Tải bản đầy đủ
TABLE 4. 8 VENTILATION OF GAS EQUIPMENT – MECHANICAL VENTILATION

TABLE 4. 8 VENTILATION OF GAS EQUIPMENT – MECHANICAL VENTILATION

Tải bản đầy đủ

71

AS 5601 – 2000
AG 601 – 2000

Licensed to LUU MINH LUAN on 26 Feb 2002. Single user licence only. Storage, distribution or use on network prohibited.

SECTION 5 - CONTENTS
INSTALLING APPLIANCES
5.1

REQUIREMENTS FOR APPLIANCES ................................................................76
5.1.1 Type A appliance to be approved...........................................................76
5.1.2 Requirements for a Type B appliance ....................................................76
5.1.3 Requirements for a second-hand appliance...........................................76
5.1.4 Requirements for converting an appliance from another gas.................76
5.1.5 Requirements for converting an appliance from another fuel.................76

5.2

GENERAL INSTALLATION REQUIREMENTS....................................................76
5.2.1 Restriction on flueless appliances ..........................................................76
5.2.2 Restriction on external appliances .........................................................76
5.2.3 Prohibited location of connection point for portable appliance...............77
5.2.4 Ventilation ..............................................................................................77
5.2.5 Manufacturer’s instructions for installation .............................................77
5.2.6 Appliance installation to be safe.............................................................77
5.2.7 Combustible surfaces – Temperature limitation .....................................77
5.2.8 Appliances using pressurised air or oxygen or having a
stand-by gas connected.........................................................................77
5.2.9 Connection of an additional appliance ...................................................77
5.2.10 Automatic control to fail safe ..................................................................77
5.2.11 Electrical requirements...........................................................................78
5.2.12 Restoration of electricity supply .............................................................78
5.2.13 Appliance support...................................................................................78
5.2.14 Strain on appliance connection ..............................................................78
5.2.15 Securing an appliance............................................................................78
5.2.16 Flexible connections for the prevention of vibration ...............................78
5.2.17 Connection of appliance designed to move on castors,
rollers or wheels.....................................................................................78
5.2.18 Appliance restraint where a hose assembly is used ..............................78
5.2.19 Requirements for an appliance with wheels or castors ..........................78
5.2.20 Push-on connectors limited to connecting laboratory bunsen burners...78

5.3

APPLIANCE LOCATION......................................................................................79
5.3.1 Air movement system not to affect appliance.........................................79
5.3.2 Appliance not to be subject to physical damage ....................................79
5.3.3 Appliance to be accessible.....................................................................79
5.3.4 Appliance not to be a hazard to a building or person.............................79
5.3.5 Appliance not to be near flammable vapours, materials or chemicals ...79
5.3.6 Appliance not to stand in water ..............................................................79
5.3.7 Appliance installed above a source of cooking vapour,
steam or grease .....................................................................................79
5.3.8 Appliance in a cupboard.........................................................................80
5.3.9 Appliance in a bedroom..........................................................................80
COPYRIGHT

AS 5601 – 2000
AG 601 – 2000

Licensed to LUU MINH LUAN on 26 Feb 2002. Single user licence only. Storage, distribution or use on network prohibited.

5.3.10
5.3.11
5.3.12
5.3.13

72

Appliance in a residential garage ...........................................................80
Appliance in a roof space.......................................................................80
Appliance on roof or elevated structure .................................................81
Appliance under a floor ..........................................................................81

5.4

AIR SUPPLY TO APPLIANCES ..........................................................................82
5.4.1 Air supply to appliances to be adequate ................................................82
5.4.2 Quality of air supply................................................................................82
5.4.3 Air requirements – Appliance in a room or enclosure, other than
a plant room...........................................................................................82
5.4.3.1 General .....................................................................................82
5.4.3.2 Natural ventilation direct from outside.......................................82
5.4.3.3 Natural ventilation via adjacent room ........................................83
5.4.3.4 Mechanical ventilation...............................................................83
5.4.4 Air requirements – Appliance in a plant room ........................................84
5.4.4.1 General .....................................................................................84
5.4.4.2 Natural ventilation direct from outside.......................................84
5.4.4.3 Natural ventilation via adjacent room ........................................84
5.4.4.4 Mechanical ventilation...............................................................85
5.4.5 Air requirements – Appliance in a residential garage.............................85

