Pre-set to run on Methane or LPG

Available heat outputs:

➲ Touch screen user interface

➲Ready for connection to an external probe (optional)

➲26-plate DHW heat exchanger

➲

Controls to manage three different types of solar thermal systems fitted as standard (solar probe is optional)

➲Boiler hydraulic replacement kit

24kW

CTFS

28kW

CTFS

32kW

CTFS

24kW

CTN

28kW

CTN

FORMENTERA CTFS FORMENTERA CTN CO

ND

ENSI

NG

BO

ILER

S

MONO-THERMAL

EN

• Mono-thermal heat exchanger

• 26-plate stainless steel DHW heat exchanger

• 3-speed pump with integrated air purging device

• Integrated hydraulic assembly including: three-way valve, automatic

by-pass, safety valve, pressure transducer, unloading tap, connection to

the expansion vessel

• Integrated safety and modulation electronic board

• Installation flexibility thanks to IPX5D electrical protection degree

• Multifunctional relay for connection to systems with zone valves or to

solar systems or to remote boiler shutdown alarms

• Virtual room temperature control with weather compensation via

external temperature probe (option)

• Management of high-and low-temperature heating zones via electric

board (option)

• Energy efficiency marking (92/42/EC) CTFS:★★★ CTN: ★★

THE PRICE INCLUDES: Standard hydraulic kit, paper template, flue gas discharge diaphragm, air-intake blanking tap kit.

ModelType of

gasCode Heat output kW

Efficiency at nominal heat output

Gross weight(kg)

FORMENTERA CTFS 24sealed chamber

METHANE CFNxx2CA2423.7 93.0 % 37.50

LPG CFNxx3CA24

FORMENTERA CTFS 28sealed chamber

METHANE CFNxx2CA2828.6 93.7 % 38.00

LPG CFNxx3CA28

FORMENTERA CTFS 32sealed chamber

METHANE CFNxx2CA3230.8 93.4 % 38.50

LPG CFNxx3CA32

FORMENTERA CTN 24open chamber

METHANE CFNxx2CC2423.1 90.6 % 36.00

LPG CFNxx3CC24

FORMENTERA CTN 28open chamber

METHANE CFNxx2CC2827.4 90.0 % 36.50

LPG CFNxx3CC28

FORMENTERA CTFS and CTN

G Gas inlet (½”)

M CH flow (¾”)

C DHW outlet (½”)

F Cold water inlet (½”)

R CH return (¾”)

top viewbottom view

750

420 315

76 60 62 67 82 73

12118

515

413

1

132

4792

210135147

ACCESSORIES

DIMENSIONS AND CONNECTION CENTRE DISTANCES

750

420 315

76 60 62 67 82 73

12118

515

413

1

132

4792

210135147

750

420 315

76 60 62 67 82 73

12118

515

413

1

132

4792

210135147

MC

FR

G

R

750

420 315

121

131

154

185

117

76 60 62 67 82 73

210 210

750

420 315

121

131

154

185

117

76 60 62 67 82 73

210 210M

C

F

GG

CTFS

CTN

Article Description Code

Air-intake/flue gas coaxial connection for type B22 installation 0ATTCOVE03

Pipes and taps cover 0COPETUB03

Remote control 0CREMOTO04

Fixing template (metal) 0DIMMECO11

Wall spacer kit 0DISTANZ00

Ø 100/60 mm, 1 metre type “A”coaxial kit for TFS models

0KITCONC00

Protection kit for outdoor installation, with anti-freeze kit, for condensing boilers for TFS models

0KITCOPE03

ProtProtection kit for outdoor installation, for condensing boilers

for TFS models0KITCOPE04

Article Description Code

Sludge remover 0KITDEFA00

Flow - return cold water 90° taps kit 0KITIDBA11

Solar connection kit (for combi boilers)

0KITSOLC07

Connection kit for complex solar systems 0KITSOLC08

Baxi/ Formentera replacement kit- Luna 3 System HT - Luna 3 Comfort HT - Luna

Platinum HT - Prime HT0KITSOST08

Beretta/ Formentera replacement kit- Esclusive Green - Mynute Green

- Mybute Sinthesi0KITSOST09

Immergas/ Formentera replacement kit

- Victrix 50 - Victrix Mini0KITSOST10

Vaillant/ Formentera replacement kit- Eco Block Exclusive - Eco block Plus

- Eco Block Pro0KITSOST11

Ariston/ Formentera replacement kit- Clas Premium - Genus Premium - Genus - Clas 0KITSOST12

Tahiti/ Formentera replacement kit 0KITSOST13

Biasi/Savio replacement kit - Inovia, Inovia Cond, Rinnova cond, Parva recupera /

