E.C.A. FELIS Series User manual

FELIS
WALL HUNG CONDENSING BOILER
FELIS FL 50/65/100/125/150 HM
INSTALLATION AND
USER MANUAL

•CONTENTS
• 1
• 1
• 1
• 2
I  2
I  2
I  2
I  3
I  3
I  3
•  4
I  4
I  5
I  6
I  9
I  
•11
•17
I 17
I 19
I 19
I





 20
26
31
32
•
•
•
• H 
• ERP PRODUCT FICHES
• EC DECLARATION OF CONFORMITY
38
31
41

Symbols below are placed within the manual to indicate important points about the usage and
working of the appliance. Meaning of these symbols are given below.
CAUTION: Indicates the possibility of pecuniary or
functional loss.
DANGER: Indicates the possibility of health and safety loss.
Indicates the information that should be considered by the user.
SERVICE: Indicates the situations that must not be interfered by the
user, the technical service should be contacted.
SYMBOLS
INTRODUCTION
WARRANTY AND SERVICE
First of all, we would like to thank you for choosing an E.C.A. boiler.
E.C.A. Felis condensing boilers are designed to accomodate the central heating needs in a safe and
comfortable way. Felis boilers must be installed to a central heating plumbing and sanitary water
system selected suitably for the boiler’s capacity and performance.
Information about installation and operation of Felis boilers are provided in this manual. Technical
specifications, choosing the right place to install, water, gas, flue and electrical connections,
maintenence information and a list of possible errors are given in detail. For utilizing your boiler’s
complete features and to use your appliance safely for a long time, please read the manual carefully.
Please keep all the documents that come with your appliance for future reference.
* This appliance conforms the related regulations about the limitation of hazardous materials in
electric and electronic devices.
* Does not contain polychlorinated biphenyl, asbestos or mercury.
• All repairs and annual maintenances must be done by qualified E.C.A. technical services. If the
instructions and warnings from the installation manual are followed, this boiler has 3 years of
warranty for the failures related to the manufacturing and materials.
• First time commissioning must be done by a qualified E.C.A. technical service. For the warranty to
be valid, warranty documents must be filled and stamped by the service during commissioning.
• This E.C.A. product does not require repairment under normal working conditions. But if you need
any assistance, our qualified services are at your service. For the warranty to be valid, all
maintenance and repairs must be done by qualified E.C.A. technical service personnel.
• E.C.A. qualified technical services list are provided seperately with your appliance.
• The default life time of boilers are 10 years according to the Ministry of Science, Industry and
Technology.
INFORMATION
1

- Shut off the gas valve of the appliance and all of your gas burning appliance
- Shut off and put out your oven, stove, cooker etc.
- Do not light matches, lighters etc, put out your cigarettes.
- Open all your windows and door and ventilate the room.
- Do not switch on your electrical devices and do not touch the plugs.
- Shut off the gas valves at the building entrances.
- Do not use phones in the environments that have a gas smell.
- Call the gas company and inform the closest technical service.
- Do not put or use flammable materials near your appliance.
- Keep materials like water, foam etc. away from electrical connections during cleanup, maintenance
etc.
- Do not block ventilation outlets in your boiler room.
Fittings
- Before the installation of your boiler, natural gas, central heating and (if applicable) domestic hot
water pipings must be ready. Natural gas pipings must be designed, approved and done by a
qualified engineering office. All these must be done and paid by the user.
-The appliance must be connected to a grounded plug with 230V AC, 50 Hz supply.
- Before the installation of your boiler, water circuit must be cleaned (power flushed) with suitable/
approved chemicals. To not damage the metal, plastic and rubber parts of the pipings and fittings,
use neutral based, non-acidic and non-alcalic cleaners. When using these chemicals, please follow
the instructions.
- Any dirt, blockages, welding residuals, burr, flug etc. particules left inside the pipes will affect the
boiler’s performance. These residuals will cause boiler to overheat, noisy operating etc. Any damage
or failure caused by unfit piping system is out of warranty coverage.
INFORMATION
If there is a natural gas smell;
SAFETY RULES
SAFETY RULES AND WARNINGS
2
Cascading Applicaons
While E.C.A. Felis boilers can be used as a single boiler, it can be used as a part of a cascading
system. Cascading system allows up to 16 boilers to work in coordination to reach capacities up
to 2400 kW.
Appliances in a cascading system are separated into two categories as master appliance and slave
appliances. All sensory information required for the heating system to perform is acquired and
processed by the master appliance and the resulting heat request information are sent to slave
appliances.
We strongly suggest that two ball valves should be installed to
the flow and return lines on the boiler water connection or
seperating the boiler from circuit when necessary.
This boiler is sold without the supplementary parts below due to the nature of the device. Capacity
and technical specifications of these parts will vary by the size of the heating system. All supplemen-
tary parts must be selected and fitted by a qualified plumber.
- Expansion vessel
- Pressure relief valve
- Circulation pump
- Water inlet valve
- Sludge catcher
- Air purger
- Hydraulic seperator