5.5

INTERLOCK FOR MECHANICAL AIR SUPPLY TO APPLIANCE ......................85

5.6

APPLIANCE CONNECTION................................................................................86
5.6.1 Connection pipe size ..............................................................................86
5.6.2 Means of isolation ..................................................................................86
5.6.3 Means of disconnection..........................................................................87

5.7

APPLIANCE GAS PRESSURE REGULATOR ....................................................87
5.7.1 Fitting of an appliance gas pressure regulator .......................................87
5.7.2 Provision for pressure checking .............................................................88
5.7.3 Location of appliance gas pressure regulator ........................................88
5.7.4 Gas pressure regulator for existing appliance........................................88
5.7.5 Venting of appliance gas pressure regulator..........................................88

5.8

AIR HEATING APPLIANCE IN A CONFINED SPACE ........................................88

5.9

COMBUSTION AND DILUTION AIR FOR AN APPLIANCE WITH AN OPEN
FLUE....................................................................................................................88

5.10 INTERLOCK OF AUTOMATIC FIRE DAMPER AND GAS SUPPLY...................88
5.11 GAS SHUT-OFF WHEN AUTOMATIC FIRE EQUIPMENT OPERATES ............88
5.12 SPECIFIC APPLIANCES – INSTALLATION .......................................................89
5.12.1 Domestic cooking appliance...................................................................89
5.12.1.1 Clearances around a cooking appliance ...................................89
5.12.1.2 Protection of a combustible surface near a cooking appliance .89
5.12.1.3 Clearance above a high level griller ..........................................89
5.12.1.4 Single boiling burners................................................................89
5.12.1.5 Connecting an elevated cooking appliance...............................89
5.12.1.6 Clearance from oven flue of elevated cooking appliance..........89
5.12.1.7 Stabilisation Of A Freestanding Cooking Appliance..................91
COPYRIGHT

Licensed to LUU MINH LUAN on 26 Feb 2002. Single user licence only. Storage, distribution or use on network prohibited.

73

AS 5601 – 2000
AG 601 – 2000

5.12.1.8 Connecting a freestanding cooking appliance using a hose .....91
5.12.1.9 Connecting a freestanding cooking appliance using a hose
assembly – Under cooker connection .......................................91
5.12.2 Inbuilt oven.............................................................................................91
5.12.2.1 Location of an inbuilt oven ........................................................91
5.12.2.2 Size of recess............................................................................91
5.12.2.3 Base to be capable of supporting the oven...............................91
5.12.2.4 Gas connection .........................................................................92
5.12.2.5 Electrical requirements..............................................................92
5.12.3 Indoor open grid barbecues installed in residential premises Clearances and protection.....................................................................92
5.12.4 Commercial catering equipment.............................................................92
5.12.4.1 Floor or support to be adequate................................................92
5.12.4.2 Requirements for an appliance with wheels or castors.............92
5.12.4.3 Combination cooking ranges.....................................................92
5.12.4.4 Clearances to a grease filter .....................................................93
5.12.4.5 Clearances and protection around commercial catering
equipment .................................................................................93
5.12.4.6 Commercial catering equipment on a combustible surface ......94
5.12.5 Instantaneous water heater....................................................................94
5.12.5.1 Unflued instantaneous water heater prohibited.........................94
5.12.5.2 Prohibited locations...................................................................94
5.12.6 Storage water heater..............................................................................94
5.12.6.1 Restriction when installed in a bathroom or toilet......................94
5.12.6.2 Supporting base to be level and capable of
supporting appliance .................................................................94
5.12.7 Pool heater (including swimming, spa and therapeutic pool) .................94
5.12.7.1 Prohibited locations...................................................................94
5.12.7.2 Type of supporting base............................................................95
5.12.7.3 Requirement for pool heater where flow and return water pipes
are of plastic..............................................................................95
5.12.7.4 Non-return valve required .........................................................95
5.12.7.5 Restriction on fitting of a valve in water flow line ......................95
5.12.7.6 Requirements where a pool heater is used for a spa or
therapeutic pool ........................................................................95
5.12.8 Space heater ..........................................................................................95
5.12.8.1 Limitation on installation............................................................95
5.12.8.2 Restrictions on installation of a flueless space heater ..............95
5.12.8.3 Requirements where to be installed in an institution.................96
5.12.8.4 Requirements for overhead radiant heaters..............................96
5.12.9 Ducted air heater....................................................................................97
5.12.9.1 Air circulation fan not to affect appliance ..................................97
5.12.9.2 Ductwork not to prevent lighting or servicing ............................97
5.12.10 Air curtain ...............................................................................................97
5.12.10.1 Installation requirements ..........................................................97
5.12.11 Direct-fired air heater .............................................................................97
5.12.11.1 Prohibited locations .................................................................98
5.12.11.2 Restriction on air supply ..........................................................98
5.12.12 Overhead radiant tube heater ................................................................98
5.12.12.1 Requirements for an installation where atmosphere is
contaminated ..........................................................................98
5.12.12.2 Clearances required around the heater ...................................98
COPYRIGHT

