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Company Introduction

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Production facility

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Research & Development

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Punching, Laser Cut and Bending

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Welding

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• Catena di montaggio

Assembly Lines

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Testing of Every Single Product

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Show room & Training room

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Product Range

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Ungaro heat devices Ungaro heat devices, operate exclusively with wood pellet fuel and/or wood, they are equipped according to the models with one or two separate combustion chambers. The hearth of the stove is the heat exchanger made on copper which allows to achieve an efficiency over 91%.

Ungaro heat devices have an internal chrono-thermostat to switch the stove on and off automatically (only for wood pellet).

Models Maia, 2-Fire and Yncas produce hot air too, through a fan with a capacity of 60m3/h, heating the ambience where the stove is installed with hot air.

Ungaro heat devices through their copper heat exchanger, may adopt an optional kit for the production of continuous hot drinking water.

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Ungaro Productsare divided in 2 families

Water Stoves EN 14785

Boilers EN 303-5

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Water Stoves family 2 - Fire Maia Yncas

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Water Stoves Maia Classic

Maia 34 Kw 34Maia 24 Kw 24

Maia 14 Kw 14

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Maia 34 Kw 34Maia 24 Kw 24Maia 14 Kw 14

Water Stoves Maia Style

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Maia 34 Kw 34Maia 24 Kw 24Maia 14 Kw 14

Water Stoves Maia Design

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Maia Design with furniture

Living 14 Kw 14 Living 24 Kw 24 Living 34 Kw 34

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2 fire 34 Kw 342 fire 24 Kw 24

Water Stoves 2-Fire Classic

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2 fire 34 Kw 342 fire 24 Kw 24

Water Stoves 2-Fire Style

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Ivory

Ceramic shade proposal

Ochre Leather Bordeaux

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Noce

Aluminum shade proposal

Walnut Ivory BlackBordeauxCherry

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Water Stoves Yncas

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Boilers Family

FIT CTU

CTU PM Box

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Boilers CTU

CTU24 Kw 24

CTU34 Kw 34

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FIT 10/14 Kw 10/14

FIT 24 Kw 24

Boilers FIT

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Boilers CTU PM & Box

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Main technical sales arguments of Ungaro heat

devices

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Patent pending

Efficiency over 91%

Easy cleaning for constant performance in time

Ungaro copper heat exchanger & cleaning system

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OFF

30PUL

Maintenance and ordinary cleaning

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Working modes of Ungaro products The working modes of Ungaro heat devices is divided in the following steps:

Lighting mode (“fan asp” e “load wood”)Stabilizing mode (“fire on”)Working modeModulation modeSwitching off mode

Lighting mode (“fan asp” e “load wood”)

Electronics run a test of about 30 seconds to verify the correct working of the smoke fan (“fan asp”), right after the stove activate pellet gearmotor and ignition (“load wood”). After about 5 minutes the flame will be present.

Stabilizing mode (“fire on”)

Stabilizing of the flame will be on when smoke temperature will meet the value at Pr 13 (40° C as default), only at that moment electronics will disconnect ignition.

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Working mode

Further of the stabilizing, the stove starts the working mode; at the reaching of the default temperatures will be on the water circulator (water at 40° C) and the ambiance air fan (smoke at 90° C).

Modulation mode

Modulation mode starts at about 9° C below than the SET, the stove will reduce automatically the working speed to reduce fuel.

If modulation is run by an external ambience thermostat, at the reaching of the desired temperature, the stove will reduce automatically to the lowest speed and the display will show “t off”.

Switching off mode

By pressing button “off”, the pellet feeding gearmotor will be disconnected, smoke fan and air fan will run at max speed. All motors will be completely deactivated when smoke temperature will meet the safety value (40° C as default Pr 13).

