COMPONENTS FOR BIOMASS SYSTEMS - Caleffi...heating system. 2) Residential devices: “residential...

COMPONENTS FOR BIOMASS SYSTEMS

2014

M

Flue gas

Thermal exchange

Comburent air

Primary andsecondary air

M

M

The CALEFFI BIOMASS® product series has been created specifically to be used in circuits ofsystems with wood solid fuel generators, operating at high temperature with water or glycolsolutions as thermal medium. The materials of the components and their performance takeaccount of the specific system needs in terms of efficiency and safety of the generators andsystems.

Biomass is “the biodegradable fraction of products, waste and residues from biologicalorigin from agriculture (including vegetal and animal substances), forestry and relatedindustries (including fisheries and aquaculture), as well as the biodegradable fraction ofindustrial and municipal waste”. Biomass can be in the form of a solid, liquid or gas.This line of Caleffi products has been specifically designed for wood solidbiomass (solid fuel).

Solid fuel generators can be classified in two macro-categories:1) Boilers: generators “for solid fuels, hand and automatically stoked”, to be installedin specific technical rooms. Heating takes place via a hydraulic connection to theheating system.

2) Residential devices: “residential solid fuels burning appliances with boiler, notexceeding a total nominal heat output of 35 kW”, installed directly inside the dwelling.Hand or automatically stoked. Heating takes place via air and water circulation, witha hydraulic connection to the heating system. Residential devices can be classifiedin three types:- Fireplace heating systems- Thermostoves- Thermocookers

The generators are further divided according to their fuel stoking system:Hand stoking, typically that of log-burning generators, requires an operator to putthe blocks of wood into the generator stoking compartment.

Automatic stoking refers to the last device conveying the fuel (for example pelletsor woodchips) from the storage tank to the combustion chamber.

Hand and automatically stoked boiler

Hand and automatically stoked residential device

BIOMASS

SOLID FUEL GENERATORS

2 ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

M

LOGS

PELLETS

WOODCHIPS

≤1 m ≤1 m

RIARMO

542

1 1/2 X 1 1/2

542

RIARMO

542

1 1/2 X 1 1/2

542

RIARMO

542

1 1/2 X 1 1/2

542

PPM

S

C

≤1 m

≤1 m

Termostato di blocco ariarmo manuale

Termostato di regolazione ariarmo automatico

Termostato di controllo

Pressostato di blocco ariarmo manuale

Dispositivo di protezionelivello minimo

Dispositivo di protezionepressione minima

Dispositivo arrestoaria comburente

Allarme acusticoe ottico

Termometro

Manometro

Rubinetto manometrocampione INAIL

Pozzetto di controlloINAIL

Valvola di sicurezza

Vaso di espansionechiuso

Valvola di scaricotermico

Valvola di scarico disicurezza termica

Valvola di scaricotermico con reintegroincorporato

TR T PPMP

CALDAIAA

COMBUSTIBILESOLIDO

PLM AC

GENERATOREA

COMBUSTIBILESOLIDO

ALTR T

GENERATOREA

COMBUSTIBILESOLIDO

P

In prossimità delgeneratore

All’accumulo(solo con caricamentomanuale e su richiesta

del costruttore.Volume minimo 300 litri)

TL T

DISPOSITIVODOMESTICO

TC TC

DISPOSITIVODOMESTICO

AL

ALTR

T

P

PPM

AC

PLM

TC

AL

S

C

REFERENCE STANDARDS

The standards classify systems according to the expansion system (open or closed vessel) and according to the system for stoking fuel intothe generator, by hand (logs) or automatic (pellets, woodchips etc.).

Here we give some significant examples of open and closed vessel systems made in accordance with applicable standards

3ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

PLMTR T P

SOLIDFUEL

BOILER

Near the generator To storage (only for hand stocked boilers

and on manufacturer’s request. Minimum volume 300 l )

≤1 m

S

C

TL T

RESIDENTIALDEVICE

TC

TR T PPMP

SOLIDFUEL

BOILER

Near the generator To storage (only for hand stocked boilers

and on manufacturer’s request. Minimum volume 300 l )

TP PPM TC

SOLIDFUEL

GENERATOR

Near the generator

RIARMO

542

1 1/2 X 1 1/2

542

≤1 m

PLM AC AL

SOLIDFUEL

GENERATOR

EN 303-5 (2012): Heating boilers for solid fuels, hand andautomatically stoked, nominal heat output of up to 500 kW. Open vessel.

EN 12828 (2012): Heating system in buildings - Design forwater-based heating systems. Closed vessel.

EN 303-5 (2012): Heating boilers for solid fuels, hand andautomatically stoked, nominal heat output of up to 500 kW. Closed vessel.

Black devices: mandatory according to standardsMagenta or “framed” devices: optional or as an alternativeaccording to standards

UNI 10412-2 (2009): Hot water heating systems - Safetyrequirements.Part 2: Requirements for systems with residential solid fuelsburning appliances with boiler, not exceeding a total nominalheat output of 35 kW.Automatically stoked. Closed vessel.

Collection R ISPESL (2009): Applicatory technicalspecifications of Title II of Italian Ministerial Decree DM 1.12.75in accordance with art. 26 of the decree. (P>35 kW for Italy).Hand and automatically stoked. Open vessel.

Generator Power rating Product standard System standard

Boiler Up to 500 kW EN 303-5 (2012) EN 12828 (2012) Europe

Boiler < 35 kW EN 12828 (2012) Italy

Boiler > 35 kW Collection R ISPESL (2009) Italy

Residential Up to 35 kWEN 13229 (2006)EN 13240 (2006)EN 12815 (2006)EN 14785 (2006)

EN 12828 (2012) EuropeUNI 10412-2 (2009) Italy

SAFETY DEVICES

Function

The temperature relief valvedischarges the system water onreaching the setting temperature.Equipped with positive action. Itcan be used with non-pulverizedsolid fuel generators with open orclosed vessel in accordance withcurrent regulations.

INAIL reference standardsAccording to the provisions ofCollection R Ed. 2009, concerning“central heating systems using hotwater with temperatures no greaterthan 110°C and a maximum nominalheat output greater than 35 kW”, theuse of the temperature relief valve iscontemplated in the followingcases:Open vessel systems- Systems with generators stokedwith non-pulverized solid fuel, inplace of the consumption water heater or emergency exchanger(chap. R.3.C., point 2.1, letter i2).