INFORMATION
The appliance should not be used above 2000m altitude above sea level.
Installaon
INFORMATION
Commissioning
Operaon and Maintenance
3
- Please be wary of the warnings in the installation and user manual. That way, any danger caused
by false operation could be prevented.
- For the longevity and high performance of your appliance, maintenance once a year is advised.
Maintenance is under the scope of appliance’s warranty and must be done by the authorized
E.C.A. technical services.
-Outer surfaces of the appliance must be cleaned with a damp cloth without using any chemical
substances. Usage of chemicals like detergents etc. could cause rust and scratches.
Do not install the appliance where it will be affected by direct sunlight. Sun
beams can cause discoloration on the outer surfaces of the appliance.
- Installation of this boiler must be done by a authorized technical service according to the
informa-tion (placement, flue connections etc.) presented on related standards and authorized gas
companies. After the installation, installer must make sure that user has been given the user
manual and give all the necessary information about the boiler and related safety equipments.
- Boiler must be installed in a manner that the appliance should not be in direct contact with water
vapor, detergent vapor or similar chemicals.
- Flue connections must not be tampered with without consulting to the authorized technical
service.
- Siphon included in the appliance package must be mounted to the siphon lid underneath the
appliance.
- First startup of the appliance must be done by the authorized service. Natural gas usage must be
approved by the related gas company prior to the first startup.
- The gas type (natural gas), inlet gas pressure (mbar), maximum water pressure (bar) and
electrical nominal voltage (V) values on the information label must be checked with the local
conditions.
-To prevent the risk of flue gas leakage to the environment, condensing siphon must be filled with
water prior to flue connection.
- After the installation of the appliance, please ask your authorized service personnel to give
information about the operation and safety equipments of the appliance.
-Tightness rubbers (EPDM) on the flue connections must be lubricated prior to the installation.
Grease oil and machine oils shall not be used under any circumstance.
CAUTION: If the appliance will not be in use until winter season,
water inside the boiler should be drained to prevent freezing.
All data regarding the cascade installation can be seen from the control panel of the master
appliance, therefore slave appliances don’t need to have a separate control panel. LEDs on the
appliances indicate error states and burning statuses. If a single appliance falls into an error state,
error code and the appliance address can be seen from the control panel of the master appliance
and the error can be reset from the button on the aforementioned slave appliance.
To install this appliance in a cascading system, there are suitable cascade accessories available. In
cascade applications, required accessories are subject to change by the requirements of the
actual application. Please contact the manufacturer or your seller for more information.