Aludens, Evodens, Futura, Superevo due0KITSOST14

Electric zone kit with external probe 0KITZONE05

Standard split pipe kitfor TFS models 0SDOPPIA11

“Plus” split pipe kit (0.5 meter long pipes)

for TFS models0SDOPPIA12

External probe 0SONDAES01

Temperature probe for solar heating plants PSPTMILL00

Inhibitor for multi-metal systems (0.5 L bottle) 0PROTIMP00

Universal cleaner (0.5 L bottle) 0PROTIMP01

Liquid inhibitor for domestic multi-metal systems (10 L bottle) 0PROTIMP02

Neutral universal cleaner (10 L bottle) 0PROTIMP03

Liquid inhibitor for 3/4” filter 0PROTIMP04

Hydrocyclone and magnetic filter 0FILTIMP00

Gas and water tap kit 0KITRUBI04

WALL-HUNG GAS COMBI BOILER WITH INSTANT PRODUCTION OF DOMESTIC HOT WATER, OPEN COMBUSTION CHAMBER

The

man

ufac

ture

r res

erve

s th

e rig

ht to

car

ry o

ut th

e ne

cess

ary

chan

ges

with

out p

rior n

otic

e.U

ff. P

ubb.

Fon

dita

l CTC

03

C 61

2 - 0

1 N

ovem

bre

2016

(500

- 11

/201

6)

TECHNICAL SPECIFICATIONS CTFS 24 CTFS 28 CTFS 32 CTN 24 CTN 28

No. nozzles - 11.0 13.0 15.0 11.0 13.0

Nominal heat input kW 25.5 30.5 33.0 25.5 30.5

Reduced heat input kW 12.5 13.5 16.0 10.0 12.5

Nominal heat output kW 23.7 28.6 30.8 23.1 27.4

Reduced heat output kW 11.1 12.0 14.3 8.5 10.8

Useful efficiency at nominal heat input % 93.0 93.7 93.4 90.6 90.0

Useful efficiency at 30% % 90.2 90.6 91.0 89.4 87.9

Casing heat loss with burner on at nominal heat input % 1.05 0.76 1.37 1.88 2.83

Casing heat loss with burner off % 0.26 0.20 0.20 0.57 0.57

Chimney heat loss with burner on at nominal heat input % 5.97 5.54 5.23 7.52 7.17

Energy efficiency marking (92/42/EC) - ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

CH maximum working pressure bar 3.0 3.0 3.0 3.0 3.0

CH maximum working temperature °C 83 83 83 83 83

CH temperature range °C 35-78 35-78 35-78 35-78 35-78

Expansion vessel capacity l 7 7 7 7 7

Consumption at nominal heat output (CH) Methane m3/h 2.70 3.23 3.49 2.70 3.23

Consumption at nominal heat output (CH) Propane kg/h 1.98 2.37 2.56 1.98 2.37

Consumption at nominal heat output (CH) Butane kg/h 2.01 2.41 2.60 2.01 2.41

DHW maximum pressure bar 6.0 6.0 6.0 6.0 6.0

DHW minimum pressure bar 0.5 0.5 0.5 0.5 0.5

DHW nominal flow ∆T 30°C l/min 11.6 14.2 15.1 11.2 13.5

DHW minimum heat input l/min 3.0 3.0 3.0 3.0 3.0

DHW maximum working temperature °C 62 62 62 62 62

DHW temperature range °C 35-57 35-57 35-57 35-57 35-57

Air-flue ΔT at nominal heat input °C 95.0 101.0 105.0 86.0 96.0

Flue gas flow at nominal heat input g/s 15.44 17.29 17.80 20.73 21.70

CO2 at nominal heat input Methane % 6.1 7.0 7.4 4.9 5.5

CO2 at nominal heat input Propane % 6.7 7.7 8.4 5.6 6.5

CO2 at nominal heat input Butane % 7.0 8.0 8.7 5.8 6.5

Supply pressure Methane mbar 20 20 20 20 20

Supply pressure Propane mbar 37 37 37 37 37

Supply pressure Butane mbar 28-30 28-30 28-30 28-30 28-30

Power supply voltage/frequency V/Hz 230/50 230/50 230/50 230/50 230/50

Fuse on the power supply A 3.15 3.15 3.15 3.15 3.15

Power absorption W 125 134 134 86 86

Electric protection rating - IPX5D IPX5D IPX5D IPX5D IPX5D

Gas fitting - G ½ G ½ G ½ G ½ G ½

CH fittings - G ¾ G ¾ G ¾ G ¾ G ¾

DHW fittings - G ½ G ½ G ½ G ½ G ½

Coaxial air intake/flue gas duct diameter mm 100/60 100/60 100/60 - -

Split air intake/flue gas duct diameter mm 80+80 80+80 80+80 - -

Flue gas duct diameter mm - - - 130 130

LxHxD mm 420x750x315

Net weight kg 34.00 34.50 35.00 32.50 33.00

Gross weight kg 37.50 38.00 38.50 36.00 36.50

FONDITAL S.p.A.

25079 VOBARNO (Brescia) Italy

Via Cerreto, 40 - Tel. + 39 0365 878.31 www.fondital.com