Closed vessel systems- Thermal systems with generators stoked with non-pulverized solidfuels up to a nominal heat output of 100 kW with partial cut-off inplace of the residual power dissipation device (chap. R.3.C., point 3.2).

Function

The temperature safety reliefvalve limits the watertemperature in solid fuelgenerators equipped with abuilt-in storage or emergencyexchanger (for immediatecooling).On reaching the settingtemperature, the valve opensthe flow of mains waterthrough the emergencyexchanger or built-in storageunit, so as to draw off theexcess heat and therebylower the temperature of thesystem water contained in theboiler jacket.

Reference standardsIts use is contemplated in the INAIL standards, Collection R - ed.2009, chapter R.3.C., point 2.1, letter i2; point 3.1, letter i; point 3.3.The valve complies with EN 14597, it can be combined with solidfuel generators with a heat output of less than 100 kW, according tothe system provisions of the standards EN 12828, UNI 10412-2 andEN 303-5.

SOLID FUELGENERATOR

RIARMO

542

1 1/2 X 1 1/2

542

SOLID FUELGENERATOR

4 ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

542 tech. broch. 01001

Temperature relief valve, with fail-safe action.Manual reset for burner switch off or alarm activation.Working pressure: 0,3 ≤ P ≤ 10 bar.Working temperature range: 5–100°C.Setting temperature 98°C and 99°C.Certified and calibrated to INAIL.Discharge rating:1 1/2” x 1 1/4” - 136 kW.1 1/2” x 1 1/2” - 419 kW.

Code

542870542880

1 1/2” M x 1 1/4” F1 1/2” M x 1 1/2” F

98°C99°C

Setting


Temperature safety relief valve,with double safety sensor, for solid fuel generators.Max. working pressure: 10 bar.

Working temperaturerange: 5–110°C. Setting temperature: 98°C (0/-4°C).

Discharge flow rate with Dp of 1 bar and T=110°C: 3000 l/hLength of capillary: 1300 mm.Certified to EN 14597 standard.

Code

543513 3/4” F 98°C

Setting

5ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

SAFETY DEVICES

Function

The draught regulating valve,installed on the boiler with thethermostatic element immersed inthe medium, automaticallyadjusts the flow rate of thecomburent air to provide a moreregular and completecombustion.


Draught regulating valve.Male threaded connection.Adjustment range: 30–90°C.Certified to EN 14597 standard.

Function

On reaching the settingtemperature, the temperature reliefvalve discharges the water of thesystem with a solid fuel generator.The device integrates in a singlegroup a temperature relief valvewith a positive safety remotesensor and a filling valve. Thedischarge of water enables limitingthe system water temperature,while the filling inlet enables thereplacement of the dischargedflow rate.

Reference standardsUsed when there is no emergencyexchanger and for heat outputs < 35 kW (Italy).

S

C

RESIDENTIALDEVICE


Temperature relief valve, with positiveaction, with automatic filling.For solid fuel generators.Max. working pressure: 6 bar.Max. working temperature: 110°C.Working temperature range: 5–110°C.Ambient temperature range: 1–50°C.Setting temperature: 100°C (0/-5°C).Discharge flow rate with Dp of 1 barand T=110°C: 1600 l/h.Length of capillary: 1300 mm.

Code

544400 1/2” F

Code

529150 3/4” M ISO 7/1

100°C

Setting

Function

The device integrates in a singlegroup a temperature relief valveand a filling valve that operatesimultaneously by means of asensor integrated in the valvebody. On reaching the setting value,the valve opens the dischargeoutlet to eliminate the excess heatand, at the same time, the fillinginlet to replace the discharged flowrate of the system water.

Reference standardsUsed when there is no emergencyexchanger and for heat outputs < 35 kW (Italy).

Cold waterinlet

To heatingsystem

From heatingsystem

Drain

Filling group

RESIDENTIALDEVICE

Alimentazioneelettrica

Centralina

3 5

9

8

6

7

1 2 4

544Temperature relief valve with automaticfilling for solid fuel generators, with knob for manual discharge Max. working pressure: 6 bar.Max. working temperature: 120°C.Setting temperature: 100°C (0/-5°C).Discharge flow rate with Dp of 1 barand T=110°C: 1800 l/h.

Code

544501 3/4” 100°C

Setting

6 ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

Flowby-pass

Syst

emre

turn

Retu

rnto

gen

erat

or

2

5

3

4

1

M

Flue gas andemission control

Zones of condensationforming:• Deposits and tar• Corrosion• Reduction in heat

exchanger efficiency• Flammability

Primary andsecondary air:• Combustion

efficiency Accumulationof ash and residues

SR

ANTI-CONDENSATION

SF

ANTI-CONDENSATION VALVE

Function

The anti-condensation valve, used in heating systems with a solidfuel generator, automatically regulates at the set value thetemperature of the water returning to the generator. Keeping the boiler at a high temperature prevents condensation ofthe water vapour contained in the flue gas.Condensation produces tarry deposits that, accumulating on themetal surfaces of the flue gas-system water exchanger, causecorrosion, reduce the thermal efficiency of the flue gas-systemwater exchanger and are a source of danger for the flue gaschimney as they are flammable.The anti-condensation valve gives the generator a longer life andensures greater efficiency.

Technical specifications

PerformanceMedium: water, glycol solutionsMaximum percentage of glycol: 50%Max. working pressure: 10 barWorking temperature range: 5–100°CSetting temperature (Tset): z45°C, 55°C, 60°C, 70°CSetting accuracy: ±2°CBy-pass complete closing temperature: Tmix= Tset + 10°C = Tr

Connections: 3/4” - 1” - 1 1/4” M with union

Installation in mixing mode (anti-condensation) Installation in diverter mode

Characteristic components

1) Thermostatic sensor2) Obturator3) Spring

4) Plug5) Valve body

Thermostat replacement to modify settingThe adjustment sensor can easily be removed for maintenance orto change the set, with no need to remove the valve body from thepiping.

InstallationThe valve can be fitted onboth sides of the generator inany position, vertical orhorizontal.Installation is recommendedon the return to thegenerator in mixing mode; itis also allowed on the flowfrom the generator in divertermode.