PRODUCT
Product Features
E.C.A. Felis condensing boilers are designed to accomodate the central heating needs in a safe and
comfortable way. Felis boilers should be connected to a heating circuit that is suitable for the capacity
and power level of the boiler. Felis condensing boilers works with natural gas.
Innovative design that ensures ease of service and maintenance. The width and heigth dimensions
staying same through all capacities enables to use the installation space efficiently. Its curved panel
design has a elegant appearance. Screen panel cover provides protection from the environmental
hazards of the boiler room conditions.
Functions and the safety of the appliance is provided by the control mainboard. Mainboard controls
the gas valve, blower and circulation pump. Flame in the burner is always checked via ionization
electrode and can be observed by the LEDs and the screen symbols on the panel.
Control panel is designed ergonomically and easy to use. With a wide LCD screen, Felis condensing
boiler provides a control system that supports multiple languages with descrpitive menus. White
backlighted LCD screen shows information about working mode, CH and DHW set points, real time
temperatures, fault codes with descriptions and water pressure.
Safety measurements on the appliance assures both your safety and the safety of the appliance.
These safety measurements are as follows;
• Flame Loss Safety
• CH Circuit Overheating Safety (90 °C)
• Flue Gas Overheating Safety (95 °C)
• Boiler Overheating Safety (105 °C)
• High Water Pressure Safety (6 bar)
• Low Water Pressure Safety (0,8 bar)
• Low Voltage Safety (170 VAC)
• Frost Protection (Electrical supply to the boiler must be maintened in order to frost protection to
work)
• Automatic Air Purger
• Annual Maintenance Reminder
4
CAUTION: Any person who is not capable in physical, sensory or
emotional aspect (including children) shall not operate the appli-
ance without observation.
CAUTION: This appliance is not suitable for use by the people
who is not capable in physical, sensory or emotional aspects
without observation and information of the people responsible
for the appliance. Children should not tamper with the device.
Any unauthorized usage that does not fit the purpose of the
device could cause danger to the people and the environment.

Product Notaon
5
Technical Dimensions
Figure 1. Technical Dimensions
Felis 50, 65, 100, 125, 150 HM NG
E.C.A. Felis Wall Hung Condensing Boiler
Descripon
Notaon
FC
D
I
E
H
A
B
G
CH
Inlet
CH
Outlet
CH
Outlet
Gas
Connection
Gas
Connection
CH
Inlet
Siphon
Connection
Lid
Siphon
Connection
Lid
Dimensions A B C D E Ø F Ø G Ø H Ø I
Felis FL 50 HM DG 501 mm 835 mm 525 mm 145 mm 304 mm 80/125 mm 1 1/4" 1 1/4" 3/4"
Felis FL 65 HM DG 501 mm 835 mm 590 mm 145 mm 304 mm 80/125 mm 1 1/4" 1 1/4" 3/4"
Felis FL 100 HM DG 501 mm 835 mm 590 mm 145 mm 304 mm 100/150 mm 1 1/4" 1 1/4" 1"
Felis FL 125 HM DG 501 mm 835 mm 660 mm 145 mm 304 mm 100/150 mm 1 1/4" 1 1/4" 1"
Felis FL 150 HM DG 501 mm 835 mm 730 mm 145 mm 304 mm 100/150 mm 1 1/4" 1 1/4" 1"

Detailed Drawings and List of Components
Felis 50
No Description No Description
1 GAS VALVE 11 PRESSURE SENSOR
2 SAFETY LIMIT THERMOSTAT 12 SIPHON COVER
3 NTC TEMP. SENSOR (OUTLET) 13 CONDENSATION HOSE
4 IGNITION TRANSFORMER 14 BOILER OUTLET PIPE (HOT)
5 HEAT EXCHANGER 15 BOILER INLET PIPE (COLD)
6 AIR PURGER 16 HEAT EXCHANGER HANGING BRACKET
7 FLUE GAS SENSOR 17 MIXER
8 IGNITION AND IONIZATION ELECTRODE 18 NTC TEMP. SENSOR (INLET)
9 BACKFLOW PREVENTER 19 GAS INLET PIPE
10 BLOWER
6
Figure 2a. Felis 50 Detailed Drawings