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Translated in diagram …

www.ungarosrl.comFan Asp Fire On Load Wood

Temperature

Time

SET (objective)

Modulation start ∆ t 9°C from SET

Suitable working

conditions

Safety default

adjustable Pr 12

How the stove works on PERFECT working conditions

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Temperature

Time

SET (objective)

Modulation start ∆ t 9°C from SET

Re-start ∆t 3°C from SET

Suitable working

conditions

Working mode

Working mode

H2O modeAdjust. Pr 23

Stop Fire mode

Safety default adjustable Pr 12

How the stove works if it’s OVER-SIZED than System

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Temperature

Time

SET (objective)

Modulation start ∆ t 9°C < SET

Re-start ∆t 3°C < SET

Suitable working

conditions

Working mode

Working mode

H2O modeAdjust. Pr 23

Stop Fire mode

How the stove works if it’s VERY OVER-SIZED than System

Stop Fire mode starts

earlier

Safety default adjustable Pr 12

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Temperature

Time

SET (objective)

Modulation start ∆ t 9°C < SET

Suitable working

conditions

How the stove works if it’s DOWN-SIZED than System

Safety default adjustable Pr 12

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Connection to water tank (Puffer Mode)

WATER TANK (PUFFER)

Well for temperature detection

Air thermostat

Electric connection

In “puffer mode” stove will work as follows:  Modulation will start according to water temperature inside water tank. It will enter on “stop fire” mode following the set of key 22 (pr 84).

It will turn on again, exit from “stop fire” following the set of key 23 (pr 85)

Despite the stove is in “On” or “Off” mode, water circulator will stop when temperature of the water in the stove will be 2° C higher of the set required on water tank. It will start again circulation when temperature will be 4° C higher than the set required. Hot air (where present), will take as reference to turn on the temperature of smoke (Pr-11), its speed will depend on the speed of the stove (Po 1 to Po9). The speed of hot air may also be adjust with Pr 25-26-27.

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Temperature

Time

SET+ ( 2°…15°C) Key 22 Pr 84

Modulation start ∆ t 9°C < SET

Re- start ∆t 3°C < SET+ ( 2°…15° C) Key 23 Pr 85

Suitable working

conditions

Working mode

Working mode

Stop Fire mode

How the stove works in PUFFER MODE

Safety default adjustable Pr 12

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What is there inside?

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Water Stoves Norm “EN 14785”

Copper heat exchanger Efficiency over 91% Easy cleaning and maintenance of the

exchanger Hot air fan Production of continuous hot drinking water Certification EN 14785

MAIA Models

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Serie Maia• Display

• Hot air fan

• Pressure transducer

• Electronic board

• Depressor

• Expansion vase

• Air vent valve

• Water circulator

• Safety valve

• Ignition

• Smoke fan

• Hot drinking water production unit

• Pellet feeding gearmotor

• Electric clamp

• Safety thermostats

• Main switch

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Copper heat exchanger Water fire place most powerful of the

market Efficiency over 91% Easy cleaning and maintenance of the

exchanger Hot air fan Production of continuous hot drinking water Frontal chimney inspection (patented) Double pan ash drawer (patented) Certification EN 14785

Water Stoves Norm “EN 14785”

YNCAS Models

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YNCAS Models

Double pan ash drawer (patented) Frontal chimney inspection (patented)

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YNCAS Models• Display

• Hot air fan

• Pressure transducer

• Electronic board

• Depressor

• Expansion vase

• Air vent valve

• Water circulator

• Safety valve

• Ignition

• Smoke fan

• Hot drinking water production unit

• Pellet feeding gearmotor

• Electric clamp

• Safety thermostats

• Main switch

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How to remove side panels from Yncas models

1. Disconnect power supply

2. Disassemble the lower frame to access the tightening screws

3. Unscrew the tightening screws

4. Extract the stove till the end of stroke

5. Remove panels unscrewing side screws

6. Perform maintenance and repair

N.B. tutte le operazioni di manutenzione vanno effettuate a stufa fredda e priva di alimentazione elettrica 

Remark : All maintenance operation must be carried out at cold stove and with no power supply 

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Double copper heat exchanger (on 34 kw model)

Double combustion chamber Double fuel feeding pellet and wood Double certification: Pellet EN 14785 Wood EN 13240 Installation close circuit for wood Efficiency over 91% Easy cleaning and maintenance of the

exchangers Hot air fan Production of continuous hot drinking water Double pan ash drawer (patented)

Water Stoves Norms “EN 14785” (pellet)

“ EN 13240” (wood) 2-FIRE Models

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2-FIRE Models

Wood

Pellet

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Serie 2-FIRE• Display

• Hot air fan

• Electronic board

• Depressor

• Air vent valve

• Pressure transducer

• Ignition

• Safety valve

• Smoke fan

• Water circulator

• Hot drinking water production unit

• Pellet gearmotor

• Safety thermostats

• Main switch

• Expansion vase

• Inlet valve primary air (wood)

