IDEAL EVO S 50 User manual

INSTALLATION AND
SERVICING
EVO S
50 70 95 115 135
When replacing any part on this appliance, use only spare parts that you can be assured conform to the safety and performance
specification that we require. Do not use reconditioned or copy parts that have not been clearly authorised by Ideal.
For the very latest copy of literature for specification and maintenance practices visit our website www.idealcommercialboilers.com
where you can download the relevant information in PDF format.
August 2018
UIN 00RNO0333-B (U0625869)

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EVO S - Installation and Servicing
CONTENTS
1. WARNINGS AND RECOMMENDATIONS...........................................................................5
1.1. Transport and storage ................................................................................................................................... 5
1.2. Symbols used in this document. ................................................................................................................... 5
1.3.Qualicationofpersonnelforinstalling,adjusting,usingand
maintaining the equipment ............................................................................................................................ 5
1.5. Water characteristics..................................................................................................................................... 6
1.4.Safetyinstructions......................................................................................................................................... 6
2. APPROVALS .........................................................................................................................9
2.1. Compliance with European Directives .......................................................................................................... 9
2.2. Regulatory installation conditions.................................................................................................................. 9
2.3. Gas category................................................................................................................................................. 9
2.4. Gas supply pressures ................................................................................................................................. 10
3. TECHNICAL SPECIFICATIONS ........................................................................................11
3.1. Dimensions ................................................................................................................................................. 11
3.2. Boiler components ...................................................................................................................................... 13
3.3. Combustion at 15°C and 1013 mbar........................................................................................................... 16
3.4.Conditionsofuse ........................................................................................................................................ 18
3.5. Electrical connection ................................................................................................................................... 18
4. INSTALLATION ...................................................................................................................19
4.1. Installing the boiler ...................................................................................................................................... 19
4.2.Removing/installingthefrontpanels ......................................................................................................... 20
4.3. Exhaust connection..................................................................................................................................... 20
4.4. Gas connection ........................................................................................................................................... 26
4.5.Gaschange(G20toG31,onlyEVOS50toS95)..................................................................................... 26
4.6. Hydraulic connection................................................................................................................................... 30
4.7. Electrical connection ................................................................................................................................... 32
5. FIRST USE...........................................................................................................................36
5.1.Checksbeforerstuse ............................................................................................................................... 36
5.2. First use ...................................................................................................................................................... 36
6. CHECKS AFTER COMMISSIONING.................................................................................37
6.1. Condensate removal ................................................................................................................................... 37
6.2. Gas supply .................................................................................................................................................. 37
7. MAINTENANCE OPERATIONS.........................................................................................38
7.1. Draining the boiler ....................................................................................................................................... 38
7.2. Annual checks............................................................................................................................................. 39
8. END-OF-LIFE CYCLE OF THE APPARATUS ..................................................................41

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9. HYDRAULIC DIAGRAMS AND CONFIGURATIONS ......................................................42
9.1. Selection diagrams...................................................................................................................................... 42
9.2. Symbols used in the diagrams .................................................................................................................... 43
9.3.Listofdiagrams........................................................................................................................................... 43
9.4.Speciccongurationswhenconnectingto0-10Voutputs(Ux) ............................................................... 104
10. SPARE PARTS LIST .........................................................................................................107
11. CUSTOMER PARAMETERS TABLE...............................................................................117
12. APPENDIX A......................................................................................................................134

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1. WARNINGS AND RECOMMENDATIONS
PLEASE READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
CARRYING OUT MAINTENANCEAND USING THE BOILER. IT CONTAINS
IMPORTANT SAFETY INFORMATION.
1.1. Transport and storage
The boiler:
- must be stored vertically in an environment where the temperature is
between-20°Cand+55°C,andwhererelativehumidity isbetween5%
and95%;
-mustnotbestacked,
- must beprotectedfromhumidity.
1.2. Symbols used in this document.
INFORMATION: This symbol draws attention to comments.
WARNING: Not following these instructions may lead to
damagewheninstallingortootherobjects.
DANGER: Not following these instructions may cause
injuriesandseriousmaterialdamage.
DANGER: Not following these instructions may cause
electrocution.
1.3. 
maintaining the equipment
Boiler installation, adjustment and maintenance operations must be
conducted by a qualied and approved professional in accordance with
prevailing local and national regulations. These operations may require work
tobecarriedoutwiththepowerturnedonandthecasingdoors(onthefront
oftheboiler)open.
Basic utilisation operations must be carried out with the casing doors closed.