7
Felis 65
Figure 2b. Felis 65 Detailed Drawings

8
Felis 100 / 125 / 150
Figure 2c. Felis 100 / 125 / 150 Detailed Drawings

Technical Specificaons Table
9
Product Type Unit FELIS FL 50 HM NG FELIS FL 65 HM NG FELIS FL 100 HM NG FELIS FL 125 HM NG FELIS FL 150 HM NG
Gas Category
Flue Types
Hermetic Type
Gas Inlet Pressure (G20) mbar
Electric Supply V AC-Hz
Electric Consumption Watt 75 117 143 228 306
Protection Class
Weight (Net) kg 42 53 66 74 89
Water Volume L 3 4,5 6,5 8 9,5
Dimensions (net) (HxWxD) mm 835x501x525 835x501x590 835x501x590 835x501x660 835x501x730
Dimensions (gross) (HxWxD) mm 1055x665x595 1055x665x650 1055x665x650 1055x665x720 1055x665x790
Qmax, Maximum Heating Load -
(@80/60⁰C) kW 47,05 68,05 96,70 120,71 140,77
Qmin, Minimum Heating Load -
(@60⁰C) kW 8,18 13,50 20,09 24,20 26,57
Pmin, Minimum Heating Power -
(@60⁰C) kW 7,84 13,03 19,4 22,54 25,75
Pmax, Maximum Heating Power -
(@80/60⁰C) kW 45,55 66,04 94,05 116,75 135,67
Pmin, Minimum Heating Power -
(@30⁰C) kW 9,09 14,89 22,34 26,29 29,82
Pmax, Maximum Heating Power -
(@50/30⁰C) kW 49,91 73,36 102,00 129,01 150,43
Efficiency - (60⁰C return) (max-min) %96,8% - 95,8% 93,4% - 97,1% 97,3% - 96,9% 96,6% - 96,6% 97,0% - 96,4%
Efficiency - (30⁰C return) (max-min) %104,8% - 108,0% 106,2% - 108,1% 105,7% - 108,0% 105,4% - 107,6% 105,5% - 107,7%
Seasonal Space Heating Energy
Efficiency Class
Seasonal Space Heating Energy
Efficiency (ɳs) 91,8 91,4 91,8 92 91,8
Rated Heat Output (Prated) kW 45,6 68,05 96,7 120,7 140,8
Sound Power Level dB(A) 53 53 53 51 51
Efficiency at Rated Output at High
Temperature Regime (ɳ4) %86,4 84,3 87,8 87,1 87,5
Efficiency 30% Output at Low
Temperature Regime (ɳ1) %97,2 97,5 97,4 97,1 97,2
Electrical Consumption at Full
Load (elmax) Watt 75 115 139 226 297
Electrical Consumption at Part
Load (elmin) Watt 16 22 33 35 27
Electrical Consumption at Standby
(Psb) Watt 4 4 4 3 4
Standby Heat Loss (Pstby) kW 0,411 0,939 1,564 0,644 1,6
Yearly NOx Emissions mg/kWh 37,82 28,13 26,4 42,91 34,06
Space Heating Annual Energy
Consumption kWh 39713 57390 83085 102765 118623
Space Heating Annual Energy
Consumption GJ 143 207 299 370 427
Natural Gas (@Min-Max
Capacity) mᶾ/h 0,882 - 5,120 1,464 - 7,384 2,179 - 10,506 2,513 - 13,100 2,878 - 15,148
NOx Class
Min. Water Pressure bar
Max. Water Pressure bar 3 4,5
Operation Range
(@Radiator Heating) ⁰C
Max. Limit Temperature ⁰C
CO @ max capacity (G20) ppm <140 <130 <209 <242 <264
CO @ min capacity (G20) ppm <15 <2 <12 <9 <12
CO₂ @ max capacity (G20) %9,69 ± 0,2 9,32 ± 0,2 9,38 ± 0,2 9,50 ± 0,2 9,83 ± 0,2
CO₂ @ min capacity (G20) %8,60 ± 0,2 8,54 ± 0,2 8,52 ± 0,2 8,75 ± 0,2 8,89 ± 0,2
Flue Gas Temperature ⁰C <82 <75,4 <75,6 <76,8 <74,4
Flue Gas Flow Rate (min-max) g/s 3,52 - 17,59 5,28 - 22,17 9,35 - 45,08 9,90 - 48,93 12,1 - 54
Flue Diameter ø mm
C13 (x) - Max. Flue Length (Horz.) m10 10 11 11 11
C33 (x) - Max. Flue Length (Vert.) m12 12 13 13 13
B23P - Max. Flue Length m11 11 12 12 12
0,8
30-85
85
80 / 125
Fully Hermetic
20
230 VAC-50 Hz
IPX4D
* Maximum flue lengths are given for straight connections. Each 90⁰ elbow equals to 1,5m, each 45⁰ elbow equals to 1m flue length.
Flues
100 / 150
6
Emission Values
General
Capacity-Efficiency
Gas Consumption
Central Heating
I2H, I2E
C13(x), C33(x), C43(x), C63(x), C93(x),B23P
ErP Information
A
6

