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4 - INSTALLATION INSTRUCTIONS

4.1 Safety rules

• Installation, modifications and maintenance of the appliance

must be carried out by authorised personnel in compliance with
current safety standards. The manufacturer declines all responsi-
bility for failure to comply with these obligations.

•  In compliance with international regulations, when connecting

the appliance to the mains power supply, a device with a mini-
mum aperture of 3 mm between contacts must be fitted
upstream of the appliance, allowing omnipolar disconnection of
the appliance from the mains. Also, a high-sensitivity automatic
differential switch must be installed which protects against direct
or indirect contact with live electrical parts and against current
leakage (maximum current leakage permissible by regulations is
1 mA/kW).

•  Compare technical datas on grey stickers to those written on this

manual and present power supply.

•  Do not bend, crush or damage the cables against sharp corners.

•  Lay the cables so as to avoid contact with extremely hot surfaces.

• Connection to the grid must be carried out with at least a cable

type NYM or H07RN-F.

•  The cable - which is totally sheathed – must be led inside the

appliance through the cable clamp and cable raceway installed
on the appliance.

•  Ventilation system installation can be carried out only by expert

personnel.

•  If the appliance is to be installed near walls, dividing walls, kit-

chen equipment or decorative panelling, these should be in non-
inflammable material. If not, all appliances must be coated with
thermal-insulation fireproof material. Make sure that all fire pre-
vention standards and safety precautions are strictly adhered to.

4.2 Structure, equipment and safety devices
of the unit 

Robust steel frame, with 4 height adjustable feet. 

Steel outer panelling.

4.2.1 Cooking zone 

•  Burner with stabilized flame.

•  Pilot flame.

•  Gas cocks with safety and adjustable from maximum to minimum.

•  Thermoelectric ignition safety.

•  The bodies of the burners are made of nickelled cast-iron, the

flame spreaders are made of brass.

•  18/10 chrome-nickel steel cooking top.

•  Knobs in thermosetting material.

4.2.2 Oven

The cooking chamber is made of stainless steel. 

The runners for the pans are made of chromium-plated steel.

Extractable chromium-plated steel grill.

The door, with double wall and thermal insulation, is equipped with
an insulated handle and a hinge with balanced spring.

The insulation of the cooking chamber is rockwool.

Gas version GN 2/1

The tubular burners are in stainless steel and are resistant to thermal
and mechanical stress.

Gas is supplied through a safety valve with a thermostat.
Temperature adjustment between 150°C and 300°C, is made with the
thermostat.

The main burner is switched on from a pilot burner with safety ther-
mocouple. 

The pilot burner has a piezo ignition.

The bottom of the oven, in cast iron with reinforced ribs is in two
piece for easy extraction.

The smoke collector is in aluminised sheet metal and the protection
grill is in enamelled cast iron.

Electric version GN 2/1

The heating elements are in the top (upper heat) and under the
bottom (lower heat).

Temperature adjustment between 50°C and 300°C is made by a
thermostat connected to a tri-polar switch.

It is possible to turn on the upper and lower heating elements sepa-
rately or at the same time.

The lighting of the heating element is indicated by 2 indicator
lights.

The upper heating elements are visible (grill), while the lower ones
are covered by a sheet of stainless steel.

Electric version GN 1/1 ventilated 

The heating element is place in the rear around the fan and is pro-
tected by a bulkhead. Temperature adjustment between 50°C and
300°C is made by a thermostat connected to a switch.

The lighting of the heating element is indicated by 2 indicator
lights.

4.3 Assembly

4.3.1 Installation premises

This is a type A1 appliance. It must be installed in an adequately
ventilated room in order to avoid potentially unacceptable concen-
trations of harmful substances in the space in which the appliance is
installed. This room must meet all applicable local and national reg-
ulations.

The appliance must be installed in an adequately ventilated room in
order to ensure the air flow necessary for combustion, in accor-
dance with all applicable local and national regulations.

The appliance can be installed on its own or with other similar
equipment.

If the appliance is to be installed near inflammable walls, a minimum
distance of 150 mm around the sides and back should be allowed. 

If this distance cannot be obtained, take proper heat-protection
action such as fitting tiles or thermal radiation protection material
to the walls.  

Before connecting the appliance to the gas supply, check on the
data plate that the appliance is suitable and type-tested for the
type of gas available. 

If the type of gas indicated on the data plate of the appliance does
not correspond to the gas which is present, refer to the paragraph
5.1.10 “Conversion and adaptation”. 

4.3.2 Statutory regulations and technical requirements

During installation of the appliance, the following regulations must
be adhered to:

•  Relevant legal directives;

•  Local building and combustion regulations;

•  "Technical rules for gas systems" worksheet;

•  "Technical rules for liquid gas" worksheet;

•  “Gas installations in industrial kitchens” worksheet;

•  Relative accident prevention standards;

•  Local gas utility regulations;

•  Local building and fire codes.

