FAGOR HVG 10/11, HVG 10/21, HVG 2-10/11, HVG 20/11, HVG 20/21, HVG 2-20/11, HCG 6/11, HCG 10/11, HCG 10/21, HCG 2-10/11, HCG 20/11, HCG 20/21, HCG 2-20/11 Gas Oven Technical Manual

Below you will find brief product information for Gas Oven HVG 10/11, Gas Oven HVG 10/21, Gas Oven HVG 2-10/11, Gas Oven HVG 20/11, Gas Oven HVG 20/21, Gas Oven HVG 2-20/11, Gas Oven HCG 6/11, Gas Oven HCG 10/11, Gas Oven HCG 10/21, Gas Oven HCG 2-10/11, Gas Oven HCG 20/11, Gas Oven HCG 20/21, Gas Oven HCG 2-20/11. These ovens feature convection and steam modes for versatile cooking, offering a range of temperatures and cooking functions. They come with a timer and various settings, including core temperature control for precise cooking. The ovens are designed for professional use and come equipped with safety features such as a safety thermostat and a differential grounding shunt device. For optimal performance, it is recommended to connect the oven to a soft water supply with a pressure between 0.5 and 8 Kg/cm².

PDF

Document

FAGOR

Industrial S.Coop.

TECHNICAL MANUAL

GAS OVENS

HVG and HCG

NOVEMBER 2001

No. Description

1 Models and dimensions

2 Characteristics

3 Location

4 Installation

Electrical

Water inlet

INDEX

Drain

Gas inlet

Exhaust gas outlet

Transformation to different gases

5 Control panel

6 Functional diagrams

7 Figures

8 Electrical and assembly diagrams

9 Preventive maintenance

10 Anomalies

11 Parameters and regulations

12 Recommended parts

47 page

1 MODELS AND DIMENSIONS

fig 1 fig 2

fig 3

fig 4 fig 5

A.- Soft water inlet RG ¾”.

B.- General drain RG 1”.

C.- Electrical supply inlet connector.

D.- Drain cleaning plug.

E.- Gas inlet RG ¾”. fig 6

2 CHARACTERISTICS

MODEL

EXTERNAL

DIMENSIONS mm

Width X

Depth Y

Height without chimney W

Height with chimney Z

Width U

Depth V

Depth Gas R

Net weight (Kg.)

Electrical power Kw

Supply voltage

Gas power

220-240V

50-60Hz

Hose section

Fuse Int.

General

Differential

Device

Kcal/h (Hs)

BTU (Hs)

Kw. (Hi)

Kg/h (29mb)Butane (G-30)

Nominal consumption

Performance %

Kg./h (37 mb) Propane (G-31) m³./h (20 mb) Natural gas (G-20) m³./h (25 mb) Natural gas (G-25) m³./h (8 mb) City gas (G-110) m³./h (8 mb) City gas (G-130) m³./h (8 mb) City gas (G-150)

Hot air

Steam (%)

Max. no. trays

GN 1-1

GN 2-1

Maximum load weight in kg

Approximate water consumption (litres/hour)

Water inlet pressure Kg/cm

HVG-10/11

1060

965

925

1290

650

535

600

210

0.4Kw

HVG-10/21

HVG-2-10/11

1180

1170

925

1290

770

740

800

275

0.4Kw

HVG-20/11

1060

965

1635

2000

650

535

600

320

0.6Kw

HVG-20/21

HVG-2-20/11

1180

1270

1635

2000

770

740

900

430

0.6Kw

2x1,5+T

34,400

136,500

40,000

3,330

3,280

4,235

4,555

000

10ª

30Ma

000

100

39,560

157,000

46,000

3,830

3,770

4,870

5,170

000

0.5---8

000

100

44,720

177,500

52,000

4,330

4,265

5,500

5,665

000

200

72,240

286,700

84,000

6,990

6,890

8,890

9,840

000

MODEL

EXTERNAL

DIMENSIONS mm

Width X

Depth Y

Height without chimney W

Height with chimney Z

Width U

Depth V

Depth Gas R

Depth chimney S

Width chimney T

Net weight (Kg.)

Electrical power Kw

Supply voltage

Gas Power

Nominal consumption

220-240V

50-60Hz

Hose Section

Fuse Int.

General

Kcal/h (Hs)

BTU (Hs)

Differential

Device

Kw. (Hi)

Kg/h (29mb)Butane (G-30)

Kg./h (37 mb) Propane (G-31) m³./h (20 mb) Natural Gas (G-20) m³./h (25 mb) Natural Gas (G-25) m³./h (8 mb) City Gas (G-110) m. ³/h (8 mb) City Gas (G-130) m. ³/h (8 mb) City Gas (G-150)

Performance %

Max. no. trays

Hot air

Steam (%)

GN 1-1

GN 2-1

Maximum load weight in kg

Approximate water consumption (litres/hour)

Water inlet pressure Kg/cm

000

12,000

47,800

14,000

1,165

1,150

1,480

1,355

000

HCG-6/11 HCG-10/11

900

965

695

1060

650

535

720

380

370

135

0.40Kw

900

965

925

1290

650

535

720

380

370

165

0.40Kw

HCG-10/21

HCG-2-10/11

HCG-20/11

HCG-20/21

HCG-2-20/11

1020

1170

925

1290

770

740

920

450

900

965

1635

2000

650

535

720

380

1020

1170

1635

2000

770

740

920

450

430

225

370

275

430

380

0.40Kw 0.60Kw 0.60Kw

2x1.5+T

10A

16,340

64,850

19,000

1,580

1,560

2,010

1,970

000

30mA

000

100

0.5---8

21,500

85,300

25,000

2,080

2,050

2,645

2,050

000

26,660 36,120

105,800 143,300

31,000

2,580

2,540

3,280

2,540

000

100

42,000

3,495

3,445

4,435

4,310

000

200

3 LOCATION

It is recommendable to install the extractor hood to expel fumes to the exterior

(see fig 7)

On the left- hand side, there must be a minimum space of 50 cm between the oven and the next appliance HVG. (see fig 8)

Likewise, the over must not be affected by the steam or heat from other appliances. The rear panel must be in place at all times. fig 7 fig 8

4 INSTALLATION

Before proceeding to install the equipment, make sure that the type of gas set for the oven coincides with the gas supplied in the distribution network.

