Ambirad COBRA CB40 Manuale di installazione, funzionamento, manutenzione e assistenza - Pagina 6

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3 Fan assembly

Note: For both horizontal and inclined

mounting the fan assembly must be

perfectly vertical with the fan outlet

facing upwards.

For unflued heaters (UK Only) a fan baffle

must be attached to the fan outlet. (Part

No 201301)

4 Cobra herringbone gas

radiant tube heaters

For herringbone heaters refer to the

relevant information leaflet

(GB/HB/134/0402).

A herringbone system allows several

Cobra heaters to be operated by one

combustion fan. This has the benefit of

only one building penetration being

required when flueing the products of

combustion.

5 Health & safety

Ambi-Rad Limited cannot be responsible

for ensuring that all site safety

procedures are adhered to during

assembly and installation. Sole liability

rests with the installer.

6 Installation - suggested

methods of heater

suspension

Attachment to the heater support lugs

should be made by either a 'speed link', D

shackle, nut bolt and large washer, or in

the case of drop rods, a closed formed

hook. The hanging attachments to

overhead steelwork etc. must be purpose

made to good sound engineering practice

or of a proprietary type fixing. They must

be adequately fixed and designed to carry

the whole weight of the heater, unpacked

152kg.

In the event of suitable roof steelwork not

being available, additional steelwork

should be fitted to enable vertical hangers

to be used for suspending the heaters.

If there are any doubts as to the strength

or suitability of roof steelwork to which

heaters are to be suspended, please refer

to consultant / architect / owner of the

building.

7 Minimum mounting heights

and clearances

The recommended minimum mounting

heights, along with the recommended

clearance to combustibles for the Cobra

range of heaters is shown in the table

below.

Clearances 1

Clearances 3

Model

All models

Minimum recommended mounting heights

Model

Horizontal (m)

CB40

Clearance distances

Model

A. Above reflector (fan unflued)

B. Above burner/fan assembly unflued

C & E Beneath tubes

D. To the sides

B. Above reflector and fan outlet flued

F. From ends

All dimensions are in millimetres

Clearances 2

Required angle

Additional chain length (mm)

30˚

45˚

Inclined 30˚ (m)

5.7

5.3

CB40

2300

1300

575

730

Inclined 45˚ (m)

5.3

680

500

940