Tf

TrTmix

Tset

Tf

TrTmix

Tset

Tf

TrTmix

Tset

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

Tf

TrTmix

Tset

Tf

TrTmix

Tset

Tf

TrTmix

Tset

Tf

TrTmix

Tset

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

Tf

TrTmix

Tset


Anti-condensation valve with thermostatic control of the return temperature to solid fuel generators.Brass body.

Setting 45°C 55°C 60°C 70°C� 4 5 76

�Code completion

28005�

28026�*

28006�

28007�

Code

3/4”1”1”

1 1/4”

Connection

3,23,2912

Kv (m3/h)

20202532

DN

45°C 55°C 60°C 70°C45°C 55°C 60°C 70°C45°C 55°C 60°C 70°C45°C 55°C 60°C 70°C

Settings

Valve selectionThe valve selection should be made according to the Kv value(corresponding to a specific DN body size) and not only according tothe threaded connections. Given the system flow rate, thecorresponding head losses on the valve should be calculated by usingthe Kv value. The sum of the head losses on the valve and the headlosses of the rest of the system should be compatible with theavailable head of the generator pump.

* Caution: same Kv value of 3/4” valve.

M M

SOLID FUELGENER ATOR

M M


7ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

Tf

TrTmix

Tset

Tf

TrTmix

Tset

Tf

TrTmix

Tset

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

Tf

TrTmix

Tset

Tf

TrTmix

Tset

Tf

TrTmix

Tset

Tf

TrTmix

Tset

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

Tf

TrTmix

Tset

Tf

TrTmix

Tset

Tf

TrTmix

Tset

Tf

TrTmix

Tset

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

Tf

TrTmix

Tset

Tf

TrTmix

Tset

Tf

TrTmix

Tset

Tf

TrTmix

Tset

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLID FUELGENERATOR

Tf

TrTmix

Tset

ANTI-CONDENSATION VALVE

Operating principle

The thermostat, completely immersed in the medium, controls the movement of an obturator that regulates the flows in by-pass and toward thesystem. On starting up the generator, the anti-condensation valve recirculates the flow water so as to bring the generator up to temperature asquickly as possible (1). When the flow temperature Tf exceeds the set of the anti-condensation valve Tset, the valve’s cold port starts openingto produce the mixing Tmix: in this phase the system loading begins (2). When the generator return temperature Tmix is greater than the settingof the anti-condensation valve by approximately 10°C, the by-pass port gets closed and water returns to the generator at the same temperatureof the system return (3 and 4).

1

Tmix = Tset + 10°C BY-PASS CLOSINGby-pass closedsystem return open

Tf > Tmix = Tset +10°C, Tmix=Tr

Tmix > Tset + 10°C SYSTEM LOADEDby-pass closedsystem return open

Tf > Tmix > Tset +10°C, Tmix=Tr

Tf > Tset START OF SYSTEM LOADINGby-pass opensystem return open

Tf > Tset, Tr < Tset, Tmix=Tset

Application diagram

System with inertial storage

2

3 4

Tf ≤ Tset SYSTEM START UP TRANSIENTby-pass opensystem return closed

Tf ≤ Tset, Tmix=Tf

Tf = Flow temperatureTset = Anti-condensation set temperature

Tmix = Mixed water temperature of generator returnTr = System return temperature

Safety devices to choose according tocurrent regulations

Construction details

Compact constructionThe unit features all the functional components assembled in a kitand ready for installation.

Anti-condensation valveThis device incorporates a thermostatic sensor to control thetemperature of the water returning to the generator so as to preventcondensation. The sensor has been specifically realised to beremoved from the valve body for maintenance or replacement ifnecessary.

Check valveThis device prevents reverse circulation of the medium. The checkvalve is useful when the circulation unit is used on its own for adirect connection to the system or for the connection to a manifoldnot equipped with a hydraulic separator.

ANTI-CONDENSATION CIRCULATION UNIT

Systemreturn

Systemflow

Generatorreturn

Generatorflow

8 ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

Function

The anti-condensation circulation unit performs the function ofconnecting the solid fuel generator to the distribution manifold,controlling the return temperature to the generator, to avoidcondensation by means of the built-in thermostatic device. The unitalso enables connecting the generator to the inertial storage ordirectly to the user system.

Both centre distances, 90 and 125 mm, have been specificallydesigned for the connection to the separator/distribution manifold559 series, both for the external use and the recess mountingversions.


Performance

Medium: water, glycol solutionsMax. percentage of glycol: 50%Working temperature range: 5–100°CMax. working pressure: 10 bar Temperature gauge scale: 0–120°C

Connections: - system circuit: 1” F with union- generator circuit: 1” F- connection centre distance: 90 mm / 125 mm

Anti-condensation valveWorking temperature range: 5–100°CSetting temperature (Tset): 45°C, 55°C, 60°C, 70°CSetting accuracy: ±2°CBy-pass complete closing temperature: Tmix = Tset +10°C = Tr

PumpHigh-efficiency pump: models 25-60 ALPHA2 L and UPML 25-95

Technical specifications of insulationMaterial: closed cell expanded PE-XThickness: 20 mmDensity: internal part 30 kg/m3

external part 50 kg/m3

Thermal conductivity (DIN 52612): at 0°C 0,038 W/(m·K)at 40°C 0,045 W/(m·K)

Coefficient of resistance to the diffusion of water vapour (DIN 52615): > 1.300Temperature range: 0–100°CReaction to fire (DIN 4102): class B2


1) Anti-condensation valve2) High-efficiency pump3) Shut-off valves4) Check valve

5) Flow temperature gauge6) Return temperature gauge7) Insulation


Circulation unitwith anti-condensation valve,with thermostatic control of the return temperature to solid fuel generators.With insulation.