Licensed to LUU MINH LUAN on 26 Feb 2002. Single user licence only. Storage, distribution or use on network prohibited.

AS 5601 – 2000
AG 601 – 2000

74

5.12.12.3 Heater supports to be adequate...............................................98
5.12.12.4 Requirements where heater is to be supported by chains ......98
5.12.13 Decorative gas log fire ...........................................................................98
5.13.13.1 Prohibited appliances ..............................................................98
5.12.13.2 Ventilation requirements..........................................................99
5.12.13.5 Requirements for fireplace and chimney for Type1 log fires ...99
5.12.13.4 Damper not permitted in chimney or flue.................................99
5.12.13.5 Flue cowl required ...................................................................99
5.12.14 Laundry dryer ........................................................................................99
5.12.14.1 Exhaust duct required............................................................100
5.12.14.2 Exhausting into a room or enclosure .....................................100
5.12.14.3 Exhaust duct requirements....................................................100
5.12.14.4 Exhaust duct not to be combined with a flue .........................100
5.12.14.5 Combining of exhaust ducts ..................................................100
5.12.14.6 Dryers for community use – Operating instructions to be
displayed...............................................................................100
5.12.15 Gas light ..............................................................................................100
5.12.15.1 Required clearances between enclosed lights
and combustibles ....................................................................100
5.12.15.2 Supporting of an internal pendant light..................................100
5.12.16 Incinerator ...........................................................................................100
5.12.16.1 Required clearances to combustible surfaces around an
incinerator .............................................................................100
5.12.16.2 Operating instructions to be displayed ..................................101
5.12.17 Pottery kiln ...........................................................................................101
5.12.17.1 Support to be non-combustible and of adequate strength.....101
5.12.17.2 Flame safeguard system required .........................................101
5.12.17.3 Clearances between a hood or canopy and combustible
material .................................................................................101
5.12.18 Refrigerator .........................................................................................101
5.12.18.1 Prohibited locations ...............................................................102
5.12.18.2 Floor to be adequate to support refrigerator..........................102
5.12.18.3 Required clearances..............................................................102
5.12.18.4 Requirements where refrigerator is to be in a sealed recess 102
5.12.18.5 Requirement for annealed copper tube connection...............102
5.12.19 Type B appliances ...............................................................................102
5.12.19.1 Installation requirements .......................................................102
5.13 FLUEING ...........................................................................................................103
5.13.1 General...................................................................................................103
5.13.1.1 Provision of a flue.....................................................................103
5.13.1.2 Flue installation not to reduce building strength
or fire resistance .....................................................................103
5.13.2 Flue material.........................................................................................103
5.13.3 Flue design...........................................................................................103
5.13.3.1 General design requirements..................................................103
5.13.3.2 Exhausting of flue gases .........................................................103
5.13.3.3 Flue gases not to cause a nuisance........................................103
5.13.3.4 Vertical rise required before a change of direction .................103
5.13.3.5 Lateral run in a flue .................................................................103
5.13.3.6 Minimum rise in a lateral run ...................................................103
5.13.3.7 Common (combined) flue........................................................103
5.13.3.8 Flue for gas and other fuels ....................................................103
COPYRIGHT

Licensed to LUU MINH LUAN on 26 Feb 2002. Single user licence only. Storage, distribution or use on network prohibited.