4.1 Electrical Connection.

−

The mains voltage must be the one indicated on the characteristics plate.

−

REMOVE THE LEFT-HAND SIDE PANEL in HVG models.

−

EXTRACT CONTROL PANEL in HCG models

−

Use a polychloroprene cable or another with the same characteristics (HO5RN-F).

−

Place a general switch independent of the appliance in the mains outlet with a distance between contacts equal to or greater than 3 mm.

−

A differential grounding shunt device must be installed.

−

The appliance must be connected to ground.

−

Access the electrical connections strip and fix the cable to the stuffing box, C (see ).

−

When installing a number of appliances in a line, these must be connected together to ground.

4.2 Water inlet.

−

Only connect drinking water to the appliance.

−

Make the connection to the water mains at point A (see . ), using the hose supplied.

−

The water inlet pressure must be between 0.5 and 8 Kg/cm².

−

Install a filter and stop cock at the water inlet.

−

For water with a hardness of over 10ºF, a water softening unit is required..

−

Conductivity of the water 50-2000

S, lower conductivity optional.

Minimum concentration of chlorides Cl under 150 mg./litres.

N the case of values of over 2000

S or when exceeding the limit value for chloride, place a hydrogen ion exchanger (see fig 9)

−

Redox potential 300 mV, (alternatively chlorine content (CL2) lower than 0,1 mg/litre).

In the case of values of over 300 mV Redox potential, place an activated carbon filter

(observe the filter maintenance intervals)

Sedimentation filter Un (0,08 mm) when the impurities in drinking water are high.

fig 9

4.3 Drain.

The connector hose must be steam resistant (100ºC).

4.4 Gas inlet.

The connection will be made with a hose fitted with a ½” and ¾” connection in HVG models.

A stop cock and pressure regulator must be installed between the appliance and the gas mains.

4.5 Exhaust fume outlet

The oven must be installed under an extractor hood.(see fig 7)

4.6 Adaptation to different gases.

Gas ovens cannot be adapted to different gases

5 CONTROL PANEL

HVG-10/11

HVG-10/21

HVG-2.10/11

HVG-20/11

HVG-20/21

1.- Chamber heating indicator.

2.- Oven ON indicator .

3.- Steam generator heating indicator.

4.- Mode selector.

5.- Oven OFF position .

6.- Steam mode position

7.- Low temp erature steam mode position.

8.- Regeneration mode position.

9.- Mixed mode position.

10.- Hot air mode position.

11.- Temperature selector .

12.- Chamber temperature indicator.

13.- Time selector.

14.- Variable time position 0-120º.

(AUTOMATIC) fig 10

15.- Indefinite time fixed position (MANUAL).

16.- Real temperature at probe core.

17.- Core temperature selector.

18.- Button to increase probe core

selection.

19.- Button to reduce probe core

selection.

20.- Probe core function selector.

21.- Chamber burner ignition reset

button.

22.- Generator burner ignition reset

button.

23.- Lime indicator.

24.- Machine out of service indicator.

HCG- 6/11

HCG-10/11

HCG-10/21

HCG-2.10/11

HCG-20/11

HCG-20/21 fig 11

1.- Chamber heating indicator.

2.- Oven ON indicator.

3.- Chamber water inlet indicator.

4.- General switch.

5.- OFF position (OFF).

6.- ON position (ON).

7.- Temperature selector.

8.- Real chamber temperature.

9.- Time selector.

10.- Variable time position 0-120’ (AUTOMATIC).

11.- Indefinite time fixed position (MANUAL).

12.- Humidifier button.

13.- Ignition system reset button.

6 FUNCTIONAL DIAGRAM (HVG)

fig 12

1- Steam gas valve

2- Convection gas valve

3- Gas duct from steam generator.

4 – Chamber gas duct.

5- Gas duct to main cover.

6 -Mixer.

7 -Mixer coupling

8 – Blower fan.

9 –Main cover.

10- Chamber burner.

11 – Generator burner.

12 –Chamber heat exchanger.

13-Complete fume manifold.

14 –Complete steam manifold.

15 –Complete chimney.

Description of the most important components in the

Convection Ignition System (Forced air burner):

VC: Premix centrifugal fan (air blower or supplier) . (fig 28)

This is an air supplier motor for combustion.

-VF: Frequency inverter. (fig-25)

This is the electronics that changes and controls the speed of the fan motor or blower by means of a voltage variation. We use this to define the t wo speeds at which the blower fan must work. Ignition speed

S1 and maximum power speed S2.(fig 26)

-GV1-GV2:Convection gas valve.

This is a Honeywell modulating gas solenoid valve. (fig 24) This modulates the gas opening in accordance with the speed of t he blower fan. Valve connected by means of a rubber tube to the blower fan by means of which it is possible to modulate the gas opening in accordance with the air pressure. (fig

23)

Valves are adjusted for each size of oven or type of gas in the factory o nly.

