
DHW circuit max operating pressure bar 8 8
Continuous service supply capacity with∆30ºC l/min 11 2 15 2
Capacity with ∆T 30ºC (10 mins) l/min 19 3 23 3
Minimum pressure for flow limiting device
rated capacity
bar 1 0 1 0
Full boiler Weight kg 129 128
Empty boiler weight kg 75 74
ELECTRICAL:
Power Connection v/hz 230/50 230/50
Rated Power Input A 0 59 0 90
Installed Electrical Power W 128 205
Power absorbed by circulator W 83 110
Power absorbed by fan W 20 43
Appliance electrical system callout - IPX4D IPX4D
FLUE GASES: G20 G30 G31 G20 G30 G31
Rated power fume mass flow kg/h 39 33 33 51 46 53
Minimum power fume mass flow kg/h 8 7 9 11 10 11
CO2 at nominal output % 9 2 12 5 10 6 9 44 12 2 10 35
CO2 at minimum output % 9 0 11 9 9 7 8 9 11 5 10 0
CO at O% O2 at minimum output ppm 5 6 8 5 5 6
NOx at 0% of 02 at nominal output ppm 36 268 61 37 115 21
NOx at 0% of O2 at minimum output ppm 12 19 14 9 20 12
Temperature of fumes at rated output (50/30) ppm 43 47 45 53 65 54
Temperature of fumes at min output (50/30) ppm 38 46 44 44 45 43
Boiler Dimensions: inimum Clearances for servicing:
Height 900mm Top 200mm
Depth 450mm Bottom 150mm
Width 600mm Side 20mm
Gas Connection ½” Front 600mm
CH Connection ¾”
DHW Connection ½”

Page 4
Victrix Zeus 20/27 Instructions
ain Boiler Components
Gas System
Return
System
Flow
DHW
Outlet
1 Intake sockets (A= air)
(F=fumes)
13 System filling cock 25 3-bar safety valve
2 Combustion chamber cover 14 Expansion vessel 26 8-bar safety valve
3 Ignition electrodes 15 Combustion chamber 27 Gaudium Magnum device
4 Detection electrode 16 SS storage tank 316L 28 Boiler emptying cock
5 Heating and limit NTC probe 17 Condensation module 29 Flue hood
6 Venturi duct 18 Fan 30 +ve signal pressure point
7 Air inlet pipe 19 Ignition & detection unit 31 -ve signal pressure point
8 Overheat safety thermostat 20 Max flow limit thermostat 32 Burner
9 Automatic air vent 21 DHW NTC probe 33 Gas valve outlet pres test
10 Circulator 22 Voltage transformer 34 DHW expansion vessel
11 Motorised 3 way valve 23 Water trap (siphon) 35 System emptying cock
12 Gas Valve 24 No water safety flow switch 36 System adjustable bypass
Cold
DHW
Inlet

Page 5
Victrix Zeus 20/27 Instructions
Gas Supply
The meter and supply pipes must be sized to deliver the gas rate and pressure given on page 3 The
boiler requires at least a 22 mm (3/4”) gas supply pipe The complete installation, including the meter, must
be tested for gas soundness and purged as described in IS 813:2002
Electrical Installation
The boiler requires a 220/240 V ~ 50
Hz mains supply, fused at 3 A The
boiler must be earthed. The polar-
ity of the supply must be correct as
otherwise the boiler will not operate
properly
There must only be one common iso-
lator, providing complete electrical
isolation, for the boiler and any
external controls Using PVC
insulated cable not less than 0 75
mm² (24 x 0 2 mm) to BS 6500
Table 16, the boiler should be
connected to a fused three pin plug
and unswitched shuttered socket out-
let (both complying with BS 1363), or
a fused double pole
switch with a contact separation of
at least 3 mm in both poles
Wiring external to the boiler must
be in accordance with the current IEE
Wiring Regulations
Note: External controls connected to the boiler must be of the volt free type and are connected to
terminals 40 and 41 as shown above.
Weather Compensation
A temperature sensor for outdoors is available as an optional accessory for the boiler This should be fitted
in an outdoor location which is not exposed to direct sunlight A north facing wall is a good location
If the optional weather compensation sensor is used, it should be connected to terminals 38 and 39 as
shown above using a two core cable If this cable is routed in close proximity to cables carrying mains volt-
ages, then screened cable should be used Contact RVR for more information
When the sensor is connected, the boiler adapts it’s flow temperature to suit the prevailing weather condi-
tions This results in lower energy usage and enhanced comfort
WARNING ! - Connection of a voltage to any boiler terminals other than the mains
lead will result in destruction of the boiler control panel. The product warranty
does not cover this type of damage.
Clearances and Air Supply
The boiler does not require any air vents for cooling in the room in which it is installed or when installed in a
cupboard or compartment The minimum clearances for servicing must always be maintained Please see
table on page 3 Note: A cupboard or compartment used to enclose the boiler must be designed and con-
structed specifically for the purpose
General Installation Information
Optional Immergas
Remote controller
(CAR)
Replace link with volt free
contact from CH controls
Do not connect 220V!
External weather com-
pensation sensor