75

AS 5601 – 2000
AG 601 – 2000

5.13.3.9 Restriction to the flow of the flue gases to be minimised ........104
5.13.3.10 Flue to include a draught diverter..........................................104
5.13.3.11 Operation of flue fitted with draught diverter .........................104
5.13.3.12 Operation of flue without a draught diverter ..........................104
5.13.3.13 Power flue .............................................................................104
5.13.3.14 Flue cowl required.................................................................104
5.13.4 Flue installation ....................................................................................105
5.13.4.1 Provision for removal of appliance ..........................................105
5.13.4.2 Flue to be supported independently of appliance ...................105
5.13.4.3 Support of flue.........................................................................105
5.13.4.4 Soft-soldered flue joints...........................................................105
5.13.4.5 Joints in a flue .........................................................................105
5.13.4.6 Weather-proofing a flue pipe through a roof or wall ................105
5.13.4.7 Brick or masonry flue to be sealed from cavities.....................105
5.13.4.8 Clearance around a draught diverter ......................................105
5.13.5 Location of flue.....................................................................................105
5.13.5.1 Prohibited location of a flue.....................................................105
5.13.5.2 Concealed metal flue ..............................................................105
5.13.5.3 Flue pipe extending into a chimney.........................................106
5.13.5.4 Temperature limitation of combustible surfaces near
a flue or chimney.....................................................................106
5.13.5.5 Clearance from wiring and fittings...........................................106
5.13.5.6 Application of approved twin wall flue .....................................106
5.13.5.7 Required clearance between an approved twin wall metal
flue and a combustible surface ...............................................106
5.13.5.8 Required clearance between a single wall metal or fibre
cement flue and a combustible surface ..................................107
5.13.5.9 Protection of combustible surfaces .........................................107
5.13.5.10 Protection of adjacent non-combustible materials from
heat of flue ............................................................................108
5.13.6 Terminating a flue – Location ...............................................................108
5.13.6.1 The termination point of a flue to be located to avoid
downdraught ...........................................................................108
5.13.6.2 Terminating a flue above a roof ..............................................108
5.13.6.3 Location of a power flue terminal ............................................109
5.13.6.4 Location of flue terminal ..........................................................109
5.13.6.5 Location of a flue terminal of a balanced flue appliance, fanassisted flue appliance, room-sealed appliance
or an outdoor appliance ..........................................................109
5.13.6.6 Balanced flue terminal, room-sealed appliance terminal or
terminal of an outdoor appliance under a covered area..........109
5.13.6.7 Terminating a flue in a roof space...........................................111
5.13.7 Use of existing flue or chimney ............................................................111
5.13.7.1 Any existing fault to be rectified ..............................................111
5.13.7.2 Clearing and checking an existing chimney and flue ..............111
5.13.7.3 Damper plate in chimney or flue .............................................111
5.13.8 Flueing of an incinerator.......................................................................111
5.13.9 Flueing of a pottery kiln ........................................................................112

COPYRIGHT

AS 5601 – 2000
AG 601 – 2000

SECTION 5

76

INSTALLING APPLIANCES

5.1 REQUIREMENTS FOR APPLIANCES
5.1.1 Type A appliance to be approved
A Type A appliance shall comply with the current appropriate specifications,
standards of performance and approval requirements of the AGA/ALPGA. The
appliance shall be suitable for the type of gas to be connected and –
(a)

be AGA/ALPGA approved; or

(b)

be approved by the Authority.

5.1.2 Requirements for a Type B appliance
A Type B appliance shall comply with the requirements of AS 3814 / AG 501 and be
approved by the Authority.

Licensed to LUU MINH LUAN on 26 Feb 2002. Single user licence only. Storage, distribution or use on network prohibited.

✴ 5.1.3

Requirements for a second-hand appliance

Before a second-hand Type A or Type B appliance is installed, the appliance shall
satisfy the safety requirements of the Authority or, in the absence of specified
requirements by the Authority, shall comply with the appropriate current AGA and
/or ALPGA Standard.
✴ 5.1.4

Requirements for converting an appliance from another gas

An appliance may be converted to suit another gas type provided –
(a)

the appliance is suitable for that gas; and

(b)

the conversion is in accordance with a conversion procedure acceptable to the
Authority and the manufacturer.