Setting 45°C 55°C 60°C 70°C� 4 5 76

� Code completion

Code Connection

Code Connection

Connectioncentredistance

Connectioncentredistance

Generator return on LH side

Generator return on RH sideSettings

Settings

28261�A2L28265�UPM28263�A2L28267�UPM

1” F1” F1” F1” F

190 mm190 mm125 mm125 mm


28260�A2L28264�UPM28262�A2L28266�UPM

1” F1” F1” F1” F

190 mm190 mm125 mm125 mm


9ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

ANTI-CONDENSATION CIRCULATION UNIT

Ser

ie 1

67S

erie

167

230

V23

0 V

˜̃ ±1

0%±1

0% 6

VA

6 V

AA

mb.

tem

p. ra

nge

-10÷

55°C

Am

b. te

mp.

rang

e -1

0÷55

°CO

peni

ng/c

losin

g tim

e 50

sO

peni

ng/c

losin

g tim

e 50

s90

° ro

tatio

n90

° ro

tatio

nIP

65

IP 6

5

Cod. 167012 Cod. 167012

AU

TOA

UTO

MA

NM

AN

Ope

nO

pen

BBO

pen

Ope

nAA

1313

SOLID FUEL GENERATOR

Application diagram

System with SEPCOLL, solid fuel generator combined with gasgenerator

In the event of multiple presence ofgenerators, apply the current regulations

Ser

ie 1

67S

erie

167

230

V23

0 V

˜̃ ±1

0%±1

0% 6

VA

6 V

AA

mb.

tem

p. ra

nge

-10÷

55°C

Am

b. te

mp.

rang

e -1

0÷55

°CO

peni

ng/c

losin

g tim

e 50

sO

peni

ng/c

losin

g tim

e 50

s90

° ro

tatio

n90

° ro

tatio

nIP

65

IP 6

5

Cod. 167012 Cod. 167012

AU

TOA

UTO

MA

NM

AN

Ope

nO

pen

BBO

pen

Ope

nAA

1313

Connection to the primary side of the 559 series SEPCOLLseparator/manifold.The solid fuel generator is used as a single energy source (primaryside) and is therefore connected upstream of the hydraulicseparation zone of the 559 series SEPCOLL unit.

Connection to inertial storage.The unit performs the function of connection and hydrauliccirculation between the solid fuel generator and the inertial storage,both in direct mode and with coil exchanger immersed in thestorage.

Direct connection to the system. The unit can be directly connected to the system, using the pumpas a circulator for the entire system.

Connection to manifold with storage in parallelThe unit connects the generator to the manifold for direct supply tothe secondary circuits or in parallel to the inertial storage.










code. 28261.A2Lcode. 28263.A2Lcode. 28265.UPMcode. 28267.UPM





Flowby-pass

Generatorreturn

Systemreturn

2

4

1

3

5

5

54

4 6

Function

The anti-condensation recirculation and distribution unit enables theconnection of the solid fuel generator to the user system (direct orwith inertial storage). It controls the return temperature to thegenerator to avoid condensation, by means of the built-inthermostatic sensor.

Technical Specifications

Performance

Medium: water, glycol solutionsMax. percentage of glycol: 50%Working temperature range: 5–100°CMax. working pressure: 10 barMaximum recommended flow rate: 2 m3/hTemperature gauge scale: 0–120°C

Connections: 1” F and 1 1/4” F with union

Anti-condensation valveWorking temperature range: 5–100°CSetting temperature (Tset): 45°C, 55°C, 60°C, 70°CSetting accuracy: ±2°CBy-pass complete closing temperature: Tmix = Tset +10°C = Tr

PumpThree-speed pump / high-efficiency pump:

RS 4-3 / YONOS PARA 25/6 RKC

Technical specifications of insulationMaterial: EPPMean thickness: 30 mmDensity: 45 kg/m3

Working temperature range: 5–100°CThermal conductivity: 0,037 W/(m·K) at 10°CReaction to fire (UL94): class HBF

Construction details

Single casting and reversibilityThe compact brass single casting, that houses the pump andfunctional components, enables immediate installation of thedevice, either on the right or left of the solid fuel generator,respecting the flow directions as shown. The temperature gaugescan be extracted from the housings and re-inserted in the sameposition on the back side of the unit.

Anti-condensation valveThis device incorporates a thermostatic sensor to control thetemperature of the water returning to the solid fuel generator so asto prevent condensation. The sensor has been specifically realisedto be removed from the valve body for maintenance or replacementif necessary.

Natural circulation clapet valveThe function of this clapet device is to ensurenatural circulation of the medium in the event ofpump stop due to an electric power failure.When the pump is active, the thrust of mediumkeeps the valve closed, forcing the water to flowthrough the anti-condensation thermostaticvalve. If the event of pump stop, when the waterwithin the boiler is at high temperature, a naturalcirculation of the water begins, by-passing the anti-condensationvalve, thus preventing the temperature in the generator fromreaching dangerous high levels. The unit is provided with naturalcirculation valve locked. To activate its function, remove the lockingscrew.

Dirt separatorIn order to carry out continuous dirt separationin the system it is available the 5462 seriesDIRTCAL® dirt separator as accessory.


1) Anti-condensation thermostatic device2) Three-speed pump / High-efficiency pump3) Natural circulation clapet valve4) Union with built-in ball valve5) Temperature gauge housing6) Insulation

ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

ANTI-CONDENSATION RECIRCULATION AND DISTRIBUTION UNIT

10


Anti-condensation recirculationand distribution unit,

with thermostatic control of the return temperatureto solid fuel generators. Brass body.With insulation.

Flowby-pass

Generatorreturn

Systemreturn

2

4

1

3

5

5

54

4 6

Setting 45°C 55°C 60°C 70°C� 4 5 76

� Code completion

Code SettingsConnectionDN

28106�

28106�WYP28107�

28107�WYP


1” F1” F

1 1/4” F1 1/4” F

25252525

ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

ANTI-CONDENSATION RECIRCULATION AND DISTRIBUTION UNIT

Tf

TrTmix

Tset

Tf

Tf

Tmix Tmix

Tset Tset

TrTr

Tf

TrTmix

Tset

Tf

Tf

Tmix Tmix

Tset Tset

TrTr

Tf

TrTmix

Tset

Tf

Tf

Tmix Tmix

Tset Tset

TrTr

Tf

TrTmix

Tset

Tf

Tf

Tmix Tmix

Tset Tset

TrTr

Operating principle

The thermostat, completely immersed in the medium, controls the movement of an obturator that regulates the flows in by-pass and toward thesystem. On starting up the generator, the recirculation unit recirculates the flow water so as to bring the generator up to temperature as quicklyas possible (1). When the flow temperature Tf exceeds the set of the anti-condensation valve Tset, the unit’s cold port starts opening to producethe mixing Tmix: in this phase the system loading begins (2). When the generator return temperature Tmix is greater than the set of the anti-condensation valve by approximately 10°C, the by-pass port gets closed and water returns to the generator at the same temperature of thesystem return (3).

