Alarko HARMONY - D User guide

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USERS, INSTALLATION
AND SERVICING
INSTRUCTIONS
HARMONY – D

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Code No: A.1.2.8i Publishing Date:200114
Revision Date: 200114

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Thank you for choosing ALARKO brand.
This booklet covers room sealed model HARMONY-D natural gas/LPG
combination boilers in ALARKO-CARRIER boiler range.
In this booklet you will find the instructions for use in USE section and
instructions for installation and maintenance in INSTALLATION AND
MAINTENANCE section.
For long-term and safe use of the boiler, the user must read the USE
section of this booklet carefully before using the boiler. Other sections of
this booklet are not for the end-user.
People or organizations authorized to install, commission and service
this boiler must follow the instructions in INSTALLATION AND MAIN-
TENANCE section of this booklet to ensure the correct installation and
operation of the appliance.
For further information, please consult to the product introduction broc-
hure or authorized dealers and services.
Keep this booklet on hand to consult to whenever you may need.

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..
TABLE CONTENTS
USER INSTRUCTIONS 8
1. Introduction 8
DECLERATION OF CONFORMITY AND CERTIFICATION 9
TERMS AND CONDITIONS OF GUARANTEE AND SERVICE 9
Guarantee is not valid under below conditions. 9
1.1 Gas Safety 10
1.2 Course of Action in case of Gas Leakage 10
1.3 Contents of Packaging 12
2. Product Description 13
2.1 Technical Data 15
2.2 Dimensions 16
2.3 Internal Parts of the Boiler 17
2.4 Water Circuit 18
2.5 Control Panel 19
2.5.1 ON/OFF and Domestic Hot Water Control Knob 19
2.5.2. Central Heating Control Knob 20
2.5.3. Pressure Gauge (Manometer) 20
2.5.4. LCD Display 21
2.5.5. Reset Button 21
3. BOILER OPERATION 22
3.1 Start-Up / Pre-Checks 22
3.2 Water Filling 22
3.3 Domestic Hot Water Operation 23
3.4 Central Heating Operation 23
In Summer:
3.5 Turning the boiler OFF 24
3.6 Central Heating System Discharge 24
3.7. Topping-up the system with water 24
INSTALLATION AND SERVICING 24
4. INTRODUCTION 25
4.1 INSTALLATION RULES 25
4.1.1 GENERAL 25

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4.1.2 BOILER LOCATION 26
4.1.3 AIR SUPPLY 27
4.1.4 OPENING THE PACKAGE & TRANSPORT 28
4.1.5 MOUNTING THE BOILER 29
4.1.6 Water and Gas Connections to the Boiler: 29
4.2 FLUE SYSTEM AND INSTALLATION 30
4.2.1 Sitting the Flue Terminal 30
4.2.2 Parts of Harmony_D RSF Flue System 33
4.2.3 Standard Supply (concentric horizontal) 34
4.2.4 Additional Kits 34
4.2.5 Installing the Standard Supply 37
4.2.6 Installing the Flue System with Straight Extension Kit: 38
4.2.7 Installing Flue System with 90° Turning Kit 41
4.2.8 Installing Flue System with Elevation Kit 42
IMPORTANT NOTES ON FLUE SYSTEMS 44
4.3 COMPONENTS & SYSTEM 44
4.3.1 Filling the system 45
4.3.2 DOMESTIC HOT WATER 46
4.3.2.1 Showers, Bidets, Taps and Mixing Valves 48
4.3.2.2 Water Quality 48
4.3.2.3 Water Pressure 48
4.4 ELECTRICAL 49
4.4.1 ELECTRONIC BOARD WIRING DIAGRAM 51
4.5 CONVERSION TO DIFFERENT GASES 52
5. OPERATING PARAMETERS 53
5.1 Programming operating parameters 54
5.1.1 Parameter menu activation 54
5.1.2 Parameter selection mode 55
5.1.3 Parameter changing mode 55
5.1.4 PARAMETERS’ ADJUSTMENT 56
5.1.4.1 Parameters Menu Activation 56
5.1.4.2 Parameter Selection 57
  5.1.4.3ParameterModication    57