• Safety discharging valve

• Automatic filling valve

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Larger copper heat exchanger to increase efficiency to the water

Efficiency over 91% Easy cleaning and maintenance of the

exchanger Production of continuous hot drinking

water Certification EN 303-5

In PM version: Automatic cleaning of the fire pot External pellet tank Long working autonomy and very low

cleaning operation

Boilers Norm “EN 303-5” CTU Models

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CTU Models• Display

• Pressure transducer

• Electronic board

• Depressor

• Expansion vase

• Air vent valve

• Water circulator

• Safety valve

• Ignition

• Smoke fan

• Hot drinking water production unit

• Pellet gearmotor

• Electric clamp

• Safety thermostats

• Main switch

2008/09 2009/10

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CTU PM Models• Display

• Display PM BOX

• Pressure transducer

• Electronic board

• Depressor

• Expansion vase

• Air vent valve

• Water circulator

• Safety valve

• Ignition

• Smoke fan

• Hot drinking water production unit

• Pellet gearmotor

• Electric clamp

• Safety thermostats

• Main switch

• Pellet presence sensors

• PM BOX electronic board

• Fire pot cleaning gearmotor

• PM BOX main switch

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CTU PM cleaning system

ONOFF

Fire pot upper part

Fire pot

Cleaning grill

Ash drawer

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PM BOX

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Copper heat exchanger Efficiency over 91% Easy cleaning and maintenance of the

exchanger Production of continuous hot drinking

water Double ignition Option of installing outside the house Install close to wall Lateral smoke exit Certification EN 303-5

FIT ModelsBoilers Norm “EN 303-5”

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FIT Models• Display

• Pressure transducer

• Electronic board

• Depressor

• Expansion vase

• Air vent valve

• Water circulator

• Safety valve

• Ignitions ( 2 )

• Smoke fan

• Hot drinking water production unit

• Pellet gearmotor

• Electric clamp

• Safety thermostats

• Main switch

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Display symbol description

It’s on when the mode of hot drinkig water is activate.

It’s on when stove is operatig on conventional mode.

It’s on when the air fan is operating.

It’s on when the water circulator is operating.

It’s on when the smoke fan is operating.It’s on when display receives the remote control signal.

It’s on when an external ambience thermostat is not connected. Blinking when an external ambience thermostat is connected.

It’s on during the time the pellet feeding gearmotor is operating.It’s on when electric ignition is activate.

It’s on when automatic switch on/off is operating.

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When smoke temperature will reach 41° C, display will show “Fire ON” (remaining in this phase for several minutes allowing the flame to stabilize itself ).

At this point the upper display will show the working speed that must be set at 9 (max) using button 6 during first working hours. The lower display will show the outlet water temperature that must be set at 65°C by pressing only once button 3-“SET” and increasing or decreasing water temperature through buttons 2 and 1. 

Display messages at switch on

Press button 4 until the display will show “FAN ASP”, at this stage the stove will perform a diagnosis on the smoke fan (about 30 seconds).

Right further display will show “LOAD WOOD”, cochlea will start moving feeding pellet and electric ignition will be on.

Only for 2-Fire Models.

When we would like to switch on only the wood combustion chamber, the upper display will show “OFF”, the lower will show the outlet water temperature.  The temperature of the outlet water is electronically controlled by the opening and closing of the primary air inlet valve. The offset can be set from 0° to 20° C.The wood can be light only manually as a conventional wood stove. The hot air will not be operating, the option is valid only with pellet combustion chamber on.

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Display messages

To check water pressure inside the stove press button P2. The upper display will show the pressure in Bar.

Stove has an automatic cleaning system self-activating. Range and duration can be set. When the cleaning mode will be activate the display will show “PUL FIRE”, little later stove will return on working mode.

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Troubleshooting part wise

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Black-out

In event of black-outs, stove is protected by 2 fuses located at the rear.

FUSES

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Black-out If black-out will be shorter that 1 minute, stove will not go on

alarm “NO RETE”;

If black-out will be longer than 1 minute, stove will stop feeding pellet and will go to alarm “NO RETE”; stove could be switch on again only after the cooling, by first cleaning the cast iron fire pot, than manual start pressing button P4.

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Gearmotor

Gearmotor feeds stove with wood pellet.

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What are the events showing the inappropriate working of the gearmotor ? stove does not turn on. stove suddenly turns off. quantity of wood pellet is wrong

Over-loading (too much pellet on the fire pot) Lacks of pellet on the fire pot.