CEC: Convection ignition control

This is the electronics that carries out the ignition sequence (spark train - gas valve opening - flame detection) (fig 15-16 )

Air washer: Washer that defines the amount of correct air for the furnace. (fig 29 )

Mixer: This is the air-gas mixer for combustion. (fig 28 )

BE: This is the spark plug that generates the spark for ignition.(fig 22)

BD: This is the ionisation flame detector. (fig 22)

TC: Chamber thermostat 30-270ºC

This is the electronic thermostat t hat controls the chamber temperature (fig. 56). This also has a contact fixed at 100ºC called T100.

Description of very important components in the

Steam Ignition System (Atmospheric burner):

GV3-GV4: Steam gas valve.

Steam gas solenoid valve SIT 830.(fig 23)

CEV: Steam ignition control

This is the electronics that carries out the ignition sequence (spark - gas valve opening- flame detection)

(fig 15-16)

CN: Water level control.

Electronics that control the generator water level. (fig 37 )

BE: This is the spark plug that generates the spark for ignition.(fig 31)

BD: This is the ionisation flame detector.

RE1: Energy regulator.(fig 34)

Electro-mechanical component for controlling electrical contacts.

Note: In steam mode, the blower fan (VC) always works at ignition speed.

Blower fan sequence VC

Correct ignition.

Blower fan sequence VC

Incorrect ignition.

fig 13

Ignition control (CEC and CEV)

fig 14 fig 15

CONNECTION

ACRONYMS PR

FUNCTIONS RESET

BUTTON

RESET

LIGHT

GAS

VALVE fig 16

IGNITION SEQUENCE

SPARK

PLUG

DII

FLAME

DETECTOR

LII

HEATING

INDICATION

LAMP

FUNCTIONAL DIAGRAM

HVG and HCG (CONVECTION MODE)

HVG CONVECTION MODE (30-270ºC) fig 17

CONVECTION MODE 30º -270ºC

Convection burner is working.

Chimney open. fig 18

FUNCTIONAL DIAGRAM

HVG (STEAM MODE 100º C-ADJUSTABLE STEAM MODE

30-100º C) fig 19

HVG STEAM MODES 100ºC- ADJUSTABLE STEAM 30-100ºC

STEAM MODES 100ºC-ADJUSTABLE STEAM fig 20

Convection burner is working.

Chimney closed.

HVG MIXED-REFRIGERATION MODES 30º -270ºC fig 21

REGENERATION MODE:

- Initial phase: Both burners simultaneously – chimney open.

-Temperature maintenance: Burners cycle alternatively. 1 st

Convection –chimney open and 2 nd

Steam- chimney closed. (Steam cycles in turn with the RE1 energy regulator 15 sec. ON and 15sec.

OFF)

MIXED MODE:

-Initial phase: Convection burner – chimney open.

-Temperature maintenance: Burners cycle . 1 st

Convection –chimney open and 2 nd

Steam- chimney closed. (Steam cycles in turn with the RE1 energy regulator 15 sec. ON and 15sec. OFF)

7 FIGURES

Convection flame detector spark plug

Convection ignition spark plug

Convection burner fig 22

DETAILED VIEW OF BURNER, IGNITION SPARK PLUG AND FLAME DETECTOR

Gas Valve SIT 830

Steam

GV3-GV4.

Convection Gas Valve

Adjusted according to:

-Oven size

-Type of gas fig 23

fig 25 fig 26

VR 4605-VA 1041B Valve (Convection Gas Valve)

P.outlet fig 24

Frequency inverter (T-083002)

P.inlet

Air/gas regulation in ignition.

(maximum speed)

Air/gas regulation in ignition.

(Offset )

((+) clockwise)

Ignition speed switches

Maximum operating speed switches

Detailed view of frequency inverter switches

DETAILED VIEW OF GAS AIR MIXTURE IN THE CONVECTION IGNITION SYSTEM AT REAR

OF OVEN

BURNER fig 27

DETAILED VIEW OF BLOWER, MIXER AND BURNER SUPPORT

AIR WASHER

VC= EBM fan

50/60Hz

MIXER

Diameter 5mm mm fig 28

DETAILED VIEW OF WASHER fig 29

Steam burner fig 30 fig 31

Detailed view of steam burner fig 32

Detail of chimney seal mechanism fig 33

Detailed view of chimney seal

RE1 Energy regulator fig 34

TV Steam thermostat fig 35 fig 36

TCN Condensation thermostat

24 fig 37

CN Level control

HVG (SIDE VIEW OF ELECTRICAL COMPONENTS)

Electrical wiring connection inlet fig 38

Gas intake ¾”

HVG (REAR VIEW)

Soft water connection ¾” fig 39

8 ELECTRICAL DIAGRAMS AND ASSEMBLY DIAGRAMS

Acronyms

VF:

Frequency inverter

VF2

:

CONTACT INDICATING THAT THE VC BLOWER FAN IS IN OPERATION.

VF1:

CONTACT THAT CLOSES WHEN:

-TC

= ON

-BLOWER SPEED =

Slow blower ignition speed.

CEC:

Convection ignition control

CEV:

Steam ignition control

RE1:

Energy regulator15sec=ON / 15sec =OFF

fig 40

fig 41

fig 42

fig 43

9 PREVENTIVE MAINTENANCE

In order to guarantee the safe, cost-effective and non contaminating operation of your oven, periodic maintenance is essential. This allows you to keep it in good condition and prolongs its service life. Maintenance must be done by AUTHORISED TECHNICAL PERSONNEL, at least once a year. Servicing is of vital importance as the wear or damage of parts are gradual processes and so if a malfunction can be detected in time, the costs involved are low and the benefits with regard to safety and cost-effectiveness can be very high.

The one-year interval between servicing has been calculated based on an average use of 4 hours per day. If the unit is used intensively, for example in a catering company, serving must be done at shorter intervals.