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1.4. 
• Always switch the boiler o󰀨 and shut o󰀨 the general gas supply before
carrying out any work on the boiler.
• Afterperformingwork ontheboiler (maintenanceorbreakdown),check
thattherearenogasleaksfromtheinstallation.
DANGER:

• 
contacts or switches.
• 󰀨
• Air the premises.
• 
DANGER:

• 󰀨
• Air the premises.
• 
DANGER:
This boiler's earth bonding is ensured with connecting cables (green/

make sure you reconnect the cables concerned; it is IMPERATIVE to
reuse the original attachment screws.
1.5. Water characteristics
Thefollowingrulesapplyassoonastheboileriscommissionedandremain
validuntiltheproduct’send-of-life.
DANGER: 
1.5.1. Preparation of the water circuit before commissioning the boiler
Forallinstallationwork(neworrenovation),thewaternetworkpipesmustbe
meticulouslycleaned.Thepurposeofcleaningpriortocommissioningisto
removegermsandresidueswhicharethecauseofdeposits.
In new installations in particular, residue from grease, oxidised metal and
even copper micro deposits must be removed.
Inrenovatedinstallations,cleaningshouldfocusonremovingsludgeandthe
productsofcorrosionformedwhentheunitwaslastinoperation.
Therearetwotypesofmethodsforcleaningandremovingsludge:ahigh
intensity approach that takes a few hours and a slower, more gradual
approachthattakesseveralweeks.Thisrsttypeofcleaningmustbedone
beforeconnectingthenewboiler,andwiththesecondtype,altershouldbe
installedonthebackoftheboilertocapturelooseneddeposits.
Cleaning prior to commissioning helps to improve the equipment’s
performance, reduce energy consumption and ght against scaling and
corrosion.Thisoperationmustbedonebyaprofessional(watertreatment).

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1.5.2. Protecting the unit against scaling
Water naturally contains dissolved calcium ions and carbonates that cause
scaling (calcium carbonate) to form. To prevent excessive deposits, take
precautionswithregardtothewaterusedtolltheunit
Watermustbeaddedduringthelifeoftheboiler.Thenewwateraddsscaling
tothewater system.The amountofllwater andtheamount ofmake-up
wateraddedthroughouttheunit’slifecyclemustnotbemorethanthreetimes
thewatercapacityoftheheatingsystem.Also,thehardnessofthemake-up
water must be controlled. Make-up water: 
Addingalargeamountofuntreatedwateralways contributesasignicant
amountofscaling.Tomonitorthisandtodetectproblems,asystemwater
meter must be installed.
Failuretocomplywiththeseguidelines(suchthatthellwaterplusthemake-
upwaterismorethanthreetimesthewatercapacityoftheheatingsystem)
requiresafullcleaning(toremovesludgeandscaling)tobeperformed.
Additionalprecautionsarerequiredforoperation:
- Whentheunithasawatersoftener,theequipmentmustbeinspected
on a regular basis in order to ensure that it is not outputting chloride-
richwaterintothesystem.Theconcentrationofchloridesmustalways
remain below 50 mg/litre.
- To prevent the build-up of calcium deposits (such as on exchange
surfaces), the unit should be brought into service slowly, starting by
operatingatalowpowerwithhighprimarywaterow.
- When the tap water lacks the desired qualities (e.g. high level of
hardness),watertreatment is required.The llwatermustbe treated,
and whenever new water is added, the make-up water must also be
treated.
- Installationswithmultipleboilersrequirealloftheboilerstobestarted
simultaneously at minimal power. Doing this prevents the calcium in the
waterfromdepositingontheexchangesurfacesoftherstboiler.
- Whenworkingontheunit,avoiddrainingitcompletely;onlytherequired
partsofthesystemaretobedrained.
The rules listed above are designed to minimise scaling on the exchange
surfacesandthustoincreasethelifeoftheboilers.
To optimise the equipment’s operation, remove lime scale deposits. This
mustbedonebya specialisedcompany.Also,beforeputtingtheunit into
service,verifythattheheatingsystemisnotdamaged(e.g.leaks).Ifithas
excessivescaling,theunit’ssettingsforoperationandforwatertreatment
mustbeadjusted.
1.5.3. Protecting steel and stainless steel boilers against corrosion
Corrosion can a󰀨ect the iron components used in boilers and heating
systems, which is directly related to the presence of oxygen in the water
heater’swater.Dissolvedoxygenthatenterstheunitwhenitisbeinglled
forthersttimereactswiththeequipmentmaterialsandquicklydisappears.
Withoutrefreshingtheoxygenthroughsignicantcontributionsofwater,the
unit might not experience any damage whatsoever.
However,itisimportanttofollowthesizingrulesandinstallationguidelines
inordertopreventoxygenfromcontinuouslyowingintotheheatingwater.