What are the main causes of breakage? extremely hard wood pellet. different fuel from wood pellet. external parts on the fuel tank blocking the gearmotor (nuts, nails, etc. ). defective part, wear.

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What is going on if the gear motor does not work ?

Wood pellet does not fall in the fire pot. The stove does not start. Leakage of power. Most common alarm shown on display “PUL BRAC – NO WOOD”.

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How to replace a gearmotor.

1. Disconnect power supply

2. Disassemble the rear panel

3. Unscrew the fixing screw as shown

4. Disconnect wiring

5. Remove gearmotor

6. Replace new gearmotor and fix screw

Remark : All maintenance operation must be carried out at cold stove and with no power supply 

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Smoke fan

Smoke fan generates depression in the combustion chamber, forcing the emission of

the smokes.

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What is going on if the smoke fan does not work? Accumulation of smoke in the combustion chamber. Alarm shown on the display : “NO DEP”.

What are the main causes of breakage?

Tension swings. Power cable broken or damaged. Defective part, wear.

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What are the events showing the inappropriate working of the smoke fan ?

The stove does not turn on. Accumulation of smoke in the combustion chamber. Accumulation of wood pellet in the fire pot. The stove has a defective combustion.

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How to replace a smoke fan.

1. Disconnect power supply

2. Disassemble the rear and the sides panels

3. Unscrew the 4 fixing screws as shown

4. Disconnect wiring

5. Remove and replace new smoke fan

N.B. tutte le operazioni di manutenzione vanno effettuate a stufa fredda e priva di alimentazione elettrica 

Remark : All maintenance operation must be carried out at cold stove and with no power supply

 

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Air Fan

The air fan blows hot air in the ambience where the stove is installed.

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What is going on if the air fan does not work? The stove does not blow hot air

What are the main causes of breakage? Tension swings. Power cable broken or damaged. Defective part, wear.

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What are the events showing the inappropriate working of the smoke fan? Bad smell. Leakage of power.

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How to replace a smoke fan

1. Disconnect power supply

2. Disassemble side panels

3. Unscrew the 5 screws as shown

4. Disconnect wiring

5. Remove and replace new air fan

N.B. tutte le operazioni di manutenzione vanno effettuate a stufa fredda e priva di alimentazione elettrica 

Remark : All maintenance operation must be carried out at cold stove and with no power supply 

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Electronic ignition

Electronic ignition lights pellet in the fire pot.

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What is going on if the electronic ignition does not work? The stove does not turn on. Alarm most shown on display “NO WOOD – PUL BRAC”.

What are the main causes of breakage? Tension swings. Power cable broken or damaged. Defective part, wear.

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What are the events showing the inappropriate working of the ignition? The stove doesn’t turn on, or it turns on in a longer time. The stove turn on, but with a lot of smoke on combustion chamber. Leakage of power.

Ignition working 100%.

Ignition not working properly.

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How to replace the electronic ignition1. Disconnect power supply

2. Disassemble rear and side panels

3. Disconnect ignition from mother board

4. Remove gearmotor as shown

5. Unscrew ignition as shown

6. Remove and replace new ignition

N.B. tutte le operazioni di manutenzione vanno effettuate a stufa fredda e priva di alimentazione elettrica 

Remark : All maintenance operation must be carried out at cold stove and with no power supply  

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Depressor

Depressor is a safety device checking the right depression on the outlet of the smoke

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What is going on if the depressor does not work?

The stove doesn’t turn on. No power to the wood pellet gearmotor. Alarm most shown on the display: “NO DEP”

What are the main causes of breakage? Defective part, wear.

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What are the events showing the inappropriate working of the depressor?

Alarm on the display: “NO DEP”.

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How to adjust the combustion air Turn on the stove and make it run at max speed for 30 min. avoiding to enter on modulation mode. On old models not provided of entry for adjusting, disassemble the left panel. Disconnect the transparent sylicon tube and connect it to the mesurer, disconnect the red wire from pin 2(NO) and connect it to pin 1(NC).