NOTE: Where an appliance is to be converted to a gas type which is not shown on the
appliance data plate, the Authority may require to be specifically advised prior to the
commencement of the work.

5.1.5 Requirements for converting an appliance from another fuel
When converting an appliance from another fuel to gas, the conversion shall be in
accordance with a conversion procedure acceptable to the Authority.

5.2 GENERAL INSTALLATION REQUIREMENTS
5.2.1 Restriction on flueless appliances
A flueless appliance shall not be installed in a –
(a)

bedroom;

(b)

bathroom;

(c)

toilet; or

(d)

sauna.

5.2.2 Restriction on external appliances
An appliance shall not be installed –
(a)

internally if it is designed for external installation; or

(b)

externally unless it is designed for external installation.

NOTE: An appliance designed for indoor installation may be installed ‘externally’ in an
enclosure if the requirements of Section 5 are satisfied.
COPYRIGHT

77

AS 5601 – 2000
AG 601 – 2000

5.2.3 Prohibited location of connection point for portable appliance
A connection point for a portable appliance shall not be located in a –
(a)

bedroom;

(b)

bathroom;

(c)

toilet;

(d)

sauna; or

(e)

hallway.

NOTE: See also Clause 4.8.3.

5.2.4 Ventilation
An appliance shall be adequately ventilated to ensure safe operation.
NOTE: See Clause 5.4 air supply to appliances.

5.2.5 Manufacturer’s instructions for installation

Licensed to LUU MINH LUAN on 26 Feb 2002. Single user licence only. Storage, distribution or use on network prohibited.

Where there is any conflict between the manufacturer’s installation instructions and
the requirements of this Standard, the matter shall be referred to the Authority for a
ruling.

5.2.6 Appliance installation to be safe
Where, as part of an installation, the safe operation of an appliance or the safety of
a consumer may be affected by –



(a)

not fitting certain components, then these shall be fitted; or

(b)

not meeting certain installation requirements, then these shall be complied
with.

5.2.7 Combustible surfaces – Temperature limitation
An appliance shall be installed such that the surface temperature of any nearby
combustible surface will not exceed 65°C above ambient.
NOTES:
1 Type A appliances installed to manufacturer’s instructions should satisfy the intent of
this requirement.
2 Care should be taken where a combustible surface is covered by a non-combustible
material. For example, covering a combustible surface with stainless steel will not
prevent heat transfer and in some circumstances a hazardous situation could arise.

5.2.8 Appliances using pressurised air or oxygen or having a stand-by
gas connected
Where an appliance uses pressurised air or oxygen in the combustion process or
has a stand-by gas connected, the requirements of Clause 4.2.2 shall apply.

5.2.9 Connection of an additional appliance
Before connecting an additional appliance to an existing consumer piping system,
the existing piping shall be checked for adequate capacity. If found unsuitable, the
existing consumer piping shall be made suitable or separate piping shall be
installed.

5.2.10 Automatic control to fail safe
A control or control system which operates an appliance automatically, or
unattended, or by remote control, shall fail safe.

COPYRIGHT

AS 5601 – 2000
AG 601 – 2000

78

5.2.11 Electrical requirements
A gas appliance connected to the electricity supply shall have a suitable means of
electrical isolation which is adjacent to the appliance location and is accessible with
the appliance installed. The means of isolation is to be –
(a)

a plug to a switched general purpose outlet;

(b)

a double-pole isolating switch; or

(c)

a plug to a fixed socket outlet.

5.2.12 Restoration of electricity supply
Where interruption of the electricity supply can cause burner shut-down, then
restoration of the electricity supply shall not be capable of causing a hazard.

5.2.13 Appliance support
An appliance shall be supported on or secured to a durable structure which is
appropriate for the use and location of the appliance .
NOTE: A fence is not normally to be considered as a durable structure.

Licensed to LUU MINH LUAN on 26 Feb 2002. Single user licence only. Storage, distribution or use on network prohibited.

5.2.14 Strain on appliance connection
An appliance shall be supported and secured so that the strain on any pipe
connection is minimised.
NOTE: The weight and normal operation of the appliance needs to be considered in
meeting this requirement.