Figure 3. Electronic Board Circuit Diagram
10
Electrical Board Circuit Diagram

11
The appliance is delivered in a 1055 x 665 mm cardboard box with 4 pieces of edge
styrofoams supporting the appliance.
CAUTION: Warnings on the packaging must be followed
during transportation and storage.
Packaging
Parts required for the installation of the product (Wall hanging bracket, 3 gaskets for water and gas
connection, 5 wall plugs for screws) is provided in the package.
INSTALLATION AND CONNECTIONS
This device is designed to heat water under atmospheric pressure. It must be connected to a heating
circuit suitable for its capacity and nominal output. Felis boilers are suitable with flue types C13(x),
C33(x), C43(x), C63(x) and C93(x), therefore its flue system is seperated from the ambient air. Even
though, in case of a gas leak the boiler room must be equipped with the required ventilation
equipment. Under hermetic working, coaxial flue is in contact with the fresh air, therefore there is
no need to leave space for flammable construction pieces. Appliance must work hermetically in
environments that the air is polluted with halogenic hydrocarbons (hair salon, printing press,
chemical cleaner shop etc.)
Figure 4. Product Packaging Concept

12
Figure 5. Required Spaces Around the Appliance
Selecng the Suitable Place for Installaon
Gas and water connections are placed at the bottom of appliance, while flue gas outlet and air inlet
are located on the top. Boiler is sold with the outlet pipes directed to the bottom side. Suitable
places for installation are defined by the local regulations and the authorized gas companies. In
addition to that requirements, for ease of service, maintenance and usage; spaces required around
the appliance is indicated in Figure 5.
E.C.A. Felis condensing boiler must be hung to a brick wall with the supplied hanging bracket.
For installation:
• Take measurement from the back side of the boiler to make sure that the holes are in line and
horizontal.
• Mark the hole places on the wall.
• Drill the holes and put in the wall plugs.
• Fix the hanging bracket to the wall using the provided screws.
• Hang the boiler to the hanging bracket.
It is important that the hanging parts should be fixed to the wall properly to endure the weight of
the appliance.
Hanging the Appliance to the Wall

13
DANGER: When making electrical connections, make sure
that there is no charge in the electrical line.
CONNECTIONS
Water Connecon Instrucons
Before the installation of your boiler, water circuit must be cleaned with suitable/approved chemi-
cals. To not damage the metal, plastic and rubber parts of the pipings and fittings, use neutral based,
non-acidic and non-alcalic cleaners. When using these chemicals, please follow the instructions. Any
dirt, blockages, welding residuals, burr, flug etc. particules left inside the pipes will affect the boiler’s
performance. These residuals will cause boiler to overheat, noisy operating etc. Any damage or
failure caused by unfit piping system is out of warranty coverage.
Condensate Water Connecon
Electrical Connecons
The condensate water formed during normal operation of E.C.A. Felis boiler should be discharged
according to the instructions. In gas burning condensing boilers condensate water is an acidid fluid
with a pH value between 4-5. Burning 1 m3 natural gas forms approx. 1,7 liters of condensate water.
There is a siphon mounted to the condensate water outlet to prevent the flue gas to leak into the
surrounding air. Galvanised and copper alloy parts should not be used in the pipes and connection
parts, all parts of condensate drain should be in plastic. If the drain hose would be connected to a
drain out of the building, isolating the hose might be necessary to prevent the hose to freeze. For a
good operation, all horizontal parts of the condensate drain should have a 2⁰-3⁰ downwards slope.
Supply cable of the appliance must be connected to a grounded plug that can supply the required
voltage (230V AC, 50 Hz). Mainboard failures due to voltage fluctations and unfit grounding is not
covered by warranty.
• Appliance must be connected to a grounded 230V AC, 50 Hz plug. If the supply cable is damaged,
it should be replaced by E.C.A. authorized services.
• A 2A double pole breaker with minimum 3mm contact clearance mut be used for electrical
connection of the boiler.
INFORMATION
INFORMATION
• Water used in the boiler circuit must have a pH value between 7,5 - 9,5.
If there are aluminum parts on the water circuit, pH value must be lower
than 8,5.
• Water used in the boiler circuit must have a hardness value between 5⁰f
- 15⁰f. If necessary, water in the circuit must be conditioned using
chemicals according to the water connections instructions above.