1. CONVECTION SYSTEM

1.1 Ignition spark plug

Release and extract the combustion chamber.

Check its status and connections visually.

Clean the detector with “Scotch”

Set the oven to convection mode to activate the spark plug.

Check for correct ignition

1.2 Flame detector

Release and extract the combustion chamber.

Check its status and connections visually.

Clean the electrode with “Scotch”

1.3 Mains gas pressure

Check at appliance inlet.

Measure when the appliance is in operation.

(Measurements may be made at the gas valve inlet)

1.4 Gas circuit water-tightness

Check.

1.5 Heat exchanger

Check visually that it is in good condition.

Check the status of the graphite seals.

Replace if damaged.

2. STEAM SYSTEM

2.1 Lime scale indicator lamps.

If any of these light up, remove scale in oven as follows:

1 Turn off the appliance.

2 Turn the water drainage lever "B". When empty, return the lever to the original position.

3 Extract plug A and pour in deliming liquid (14 litres) .

4 After 6 hours have elapsed, empty the steam generator by turning lever B.

5 Flush the deliming liquid inlet with water. Fit plug A. fig 44

6 Close lever B and put oven into operation in the steam mode at low temperature with the thermostat selector at 0 for 10 minutes.

7 Flush the cooking chamber using the shower fitting. Put the oven into operation in steam mode for 10 minutes.

8 Drain the steam generator on a daily basis.

2.2 Burner

Check that the burner turns on and operates correctly. fig 45

If there is no ignition spark, change the spark plug, check the cable and connections.

If the problem persists, change the electronic ignition box.

2.3 Boiler

Check that there are no drips.

If there are, change the boiler. In this case, also change the graphite seal that joins the boiler to the chamber.

2.4 Steam condensation thermostat

Make sure that this is working.

2.5 Boiler drainage

Check that the valve and drain are working correctly.

2.6 Water level

Check that this is working correctly and that water does not overflow.

3 OVEN DOOR

3.5 Seal

If this is cracked or damaged, replace.

3.6 Steam leaks

If there are any steam leaks, adjust the hinge and hooks

3.7 Door alignment

Adjust if necessary.

3.8 Handle

If this is loose, tighten or replace.

3.9 Drain

Check and clean if necessary.

3.10 Light

Replace lamp if necessary.

4 CHIMNEY

4.5 Seal

Clean surfaces and grease pins.

If there are any steam leaks, adjust the mechanism.

Change O-ring Q307067

5 CONTROL PANEL

5.5 Core probe

Check that this is working correctly. (To do this, start the oven in steam mode with the probe inside and wait until it reaches 98ºC)

Replace if damaged or adjust if loose.

5.6 Timer

Check status.

5.7 Electronic thermostat (convection)

Check visually and functionally in convection mode at 270ºC. Replace if this is not working correctly.

6 MISCELLANEOUS

6.5 Cooling fans

Check that these work.

6.6 Miscellaneous

Make a visual check of the entire oven.

10 TROUBLE SHOOTING

EFFECT

1.-Oven does not operate in any mode.

Green lamp L1 does not come on.

Electronic thermostat display on.

2.-Convection burner does not turn on

Green lamp L1 on.

Electronic thermostat display on.

Turbine motor working.

Convection lamp L2 does not come on.

Convection reset button L3 off.

3.-Convection burner does not ignite.

Green lamp L1 on.

Electronic thermostat display on.

Turbine motor working.

Convection lamp L2 does not come on.

Check no. of pluses of LED D21 of frequency inverter

(three impulse sequence).

4 – Convection burner does not ignite.

Green lamp L1 on.

Convection lamp L2 comes on a moment and then turns off.

Convection reset button L3 on.

Check no. of pluses of LED D21 of frequency inverter

(three impulse sequence).

CAUSE

1.1.Door switch IP

1.2.Motor thermal switch FM

2.1.Chamber thermostat TC

2.2.Safety thermostat TSC

3.1. Faulty inverter VF or blower VC.

3.1.Connect blower air/convection gas valve closed.

3.2.Blower connector rubber tube/convection gas valve broken.

3.3.False contact in ignition control. CEC

3.4 Faulty ignition control. CEC

3.5.Little or no gas

3.6.Flame detection failure

3.7.Gas flow ignited in low convection valve.

3.8.Convection gas valve.

3.9.Spark train failure.

5.-Noise during ignition

6.- Ignition occurs suddenly with a slight explosion

5.1.Excessive gas during ignition

5.2.Burner does not correspond to model

5.3.Type of gas does not correspond to model

5.4.Wrong frequency inverter switches.

5.5.Gas valve does not correspond to type of gas.

6.1. Wrong frequency inverter switches

6.2 Type of gas does not correspond to model

6.3. Gas valve does not correspond to type of gas

ACTION

1.1.Check – change or adjust

1.2.Check motor thermal switch wires (grey motor connection cables) or change motor.

2.1.Check contact TC

2.2. Check contact TSC

3.1 Change.

3.1.Check and drill if it is a spare.

3.2.Check whether this is broken or blocked and replace

3.3.Check detection wiring

3.4.Change

3.5.Check with pressure gauge in gas valve

3.6.Check detector-burner position (5-6 mm) and connections or change detector.

3.7.Check dynamic pressure and increase.

3.8.Change gas valve.

3.9. Check position of burner spark plug (3-4 mm) and connections

5.1.Check valve code corresponding to gas and model

5.2.Check pressures in gas valve in burner

5.3.Check pressures and model

5.4.Check and correct (Increase ignition speed).

5.5 Check and correct

6.1. Check and correct ignition speed.

6.2.Check pressures and model

6.3. Check and correct

7.- Oven operates for a time and then stops and starts again.