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Default set for the combustion draft

Speed shown on display Speed on parametersSpeed 1 (Po 1) Speed 1 (Pr 18)Speed 3 (Po 3) Speed 2 (Pr 19)Speed 5 (Po 5) Speed 3 (Pr 20)Speed 7 (Po 7) Speed 4 (Pr 21)Speed 9 (Po 9) Speed 5 (Pr 22)

14 Kw ModelsWorking Mode Draft in Pascal

Load wood (Pr 16) 100 paFire On (Pr 17) 60 paSpeed 1 (Po 1) (Pr 18) 35 ÷ 40 paSpeed 2 (Po 3) (Pr 19) 40 ÷ 45 paSpeed 3 (Po 5) (Pr 20) 50 ÷ 55 paSpeed 4 (Po 7) (Pr 21) 60 ÷ 65 paSpeed 5 (Po 9) (Pr 22) 70 ÷ 80 pa

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24 Kw ModelsWorking Mode Draft in Pascal

Load wood (Pr 16) 100 paFire On (Pr 17) 60 paSpeed 1 (Po 1) (Pr 18) 35 ÷ 40 paSpeed 2 (Po 3) (Pr 19) 40 ÷ 45 paSpeed 3 (Po 5) (Pr 20) 50 ÷ 55 paSpeed 4 (Po 7) (Pr 21) 60 ÷ 65 paSpeed 5 (Po 9) (Pr 22) 70 ÷ 80 pa

34 Kw ModelsWorking Mode Draft in Pascal

Load wood (Pr 16) 100 paFire On (Pr 17) 70 paSpeed 1 (Po 1) (Pr 18) 35 ÷ 40 paSpeed 2 (Po 3) (Pr 19) 40 ÷ 45 paSpeed 3 (Po 5) (Pr 20) 50 ÷ 55 paSpeed 4 (Po 7) (Pr 21) 65 ÷ 70 paSpeed 5 (Po 9) (Pr 22) 75 ÷ 80 pa

Default set for the combustion draft

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Display and Remote display

Display is the interface between user and stove.

Remote display is available as option.

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PM BOX display

Complementary display to controlPM BOX

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P1P3 P4

P6

P2 P5

P4 button is used to turn on and off the automatic pellet feeding.

P1 & P2 buttons are used to increase or decrease loading time; or to change values on the menu parameters.

P5 & P6 are used to choose different menus.

P3 is used to enter on the main menu.

 It’s on when automatic pellet feeding is activated.

 No effect.

 It’s on when pellet tank is loaded.

 No effect.

 It’s on when the maximum load on the stove has been overtaken.

 No effect.

 It’s off when stove tank is at minimum load.

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spento

▌ ▌ ▌

Automatic daily feeding program ON

▌

Automatic week-end feeding program ON

Automatic weekly feeding program ON

Automatic feeding program ON

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Electronic boardElectronic board controls any part of the stove. 

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What is going on if the electronic board does not work? stove does not turn on. continuous pellet feeding with stove in off mode. display off with fuses ok. unidentified failures of different parts without specific alarm. smoke fan always on. hot air fan always on, or not properly working.

What are the main causes of breakage? Tension swings. Failure of an electronic part run by the board. Not appropriate Mass or house electrical system not in order

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What are the events showing the inappropriate working of the electronic board?

display out of order. stove does not react. stove does not turn on automatic mode. continuous pellet feeding with stove in off mode. hot air fan always on, or not properly working. smoke fan always on.

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BICO - ARIA

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BICO - ARIA

2-fire

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Scheda Elettronica BOX

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Smoke Sensor

The smoke sensor is positioned on correspondence of the outlet of the smoke. It detects if the stove is switched on & off.

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What is going on if the smoke sensor does not work? The stove does not turn on. The smoke fun is always on. Alarm shown on the display “SOND FUMI”. Alarm shown on the display “PUL BRAC – NO FIRE” (when the stove is working). Alarm shown on the display “NO WOOD” (in starting mode).

What are the main causes of breakage? power cable broken or damaged. defective part, wear.

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What are the events showing the inappropriate working of the smoke sensor? The stove detects a defective temperature of the smoke. The stove does not turn on ( min. temperature of smoke to switch on is 41° C) Depending to the false temperature detected the stove may have:

Absence of hot air Continuous blowing of air (even cold air)

Remark: Any time smoke sensor might be replace, always consider polarity at connecting.

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Water Sensor

The water sensor detects the outlet temperature of the water, it provides to start

modulation and safety to avoid over temperature.