14
Figure 6. Distances for Flue Outlets
PLACEMENT Distance (cm) PLACEMENT Distance (cm)
A- Under a window G- Side of a horz. or vert. pipe
H- Dist. from an outer corne
I- Dist. from an inner corner
L- From floor or pavement
M- Vert. distance between
two flue outlets
N-Horz. distance between
two flue outlets
B- Under an air vent
C- Under rain shield
D- Under a balcony
E- Side of a window
F- Side of an air vent
60
60
30
30
40
60
60
60
100
180
150
100
Flue Connections
E.C.A. Felis boilers are designed to work with C-type flues to provide the air required for burning
from out of boiler room. During flue connections, tightness gaskets should be mounted correctly
to prevent flue gas leakage to the fresh air intake. Horizontal flue kit must be installed with a 3%
slope towards the appliance to keep the condansate water flowing. Different connection kits for
the air intake and flue outlet are provided seperately.
You can use the Felis condensing boiler as a B-type device with a flue adapter that you can
supply from your seller. If the appliance is used as a B-type device, the boiler room must be
equipped with proper ventilation ducts per required by the directives. Felis boiler shall not be
used as a B-type device in environments that the air is polluted with halogenic hydrocarbons
(hair salon, printing press, chemical cleaner shop etc.) That way the appliance can be protected
from the corrosive effects of the ambient air.

+-{d
+-{d
l\
Figure 7. Flue Types
15
+-
I
I
I
I

16
Room Thermostat (Optional)
A selection of compatible room thermostats can be used for heating control of the system.
Figure 8a
Figure 8c
E.C.A. On-Off Room Thermostat
Wireless: 7006907522
Wired: 7006907519
Figure 8d
Figure 8b
E.C.A. On-Off Room Thermostat
T6360
7006901312
AF18 Room Unit
7006721436
AF17 Digital Room Unit
7006721435

INFORMATION
17
Please inform the authorized service about the additional components
(storage tank, 3-way valve, pool heating etc.) in your installation, so required
parameter settings can be done. Please ask your authorized service for more
information about operating and the safety features of the appliance after
installation
Control Panel
First time operation of the appliance must be made by an authorized service. Before first time opera-
tion, required parameter changes must be made by the service according to the components used in
the heating application.
E.C.A. Felis condensing boiler gives extensive information to the user about the status of the
appliance and system with its wide LCD screen and multi-language support while allowing full
control on the appliance.
Figure 9. Felis Control Panel and Buttons
By pressing “Info” button, user can see values such as “Boiler temperature, Outside Temperature,
Room Temperature, Water Pressure, Authorized Service Telephone No” etc.
OPERATING
Figure 10. Felis Control Panel - Information
In particular instances, special status symbols appears on the upper left side of the screen.
Error messages
If this symbol appears, an error in the appliance has occured. Press the info button and read further information.
Maintenance or special operation
If this symbol appears, a maintenance alarm is delivered or the device has changed to special mode (Chimney sweep
mode, manual operation, controller setpoint mode etc). Press the info button and read further information.