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5.2 OPERATING ERRORS 57
5.2.1 Some Typical Problems 58
5.3 PERIODIC MAINTENANCE 59
Automatic Control Devices 60
6. Use with LPG 61
7. COMMISSIONING 61
7.1 Pre Checks 61
7.2 Start up 62
7.3 Setting The Heat Input 63
7.4 Maximum and Minimum DHW/CH Input Adjustments
(mechanical maximum and minimum) 64
7.5 Final Operational Checks 65
7.6 Commissioning – Heating System 65
7.7 INSTRUCTIONS TO THE USER 66
8. SERVICING 66
Appendix A 70
FAULT FINDING 70
TABLES
Table 1 Technical Data 15
Table 2 Clearances for boiler installation 26
Table 3 Minimum clearances for cupboard installation. 27
Table 4 Minimum ventilation areas for cupboards 28
without sufficient clearance.
Table 5 Setting the Parameters 53
Table 6 Parameter Adjustment 55
Table 7 Fault Display 57

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FIGURES
Figure 1 Boiler Dimensions 16
Figure 2a-b Main Parts of the Boiler/ Front-Backside View 17
Figure 3 Water Circuit Diagram 18
Figure 4 Control Panel Appearance 19
Figure 5 DHW Knob 19
Figure 6 CH Knob 20
Figure 7 Manometer 20
Figure 8 LCD Display Screen 21
Figure 9 Hydraulic Group- Manual filling tab 24
Figure 10 Transport & Packaging 28
Figure 11 Mounting Schematic with essential dimensions. 29
Figure 12 Gas & Water Connections 30
Figure 13 Flue Terminal Dimensions 32
Figure 14 The Parts of the Flue Kit 33
Figure 15 Wall Connections 36
Figure 16 Extensions & Elbow 36
Figure 17 Standard Flue Kit Installation 37
Figure 18 Extension Flue Kit Installation 39
Figure 19 Shortening the Ducts 40
Figure 20. 90º Turning Kit Installation 41
Figure 21. Elevation Kit Installation 43
Figure 22 a) Additional Expansion Vessel, b)
Methods of Filling the System 45
Figure 23 Volumetric Flow Rate & Pressure Difference
Relation for the Circulation Pump 46
Figure 24 Main Board Diagram 51
Figure 25 Burner Pressure/ Heat Input Diagram 63
Figure 26 Gas Modulator 64
Figure 27 Burner Plates, Igniters and Flame Sensors 68

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Inthisbookletyouwillndusersandservicinginstructionsofyournew
Harmony – D digital screen combination boiler and some useful infor-
mation and technical data about it. Harmony combination boilers are
the results of development, production and marketing experience, which
have resulted in the current highly efcient and user-friendly models.
Thecompactsizeandpleasingappearanceenablethemtobettedin
a wide range of locations. Despite its compactness, all inner pipe-work
and components are designed to allow easy access for the service en-
gineer.
The appliance is suitable for sealed systems only.
Our authorized seller and services will give you the enough information
about use and maintenance after setting up the boiler. You can ask any
further question to them. Our experts will be glad to answer your ques-
tions.
Inordertousetheboilerinsafe,highefciencyandeconomicwayfor
a long life period; please read these instructions carefully and obey the
safety rules and warnings.
In addition to the users instructions in this booklet, there are also techni-
cal data and introductory information about the boiler.
Read the instructions and other labels carefully, before starting the
boiler.
Take into consideration all the warnings.
Do not handle the parts of the boiler in a different way than speci-
ed in the instructions.
USER INSTRUCTIONS
1. Introduction

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DECLERATION OF CONFORMITY AND CERTIFICATION
Alarko Carrier manufacture boilers referred to in this booklet are pro-
duced in conformity with below: EC Directives and can hold the CE mark.
2009/142/EC Gas Appliances Directive
92/42/EECEfciencyDirective
2004/108/EC Electromagnetic Compatibility Directive
2006/95/EC Low Voltage Directive
TheappliancesarecertiedtocomplywiththerequirementsofEN297,
EN 483 and EN 625 using the gas categories listed below:
2H and 2E; G20 gas with a governed gas supply at 20 mbar inlet pres-
sure
3 B/P; any mixture of G30 and G31 gases with a governed gas supply
at 29-mbar-inlet pressure 3+; G30 / G31gases with non-governed gas
supplies at 29 / 37 mbar inlet pressures, respectively.
TERMS AND CONDITIONS OF GUARANTEE AND SERVICE
Your boiler is guaranteed for material defects and mechanical failure as
written on the Guarantee Form.
The guarantee is only valid if the appliance is installed in accordance
with this manual.
Guarantee is not valid under below conditions.
• Installationbyunauthorizedpersons.
• Hazardsduetoservicebyunauthorizedpersons.
• Hazardsduetonaturaldisaster.
• Hazardsduetobadweatherconditions,especiallyfrost,unlessin-
structions in this booklet are obeyed.
• Damagedorchangedserialnumberofboiler.
• Incorrectinstallation,useandmaintenancewithrespecttothein-
structions and the regulations in force.
• Boilersproducedfordisplayandexhibitionpurposes.