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What is going on if the water sensor does not work? The stove has an abnormal consume of fuel. The stove does not modulate. Water gets to over temperature. Possible alarms shown: ”SOND H2O”, “HOT H2O”, “SIC OFF”. In some cases could be present also alarm “PRESS H2O”.

What are the main causes of breakage? power cable broken or damaged. defective part, wear.

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What are the events showing the inappropriate working of the water sensor? The stove works at maximum speed, even if set temperature has been reached. The stove reacts as the temperature continuously changes. Leakage of power due to damaged wiring ( temperature blinking on the display). Display often shows alarms: “SOND H2O” or “HOT H2O”.

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Ambience SensorThe ambience sensor detects

temperature in the ambience where the stove is installed.

It switches on & off the air fan.If connected to water tank controls

modulation of the stove.

 

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What is going on if the air sensor does not work?

Air blowing may not be active when it should. Air temperature blinking on the display. Water circulator always on, even when stove is off (the stove has an “ice protection”, when ambience temperature is lower than 7 ° C, circulator is always working). What are the main causes of breakage? power cable broken or damaged.

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What are the events showing the inappropriate working of the air sensor?

The stove does not start air fan. The stove detects a wrong ambience temperature. Smoke fan is always on. Circulator is always on (“ice protection” with temperature lower than 7° C ).

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Circulator Mono-phase

Circulator leads hot water in the house system.

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What is going on if the circulator does not work?

Hot water in the stove and possible over temperature. System cold. Display shows alarms: “SIC OFF” or “HOT H2O”

What are the main causes of breakage? Presence of limestone due to a long time of not working. Leakage of power.

Remark : We recommend to do not disconnect power to the plug, even when stove is not used (holidays or summer). If the stove is plugged in, circulator will run from time to time to avoid limestone sediment.

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What are the events showing the inappropriate working of the circulator? High temperature of the water in stove. Hot water missing on the system.

Remark: After a long time of not use circulator may be block. If necessary make it run manually through the screw at the back of the circulator itself.

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Pressure transducer

It controls electronically the pressure of water in the stove included from 0,3 – 2,0 bar.

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What is going on if the transducer does not work?

Wrong reading of the pressure in the stove. Display shows alarm: “PRESS H2O”.

What are the main causes of breakage? Too high pressure in the stove during first filling of water in the system. Leakage, or wrong power at the heads of the transducer due to a malfunctioning of the electronic board.

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What are the events showing the inappropriate working of the transducer?

Tension lower than 5V at the heads of the transducer (possible malfunctioning of the electronic board). The pressure detected on the display is not constant and keeps changing. The pressure detected is different to the one shown by other measurers.

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Safety thermostat pellet

It’s a safety thermostat detecting temperature of pellet tank.

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What is going on if the safety thermostat does not work?

The stove doesn’t turn on. Display shows alarm: “HOT PELL”. Gearmotor for pellet feeding has no power.

What are the main causes of breakage? Broken or damaged capillary. Excessive strains (often activated reset).

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What are the events showing the inappropriate working of the thermostat?

Leakage of power, and consequent blinking of the display. No power at the gearmotor for pellet feeding.

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Safety thermostat water

It’s a safety thermostat detecting temperature of water inside the

stove.

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What is going on if the safety thermostat does not work?

The stove doesn’t turn on. Display shows alarm: “HOT H2O”. Gearmotor for pellet feeding has no power.

What are the main causes of breakage? Broken or damaged capillary. Excessive strains (often activated reset).

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What are the events showing the inappropriate working of the thermostat? Leakage of power, and consequent blinking of the display. No power at the gearmotor for pellet feeding.

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Primary air valve

It’s present only on 2-Fire models, for wood combustion chamber. It opens and closes making the combustion of wood modulate.

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What is going on if the air valve does not work?

Impossible to light wood. No air for combustion available.

What are the main causes of breakage ? Power cable broken or damaged. Leakage of power. Tension transformer 220 – 24 Volt not working.

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What are the events showing the inappropriate working of the air valve? Impossible to light wood. No modulation of the wood combustion chamber.

Remark. Insert low quantity of wood if water temperature is close to the set.Lighting wood chamber when water is already on temperature due to previous pellet burning, the valve is almost closed.

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Fast discharging safety valve

It detects temperature of water inside the stove.It is present only on 2-fire models.

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What is going on if the safety discharging valve does not work?

Temperature of the water can go over 110° C. Safety pressure bar ( 3 bar) opens.