Page 6
Victrix Zeus 20/27 Instructions
Flue Systems
When the boiler is installed on an external wall, the standard horizontal concentric 60/100 flue kit will normally
be used to flue the boiler This is shown in the diagram
It is often necessary to install a longer flue system to cater for site conditions There are several different flue
system sizes available for the Victrix Zeus 20/27 boiler
Horizontal concentric kit 60 /100
Install the bend with flange (2) on the central hole of the boiler in-
serting the seal (1) with the round protrusions facing downwards in
contact with boiler flange and tighten using the screws supplied
with the kit
Fit the smooth male end of the 60/100 concentric terminal pipe (3)
until it reaches to the stop on the female end of the bend (2), mak-
ing sure the internal and external sealing rings are fitted; this will
ensure the connection is properly sealed Additional extensions
and bends may be installed if required using the same method
Ensure that all seals are fitted and that the outer and inner pipes
are installed so that all joints are perfectly sealed Ensure that the
terminal is installed the right way up
A lubricant may assist in overcoming the friction of the seals Oils
and conventional greases are not compatible with the EPDM seals
used and should never be used for this purpose Silicone sprays
are compatible with EPDM and may be used Please contact RVR
for more information
A supporting clamp should be installed every three meters The flue system should be slightly inclined so that
any condensate flows towards the boiler This avoids any drips from the external flue terminal
The maximum possible overall length after the first bend (2) is 12.9 straight and horizontal meters. See
the section on extended flue design for more information.
Vertical concentric kit 60 /100
Install the concentric flange (2) on the central hole of the boiler
inserting the seal (1) with the round protrusions facing down-
wards in contact with boiler flange and tighten using the screws
supplied with the kit
Fit the male end (smooth) of the adapter (3) in the female end of
the concentric flange (2) until it reaches the stop on the female
end of the flange, making sure the internal and external sealing
rings are fitted; this will ensure the connection is properly sealed
Additional extensions and bends may be installed if required us-
ing the same method
Installing the flashing- Replace tiles with the aluminium sheet (5),
shaping it to ensure that the rainwater runs off Position the fixed
half-shell (7) on the aluminium tile and insert the intake/exhaust
pipe (6) Fit the male end (6)(smooth) of the 60/100 concentric
terminal up to the stop on the female end of the adapter(3), mak-
ing sure that the ring (4) is already fitted; this will ensure hold and
joining of the elements making up the kit
Ensure that all seals are fitted and that the outer and inner pipes
are installed so that all joints are perfectly sealed A lubricant may
assist in overcoming the friction of the seals Oils and conventional greases are not compatible with the EPDM
seals used and should never be used for this purpose Silicone sprays are compatible with EPDM and may be
used Please contact RVR for more information
A supporting clamp should be installed every three meters
The maximum possible overall length including the terminal is 13.4 straight and horizontal meters.
NB: If the terminal or extension pipes need shortening ensure that the inner pipe protrudes by 5mm with
respect to the external pipe.