8

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0837_GB_99

- GAS KITCHENS WITH PILOT

Summary of Contents for M74NB

Page 1: ...05 2020 0837_GB_99 High Technology Low Cost M74NB M76NB M74NBFG M76NBFG M74NBFE M76NBFE M74NBFXE M76NBFXE Instructions for installation use e maintenance GAS KITCHENS WITH PILOT...

Page 2: ...CHARACTERISTICS 0837_GB_99 GAS KITCHENS WITH PILOT 2 20 Supplied by Date Customer Service FAX e mail...

Page 3: ...11 5 1 15 Replacement of pilot injector of gas oven GN 2 1 11 5 2 Maintenance 11 5 3 Replacing parts 12 5 3 1 Open flame gas cock 12 5 3 2 Open flame thermocouple 12 5 3 3 Gas valve gas oven GN 2 1 1...

Page 4: ...8 3 5 5 7 5 5 8 5 5 55 6 1 4 7 3 3 3 3 E power Gas 1 2 Electric power Electric power Data plate Data plate Electric power Data plate Data plate Gas 1 2 Data plate Gas 1 2 Gas 1 2 Gas 1 2 Gas 1 2 Data...

Page 5: ...6 9 M M 6 9 9 9 9 9 D 0 2 Gas 1 2 Data plate Data plate Data plate Gas 1 2 Electric power Electric power Data plate Electric power Data plate Electric power Gas 1 2 Gas 1 2 Gas 1 2 Gas 1 2 1 DIAGRAM 0...

Page 6: ...convection oven GN 1 1 Dimensions in mm LxDxH 800 x 700 x 900 1000 x 700 x 900 800 x 700 x 900 1000 x 700 x 900 800 x 700 x 900 1000 x 700 x 900 800 x 700 x 900 1000 x 700 x 900 N 51BS3547 51BS3547 5...

Page 7: ...trical data M74NB M74NBFE M74NBFXE M76NB M76NBFE M76NBFXE M74NBFG M76NBFG S 72 11 5 0 1 60 0 529 0 394 165 Adjustable 115 55 7 18 5 Model Category Construction type Air necessary for combustion Nomina...

Page 8: ...ustment between 150 C and 300 C is made with the thermostat The main burner is switched on from a pilot burner with safety ther mocouple The pilot burner has a piezo ignition The bottom of the oven in...

Page 9: ...te l min The following formula is used to calculate the value of E It is important measure the power when the appliance is in standby status The calorific power value can be requested from the local g...

Page 10: ...5 SET UP FOR OPERATION 10 20 0837_GB_99 GAS KITCHENS WITH PILOT 6 8 7 9 22 5 4 21 A 1 2 3 11 17 14 Fig 1...

Page 11: ...unfix the injector and replace the injector with one able for the type of gas see table 1 install in reverse order After the replacement check the seal using a leack detector spray 5 1 13 Setting red...

Page 12: ...and put in a new piece pos 14 fig 2 install in reverse order 5 3 6 Main burner gas oven GN 2 1 Remove the front lower panel by removing the fastening screws Unscrew the screws fixing the hanger pos 2...

Page 13: ...t pos 2 fig 5 NB the nut is with left thread Loosen the bolts pos 3 fig 5 hat hold the motor pos 4 fig 5 on the oven and pull off from rear Re install in reverse order position ing in the correct way...

Page 14: ...Attention The manufacturer declines all responsibility concern ing mistakes included in these instructions due to translating or printing errors the manufacturer also reserves the right to change the...

Page 15: ...ppliance is not to be used for a long time clean thor oughly cas instructed in the chapter 6 7 Appliance care and fre quency of maintenance close the connecting cock of the unit and switch off any ele...

Page 16: ...od together i e fatty dishes or vegetables containing acids Avoid damaging the stainless steel surface in particular with different metals Residues from other metals help build up the formation of che...

Page 17: ...1 3 5 2 4 6 1 3 5 2 4 6 R2 R1 H1 H2 F2 230V 3 14 75 A 1 3 5 2 4 6 R1 R2 230V 25 7 A 1 3 5 2 4 6 R1 R2 L1 N 1 mA 2 3 4 1 mA 2 3 4 L1 L2 L3 M74NBFE M76NBFE 0837_GB_99 GAS KITCHENS WITH PILOT mA B1 B2 F...

Page 18: ...3 H1 H2 R1 F1 MV F2 M74NBFXE M76NBFXE 0837_GB_99 GAS KITCHENS WITH PILOT mA B1 R1 F1 F2 H1 H2 MV Terminal board Commutator Heating element 2500 W Thermostat Security thermostat Green indicator light Y...

Page 19: ...19 20 NOTES 0837_GB_99 GAS KITCHENS WITH PILOT...

Page 20: ...idicucine it WARNING THE MANUFACTURER CANNOT BE HELD RESPONSIBLE FOR ANY INACCURACIES IN THIS BOOKLET DUE TO COPYING OR PRINTING ERRORS DUE TO ITS POLICY OF CONTINUAL PRODUCT IMPROVEMENT THE MANUFACTU...

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