8.-Does not generate any steam.

Steam lamp L4 off

9.-Does not generate steam (but tries to ignite)

Green lamp L1 on.

Water level control not connected to power supply.

10.-Does not generate enough steam

Steam gas valve GV5-GV4 active

7.1.Motor thermal switch FM

8.1.There is no water in mains or water valve V1 is faulty.

8.2.Steam generator drainage valve open.

8.3.Level electrodes coated with lime.

8.4.Faulty water level control CN

9.1.Frequency inverter failure VF

9.2.Faulty blower

10.1Chimney open

10.2.Chamber probe broken

10.3.Thermostat T100 loose

11.1.Lime deposits on steam generator

7.1.Check that the three phases are connected correctly to motor.

7.1.Check whether there is dampness on external surfaces of motor

7.1.Check that the turbine turns in the correct direction

7.1.Change motor

8.1. Check and correct

8.2

Correct

8.3.Clean

8.4. Check and correct

9.1. Check and correct

9.2. Check and correct

10.1. Check and correct

10.2.Change probe

10.3.Adjust thermostat or change thermostat

11.1.Clean generator and reset thermostat TSV 11.-Does not generate any steam

Lamp L4 off

Lamp L6 on

Lamp L7 on

12.-Generates steam

Lamp L7 on

12.1. Lime deposits on steam generator 12.1. Clean generator and reset thermostat TDC.

NOTE: If lamps L3 are on (locked in convection mode ) or L5 (locked in steam mode ignition) CORRECT AND RESET.

Frequency inverter failure modes T-083002:

Single pulse of light

in red LED D21(fig 47).

Effect: Oven does not ignite. Reset button off.

Possible causes:

- 1.1 Signal cable between frequency inverter and fan (T-083000) is broken.

- (Check connector wires J2 of frequency inverter) connection 1-3

- 1.2 Broken fan card.

- 1.3 Broken frequency inverter

Two pulses of light

in red LED D21. (fig 47)

Effect: Oven does not ignite. No flame detection. Reset button on.

Possible causes:

2.1 There is not gas supply.

- 2.2 Flame detector wires broken or with loose contacts .

- 2.3 Faulty INECO combustion control box.

2.4 Faulty spark plug wire or loose contact.

2.5 Spark plug not at correct distance to burner (3-4mm)

2.6 Faulty convection gas valve.

2.7 Air leak in rubber tube from blower to gas valve.

Three pulses of light

in red LED D21 (fig 47)

Effect: Oven does not ignite. Reset button off.

Possible causes:

- 3.1 Speed detector cable between frequency inverter and fan is broken.

- (Check cables on connector J2 of frequency inverter) Connection 2-4

- 3.2 Faulty fan card.

- 3.3 Faulty frequency inverter.

- 3.4 Blower does not operate.

Four pulses of light

on red LED D21. (fig 47)

Effect: Over operates. The oven reached temperature slowly because the blower does not reach the maximum speed.

Possible causes:

- 4.1 Blower does not work properly.

- 4.2 Frequency inverter does not work properly.

Five pulses of light

on red LED. D21 (fig 47)

Effect: The oven operates, but ignition is abrupt. The blower does not reach the minimum ignition speed.

Possible causes:

- 5.1 Blower does not work properly.

5.2 Frequency inverter does not work properly.

Continuous light

in red LED D21. (fig 47)

Effect: The oven does not ignite.

Possible causes:

- 6.1 Faulty ignition control, or broken internal ignition control fuse.

All LEDs off

. D21 (fig 47)

Possible causes:

7.1 Check fuse.

7.2 Faulty inverter.

Red LED

D21

Connector J2 fig 46

Failure modes on display of electronic chamber thermostat:

If the following message appears on the electronic thermostat display:

_ _ 0 Thermocouple or chamber probe cut off.

-Check connection between thermocouple and electronic thermostat

-Change chamber probe

_ _ 1 NTC open.

-Change electronic thermostat.

_ _ 2 Selector potentiometer 30-270ºC broken.

- Change electronic thermostat.

_ _ 3 Selector potentiometer 100ºC broken.

- Change electronic thermostat.

Failure modes in core probe thermostat display:

If the following message appears on the electronic thermostat display:

“_ _ _” Short-circuited core probe.

“EEE” Core probe cut or not connected.

11 PARAMETERS AND ADJUSTMENTS

The pressure values in ( mbar) are approximate. These are taken with an input pressure of 29 mbar Butane , 37 mbar Propane and 20 mbar Natural Gas

Burner ON

(V max)

Burner OFF

MODEL

HCG 6/11 B.P.

HCG 6/11 Prop. USA-60 Hz

HCG 6/11 B.P. Australia

HCG 6/11 G.N.

HCG 6/11 G.N. USA-60 Hz

HCG 6/11 G.N. Australia

HCG 10/11 B.P.

HCG 10/11 Prop. USA-60 Hz

HCG 10/11 B.P. Australia

HCG 10/11 G.N.

HCG 10/11 G.N. USA-60 Hz

HCG 10/11 G.N. Australia

HCG 10/21 B.P.

HCG 10/21 Prop. USA-60 Hz

HCG 10/21 B.P. Australia

HCG 10/21 G.N.