Page 7
Victrix Zeus 20/27 Instructions
Separated 80/80 flue kit
This kit enables separation of the exhaust and air intake
pipes as shown in the figure
Combustion products are expelled from pipe (A) (in
plastic material resistant to acidic condensates) Air is
taken in through pipe (B) (also in plastic material) for
combustion
Intake pipe (B) can be installed either on the right or left
hand side of the central exhaust pipe (B) Both pipes
can be oriented in any direction
Ass mbly:
Install the flange (4) on the central hole of the boiler in-
serting the seal (1), positioning it with the round protru-
sions downwards in contact with the boiler flange and
tighten using the screws supplied with the kit
Remove the sealing plate from the air intake and re-
place it with flange (3)inserting seal (2) which is already
fitted on the boiler and tighten using the screws sup-
plied
Insert bends (5) with the male end (smooth) in the fe-
male end of the flanges (3&4) Fit the male end of the
intake terminal (6) up to the stop on the female end of
the bend (5), making sure that the relevant internal and
external sealing rings are fitted Fit the male of the ex-
haust pipe up to the stop on the female end of the bend,
making sure that the internal sealing ring is fitted; this
will ensure a seal and joining of the elements making up
the kit
Separated Flue Systems
A lubricant may assist in overcoming the friction of the seals Oils and conventional greases are not com-
patible with the EPDM seals used and should never be used for this purpose Silicone sprays are compati-
ble with EPDM and may be used Please contact RVR for more information
A supporting clamp should be installed every three meters The flue system should be slightly inclined so
that any condensate flows towards the boiler This avoids any drips from the external flue terminal
The maximum possible overall length without any bends is 36 straight, horizontal meters or 41
straight, vertical meters regardless of whether they are used in intake or exhaust. See the section
on extended flue design for more information.

Page 8
Victrix Zeus 20/27 Instructions
Each component of the air inlet/flue system has a resistance factor These are given in the following tables
The resistance factor varies depending on whether the component in question conveys fresh inlet air or hot
combustion gases All boilers have a maximum resistance factor of 100 The sum of all components in the
flue system must not exceed the maximum overall resistance factor of 100
Flue calculations for more complex systems

Page 9
Victrix Zeus 20/27 Instructions
Example:
Flue system consists of 9m of 80mm air intake pipe with 3 x 90˚ bends and 6m of exhaust pipe with 2 x 90˚
bends
Component Resistances:
Component Resistance Quantity Total
80mm Intake pipe 0 87 9 7 83
90˚ air intake bend 1 9 3 5 7
80mm Flue pipe 1 2 6 7 2
90˚ Flue bend 2 6 2 5 2
25 93
Total Flue Resistance
In this case the total resistance of the
system is less than 100 The flue de-
sign is acceptable

Page 10
Victrix Zeus 20/27 Instructions
Terminal Position in. Distance
A Directly below an opening, air brick, windows, etc
B Below gutters, soil pipes or drain pipes
C Below eaves
D Below balconies or car port roof
E From a vertical drain pipe of soil pipe
F From an internal or external corner
G Above ground, roof or balcony level
H From a surface facing the terminal
I From a terminal facing a terminal
J From an opening in the car port (door, window) into dwelling
K Vertically from a terminal on the same wall
L Horizontally from a terminal on the same wall
M Horizontally from an opening, air brick, window etc
Below horizontally hinged windows where exhaust is directed upwards
Below horizontally hinged windows where exhaust is not directed upwards
300 mm
75mm
75mm
75mm
75mm
75mm
300mm
600mm
1200mm
1200mm
1500mm
300mm
300mm
3000mm
1000mm
The flue terminal must be exposed to the external air and the position must allow the free passage of air
across it at all times In certain weather conditions the terminal may emit a plume of steam Avoid position-
ing the terminal where this may cause a nuisance If the terminal is fitted within 850 mm of a plastic or
painted gutter or 450 mm of painted eaves or 300 mm of a plastic car port roof, an aluminium shield at least
1 m long should be fitted to the underside of the gutter or painted surface If the terminal is fitted less than 2
m above a surface to which people have access, the terminal must be protected by a terminal guard
I PORTANT— Failure to install flue systems correctly may lead to serious injury or death. Ensure
that:
• Only flues specifically designed for condensing boilers and provided by RVR Energy Technology
Limited are used
• The flue slopes slightly towards the boiler by between 1 and 2 degrees to ensure any condensate
flows towards the boiler Failure to do this will result in condensate dripping from the flue terminal
• The flue is adequately supported along it’s length so that it is straight and cannot be moved without
using a tool
• The flue system has no low points where condensate can collect
• All flue terminals are securely fixed
• No chemicals, detergents, solvents or liquids of any kind are used in the assembly of the flue system
Talc may be used as a lubricant where necessary
• All joints and connections are properly assembled to prevent leakage and all seals are properly
seated
• The flue is thoroughly tested for leaks after installation