Carrier 020-093 Installation, Operation And Maintenance Instructions page 56

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12 - FACTORY OPTIONS AND ACCESSORIES

■ Fuel

Before starting up the heater, make sure that:

- the gas mains supply data is compatible with the data stated

on the nameplate;

- the combustion air intake ducts (when ﬁ tted) and the fume

exhaust pipes are those speciﬁ ed by the manufacturer;

- the combustion air is supplied in such a way as to avoid even

partial obstructions of the intake grille (caused by leaves etc.);

- the fuel intake internal and external seal is checked during

the testing stage, as required by applicable standards;

- the burner is supplied with the same type of fuel it has been

designed for;

- the system is correctly sized for such ﬂ ow rate and is ﬁ tted

with all safety and monitoring devices required by applicable

standards;

- the inside of the gas pipes and air distribution ducts for ducted

heaters has been thoroughly cleaned;

- the fuel ﬂ ow rate is suitable for suitable for the power required

by the burner;

- the fuel supply pressure is between the range speciﬁ ed on

the nameplate.

If the burner is not going to be used over a prolonged

period the gas supply valve must be closed.

■ Gas leaks

If there is gas smell:

- do not operate electrical switches, telephones or any other

object or device that could produce sparks;

- immediately open doors and windows to create an air ﬂ ow

to vent the gas out of the room;

- close the gas valves;

- call for qualiﬁ ed staﬀ.

Supplying the gas circuit with pressure higher

than 60 mbar is strictly prohibited. Such pressures

could cause the valve to break.

■ Operation

Do not allow children or inexperienced people to use any

electrically powered equipment.

The following instructions must be followed:

- do not touch the equipment with wet or damp parts of your

body and/or with bare feet;

- do not leave the equipment exposed to the elements (rain,

sun etc....) unless it is adequately protected;

- do not use the gas pipes to earth electrical equipment;

- do not touch the hot parts of the heater, such as the fume

exhaust duct;

- do not wet the heater with water or other ﬂ uids;

- do not place any object over the burner;

- do not touch the moving parts of the burner.

■ Maintenance

Maintenance operations and combustion inspections must

be carried out in compliance with current standards.

Before carrying out any cleaning and maintenance operations,

isolate the heater from the mains power supply from the switch

located on the electrical system and/or on the shut-out devices.

If the heater is faulty and/or incorrectly operating, switch it oﬀ

and do not attempt to repair it yourself, but contact our local

Technical Service.

All repairs must be carried out by using genuine spare parts.

Failure to comply with the above instructions could compromise

the safety of the equipment and invalidate the warranty.

If the equipment is not used for long periods, shut the gas

upply oﬀ through the gas stopcock and disconnect it from the

power supply.

If the heater is to be put out of service, in addition to the above

operations, potential sources of hazard on the unit must be

removed.

It is strictly forbidden to obstruct the Venturi pipe inlet, located

on the burner-fan unit, with your hands or with any other objects.

Any obstruction could cause a backﬁ re from the premixed

burner.

General recommendations

■ Country table - gas category:

Country

This manual is also suitable for:

50fc 50ff 020-099

Carrier 020-093 Installation, Operation And Maintenance Instructions page 56

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