5.2.15 Securing an appliance
Where an appliance manufacturer or the Authority directs that an appliance be
secured, the means of securing shall be suitable for the conditions of use. Wooden
plugs shall not be used.

5.2.16 Flexible connections for the prevention of vibration
An appliance that will impart significant vibration to the consumer piping shall be
connected to the consumer piping using a flexible connection suitable for the
application.

5.2.17 Connection of appliance designed to move on castors, rollers or
wheels
An appliance designed to move on castors, rollers or wheels shall be connected to
the consumer piping using a hose assembly.

5.2.18 Appliance restraint where a hose assembly is used
Where a hose assembly connects to an appliance other than a portable space
heater, having a mass greater than 20 kg and fitted with castors, rollers or wheels,
or designed to be slid out for servicing, the extent of movement of the appliance
shall be restrained by means other than the hose assembly.

5.2.19 Requirements for an appliance with wheels or castors
An appliance other than a portable space heater, fitted with wheels or castors shall
have means fitted to restrain the appliance during operation.

5.2.20 Push-on connectors limited to connecting laboratory bunsen
burners
A push-on connector shall only be used for connecting a laboratory bunsen burner
where –
(a)

the gas pressure will not exceed 3 kPa;
COPYRIGHT

79

AS 5601 – 2000
AG 601 – 2000

(b)

the bunsen burner or the outlet of the hose has no valve fitted; and

(c)

a manual shut-off valve is fitted upstream of and adjacent to the inlet end of
the hose.

5.3 APPLIANCE LOCATION
5.3.1 Air movement system not to affect appliance
An appliance shall not be installed where the operation of any ventilation system,
air distribution system, fan or air blower could under any circumstances –
(a)

deprive the appliance of the air required for combustion and draught diverter
dilution;

(b)

cause the air pressure to be less than atmospheric at the appliance; or

(c)

otherwise adversely affect the operation of the appliance .

NOTE: See also Clause 5.4.1.

5.3.2 Appliance not to be subject to physical damage

Licensed to LUU MINH LUAN on 26 Feb 2002. Single user licence only. Storage, distribution or use on network prohibited.

An appliance shall not be located where physical damage to the appliance is likely
to occur, unless adequate protection is provided.

5.3.3 Appliance to be accessible
An appliance shall be in an accessible location. Sufficient clearances shall allow
access to, and removal of, all serviceable components.
NOTE: Removal of a panel or door to give access to a control compartment is
acceptable.

5.3.4 Appliance not to be a hazard to a building or person
An appliance shall not cause a hazard to walls, nearby surfaces, curtains, furniture
or opened doors, and shall not obstruct the free movement of persons.

5.3.5 Appliance not to be near flammable vapours, materials or
chemicals
An appliance shall not be installed in a location where it may ignite flammable
vapours or materials or where chemicals may combine with combustion air and
cause corrosion or malfunction of the appliance .
NOTE: Such materials include some cleaning solvents and some chemicals used in dry
cleaning processes.

5.3.6 Appliance not to stand in water
Where the base of an appliance is likely to be subjected to ground water, seepage
or any wet floor condition, the appliance support(s) shall be designed, and the
surroundings drained, so that water will not remain in contact with the appliance
base.

5.3.7 Appliance installed above a source of cooking vapour, steam or
grease
Where an appliance , other than a room-sealed appliance, is to be installed above a
source of cooking vapour, steam or grease there shall be a clearance of at least
600 mm between the appliance and the source of cooking vapour, steam or grease.
However, an appliance shall not be located vertically above a fryer, Chinese
cooking table, char grill or open flame barbecue.

COPYRIGHT

AS 5601 – 2000
AG 601 – 2000

80

5.3.8 Appliance in a cupboard
Where an appliance is to be installed in a cupboard , the following shall apply:
(a)

The cupboard is not to be a storage area for flammable materials.

(b)

A warning notice, stating –
“The storage of flammable materials in this cupboard is prohibited”

is to be fixed in a prominent position, on or adjacent to the appliance .

5.3.9 Appliance in a bedroom
Special provisions apply for the installation of an appliance in a bedroom, refer to
the specific appliance detail for requirements.

