Fondital FORMENTERA KC 24 Manual de usuario

INSTRUCTIONMANUAL

FAMILY: Wall-mounted

condensing boilers

GROUP: Instantaneous with

forced draught

MODELS: Formentera

Condensing

VERSIONS: For indoor

installation

CODE: AST 14 C 257/00

______________________________________________

1st edition, February 2013

ENGLISH

________________________________________________________________________________

2 AST 14 C 257/00

Contents

SECTION 01

TECHNICAL FEATURES

1.1 – Models

1.2 – Overall Dimensions

1.3 – Technical Data ___________________Page 04

SECTION 02

TOUCH-SCREEN CONTROL PANEL AND DIAGNOSTICS

2.1 – User Interface

2.2 – LCD

2.3 – Boiler Status and Error Codes ___________________Page 10

SECTION 03

PLUMBINGDIAGRAMS AND COMPONENTS

3.1 – Plumbing diagrams

3.2 – Plumbing assembly

3.3 – Primary condensing exchanger

3.4 – Pre-mix burner

3.5 – Fan unit and gas valve

3.6 – Flue gas venting and condensate drain system ___________________Page 17

SECTION 04

GAS SETTING AND PARAMETERS

4.1 – Gas valve setting

4.2 – Chimney-sweep function

4.3 – Gas conversion

4.4 – Parameters ___________________Page 33

SECTION 05

OPERATING LOGIC

5.1 – Main general characteristics ___________________Page 44

SECTION 06

ELECTRICAL SYSTEM

6.1 – Electronic board

6.2 – Outer terminal box electrical connections

6.3 – Wiring diagram ___________________Page 76

SECTION 07

VENT DUCTSAND PIPES

7.1 – 100/60 Co-axial air/vent ducts

7.2 – 125/80 Co-axial air/cent ducts

7.3 – 80/80 Split air/vent ducts

7.4 – Split vent ducts 60

___________________Page 79

TROUBLE-SHOOTING CHART

__________________Page 85

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3 AST 14 C 257/00

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4 AST 14 C 257/00

SECTION 1

TECHNICAL FEATURES

1.1 MODELS

FORMENTERA Condensing KC 24 - 28 – 32

FORMENTERA Condensing KR 24 - 28 - 32

KEY TO SYMBOLS:

K: condensing

C: combined

R : heating-only

MAIN FEATURES:

•FORMENTERA Condensing KC 24 – 28 - 32:

combined instantaneous condensing boiler for indoor installation, with DHW+heating, sealed

chamber, forced draught, mono-thermal with plate exchanger

•FORMENTERA Condensing KR 24 – 28 - 32:

•heating-only condensingboiler for indoor installation, sealedchamber,forced draught,mono-

thermal

1.2 OVERALL DIMENSIONS

Height H = 750 mm

Width L = 420 mm

Depth P = 315 mm

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5 AST 14 C 257/00

Front view Side view

View from below View from above

GGas inlet (1/2”)

MHeating systemflow (3/4”)

RCH return (3/4”)

AF Cold waterinlet (1/2”)

ACS Hot water outlet (1/2”)

M ACS G AF

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6 AST 14 C 257/00

INSTALLATION DIAGRAM

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7 AST 14 C 257/00

1.3 TECHNICAL DATA

General Features

KC-KR 24 KC-KR 28 KC-KR 32

Operating parameters

Category II2H3P

Burnernozzles no. 2

Minimum CHcircuitflowrate l/h 400 600

Maximumand minimumCHpressure ba

0.5

Maximumand minimumDHWcircuitpressure ba

0.5

DHW specificflowrateût30°C l/min 13.5 15.5 16.2

Double flowprobeinterventiontemperatureOFF °C 105

Double flowprobeinterventiontemperatureON °C 90

Fluegasthermostatintervention temperature °C 105

Standard heatingregulationrang

°C 20

Maximumstandard operatingtemperature °C 78+5

Reduced heatingregulationrange °C 20

Maximumreducedoperating temperature °C 45+2

DHW regulationrange °C 35

MaximumDHWoperatingtemperature °C 57+5

Nominal expansion ves

el capacity l 10

Maximumrecommended system capacity(**) l 200

Nominalratings

PowerSupply:Voltage/Frequency V – Hz 230-50

Mainssupplyfuse A 2

Electrical cabinetprotection IP X5D

Max.inputpower

121

Inputpoweronstandby

2.4

Overalldimensionsandconnections

Height mm 750

Width mm 420

Depth mm 315

Gasconnection

Flowand return connection - G ¾

Cold waterandDHW/tankheaterconnection - G ½

Netweight kg 30.5 32 38

Consumption

Natural gasconsumption (*) m

/h 2.51 2.80 3.22

Propane gasconsumption(*) kg/h 1.84 2.05 2.36

Operatingfeatures

Type ofignition

Electronic

Flamesurveillanc

Ionisation

Type ofdetection

No phase

neutral polarisation

DHW production

Instantaneou

(*) Value relatedto 15°C-1013mbar

(**) Maximum watertemperatureat83°Cwithvessel preloaded at1bar

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8 AST 14 C 257/00

Design data and stacksize KC-KR 24

Max. heat

output Min. output 30% load

Casing heatlosswithburnerof

%0.28

Casing heatlosswithburneron % 0.97 6.49

Fluesystem heatlosswithburneron % 2.62 2.09 -

Flue(natural gas)massflowrate g/

12.43 1.33

Fluegas/ airtemperatur

°C 61 33

Residual pressureavailable Pa 130 1.56 -

CO2(natural gas) content

%9.0 9.3

CO2(propane) content

% 10.0 10.0

Useful thermal output(60/80°C) % 96.7 91.4 -

Useful thermal output(30/50°C) % 105.1 104.9 106.5

Efficiencyrating(according to92/42/EC)