M M

SOLID FUELGENERATOR

M M

SOLID FUELGENERATOR

Application diagram

System with inertial storage

11

1

Tmix > Tset + 10°C SYSTEM LOADEDby-pass closedsystem return open

Tf > Tmix > Tset +10°C, Tmix=Tr

PUMP OFFNatural circulation valve openNatural circulation of the medium

Tf > Tset START OF SYSTEM LOADINGby-pass opensystem return open

Tf > Tset, Tr < Tset, Tmix=Tset

2

3 4

Tf ≤ Tset SYSTEM START UP TRANSIENTby-pass opensystem return closed

Tf ≤ Tset, Tmix=Tf

Tf = Flow temperatureTset = Anti-condensation set temperature

Tmix = Mixed water temperature of generator returnTr = System return temperature

Safety devices to choose accordingto current regulations

CONNECTION AND ENERGY MANAGEMENT COMPACT UNIT(heating version)

ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

12

285060HE1285065HE1285060HE2285065HE2

Code

without anti-condensation valve

without anti-condensation valve

RS 4-3

RS 4-3

Y. P. 25/6

Y. P. 25/6

Primarycirculationpump

1”1”1”1”

DN

2850 tech. broch. 01259

Connection and energymanagement compact unit.

BOILER FLOWSYSTEMFLOW

BOILER RETURNSYSTEMRETURN

SOLID FUEL GENER.FLOW

SOLID FUEL GENER.RETURN

Function

Main functional features:- connection of new solid fuel generators (both boilers andresidential devices, with maximum heat output of 35 kW, bothwith open or closed vessel);

- automatic operation management between the solid fuel generatorand boiler;

- built-in anti-condensation system (optional) for solid fuel generator;

- compact unit with reduced overall dimensions, with easy hydraulic connection


1) Single casting unit with RS 4-3 or YONOS PARA 25/6 RKC pump, complete with anti-condensation valve (optional), primary side

2) YONOS PARA 15/6 RKA pump, secondary side (system)3) Brazed plate heat exchanger4) Digital regulator5) Shut-off valve6) Wall mounting tamplate7) Check valve8) Manual air vent9) Temperature gauge

Code

285010

Painted steel cover RAL 9010.

Technical specification

Performance

Medium: water, glycol solutionsMax. percentage of glycol: 30%Working temperature range: 5-100°CMax. working pressure: 10 barMax. heat exchanger net output: 35 kWMax. recommended primary circuit flow rate: 1,7 m3/hMax. recommended secondary circuit flow rate: 1,7 m3/hAnticondensation setting temperature (Tset): 55°CSetting accuracy: ±2°CBy-pass complete closing temperature: Tmix = Tset+10°C = TrConnections: - primary side: 1” F

- secondary side, system: 1” F- secondary side, boiler: 3/4” F

RegulatorElectric supply: 230 V - 50/60 Hz

PumpPrimary circuit: 3 speed pump RS 4-3

or high-efficiency YONOS PARA 25/6 RKCSecondary circuit: high-efficiency pump YONOS PARA 15/6 RKA

Open vessel

Closed vessel

TP 1 P 2

RT

Heating system

S1

SOLID FUELGENERATOR

S1

R4

HEATINGBOILER

Check valve to be compulsory installed

*

SOL ID FUELGENERATOR *

SOLID FUELGENERATOR

FLOW

SOLID FUELGENERATOR

RETURN

BOILERFLOW

SYSTEMFLOW

BOILERRETURNSYSTEMRETURN

TP 1 P 2

R T

S1

S1

R4

Open vessel

Closed vessel

Heating system

SOLID FUELGENERATOR

HEATINGBOILER

Check valve to be compulsory installed

*

SOLID FUELGENERATOR

*

SOLID FUELGENERATOR

FLOW

SOLID FUELGENERATOR

RETURN

BOILERFLOW

SYSTEMFLOW

BOILERRETURNSYSTEMRETURN

ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

CONNECTION AND ENERGY MANAGEMENT COMPACT UNIT(heating version)

Operating conditions

The digital regulator automatically manages the unit’s operation, receiving the signal from the probe on the solid fuel generator flow pipe andactivating the pumps. If the solid fuel generator is not active, the boiler is actived for the heating system.

13

Phase 1: solid fuel generator active- Coloured components = active, grey components = not active- Pumps P1 and P2 ON- Boiler OFF- Pump P2 supplies the heating system with water

Phase 2: solid fuel generator off or not at temperature- Coloured components = active, grey components = not active- Pumps P1 and P2 OFF- Boiler active- Boiler pump supplies the heating system with water

Heating with solid fuel generator

Heating with boiler

CONNECTION AND ENERGY MANAGEMENT UNIT(heating version)

ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

SOLI

D FU

ELG

ENER

ATO

RFL

OW

SOLI

D FU

ELG

ENER

ATO

RRE

TURN BO

ILER

FLO

W

BOIL

ERRE

TURN

SYST

EMRE

TURN

SYST

EMFL

OW

Function

The connection and energy management unit preassembled in thebox enables combining solid fuel generators with another type ofgenerator, which may already be present in the heating system.Main functional features:- connection of new solid fuel generators (both boilers andresidential devices, with maximum heat output of 35 kW, bothwith open or closed vessel) with other closed vessel generators;

- possibility of not adding the power outputs of the twogenerators as described in INAIL (Italy);

- automatic system management with a specific digital regulator forheating circuits and simple thermal solar system;

- built-in anti-condensation system (optional) for solid fuel generator;- easy access to components for maintenance; - practical installation thanks to the arrangement in a box.


Performance

Medium: water, glycol solutionsMax. percentage of glycol: 30%Working temperature range: 5–100°CMax. working pressure: 10 barMax. heat exchanger net output: 35 kWMax. recommended primary circuit flow rate: 1,5 m3/hMax. recommended secondary circuit flow rate (system): 1,5 m3/h

Anti-condensation set temperature (optional)(Tset):45°C, 55°C, 60°C, 70°C

Setting accuracy: ±2°CBy-pass complete closing temperature: Tmix = Tset+10°C = Tr

Connections: 3/4” M


PumpsHigh-efficiency pump: YONOS PARA 25/6 RKA

YONOS PARA 15/6 RKA

Diverter valve with spring returnMax. working pressure: 10 barDp max: 1 bar

Diverter valve actuator with spring returnSynchronous motorNormally closedPower supply: 230 V - 50 HzOpening time: 70–75 sClosing time: 5–7 s


1) Wilo YONOS PARA 25/6 RKA pump on primary side for solid fuel generator

2) Wilo YONOS PARA 15/6 RKA pump on secondary side (system)

3) Brazed plate heat exchanger4) Anti-condensation valve (optional)5) Three-way diverter valve

with spring return6) Dirt separator7) Digital regulator8) Shut-off ball valves 9) Box for exposed mounting

A) Code 285150WYP without anti-condensation valve

14

28515.WYP285150WYP

Codice

3/4” M

3/4” M without anti-condensation valve

2851 tech. broch. 01227

Connection and energy management unit, heating version.