HCG 10/21 G.N. USA-60 Hz

HCG 10/21 G.N. Australia

V ignition S1 V maximum S2

Ø Air washer

Gas valve GV1-GV2 P out (mbar) P out (mbar)

Ve=1400 rpm

V=4500 rpm

V=5500 rpm

Ø14: T-085013

T-085010

T-085016

0:0,5

-0,8:-0,4

" "

Ve=2000 rpm V=5000 rpm

V=5500 rpm

T-085010

T-085011

T-085017

T-085011

Ve=2000 rpm

V=4000 rpm

V=5000 rpm

Ø18: T-115082

" " "

Ve=2500 rpm V=4500 rpm Ø20: T-115083

T-115097

T-115100

T-115097

T-115098

0,3:1,1

1,3:3

-0,8:-0´3

-0,9:0,1

Ve=2000 rpm V=5500 rpm

Ø18: T-115082

" V=6000 rpm "

" " "

Ve=2500 rpm V=6000 rpm

Ø20: T-115083

T-115101

T-115098

T-115097

T-115100

T-115097

T-115098

T-115101

T-115098

0,5:1,8

2:4

-0,9:-0,3

-0,8:0

MODELS

HVG 10/11 B.P.

HVG 10/11 Prop. USA-60 Hz

HVG 10/11 B.P. Australia

HVG 10/11 G.N.

HVG 10/11 G.N. USA-60 Hz

HVG 10/11 G.N. Australia

HVG 10/21 B.P.

HVG 10/21 Prop. USA-60 Hz

HVG 10/21 B.P. Australia

HVG 10/21 G.N.

HVG 10/21 G.N. USA-60 Hz

HVG 10/21 G.N. Australia

MODELS

HVG 20/11 B.P.

HVG 20/11 Prop. USA-60 Hz

HVG 20/11 B.P. Australia

HVG 20/11 G.N.

HVG 20/11 G.N. USA-60 Hz

HVG 20/11 G.N. Australia

HVG 20/21 B.P.

HVG 20/21 Prop. USA-60 Hz

HVG 20/21 B.P. Australia

HVG 20/21 G.N.

HVG 20/21 G.N. USA-60 Hz

HVG 20/21 G.N. Australia

V ignition S1 V maximum S2

Ve=2000 rpm V=4000 rpm

V=4500 rpm

Ve=3000 rpm V=4500 rpm

" "

Ve=2000 rpm V=5500 rpm

" V=6000 rpm

" "

Ve=3000 rpm V=5500 rpm

V=6000 rpm

Ø Air washer

Ø18: T-115082

Ø20: T-115083

Ø18: T-115082

Ø20: T-115083

V ignition S1 V maximum S2 Ø Air washer

Ve=3000 rpm V=6000 rpm

" "

Ø22: T-135035

" " "

Ve=3500 rpm V=6000 rpm

Ø26,3: T-135036

Steam generator Burner ON Burner OFF

Gas valve GV1-GV2 Nozzles. (Qty=12) P out (mbar)

T-115097 Z-955899

0,3:1,1

T-115100

T-115097

T-115098

T-115101

T-115098

T-115097

T-115100

Z-956104

1,3:3

Z-956109

Z-955899

0,5:1,8

T-115097

T-115098

T-115101

T-115098

Z-956104

2:4

Z-956109

Steam generator

P out (mbar)

-0,8:-0´3

-0,9:0,1

-0,9:-0,3

-0,8:0

Burner ON Burner OFF

P out (mbar) Gas valve GV1-GV2 Nozzles. (Qty.=12) P out (mbar)

T-135037

T-135040

T-135037

T-135039

T-135041

T-135039

Z-955899

Z-956104

Z-956109

fig 48

SPEED SELECTORS

S1-S2

OF FREQUENCY INVERTER :

0 0000

1 0001

2 0010

3 0011

4 0100

5 0101

6 0110

7 0111

800 r.p.m.

1000 r.p.m.

1200 r.p.m.

1400 r.p.m.

1600 r.p.m.

1800 r.p.m.

2000 r.p.m.

2200 r.p.m.

8 1000

9 1001

10 1010

11 1011

12 1100

13 1101

14 1110

15 1111

2500 r.p.m.

3000 r.p.m.

3500 r.p.m.

4000 r.p.m.

4500 r.p.m.

5000 r.p.m.

5500 r.p.m.

6000 r.p.m.

TCN: Steam condenser adjustment

fig 47

Thermostat stud position 82ºC

(Standard adjustment)

Thermostat stud position

For economising water

Thermostat stud position

In order not to waste water

Adjusting amount of steam in Mixed and Regeneration Mode.

The oven is adjusted for an optimum amount of steam, but if for any reason the user wants more, do the following:

1. Locate the energy regulator

RE 1

. this is regulated approximately to give

15 seconds of steam and 15 seconds without steam. Both in Mixed and

Regeneration.

2.Turn clockwise to increase amount of steam

Position of

RE 2

Energy

Regulating steam in:

Regeneration and mixed mode

Regulator

RE1

To obtain more steam, turn the pin clockwise fig 49 fig 50 fig 51

Adjusting I K-type core probe thermostat K.(red case)

K-type thermocouple (Nickel-chrome/Nickel- aluminium

) “Cr” probe type parameter in PSE

-Simultaneously activate core probe selector (1) and SET (2), holding SET down for approximately 4 seconds until “d1” appears on the display (3).(fig

53)

- With DOWN (5) move parameters until (3) “PSE” appears on display.

(fig 54)

- With “PSE” on display press SET again and hold down.

- With SET held down, press “UP” to choose “Cr” parameter on display for

K-type thermocouple. (fig 54)

Note: If, instead of “Cr” we select “Fe” this corresponds to the black J-type core thermostat (Iron – Costanta).

Core probe thermostat

fig 52 fig 53

Electronic chamber thermostat adjustment

/ ADJUSTMENT OF MAXIMUM STEAM TEMPERATURE (100º C).

Move

blue switch

1 to ON

. When the thermostat pin is turned the display must show 100. To adjust this value, turn potentiometer

(fig 55)

Once adjusted, set switch 1 to OFF position.