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These rules include:
- Opt for an expansion vessel with a membrane rather than an open
expansion vessel that allows direct passage.
- Make sure pressure in the equipment is more than 1 bar when cold.
- Remove non-gas-tight components (permeable) and use gas-tight
equipment instead.
Iftheguidelinesabovearefollowed,theunit’ssystemwaterhastheproper
characteristics to last a long time: 8.2 < pH < 9.5 and concentration in
dissolved oxygen < 0.1 mg/litre.
Ifthereisachancethatoxygencouldentertheunit,youmusttakeadditional
precautions.Adding an oxygen scavenger (e.g. sodium sulphite) is highly
recommended.  We recommend you contact specialised companies for
watertreatmentissues,whichwillbeabletosuggest:
- theappropriatetreatmentbasedonthecharacteristicsoftheinstallation,
-amonitoringandperformancewarrantycontract.
Forunitsinwhichthewatercomesintocontactwithheterogeneousmaterials,
suchascopperoraluminium,appropriatetreatmentisrecommendedinorder
toensurethattheunitwilllast.Inmostcases,thisconsistsofaddingcorrosion
inhibitors(intheformofchemicalsolutions)totheunit.Itisrecommendedto
contact water treatment specialists.
1.5.4. Unit monitoring
Iftheaboverecommendationsarefollowed(newinstallationorrenovation),
itshouldbesu󰀩cientto:
- checktheamountofmake-upwater(llwatervolume+make-upwater
volume < 3 times the unit volume.
- checkthepHlevel(stableorslightlyincreasing).
- checktheTH(stableorslightlydecreasing).
We recommend these checks are carried out 2 to 3 times a year. Note that
monitoringthequantityofmake-upwateriscriticaltothelonglifeoftheunit.
Ifanyofthesethreeparametersdeviatesfromtheaboverecommendations,
refertoawatertreatmentspecialisttocorrecttheproblem.
1.5.5. Installation of the plate exchanger
If the recommendations above cannot be met, you can set up a plate
exchangertoseparatetheprimarysystemfromthesecondarysystem,which
protectstheboilerfromundesirablee󰀨ects.
1.5.6. Installation of a ltration system
A ltration system (lter, sediment well, etc.) on the back of the boiler is
recommendedinordertoremovesuspendedparticlesfromtheunit.