45°C 55°C 60°C 70°C —

Settings

Setting 45°C 55°C 60°C 70°C� 4 5 76

� Code completion

A

Code 285150WYP without anti-condensation valve

Open vessel

Closed vessel

SO

LID

FU

EL

GE

NE

RA

TO

R

FLO

W

SOLI

D F

UEL

GEN

ERA

TOR

RET

UR

N

BO

ILER

FLO

W

BO

ILER

RET

UR

N

SYST

EMR

ETU

RN

SYST

EMFL

OW

D

T

P 1

P 2

C

V1

RT

Heating system

BOILERHEATING

K

S1

K

S1



K

S1

K

S1

D

T

P1

P2

C

V1

TR

SO

LID

FU

EL

GE

NE

RA

TO

R

FLO

W

SO

LID

FU

EL

GE

NE

RA

TO

RR

ET

UR

N

BO

ILE

RFL

OW

BO

ILE

RR

ET

UR

N

SY

ST

EM

RE

TU

RN

SY

ST

EM

FLO

W

Open vessel

Closed vessel

Heating system

BOILERHEATING

SOLID FUELGENERATOR

SOLID FUELGENERATOR

ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

CONNECTION AND ENERGY MANAGEMENT UNIT(heating version)


The digital regulator automatically manages the unit’s operation, receiving the signal from the probes and activating the pumps, the motorizedvalve and the generators. The heating circuit is managed according to need.

15

Phase 1: solid fuel generator active- Coloured components = active, grey components = not active- Pumps P1 and P2 ON- Boiler OFF- Valve V1 connects the system to the solid fuel generator via the heat exchanger

Phase 2: solid fuel generator off or not at temperature- Coloured components = active, grey components = not active- Pumps P1 and P2 OFF- Boiler active- Valve V1 connects the system to the boiler

Heating with solid fuel generator

Heating with boiler

ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

CONNECTION AND ENERGY MANAGEMENT UNIT(heating and domestic hot water with storage version)

Open vessel

Closed vessel

Heating system

BOILERHEATING

SOLID FUELGENERATOR

SOLID FUELGENERATOR

SOLI

D FU

ELG

ENER

ATO

RFL

OW

SOLI

D FU

ELG

ENER

ATO

RRE

TURN

BOIL

ER F

LOW

BOIL

ER R

ETU

RN

SYST

EMRE

TURN

SYST

EMFL

OW

DHW

STO

RAG

ERE

TURN

DHW

STO

RAG

EFL

OW

Function

The connection and energy management unit preassembled in thebox enables combining solid fuel generators with another type ofgenerator, which may already be present in the heating system.The unit is fitted for the production of domestic hot water with aconnection to a storage.Main functional features:- connection of new solid fuel generators (both boilers andresidential devices, with maximum heat output of 35 kW, bothwith open or closed vessel) with other closed vessel generators

- possibility of not adding the power outputs of the twogenerators as described in INAIL (Italy)

- automatic system management with a specific digital regulator forheating circuits, domestic water storage and simple solar thermalsystem

- built-in anti-condensation system (optional) for solid fuelgenerator

- easy access to components for maintenance- practical installation thanks to the arrangement in a box.


Performance

Medium: water, glycol solutionsMax. percentage of glycol: 30%Working temperature range: 5–100°CMax. working pressure: 10 barMax. heat exchanger net output: 35 kWMax. recommended primary circuit flow rate: 1,5 m3/hMax. recommended secondary circuit flow rate (system): 1,5 m3/h

Anti-condensation set temperatures (optional) (Tset):45°C, 55°C, 60°C, 70°C

Setting accuracy: ±2°CBy-pass complete closing temperature: Tmix = Tset+10°C = Tr



PumpsSee 2851 series

Diverter valves with spring returnSee 2851 series

Diverter valve actuator with spring returnSynchronous motorNormally closedPower supply: 230 V - 50 HzOpening time: 70–75 sClosing time: 5–7 s

16





with spring return6) Dirt separator7) Digital regulator8) Shut-off ball valves 9) Box for exposed mounting10) Three-way diverter valve

with spring return for priority on domestic water with storage


A

Code 285350WYPwithout anti-condensation valve

28535.WYP285350WYP

Codice

3/4” M


45°C 55°C 60°C 70°C —

Settings

Setting 45°C 55°C 60°C 70°C� 4 5 76

� Code completion

2853 tech. broch. 01228

Connection and energy management unit, heating and domestic hot water with storage version.

ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

TA

K

S1

K

S1

D

T

P1V2

P2

C

V1

S2

RT

Domestic watersystem

DCW

DHW

D

SO

LID

FU

EL

GE

NE

RA

TO

R

FLO

W

SO

LID

FU

EL

GE

NE

RA

TO

RR

ET

UR

N

BO

ILE

R F

LOW

BO

ILE

R R

ET

UR

N

SY

ST

EM

RE

TU

RN

SY

ST

EM

FLO

W

Open vessel

Closed vessel

Heating system

BOILERHEAT ING

SOLID FUELGENERATOR

DHW

STO

RAG

ERE

TURN

DHW

STO

RAG

EFL

OW

SOLID FUELGENERATOR

TA

K

S1

K

S1

D

T

P1V2

P2

C

V1

S2

RT

DCW

DHW

D

Domestic watersystem

SO

LID

FU

EL

GE

NE

RA

TO

R

FLO

W

SO

LID

FU

EL

GE

NE

RA

TO

RR

ET

UR

N

BO

ILE

R F

LOW

BO

ILE

R R

ET

UR

N

SY

ST

EM

RE

TU

RN

SY

ST

EM

FLO

W

Open vessel

Closed vessel

Heating system

BOIL ERHEATING

SOL ID FUELGENER ATOR

DHW

STO

RAG

ERE

TURN

DHW

STO

RAG

EFL

OW

SOL ID FUELGENER ATOR


The digital regulator automatically manages the unit’s operation, receiving the signal from the probes and activating the pumps, the motorizedvalves and the generators. The heating circuit and the preparation of domestic hot water with storage are managed according to need.