使使使使

Nox emissionclass

KC-KR 28

Max. heat

output Min. output 30% load

Casing heatlosswithburneroff % 0.25 -

Casing heatlosswithburneron % 1.40 5.70

Fluesystem heatlosswithburneron % 2.40 2.00

Flue(natural gas)massflowrate g/s 13.93 1.47 -

Fluegas/ airtemperatur

°C 60 45

Residual pressureavailable Pa 170 2.0

CO2(natural gas) contents % 9.0 9.3 -

CO2(propane) content

% 10.0 10.3

Useful thermal output(60/80°C) % 96.4 92.3

Useful thermal output(30/50°C) % 105.5 104.5 107.0

Efficiencyrating(according to92/42/EC) - 使使使使

Nox emissionclass

KC-KR 32

Max. heat

output Min. output 30% load

Casing heatlosswithburnerof

%0.22

Casing heatlosswithburneron % 0.99 5.06 -

Fluesystem heatlosswithburneron % 2.61 2.04

Flue(natural gas)massflow

ate g/

15.81 1.87

Fluegas/ airtemperature °C 60 40.5 -

Residual pressureavailable Pa 183 3.5

CO2(natural gas) content

%9.0 9.3

CO2(propane) content

% 10.0 10.0

Useful thermal output(60/80°C) % 96.8 92.9 -

Useful thermal output(30/50°C) % 106.2 104.8 108.3

Efficiencyrating(according to92/42/EC)

使使使使

Nox emissionclass - 5

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9 AST 14 C 257/00

Settings

KC-KR 24

Max heat

input MIN-MAX

heat output Gas mains

inlet pressure No. of

nozzles Diameter

nozzles MIN-MAX

CO2value

(

W) (

W) (mbar) (mm) (%) +/

0.1

G20

natural gas 23.7 2.7 – 22.9 (60-80°C)

3.2 – 24.9 (30-50°C)

3.0 – 27.4 (DHW))

20 2 3.7 9.3-9.0

G31

propane gas 23.7 37 2 3.0 10.0-10.0

KC-KR 28

Max heat

input MIN-MAX

heat output Gas mains

inlet pressure No. of

nozzles Diameter

nozzles MIN-MAX

CO2value

(

W) (

W) (mbar) (mm) (%)

G20

natural gas 26.4 3.0 – 25.4 (60-80°C)

3.58 – 27.9 (30-50°C)

3.0 – 29.2 (DHW))

20 2 4.0 9.3-9.0

G31

propane gas 26.4 37 2 3.3 10.3-10.0

KC-KR 32

Max heat

input MIN-MAX

heat output Gas mains

inletpressure No. of

nozzles

Diamete

nozzles

MIN-MAX

CO2value

(

W) (

W) (mbar) (mm) (%)

G20

natural gas 30.4 3.9 – 29.4 (60-80°C)

4.4 – 32.3 (30-50°C)

3.9 – 33.4 (DHW))

20 2 4.45 9.3-9.0

G31

propane gas 30.4 37

2 +

diaphragm

Ø 7.2 3.55 10.0-10.0

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10 AST 14 C 257/00

SECTION 2

TOUCH-SCREEN CONTROL PANEL AND DIAGNOSTICS

2.1 USER INTERFACE

1. LCD

The LCD shows the boiler status and operating details (see

below).

2. DHW temperature setting

This button is used to regulate (increase or decrease) the DHW

temperature, within a range of 35°C to 57°C.

3. Boiler resetting

Press thisbutton toresume boileroperationafterashutdown (onlywithresettable failures), orreturn to the

home page when selecting the parameters.

4. Request for information and parameter confirmation

Press thisbutton to scroll throughsome display-onlyparametersin sequence,andtoconfirm the settingsof

the modified parameters.

5. Boiler operating mode selection

Press thisbutton to set one of the following functions:

SUMMER : Boiler on DHW only.

WINTER : Boiler on both CH and DHW.

CENTRAL HEATING ONLY : Boiler on CH mode only.

STANDBY OFF: boiler in standby: CH and DHW functionsdisabled.

6. Heating water temperature regulation

Thisbuttonisused to regulatethewatertemperaturein the CH system from 20°C to 45°C (reduced range)

or 78°C(standard range).Withan external probe however,thefictitioustemperaturecanbe regulated (refer

to the temperature regulation section).

Important: Touch the button area to access the various

settings. This activates backlighting (keys + LCD) and

access to the various functions. To guide the user, only

active buttons are backlit.

One minute after the last button has been touched, the

interface is disabled and the light sw itches off.

N.B. Backlighting has three separate settings (parameter

P78): 0 = standard, 1 = LCD alw ays ON, 2 = LCD +

buttons alw ays ON (default P78=0):

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