5.3.10 Appliance in a residential garage
Where an appliance , other than a room-sealed appliance, is to be located in a
residential garage, all of the following shall apply:

Licensed to LUU MINH LUAN on 26 Feb 2002. Single user licence only. Storage, distribution or use on network prohibited.

(a)

(b)

The appliance is to be installed with –
(i)

the burners, including pilots, and combustion air intake to the appliance
at least 450 mm above the floor; or

(ii)

a rigid permanently fixed non-combustible vapour-proof wall at least
450 mm high. The wall is to surround the appliance and have sufficient
clearance to allow an adequate supply of combustion air and access for
servicing.

A warning notice stating –
“Naked Flames – Danger
Flammable vapour not permitted within 3 metres of this appliance”

is to be affixed in a prominent position adjacent to the appliance or
appliances.

5.3.11 Appliance in a roof space
Where an appliance is to be located in a roof space the following, as appropriate,
shall apply:
(a)

The roof section in which the appliance is to be installed shall be capable of
supporting the additional load.

(b)

The appliance is to be supported and placed so that the weight of the
appliance will not cause deformation of any part of the building structure.

(c)

The location of the appliance is to allow access for lighting and servicing.
Permanent fixed means of access is required where the appliance location is
beyond the extent of normal steps or ladder.

(d)

A walkway is to be provided from the access point to the appliance and shall
extend around the appliance to the point where access may be required for
lighting or servicing. The walkway is to be –
(i)

at least 600 mm wide from the access point to the appliance;

(ii)

where required around the appliance , at least 750 mm;

(iii)

permanently fixed to the building; and

(iv)

capable of supporting the weight of a person.
COPYRIGHT

81

Licensed to LUU MINH LUAN on 26 Feb 2002. Single user licence only. Storage, distribution or use on network prohibited.

(e)

AS 5601 – 2000
AG 601 – 2000

Where the appliance is installed on a combustible platform and the appliance
burner is less than 300 mm above the appliance base, then the platform
shall –
(i)

be covered with fire resistant material to at least the perimeter of the
appliance base, but extended at least 300 mm beyond the appliance
base in front of any louvre or fixed opening into the burner compartment;
and

(ii)

have an air gap of not less than 25 mm between the appliance base and
the fire resistant material; OR

(iii)

be covered with corrosion resistant sheet metal having a minimum
thickness of 0.6 mm extending to the perimeter of the appliance base,
but extending at least 300 mm beyond the appliance base in front of any
louvre or fixed opening into the burner compartment; and

(iv)

have an air gap of not less than 100 mm between the appliance base
and the sheet metal.

(f)

Permanent artificial lighting is to be provided at the appliance , with the switch
located adjacent to the access opening.

(g)

Clearances as stated in the manufacturer’s installation instructions are to be
observed, to provide adequate clearances for servicing and removal of
burners, fans, and any other components.

NOTES:
1 Ducting is not to reduce the clearances required in (g) or intrude on the walkway.
2 Some manufacturers have additional requirements for drains or the like on some
types of appliances, the instructions for those appliances need to be consulted for
these requirements.

5.3.12 Appliance on roof or elevated structure
Where an appliance is to be located on a roof or elevated structure the following, as
appropriate, shall apply:
(a)

The roof section or structure where the appliance is to be installed is to be
capable of supporting the additional load.

(b)

Other than in single residential premises, where the appliance is to be more
than 3.5 m from ground or floor level, permanent means of access is to be
provided, unless another means of access, which is acceptable to the
Authority, can be arranged by the consumer.
NOTE: Other means of access include scissor and boom lifts.

(c)

Other than in a single residential premises, where the appliance is to be less
than 2 m from the edge of the roof or structure, fixed guard rails, at least 1 m
high are to be fitted between the appliance and the edge of the roof or
structure.
NOTE: Requirement (c) may not be necessary if the edge of the roof or structure has
a parapet wall.

5.3.13 Appliance under a floor
Where an appliance is to be installed under the floor of a building the following, as
appropriate, shall apply:
(a)

There is to be a minimum clearance of 200 mm between the lowest part of the
floor structure and any part of the appliance .

(b)

To allow adequate access to the appliance –
COPYRIGHT