NOTE: for heating operation, please refer to the diagrams in “Connection and energy management unit, heating version”2851 series

CONNECTION AND ENERGY MANAGEMENT UNIT(heating and domestic hot water with storage version)

17

Phase 1: solid fuel generator active- Coloured components = active, grey components = not active

- Pumps P1 and P2 ON- Boiler OFF- Valve V1 connects the system to the solid fuel generator via the heat exchanger- Valve V2 diverts the flow of system water towards the domestic water storage

Phase 2: solid fuel generator off or not at temperature- Coloured components = active, grey components = not active

- Pumps P1 and P2 OFF- Boiler active- Valve V1 connects the system to the boiler- Valve V2 diverts the flow of system water towards the domestic water storage

Domestic hot water production with solid fuel generator

Domestic hot water production with boiler

ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

CONNECTION AND ENERGY MANAGEMENT UNIT(heating and instantaneous domestic hot water version)

DHW

OU

TLET

DCW

INLE

T

BOIL

ER F

LOW

BOIL

ER R

ETU

RN

SYST

EMRE

TURN

SYST

EMFL

OW

SOLI

D FU

ELG

ENER

ATO

RFL

OW

SOLI

D FU

ELG

ENER

ATO

RRE

TURN

Function

The connection and energy management unit preassembled in thebox enables combining solid fuel generators with another type ofgenerator, which may already be present in the heating system.The unit is fitted for the production of instantaneous domestic hotwater with a heat exchanger.Main functional features:- connection of new solid fuel generators (both boilers andresidential devices, with maximum heat output of 35 kW, bothwith open or closed vessel) with other closed vessel generators

- possibility of not adding the power outputs of the twogenerators as described in INAIL (Italy)

- automatic system management with a specific digital regulator forheating circuits, instantaneous production of domestic hot waterand simple solar thermal system

- built-in anti-condensation system (optional) for solid fuelgenerator

- easy access to components for maintenance- practical installation thanks to the arrangement in a box.


Performance

Medium: water, glycol solutionsMax. percentage of glycol: 30%Working temperature range: 5–100°CMax. working pressure: 10 barMax. heat exchanger net output: 35 kWMax. recommended primary circuit flow rate: 1,5 m3/hMax. recommended secondary circuit flow rate (system): 1,5 m3/hMax. domestic hot water heat exchanger net output: 35 kWMax. domestic hot water flow rate delivery: 1,1 m3/h

Anti-condensation set temperatures (optional) (Tset):45°C, 55°C, 60°C, 70°C

Setting accuracy: ±2°CBy-pass complete closing temperature: Tmix = Tset + 10°C = Tr



PumpsSee 2851 series

Flow switchContacts normally open (NO)Contacts close with increasing flow at: 156 l/h Contacts open with decreasing flow at: 108 l/h

Diverter valve with spring returnSee 2851 series

Diverter valve actuator with spring returnSee 2851 series

Diverter ball valve for DHW priorityMax. working pressure: 10 barDp max: 10 bar

Diverter ball valve actuator for DHW prioritySynchronous motorElectric supply: 230 V (±10%) - 50/60 HzOperating time (angle of rotation 90°): 10 s

18





with spring return6) Dirt separator7) Digital regulator8) Shut-off ball valves 9) Box for exposed mounting10) Three-way three point diverter ball valve

for DHW priority11) Brazed plate heat exchanger for DHW12) Flow switch


A

Code 285550WYPwithout anti-condensation valve

28555�WYP285550WYP

Code

3/4” M


45°C 55°C 60°C 70°C —

Settings

Setting 45°C 55°C 60°C 70°C� 4 5 76

� Code completion

2855 tech. broch. 01229

Connection and energy management unit, heating and instantaneous domestic hot water version.

ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

TA

D

D

T

P1V3

P2

C

V1

F

S3

RT

Domesticwater system

D

SOLARINCAL

M

DHW

K

S1

K

S1

Open vessel

Closed vessel

Heating system

BOILERHEATING

SOL ID FUELGENERATOR


DHW

OU

TLET

DCW

INLE

T

BOIL

ER F

LOW

BOIL

ER R

ETU

RN

SYST

EMRE

TURN

SYST

EMFL

OW

SOLI

D FU

ELG

ENER

ATO

RFL

OW

SOLI

D FU

ELG

ENER

ATO

RRE

TURN

TA

D

D

T

P1V3

P2

C

V1

F

S3

RT

D

SOLARINCAL

M

DHW

K

S1

K

S1

Domesticwater system

DHW

OU

TLET

DCW

INLE

T

BOIL

ER F

LOW

BOIL

ER R

ETU

RN

SYST

EMRE

TURN

SYST

EMFL

OW

SOLI

D FU

ELG

ENER

ATO

RFL

OW

SOLI

D FU

ELG

ENER

ATO

RRE

TURN

Open vessel

Closed vessel

Heating system

BOILERHEATING

SOLID FUELGENERATOR

SOLID FUELGENERATOR


The digital regulator automatically manages the unit’s operation, receiving the signal from the probes and activating the pumps, the motorizedvalves and the generators. The heating circuit and the instantaneous preparation of domestic hot water are managed according to need.

NOTE: for heating operation, please refer to the diagrams in “Connection and energy management unit, heating version”2851 series

CONNECTION AND ENERGY MANAGEMENT UNIT(heating and instantaneous domestic hot water version)

19

Phase 2: solid fuel generator OFF or not at temperature- Coloured components = active, grey components = not active- Pumps P1 and P2 OFF- Valve V1 connects the system to the boiler- Boiler active for the production of DHW by means of thermal integration via the kit SOLARINCAL 265 series type

Phase 1: solid fuel generator active- Coloured components = active, grey components = not active- Pumps P1 ON, P2 OFF- Boiler OFF- Valve V1 connects the system to the solid fuel generator via the heat exchanger- Valve V3, activated by the flow switch F, diverts the flow of the solid fuel generator towards the DHW heat exchanger

Domestic hot water production with solid fuel generator

Domestic hot water production with boiler

DIGITAL REGULATOR FOR SYSTEMS WITH SOLID FUEL GENERATOR

Function

The digital regulator makes it possible to combine a solid fuelgenerator with another type of generator already present in theheating system.The digital regulator automatically manages the two generators,receiving the signal from the probes and activating the pumps, themotorized diverter valves in the system, according to the heatingcircuit needs.Depending on the type and quantity of installed probes, theregulator supports the following system solutions:- heating;- production of domestic hot water by means of storage orinstantaneous with plate heat exchanger;

- management of inertial water storage in parallel on the heatingcircuit or alternatively management of an independent solarsystem and direct inertial water storage.