/ ADJUSTMENT OF MAXIMUM CONVECTION TEMPERATURE ( 30 – 270º C)

Mover

blue switch

2 to ON

. When the thermostat pin is turned the display must show a maximum temperature of 270º C. To adjust this value, turn potentiometer

(this value is adjustable).

Once adjusted, set switch 2 to OFF position.

/ ADJUSTMENT OF REAL TEMPERATURE INSIDE THE OVEN AND THE TEMPERATURE OF

THE ELECTRONIC THERMOSTAT DISPLAY.

Insert a calibrated thermostat in the oven and set the furnace to work in STEAM mode.

When it is seen that the oven is working at a stable temperature of 100º C with respect to the thermometer inside, the temperature cut off at 100º C in steam mode is done with the electronic thermostat. The adjustment of the temperature cut off at 100ºC and display is done with the potentiometer

with respect to the thermometer inside the oven.

NOTES

The adjustment of the electronic thermostat is carried out in accordance with the temperature reference indicated by the calibrated thermostat inserted indise the oven in order to control the real temperature .

Electronic Thermostat (R743013)

Blue switch

P5 fig 54

Parameters for distance between Ignition Spark Plug . BD Flame detector with convection burner

Convection burner

The burner seal must not coincide with the BE and

BD position fig 55

12 RECOMMENDED SPARES

T083000

T143000

Z952201

T085010

T085011

T115097

T115098

T135037

T135039

T155018

T133004

T113007

T133000

T085710

T115710

T145712

Z955801

Z955802

Z955803

1100002811

T115037

LIST OF RECOMMENDED SPARES IN HVG AND HCG CONVECTION OVENS

Z953004

S333001

R343072

R253049

T113030

Combustion control

Energy regulator

Level detector

Motor 230-240V 50/60Hz

Function selector switch

R743013

T113010

Z100522

Z200506

T083002

T085711

T115711

T115712

T135704

T135705

R725079

Q307067

Electronic thermostat

50/60Hz chimney motor

Door magnetic switch

Door magnet.

Frequency inverter

Convection ignition electrode (6/11)

Convection ignition electrode (10/11, 10/21 )

Convection detection electrode (6/11 ,10/11, 10/21 )

Convection ignition electrode (20/11,20/21)

Convection detection electrode (20/11,20/21)

Electrode seal.

O-ring

Fan EBM (6/11, 10/11, 10/21, 20/11) 50/60Hz

Fan EBM (20/21) 50/60Hz

Valve SIT 830 50Hz

Adjusted convection gas valve BP (6/11) 50Hz

Adjusted convection gas valve GN (6/11) 50Hz

Adjusted convection gas valve BP (10/11 y 10/21) 50Hz

Adjusted convection gas valve GN (10/11 y 10/21) 50Hz

Adjusted convection gas valve BP (20/11) 50Hz

Adjusted convection gas valve GN (20/11) 50Hz

Adjusted convection gas valve BP (20/21) 50Hz

Adjusted convection gas valve GN (20/21) 50Hz

Digital thermostat TIPO K

Core probe unit TIPO K (10/11 y10/21)

Core probe unit TIPO K (20/11 y20/21)

Convection burner (6/11)

Convection burner (10/11 y 10/21)

Convection burner (20/11 20/21)

Steam burner

Steam ignition electrode

Steam detection electrode

Complete steam generator KIT HVG (10/11, 10/21, 20/11)

Steam inlet seal

ANEXO: TRANSFORMACIÓN A DIFERENTES GASES

PROCESO TRANSFORMACIÓN TIPO GAS

IMPORTANTE:

Para transformar el tipo de gas del horno se requiere cambiar y modificar las siguientes piezas

-1/ Válvula gas convección GV1-GV2.

-2/ Arandela de aire.

-3/ Posicionar los interruptores S1 y S2 del variador de frecuencia VF según indicaciones tabla de parámetros.

Además: Para modelos vapor HVGs

-4/ Inyectores de gas del generador vapor (solo en modelos HVG).

(

VER TABLA CORRESPONDIENTE A PARÁMETROS y REGULACIONES POR

MODELO

)

PIEZAS A CAMBIAR PARA CONVERSION A DIFERENTES GASES

Cambiar arandela aire

(2)

Modificar posición en S1 Y

S2 los interruptores del variador de frecuencia VF

(3)

Cambiar válvula gas convección

(1)GV1-GV2

Cambiar inyectores gas quemador del generador vapor (4)

1º Cambiar válvula de gas convección.

Válvula Gas Vapor

GV3-GV4.

2º Cambiar arandela aire según indica detalle.

UBICACION DE LA

ARANDELA DE AIRE

Válvula Gas Convección GV1-

GV2

Regulada según:

-Tamaño horno

-Tipo de gas

ARANDELA DE AIRE

3º Posicionar los interruptores del variador de frecuencia según modelo corresponda tanto en S1 y

S2 según tablas.

Variador encendido HVG (T-083002)

Conmutadores velocidad encendido S1

Conmutadores velocidad régimen S2

4º Cambiar inyectores gas quemador del generador de vapor (Solo HVG)

Detalle de los conmutadores del variador de frecuencia .

Posición ON (arriba)=1

Posición (abajo)=0

Quemador vapor Detalle quemador vapor

Inyectores vapor

PARAMETROS Y REGULACIONES

Los valores de presión en ( mbar) son orientativos. Estos estan tomados con una presión de entrada de 29 mbar Butano , 37 mbar Propano y 20 mbar Gas Natural

Quemador ON

(V max)

Quemador OFF

MODELO

HCG 6/11 B.P.