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• AbsenceofGuaranteeForm.
• Thetransportationrisksbelongtothecustomerifboilerissentto
service by customer and belongs to the service if boiler is taken
by service.
1.1 Gas Safety
It is the law that all gas appliances must be installed by a competent
person in accordance with the current rules and regulations in force
in the country of destination. With the same scope, any gas conver-
sion process carried out on the boiler must be done by a competent
person as well.
TheseappliancesarecertiedtocomplywiththerequirementsofEN
483 and EN 625 using gas categories 2H, 2E, 3B/P, 3+, 3B and 3P
with prescribed gas inlet pressures. No other gas use condition is al-
lowed for the boiler.
The particular gas type that the boiler is already adjusted to is written
on its data badge, unless it is converted to another gas by a compe-
tent person. Make sure that the boiler is not used with a different gas,
otherthanwhichitisadjustedfororitisnallyconvertedto.
1.2 Course of Action in case of Gas Leakage
If you smell gas or the gas alarm device signals;
• Becalm,
• Turnofftheappliance,
• Openallthedoorsandwindowstoventtheroom,
• Extinguishanyame,
• Closegasvalvesofanyapplianceandattheapartmentinlet,
• Donotlightanythinganddonotsmoke,
• Donotswitchonoroffandelectricaldevice,
• Donotattachorpulloutelectricplugs,donotringthebell,
• Donotusethetelephonewherethegassmellexists,
• Contactyourgassupplierandrebrigadeandexplainthesitua-
tion.

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Warnings!
This appliance must only be used for the intended purpose of manufac-
ture.
AlarkoCarrierSanayiveTicaretA.Ş.doesnottakeanyresponsibilityfor
the damage or injury on persons, animals or objects caused by incorrect
installation, service or maintenance, use except for the intended pur-
pose or disobeying any of the warnings within this booklet.
Spacesallowedforinstallingagas-redboileraredenedbyinterna-
tional and/or local regulations and rules of gas distribution companies.
You can supply detailed information about those limitations from your
installer. For your own safety, do not ask the installer to install your boiler
to prohibited spaces.
Before gas installation, a suitable gas installation project has to be pre-
pared and approved according to the requirements of local gas distri-
bution organization. After approval of local gas distribution organization
and precise application of installation, have your boiler commissioned by
an Authorized Service.
Commissioning is a free service.
Do not let unauthorized people to interfere or service the boiler.
Gas conversion process, if necessary, must be made by an authorized
service only.
Conversion is paid by the end-user.
Keep ammable and combustible objects, either liquid or solid, away
from the boiler.
Do not place cooker near the appliance and protect the boiler from direct
vapor.
Do not use any spray, chemical solvent, chlorinated cleaner, paint or
adhesive near the boiler.
The boiler is to be connected to an earthed 230 V 50 Hz electric supply.
To enable the frost protection function in winter when the weather tem-
perature might fall below 0°C, do not turn the boiler off.
Filter must be installed at the water inlet of the boiler to protect the pump
andtheltermustbecleanedperiodically.Thepumpshaftshouldbe