The regulator has different programs which can be customized byuser to several system situations.

Description of controls

1. Functional status indicator LED.2. Mini DIN connector on front of panel for PC connection.3. Display: menu display.4. Select knob: selection of menu, functions and parameter editing.5. Function keys.

20 ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

12

34

5

152200

Code

V5

M M

S5

DD

T

P1

P2

C

V1

BOIL ERHEATING

D

Closed vessel

K

S1


Open vessel

K

S1

S4

V4

Inertialstorage

SOLID FUELGENERATOR

Program diagrams

The regulator allows the management of a thermal system complete with solid fuel generator, a boiler and an inertial water storage in parallel.

The phases of storage loading and unloading are automatically controlled, according to the system needs, with the consequent activation ordeactivation of the boiler and the solid fuel generator.

Depending on the system type, different programs are available to design various functional configurations, both for the heating and thedomestic hot water production.

1522Digital regulatorfor systems with solidfuel generator.Electric supply:230 V (ac); ±10%, 50/60 Hz.Protection class: II.Protection class: IP 40.Complet with three probes.Optional probes to be chosen according to system type.

ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

21

DIGITAL REGULATOR FOR SYSTEMS WITH SOLID FUEL GENERATOR

- +

Optimiser ®

ACCUMULOINERZIALEDIRETTO

Sol 2

TR

D

T

P1V2

P2

C

V1

S2

RTAFS

ACS

HEAT INGBOIL ER

D

Sol 1

Psol

S1

DIRECTINERTIALSTORAGE

SOLID FUELGENERATOR

SOLID FUELGENERATOR

Open vessel

Closed vessel

Heating system

Heating with direct inertial water storage, domestic hot water production with storage integrated with solar system

TA

- +

Optimiser ®

ACCUMULOINERZIALEDIRETTO

TRSol 2

V4

T

D

DP1V3

P2

C

V1

F

S3

RT

domesticwater system

D

SOL ARINCAL

M

DHW

D

optionaldissipator

S1

Sol 1

Psol

DIRECTINERTIALSTORAGE

HEATINGBOILER

SOLID FUELGENERATOR

SOLID FUELGENERATOR

Open vessel

Closed vessel

Heating with direct inertial water storage integrated with solar system, instantaneous domestic hot water production

SOLID FUEL GENERATOR-TO-GAS BOILER CONNECTION KIT

22 ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

The integration kits make it possible to combine solid fuel generators, equipped with domestic water storage or instantaneous heat exchanger,with gas boilers. Depending on the temperature, the domestic water arriving from the solid fuel generator is sent directly to the user or divertedinto the boiler for thermal integration.


SOLARINCAL

Function

The thermostat, by means of the probe positioned on the hot waterflow from the storage or the DHW heat exchanger built-into the solidfuel generator, controls the diverter valve at the kit inlet. Dependingon the temperature setting, the valve diverts the water towards theuser circuit or the boiler circuit, with thermal integration.A thermostatic anti-scald mixing valve, at the kit outlet, constantlycontrols the temperature of the water sent to the user.

265352

Code

3/4”

Spare parts for connection kit 265 series.

F29525F29466F29467

Code

switch relay box, 3 contact type

probe Ø 15 mm

pocket probe Ø 15 mm


SOLARINCAL-T.

Function

A thermostatic diverter valve, at the kit inlet, receives hot watercoming from the storage or the DHW heat exchanger built-into thesolid fuel generator.Depending on the temperature setting, the valve diverts the waterautomatically and in a proportional manner towards the user circuitor the boiler with storage circuit, with thermal integration.The valve modulates the flow rates to optimize the energy containedin the storage or instantaneously produced by the heat exchangerbuilt-into the solid fuel generator and reduces boiler operation timesto a minimum.A thermostatic anti-scald mixing valve, at the kit outlet, constantlycontrols and limits the temperature of the water sent to the user.

262350

Code

3/4”

263350

Code

3/4”


SOLARINCAL-T PLUS

Funzione

A thermostatic diverter valve, at the kit inlet, receives hot water comingfrom the storage or the DHW heat exchanger built-into the solid fuelgenerator. Depending on the temperature setting, the valve diverts thewater automatically and proportionally towards the user circuit or theinstantaneous boiler circuit, with thermal integration.The valve modulates the flow rates to optimise the energy contained inthe storage or instantaneously produced by the heat exchanger built-into the solid fuel generator and reduces boiler operation times to aminimum.A specific thermostatic control device limits the boiler inlet temperatureto prevent it being switched on and off too often, which leads to huntingand irregular operation.A thermostatic anti-scald mixing valve, at the kit outlet, constantlycontrols the temperature of the water sent to the user.

SOLID FUEL GENERATOR-TO-GAS BOILER CONNECTION KIT

ACCREDITED

ISO 9001 No. 0003ISO 9001 FM 21654

23

DHWSTORAGE

INSTANTANEOUSDHW WITH COIL

OR HEATEXCHANGER

SOLID FUELGENERATOR

SOLID FUELGENERATOR

MIXEDCOLD

DCWINLET

Application diagram of SOLARINCAL-T 262 series kit with solid fuel generator

MODULATINGBOILER

DHWSTORAGE


OR HEATEXCHANGER

SOLID FUELGENERATOR

SOLID FUELGENERATOR

MIXEDCOLD DCW

INLET

Application diagram of SOLARINCAL 265 series kit with solid fuel generator

MODULATINGBOILER DHW

STORAGE


OR HEATEXCHANGER

SOLID FUELGENERATOR

SOLID FUELGENERATOR

MIXEDCOLD DCW

INLET

Application diagram of SOLARINCAL-T PLUS 262 series kit with solid fuel generator

COMPONENTS FOR BIOMASS SYSTEMS - Caleffi...heating system. 2) Residential devices: “residential...

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