Vencendido S1 Vmáxima S2 Ø Arandela aire

Ve=1400 rpm V=4500 rpm

Ø14: T-085013

Válvula de gas GV1-GV2

T-085010

P out (mbar)

-0,8:-0,4

HCG 6/11 Prop. USA-60 Hz

HCG 6/11 B.P. Australia

HCG 6/11 G.N.

HCG 6/11 G.N. USA-60 Hz

HCG 6/11 G.N. Australia

HCG 10/11 B.P.

HCG 10/11 Prop. USA-60 Hz

HCG 10/11 B.P. Australia

HCG 10/11 G.N.

HCG 10/11 G.N. USA-60 Hz

HCG 10/11 G.N. Australia

HCG 10/21 B.P.

HCG 10/21 Prop. USA-60 Hz

HCG 10/21 B.P. Australia

HCG 10/21 G.N.

HCG 10/21 G.N. USA-60 Hz

HCG 10/21 G.N. Australia

Ve=2000 rpm

Ve=2500 rpm

Ve=2000 rpm

Ve=2500 rpm

V=5500 rpm

V=5000 rpm

V=5500 rpm

V=4000 rpm

V=5000 rpm

V=4500 rpm

V=5500 rpm

V=6000 rpm

Ø18: T-115082

Ø20: T-115083

Ø18: T-115082

Ø20: T-115083

T-085016

T-085010

T-085011

T-085017

T-085011

T-115097

T-115100

T-115097

T-115098

T-115101

T-115098

T-115097

T-115100

T-115097

T-115098

T-115101

T-115098

P out (mbar)

0:0,5

0,3:1,1

1,3:3

0,5:1,8

2:4

-0,8:-0´3

-0,9:0,1

-0,9:-0,3

-0,8:0

MODELOS

HVG 10/11 B.P.

HVG 10/11 Prop. USA-60 Hz

HVG 10/11 B.P. Australia

HVG 10/11 G.N.

HVG 10/11 G.N. USA-60 Hz

HVG 10/11 G.N. Australia

HVG 10/21 B.P.

HVG 10/21 Prop. USA-60 Hz

HVG 10/21 B.P. Australia

HVG 10/21 G.N.

HVG 10/21 G.N. USA-60 Hz

HVG 10/ 21 G.N. Australia

Generador vapor Quemador ON Quemador OFF

Vencendido S1 Vmáxima S2

Ø Arandela de aire

Válvula de gas GV1-GV2 Toberas. (cant=12) P out (mbar)

Ve=2000 rpm

V=4000 rpm

V=4500 rpm

Ø18: T-115082

T-115097

T-115100

Z-955899

0,3:1,1

" "

Ve=3000 rpm V=4500 rpm

" "

Ve=2000 rpm V=5500 rpm

V=6000 rpm

Ø20: T-115083

Ø18: T-115082

T-115097

T-115098

T-115101

T-115098

T-115097

T-115100

T-115097

Z-956104

1,3:3

Z-956109

Z-955899

0,5:1,8

Ve=3000 rpm V=5500 rpm

" V=6000 rpm

" "

Ø20: T-115083

T-115098

T-115101

T-115098

Z-956104

2:4

Z-956109

P out (mbar)

-0,8:-0´3

-0,9:0,1

-0,9:-0,3

-0,8:0

MODELOS

HVG 20/11 B.P.

HVG 20/11 Prop. USA-60 Hz

HVG 20/11 B.P. Australia

HVG 20/11 G.N.

HVG 20/11 G.N. USA-60 Hz

HVG 20/11 G.N. Australia

HVG 20/21 B.P.

HVG 20/21 Prop. USA-60 Hz

HVG 20/21 B.P. Australia

HVG 20/21 G.N.

HVG 20/21 G.N. USA-60 Hz

HVG 20/21 G.N. Australia

Generador vapor Quemador ON Quemador OFF

Vencendido S1 Vmáxima S2

Ø Arandela de aire

Válvula de gas GV1-GV2 Toberas. (cant=12) P out (mbar)

Ve=3000 rpm

V=6000 rpm

Ø22: T-135035

T-135037

T-135040

Z-955899

" " "

Ve=3500 rpm V=6000 rpm Ø26,3: T-135036

" " "

T-135037

T-135039

T-135041

Z-956104

Z-956109 " " " T-135039

P out (mbar)

SELECTORES DE VELOCIDAD S1-S2 DEL VARIADOR DE FRECUENCIA :

0 0000

1 0001

2 0010

3 0011

4 0100

5 0101

6 0110

7 0111

800 r.p.m.

1000 r.p.m.

1200 r.p.m.

1400 r.p.m.

1600 r.p.m.

1800 r.p.m.

2000 r.p.m.

2200 r.p.m.

8 1000

9 1001

10 1010

11 1011

12 1100

13 1101

14 1110

15 1111

2500 r.p.m.

3000 r.p.m.

3500 r.p.m.

4000 r.p.m.

4500 r.p.m.

5000 r.p.m.

5500 r.p.m.

6000 r.p.m. fig 56

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Key features

Convection and steam modes
Variable temperature settings
Core temperature control
Timer function
Safety thermostat
Differential grounding shunt device

Frequently asked questions

The oven has both convection and steam modes. Convection mode uses forced air to circulate heat throughout the chamber. Steam mode is ideal for moist cooking and uses a steam generator to inject steam into the chamber.

The oven has a temperature range from 30°C to 270°C in the convection mode. The temperature can be adjusted precisely using the electronic thermostat.

The core temperature control allows you to set a desired temperature for the center of the food you are cooking. This ensures even cooking and prevents food from being overcooked.

The oven includes a safety thermostat to prevent overheating and a differential grounding shunt device for electrical safety.