2. APPROVALS
2.1. Compliance with European Directives
- Low voltage (2014/35/UE)
Thisapplianceisnotintendedforusebypersons(includingchildren)
whose physical, sensory or mental abilities are reduced, or persons
without experience or knowledge, unless they have been able to
benet,throughsomeoneresponsiblefortheirsafety,fromsupervision
orpriorinstructionconcerningtheuseoftheappliance.
Children must be supervised to ensure they do not play with the
appliance.
- Electromagnetic compatibility (2014/30/UE)
- Gas appliances (2009/142/CE)
- Energy labelling (2010/30/EU):
Inapplicationofthedirectiveandaccordingtotherequirementsofthe
EUregulationNo.811/2013of18February2013,theinformationon
condensationboilerswith apoweroflessthanorequalto 70kWis
available in appendix A.
- Eco-design (2009/125/EC):
In application of the directive and according to the requirements of
the EU regulation No. 813/2013 of 02 August 2013, the technical
parametersofcondensationboilerswithapoweroflessthanorequal
to 400 kW are available in appendix A.
2.2. Regulatory installation conditions
Theappliancemustbeinstalledbyanapprovedprofessionalinaccordance
withregulationsandcurrentprofessionalpractices.
2.3. Gas category
Thisboilerhasbeenadjustedinthefactorytoworkwithgroup H natural
.
Seechapter4.4forhowtochangethegas,anduseaqualiedprofessional.
INFORMATION: 
EVO S Category
 II2H3P
 I2H
- WEEE (2012/19/UE)
Waste Electrical and Electronic Equipment. See chapter 8.
27.08.2018 9 / 136
EVO S - Installation and Servicing

2.4. Gas supply pressures
INFORMATION: The pressures given below should be measured at the input to the
gas valve.
H G20
natural gas
G31
propane
Nominal pressure (mbar) 20 37
Minimum pressure (mbar) 17 25
Maximum pressure (mbar) 25 45
10 / 136
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EVO S - Installation and Servicing
gure 1 - Dimensional characteristics
3. TECHNICAL SPECIFICATIONS
3.1. Dimensions
U0561520-#

12 / 136
00RNO0333-B(U0625869)
EVO S - Installation and Servicing
EVO S
50 70 95 115 135
A (mm) 541
B (mm) 477 574 692 800
C (mm) 890
D (mm) 408
E (mm) 66,5
F (mm) 12,3
G (mm) 103,5
H (mm) 85,5
I (mm) 86
J (mm) 133
L (mm) 190
M (mm) 95
N (mm) 241 242,5
O (mm) 143,5 120
P (mm) 86 111
Ø Q Heating return connection G 1"1/4
Ø R Gas supply G 1"
Ø S Heating outlet connection G 1"1/4
Ø T Safetyvalveconnection G1/2"(female)
Ø U Condensate evacuation (mm) 24
Ø V Air inlet (mm) 125 150
Ø W Fume duct (mm) 80 100
XValve angle 16°
Y (mm) 45

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EVO S - Installation and Servicing
3.2. Boiler components
gure 2 - Boiler components for EVO S 50 model
U0561578-#
1Gas valve
2Fan
3Ionisation electrode
4Ignition electrode
5Ignitiontransformer
6Fume temperature sensor
7Bleed valve
8Water return temperature sensor
9Flowmeter
10 Water outlet temperature sensor
11 Pressure sensor
12 Anti-returnap
13 Condensatesiphon(suppliedunmounted)
14 Userinterfacecontrolpanel
15 NAVISTEM B3000 unit
16 Air pressure switch
17 Safetythermostat
4
5
16
1
8
76
3
17
15
14
13
12
11
9
10
2
view without
NAVISTEM B3000

14 / 136
00RNO0333-B(U0625869)
EVO S - Installation and Servicing
1Gas valve
2Fan
3Ionisation electrode
4Ignition electrode
5Ignitiontransformer
6Fume temperature sensor
7Bleed valve
8Water return temperature sensor
9Flowmeter
10 Water outlet temperature sensor
11 Pressure sensor
12 Anti-returnap
13 Condensatesiphon(suppliedunmounted)
14 Userinterfacecontrolpanel
15 NAVISTEM B3000 unit
16 Air pressure switch
17 Safetythermostat
18 CEMlter(EVOS115)
gure 3 - Boiler components for EVO S 70 to EVO S 115 models
U0561578-#
1
8
11
9
3
7
10
16
6
5
15
4
14
17
13
2
18
12
view without NAVISTEM B3000

