Ambi-Rad OFSU40 Istruzioni per l'installazione, la messa in servizio e la manutenzione - Pagina 3

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1 General warning

Read these instructions carefully, they

include important information on safety of

installation, use and maintenance.

Keep this manual safe for any further

reference.

In case the unit is sold or transferred to

another user, or in case the user should

move and leave the units, make sure that

this manual stays with the unit, so that it

can be consulted by the new user and/or

installer.

Any manufacturer's liability (under the

contract provisions or otherwise) for

damage resulting from wrong installation or

misuse, and/or non-compliance with the

instructions supplied by the manufacturer

shall be expressly excluded.

Combustion air requirements

The unit shall be installed in a suitable room

with ventilation openings in compliance

with the regulations in force, and sufficient

to obtain perfect combustion.

All oil-fired appliances require air for the

combustion process.

If sufficient amounts of combustion air are

not available, the heater or other appliance

will operate in an inefficient and unsafe

manner. Enough air must be provided to

meet the needs of all fuel-burning

appliances, as well as appliances such as

exhaust fans, which force air out of the

building. When exhaust fans, are used at

the same time as the heater, much more air

is required to ensure proper combustion and

to prevent a down-draught situation.

Insufficient air for combustion can result in

the production of carbon monoxide.

Electrical supply

The electrical installation may only be

carried out by suitably qualified persons

observing the rules in force. Qualified

personnel should check that the electric

system is adequate for the rated input

shown on the units data plate, making sure

in particular that the system wire gauge is

suitable for the rated power input of the

unit.

The units electrical safety is only achieved

when the burner is properly connected to a

safe earthing system, installed as provided

according to the safety regulations in force.

This essential safety requirement should be

carefully verified. In case of doubt, ask

qualified personnel to accurately inspect the

installation.

The manufacturer shall not be held liable for

damages resulting from failure to earth the

unit.

No adaptors multiple sockets and/or

extensions shall be used to connect the unit

to mains. A multi-pole switch shall be

provided to connect the units to mains, in

compliance with the safety regulations in

force.

The use of any component operating with

electric power implies that some basic rules

are observed such as the following:

• never touch the unit with wet or damp

parts of the body

• do not remove electric cables;

• do not leave the unit exposed to adverse

weather conditions (rain, sunshine etc)

unless the unit has been expressly

designed to be so exposed;

• do not allow inexperienced people to

use the unit.

The unit supply cable shall not be replaced

by the user. In case the cable becomes

damaged, switch off the unit and refer to

qualified personnel only.

If the unit is idle for some time, the electric

switch supplying all power-operated system

components (such as fan, burner etc) shall

be disconnected.

Packing

Remove the packing material and make sure

that the contents have suffered no damage.

In case of doubt, do not use the unit and

contact the supplier.

Warm air heaters

The unit shall be used in the applications for

which it is expressly intended. Any other

use is to be regarded as improper, and

therefore a potential source of danger.

Factory accessory equipment only shall be

used for all units with options or kits.

Avoid contact with hot heater surfaces.

Such surfaces, usually located near the

flame become hot during operations and

remain so for some time after the burner

has been extinguished. When use of the

unit is to be discontinued, any potential

source of hazard shall be made inoperative.

When the unit is to be finally

decommissioned, ask professionally qualified

personnel to do the following:

a) Disconnect the unit from mains by

removing the master switch supply

cable

b) Cut off the fuel supply by turning the

manual fuel cut-off valve. Remove the

control wheels from their seats.

Setting & commissioning of burner

Units shall be commissioned by

professionally qualified personnel, following

the manufacturer's instructions in

compliance with the regulations in force.

Make sure that the burner has been safely

secured to the warm air heater, so that the

flame is generated inside the heater

combustion chamber.

Before igniting the burner, the

commissioning engineer should;

• Set the burner fuel flow rate based on

the firing rate required by the warm air

heater.

• Adjust the combustion air flow rate to

obtain a combustion efficiency at least

equal to the lowest value required by

current regulations.

• Check that fuel combustion is correct

to prevent the generation of any

harmful or polluting unburnt gases

beyond the limits permitted by the

current regulations.

• Check that safety and control

devices are working properly.

• Check that the flue system is in

sound working condition.

• On completing all adjustment and

setting operations, check that all

adjusting device mechanical locks have

been properly tightened.

In case the burner repeatedly shuts down,

do not attempt to manually reset the unit.

Contact professionally qualified personnel to

correct the malfunction.

Please refer to the table on page 12 for

details of burner set up.