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rotated manually before starting the boiler after a long time of inactivity.
Apply the authorized service to take more information about this pro-
cess.
If you charge the central heating system with hard water, this may cause
blockage of the heat exchanger.
Mains supply water should not exceed 15° French hardness value. To
prevent any corrosion, pH value of the water should be between 8,2
-9,5,conductivityshouldbelessthan30μS/cm,andoxygencontent
should be less than 0,1 gr/m³.
Hot water circuit does not need a pressure relief valve. On the other
hand, pressure should not exceed 6 bars. In case of doubt, a pressure
regulatorshouldbetted.Consultyourinstalleronthisissue.
1.3 Contents of Packaging
The following items below are included in the package. Check if any item
is missing.
• Hangingbracket,connectionscrews(4pcs)andwallplugs(4pcs),
• Installation,operatingandmaintenanceInstructions
• WarrantyDocument,
• StandardFlueSystemissuppliedinaseparatepackage.
1.4 ECONOMY MEASURES
Your boiler is designed and manufactured to minimize the gas consump-
tion.
For further saving below are recommended:
• Yourboilerisadjustedto20.726kcal/hourofoutputcapacity.Down
rating of the heating capacity will save in houses where heating re-
quirement is less. Consult the authorized service for adjustment.
• Use of thermostatic radiator valves or ow balance of radiators
brings additional saving due to homogenous heat distribution over
the house.
• Settingthetemperaturecontrolknobsbetweenthepositions4and
6 reduces fuel consumption. On the other hand, they can be set to

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other positions due to various heating and hot water requirements
with no inconvenience.
• LowersettingofDHWtemperaturereducesfuelconsumption.
2. Product Description
Harmony-D is a room sealed mono-thermal exchanger combination
boiler with 24.1 kW nominal output to provide both central heating and
domestic hot water.
Despite the complexity of the system, all inner pipe work and compo-
nents are designed to allow easy access for the service engineer.
Ignition of the burner is provided automatically by the electronic ignition
system.
The latest design of main integrated electronic board controls all safety
and operational functions automatically.
A diagnostic section monitors boiler operation mode and indicates faults
to the user by a Carrier© blue LCD screen located on the fascia panel.
A degree of frost protection is built into the boiler controls. When the
boiler temperature falls under 6°C, the boiler starts to operate until a
temperature of 15°C is reached on CH side. Additionally, there is also an
antifreeze DHW protection function that operates under 5°C until 8°C is
reached. These control functions prevent the boiler from freezing.
When there is no heat demand during 24 hours, pump is activated by the
control board for 30 seconds to prevent the pump from getting jammed
due to inactivity.
User controls are on a modern, aesthetic, and functional control panel
on the boiler front. The controls allow the user to set the central heating
temperature to between 30°C and 80°C and the DHW temperature to
between 35°C and 60°C.
Boiler has got those features:
• Continuousfullmodulationforbothdomestichotwaterandcentral
heating,
• Three ignition attempts, (one ignition attempt for operating with
LPG)

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• Hightemperaturelimitthermostatsafety,
• Temperature control with domestic hot water and central heating
sensors, sensor fault warnings,
• Flamedetection,
• Heatinganddomestichotwaterfrostprotection,
• Centralheatinganddomestichotwaterpumpoverrun,
• Energysavingcirculationpump,
• Pumpjammingprevention,
• Centralheatinglowandhighpressuresafety,
• Domestichotwaterlowpressuresafety,
• Automaticby-pass,
• Hermeticpipeblockingandfanmalfunctionsafety,
• Suitableforusewithunderoorheating.
The technical data is shown in Table 2.1.

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2.1 Technical Data
Table 1 Technical Data
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL
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2.1 Technical Data
Table 1 Technical Data
Product Model HRD
Flue System/Type Hermetic/C12 (x)
Gas Class II2H3B / P
Reference Gas G20
Maximum Heat Power (Net) kW 24.1
kcal/hour 20726
Efficiency at 100 % Load % 93.8
Maximum heat load (Net) kW 25.7
Minimum heat power kW 10.11
Minimum heat load (Net) kW 11.8
Maximum gas inlet pressure mbar 20
Burner pressure for maximum load mbar 11.5
Burner pressure for minimum load mbar 1.7
Injector Diameter mm 1.35-0.80
Ignition System Electronic
NOx Class 3
CENTRAL HEATING SYSTEM DATA
Pressure (max / min) bar 3.0/0.3
Expansion Tank Volume / Pressure lt./bar 6.0/0.2
Maximum Water Temperature °C 85
Temperature Range °C 30-80 or 30-50
Frost Protection Operation Temperature °C 6
DOMESTIC HOT WATER SYSTEM DATA
Temperature Range °C 35-60
Pressure (max / min) bar 6/0.2
DHW minimum flow rate lt./min. 2.2
DHW Flow Rate at a Temp. rise of 30°C lt./min. 12
PHYSICAL DATA
Flue Diameter mm. 100 (suction) / 60 (discharge)
Overall Dimensions
(Width, Height, Depth) mm. 400, 700.5, 340
Weight –Net / Gross (except flue set) kg. 30.6 / 33.5
Heating –Supply / Return Connections in. 3/4"
DHW –Input / Output Connections in. 1/2"
Gas Connection ( via Kit ) in. 3/4" (1/2")
Safety Valve Connection in. 1/2"
ELECTRICAL DATA
Electrical Connection V/Hz 230/50
Internal Fuse Rating A 4
Power Consumption W 110
Electrical safety class IP X3D
2.2 Dimensions