27.08.2018 15 / 136
EVO S - Installation and Servicing
U0590800-#
17
8
11
9
3
7
10
16
6
5
15
4
14
13
2
18
12
1
1Gas valve
2Fan
3Ionisation electrode
4Ignition electrode
5Ignitiontransformer
6Fume temperature sensor
7Bleed valve
8Water return temperature sensor
9Flowmeter
10 Water outlet temperature sensor
11 Pressure sensor
12 Anti-returnap
13 Condensate siphon (supplied
unmounted)
14 Userinterfacecontrolpanel
15 NAVISTEM B3000 unit
16 Air pressure switch
17 Safetythermostat
18 CEMlter
view without NAVISTEM B3000
gure 4 - Boiler components for EVO S 135 model

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EVO S - Installation and Servicing
3.3. Combustion at 15°C and 1013 mbar
3.3.1. G20 natural gas
Nominal power Pn (80/60°C) kW
Nominal power when condensing P
(50/30°C) kW
Minimal power Pn (80/60°C) kW
Nominal heat input Qn kW
Ignition heat input Qall kW
Minimum heat input Qmin kW
 m3/h
CO2value ranges %

Qn
Qall
Qmin
g/s

Qn
Qall
Qmin
g/s
Flue-gas temperature (80/60°C)
Qn
Qall
Qmin
°C
Flue-gas temperature (50/30°C)
Qn
Qall
Qmin
°C
 mm
Maximum allowable nozzle
pressure (B23P) (80/60°C)
Qn
Qall
Qmin
Pa
Maximum allowable nozzle
pressure (B23P) (50/30°C)
Qn
Qall
Qmin
Pa
 m3/h
NOx class
Flue-gas removal and air inlet type

EVO S
50 70 95 115 135
56,4 69,9 95,7 119,5 134,0
61,0 76,8 104,5 129,5 146,0
11,5 17,1 19,0 23,9 26,8
58,0 72,1 98,5 123,0 137,9
23,5 26,1 30,5 39,0 72,4
11,8 17,6,4 19,6 24,6 27,6
6,1 7,6 10,4 13,0 14,6
50 to 115 models:
135 model:
atQmin:8,7%<CO2<8,9%
atQmax:9,1%<CO2<9,3%
atQmin:8,5%<CO2<8,7%
atQmax:8,9%<CO2<9,1%
26,0
10,5
5,3
32,3
11,7
7,7
44,1
13,7
8,8
55,1
17,5
11,0
62,9
30,9
12,5
25,0
10,1
5,1
31,2
11,2
7,5
42,7
13,3
8,5
52,5
16,7
10,2
57,3
29,9
12,1
76
63
62
70
58
57
76
61
62
70
56
56
70
60
59
60
39
38
48
33
34
57
38
38
52
31
32
42
32
30
80 100 100 100 100
200
31
20
123
15
15
187
17
17
200
32
20
200
51
5
174
27
20
100
14
14
159
17
17
200
31
20
172
41
9
72,8 90,6 123,7 154,5 176,7
6
B23,B23P
C13,C33

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EVO S - Installation and Servicing
3.3.2. G31 Propane Gas (for relevant models)
Nominal power Pn (80/60°C) kW
Nominal power when condensing P (50/30°C) kW
Minimal power Pn (80/60°C) kW
Nominal heat input Qn kW
Ignition heat input Qall kW
Minimum heat input Qmin kW
 m3/h
CO2value ranges %

Qn
Qall
Qmin
g/s

Qn
Qall
Qmin
g/s
Flue-gas temperature (80/60°C)
Qn
Qall
Qmin
°C
Flue-gas temperature (50/30°C)
Qn
Qall
Qmin
°C
 mm
Maximum allowable nozzle pressure
(B23P) (80/60°C)
Qn
Qall
Qmin
Pa
Maximum allowable nozzle pressure
(B23P) (50/30°C)
Qn
Qall
Qmin
Pa
 m3/h
NOx class