What are the main causes of breakage ? Broken or damaged capillary.

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What are the events showing the inappropriate working of the safety discharging valve? Continuous opening of safety pressure valve (3 bar).

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Air vent valve

The air present in the stove and in the system automatically goes out through the air vent valve.

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What is going on if the vent valve does not work? The stove can go on over temperature. Display shows alarm: “ SIC OFF”.

Ex. High temperature of the stove, water outlet pipe cold, circulator blocked by the air inside stove or system.

What are the main causes of breakage? Presence of limestone due to a long time of not working.

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What are the events showing the inappropriate working of the air vent valve?

Over temperature of the water in the stove. High “bubble” noise during circulation of hot water.

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Automatic filling safety valve

It’s present only on 2-fire models.The filling valve keeps constant the

pressure in the stove. 

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What is going on if the filling valve does not work?

Display shows alarm: “PRESS H2O”.

What are the main causes of breakage? Presence of limestone due to a long time of not working.

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What are the events showing the inappropriate working of the air filling valve? Improper measurement of the valve. Gradual loss of temperature of the heating elements.

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Expansion Vase

It’s a tank used to compensate the variation of the volume of the water due to the rise of the temperature.

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What is going on if the expansion vase does not work?

It’s impossible to compensate the rise of the volume of the water. Most shown alarm on the display: ”PRESS H20”.

What are the main causes of breakage? Presence of limestone due to a long time of not working.

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What are the events showing the inappropriate working of the air expansion vase? The possible loss of water. Unusual rise of the pressure inside the stove.

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Pocket Troubleshooting

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Pocket TroubleshootingDisplay

D1Display D2 Nature of the problem What to do

ALARM SOND H2O Defective water sensorWater sensor without power

Connect a new water sensor to the electronic board and make sure alarm should be off. If alarm is still on, check electronic board.

ALARM HOT TEMP Smoke temperature is higher than 280° C Check temperature at cold stove. Connect a new smoke sensor and make sure temperature is not equals to previous one. If it’s so, replace electronic board.

ALARM SOND FUMI Defective smoke sensorSmoke sensor is not connected to electronic board.

Check temperature at cold stove. Connect a new smoke sensor and make sure temperature is not equals to previous one. If it’s so, replace electronic board.

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Display D1

Display D2

Nature of the problem What to do

ALARM NO FIRE Impossible to turn on the stoveLacks of pellet on the tankWater on over temperature

Check ignition, and if it’s the case replace it. Check also proper working of smoke sensor.

ALARM NO WOOD

Lacks of pellet on the tankWear electronic ignitionGearmotor blocked or defective

Check proper working of gearmotor, ignition and smoke sensor.

ALARM NO DEP Ash drawer openChimney dirty or blockedDefective depressorWater on over temperature

Check smoke fan, tubes and chimney. Rare check depressor as last.

ALARM HOT PELL Hot temperature of the pellet tank Check pellet tank and reset safety thermostat at the back of the stove.

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Display D1 Display D2 Nature of the problem What to do

ALARM PUL BRACNO FIRE

Over load of pellet in fire potFire pot not well positioned Fail switch on

Check fire pot position.Check proper working of ignition and smoke sensor. Adjust speed of smoke fan to perfect combustion.

ALARM NO RETE Black out or no power supply for longer than 1 minuteSwitch off of the stove through the rear main switch

Reset electronic board as follows: press “set” to “ut 04”, than “ f 1” and confirm pressing “set” button. Press once the “on/off” button and than keep it press for 2 seconds.

ALARM PRESS H2O High pressure in the stoveLow pressure in the stove

Check pressure on the display by pressing button 2, eventually check pressure on external measurer. If there is difference between external measurer and value on the display, replace pressure transducer. Check hot drinking water group if present, with closed circuit pressure must be constant.

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Display D1 Display D2 Nature of the problem What to do

ALARM SIC OFF High temperature of the waterBlocked circulator

The stove is on over temperature. Reset safety thermostat at the back. Check circulator, if blocked manually restart it. Check system to be sure there is no closing of the circuit. Check the display, led with the sun shouldn’t be on or blinking. If alarm is still present replace safty thermostat.

ALARM HOT H2O Over temperature of the water in the stoveCirculator blocked

If the alarm is shown at cold stove, check water sensor and the connection to the electronic board. If alarm is shown after over temperature refer to “ SIC OFF ” alarm.

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The End