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2.2 Dimensions
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL
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Figure 1 Boiler Dimensions
2.3 Internal Parts of the Boiler

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2.3 Internal Parts of the Boiler
The main parts of the boiler and water circuit are shown in Figures 2a
and 2b (Front view, backside view) and Figure 3.
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL
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The main parts of the boiler and water circuit are shown in Figures 2a and 2b (Front view,
backside view) and Figure 3.
Figure 2a-b Main Parts of the Boiler/ Front-Backside View

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2.4 Water Circuit
HARMONY_D USERS INSTALLATION AND SERVICE MANUAL
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2.4 Water Circuit
Figure 3 Water Circuit Diagram

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2.5 Control Panel
The control panel is specially designed considering both easy setting of
the boiler with only two knobs and a reset button on it and an aesthetic
outside appearance with a surrounding blue LED lightening along the
panel border. This lightening feature is arranged to be ON by default,
whilethereisameintheboiler.Thispropertycanalsoberearranged
according to customers liking so that the LED light can be ON or OFF
continuously all the time.
Warning!:
If LCD light is ON, LED light will
be OFF. They do not give light si-
multaneously. During setting up of
the DHW or CH temperatures with
control panel knobs, LCD panel
will automatically starts emitting
light and LEDs will be OFF. LED Figure 4 Control Panel Appearance
light will start to give light again 5 seconds after setting of the control
panel with knobs, according to the relevant parameter input described
above.
Figure 5 DHW Knob
2.5.1 ON/OFF and Domestic Hot Water Control Knob
This feature allows the user to ON / OFF the boiler and set the desired
temperature for the domestic hot water. When the blue pin on DHW knob
indicates the gap under the temperature legend ‘1’, boiler is OFF and not
only the central heating mode but also the domestic hot water mode is
OFF position.
When the indicator knob posi-
tion passes over the legend ‘1’,
domestic hot water mode is ON.
From number 1 to 7 domestic hot
water temperature can be adjust-
ed. Turning clockwise increases
the set temperature.

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Figure 6 CH Knob
Figure 7 Manometer
2.5.2. Central Heating Control Knob
This feature allows user to set the desired temperature for the central
heating system water. When central heating knob indicates the region
under the legend ‘1’, central heating mode is ‘OFF’. When it passes
over the position of legend ‘1’, central heating turns to mode ‘ON’. (Note
that domestic hot water knob should not be in ‘OFF’ position to ‘ON’ the
central heating mode.) From number 1 to 7 central heating water tem-
2.5.3. Pressure Gauge (Manometer)
The pressure gauge on the control
fascia panel indicates the central
heating system pressure. The nor-
mal running pressure is around 1
bar (cold) indicated by the solid
green line.
perature can be adjusted. Turning
clockwise increases the set tem-
perature.
When the indicator knob position
passes over the legend ‘1’, domes-
tic hot water mode is ON. From
number 1 to 7 domestic hot wa-
ter temperature can be adjusted.
Turning clockwise increases the
set temperature.
1) Lowerredregion:Indicatesthatwaterpressureisnotsufcient.Boil-
er doesn’t work in that region. It should be pressurized (lled) via
water supply into the system.
2) Lower green region: When the boiler isn’t working, water pressure
should be in that region.
3) Upper green region: Indicates the maximum pressure level while the
boiler is working.
4) Upper red region: Indicates that water pressure is over the required
level. Water should be removed from the system until the manometer
shows the lower green region. If the manometer shows the upper
solid red line, 3-bar safety valve removes the water from the system
automatically.