EVO S
50 70 95
56,4 69,9 95,7
59,7 75,2 102,3
11,5 31,9 33,5
58,0 72,1 98,5
18,0 32,9 34,5
11,8 32,9 34,5
2,4 3,0 4,0
atQmin:9,9%<CO2<10,1%
atQmax:10,3%<CO2<10,5%
26,0
8,1
5,3
32,4
14,8
14,8
44,1
15,5
15,5
25,7
7,9
5,2
31,2
14,6
14,6
44,0
15,3
15,3
78
64
63
69
60
60
75
60
60
60
42
40
47
34
34
56
34
34
80 100 100
200
19
19
105
24
24
138
20
20
177
16
16
93
22
22
129
20
20
73,0 90,7 123,9
6
B23,B23P
C13,C33

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00RNO0333-B(U0625869)
EVO S - Installation and Servicing
MODELS
50 70 95 115 135
230VAC(+10%-15%),50Hz
138 96 160 206 263
192 135 274 348 403
3
DHW sensor: 10
Externalsensor:40in0.5mm²(120in1.5mm²)
Ambient thermostat: 200 in 1.5 mm²
Ambient sensor: 200 in 1.5 mm²
230VAC(+10%,-15%)
5 mA - 1A
3.4. 
3.5. Electrical connection
Electrical supply V
Electrical power consumption at Qn
(without accessories) W
Electrical power consumption at Qn (with
accessories) W
Electrical power consumption in standby
mode W
 m
Power terminal output
V
A
Maximum start setting temperature °C
 °C
Maximum service pressure hPa
(bar)
Minimum cold pressure hPa
(bar)
(to P/20) m3/h
(to P/25) m3/h
Water content l
Weight without water kg

max.) °C

Protection level
 m
EVO S
50 70 95 115 135
85
105
4000
(4)
1000
(1)
2,4 3,0 4,1 5,1 5,8
1,9 2,4 3,3 4,1 4,7
5 9 10,2 12,8 15,3
60 90 95 100 125
5 / 45
between5%and95%
IP24D
2000

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EVO S - Installation and Servicing
4. INSTALLATION
4.1. Installing the boiler
EVO S boilers must not be mounted on a wall
covered with an inammable material: plastic,
wood,etc.
The combustion air must be free of agents
containing chlorine, ammonia, uorine and
alkaline.Thesecompoundsarefoundinaerosols,
paints, cleaning products, washing powder,
detergents,glue,snow-clearingsalt,etc.
Dodrawintheairthatisevacuatedfromplaces
wheretheseproductsareused-swimmingpools,
laundries, hair dressing salons, cold rooms -
as one or more of these compounds could be
introduced into the combustion air.
Recommended distances relative to walls:
Su󰀩cientclearancesmustbeprovidedtopermit
easy maintenance operations on the boilers. The
minimum values (in mm) are indicated in the
diagram opposite and table below:
      

B23 / B23P C13 C33
S 50 S 70 to S 135 S 50 S 70 to
S 135 S 50 S 70 to S 135
ø80 ø125 ø110* ø125 ø160 ø80/125 ø100/150 ø80/125 ø100/150
H** (mm) 280 360 310 430 450 290 350 140 170
* ø
**TheminimumvalueofHcorrespondstothesparerequiredtoinstallthe
exhaustsystemaccessories.Ittakesaccountofthedimensionsofthe
87°angleofahorizontalduct,independentlyofthelengthandgradient
ofthelatter.
IMPORTANT:
The boiler must be positioned horizontally using a spirit level to
 󰀨          

IMPORTANT:             

gure 5 - Clearances
IMPORTANT: 

Hmin. 1780
min. 800
min.
250
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00RNO0333-B(U0625869)
EVO S - Installation and Servicing
4.2. 
Pullthebottomofthepanelforwardstorelease.
Pullthetopofthepanelforwardstorelease.
Remove the panel.
Do the opposite to install the panel.
gure 6 - Removing the trim doors
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
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4.3. Exhaust connection
Youmustcomplywiththeregulatorytextsandrulesoftheartthatapplyin
the country where the boiler will be installed.
The exhaust extraction ducts must be made in a material resistant to the
These materials
mustalsobecapableofsupportinguegastemperaturesupto120°C.

B and C combustion product evacuation ducts.
EVO S boilers are approved to be connected to:
• aB23orB23Pue
• a C13 or C33 suction pipe
IMPORTANT: The boiler must not be made to support the exhaust duct's weight.