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AS 1851.6-1997 MAINTENANCE OF FIRE PROTECTION EQUIPMENT - MANAGEMENT PROCEDURES FOR MAINTAINING THE FIRE AND SMOKE CONTROL FEATU

AS 1851.6-1997 MAINTENANCE OF FIRE PROTECTION EQUIPMENT - MANAGEMENT PROCEDURES FOR MAINTAINING THE FIRE AND SMOKE CONTROL FEATU

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This Australian Standard was prepared by Committee ME/62, Ventilation and
Airconditioning. It was approved on behalf of the Council of Standards Australia
on 2 May 1997 and published on 5 June 1997.

The following interests are represented on Committee ME/62:
Air Conditioning and Mechanical Contractors Association of Australia
Air-conditioning
of Australia

and

Refrigeration

Equipment

Manufacturers

Association

Australian Building Codes Board
Australian Fire Authorities Council
Australian Institute of Building Surveyors
Australian Institute of Environmental Health

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Australian Institute of Refrigeration, Air Conditioning and Heating
Chartered Institution of Building Services Engineers
Department of Contract and Management Services, W.A.
Fire Protection Industry Association of Australia
Institution of Refrigeration Heating and Airconditioning Engineers, New Zealand
Insurance Council of Australia
Metal Trades Industry Association of Australia
Plastics and Chemicals Industry Association
Property Council of Australia
Thermal Insulation Contractors Association of Australia
WORKS Australia, Department of Administrative Services

Review of Australian Standards. To keep abreast of progress in industry, Australi an Standards are
subject to periodic review and are kept up to date by the issue of amendments or new editions as
necessary. It is important therefore that Standards users ensure that they are in possession of the latest
editi on, and any amendments thereto.
Full detail s of all Australian Standards and related publications will be found in the Standards Australi a
Catalogue of Publi cations; this information is supplemented each month by the magazine ‘The
Australian Standard’, which subscribing members receive, and which gives detail s of new publications,
new editions and amendments, and of withdrawn Standards.
Suggestions for improvements to Australian Standards, addressed to the head office of Standards
Australia, are welcomed. Notification of any inaccuracy or ambiguity found in an Australian Standard
should be made wit hout delay in order that the matter may be investigated and appropriate action taken.

This Standard was issued in draft form for comment as DR 95419.

AS 1851.6—1997

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Australian Standard
Maintenance of fire protection
equipment
Part 6: Management procedures
for maintaining the fire and smoke
control features of air-handling
systems

Originated as AS 1851.6 —1983.
Second edition 1997.

PUBLISHED BY STANDARDS AUSTRALIA
(STANDARDS ASSOCIATION OF AUSTRALIA)
1 THE CRESCENT, HOMEBUSH, NSW 2140
ISBN 0 7337 1209 6

AS 1851.6 — 1997

2

PREFACE
This Standard was prepared by Joint Standards Australia/Standards New Zealand
Committee ME/62, Ventilation and Airconditioning, to supersede AS 1851.6— 1983.
This Standard is the result of a consensus among representatives of the Joint Committee
to produce it as an Australian Standard.
The objective of this document is to provide a Standardized basis for the maintenance of
the fire and smoke control features of air-handling systems for use by system owners and
maintainers.
The fire-precaution features of air-handling systems in buildings not only need to be
designed, installed, commissioned and operated in accordance with AS 1668.1 — 1991,
The use of mechanical ventilation and air-conditioning in buildings , Part 1: Fire and
smoke control, but also need to be maintained at an adequate level of performance to
ensure their availability in an emergency, hence safeguarding the occupants and
minimizing property damage.

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In the preparation of this Standard, consideration was given to the following:
(a)

Poor management being the cause for the failure of a large number of maintenance
programs associated with building services.

(b)

Air-handling systems being designed to suit the requirements of individual
buildings, which implies that the detailed maintenance required varies from system
to system.

(c)

Maintenance procedures having to be sufficiently flexible to take account of the
particular features of an item of equipment and the environment in which it is
installed.

(d)

Unnecessary attention being as detrimental as insufficient maintenance in certain
cases.

(e)

Potential cost implications.

(f)

Requirements for systems integrity testing.

Accordingly, this Standard is aimed at the management aspect of maintenance programs.
Mandatory requirements for simple inspections are laid down. For initiating more complex
inspections and corrective actions, appropriate routines are suggested.
The term ‘informative’ has been used in this Standard to define the application of the
appendix to which it applies. An ‘informative’ appendix is only for information and
guidance.

 Copyright

STANDARDS AUSTRALIA

Users of Standards are reminded that copyright subsists in all Standards Australi a publications and software. Except where the
Copyri ght Act allows and except where provided for below no publications or soft ware produced by Standards Australi a may be
reproduced, stored in a retri eval system in any form or transmitt ed by any means wit hout prior permission in wri ti ng from
Standards Austr alia. Permission may be conditi onal on an appropriate royalt y payment. Requests for permission and information
on commercial soft ware royalt ies should be dir ected to the head off ice of Standards Australi a.
Standards Austr alia wil l permit up to 10 percent of the technical content pages of a Standard to be copied for use
exclusively in-house by purchasers of the Standard without payment of a royalty or advice to Standards Austr alia.
Standards Austr alia will also permit the inclusion of its copyri ght material in computer soft ware programs for no royalty
payment provided such programs are used exclusively in-house by the creators of the programs.
Care should be taken to ensure that material used is from the current edit ion of the Standard and that it is updated whenever the
Standard is amended or revised. The number and date of the Standard should therefore be clearly identif ied.
The use of materi al in pri nt form or in computer soft ware programs to be used commercially, wit h or wit hout payment, or in
commercial contr acts is subject to the payment of a royalt y. This policy may be varied by Standards Australi a at any ti me.

3

AS 1851.6 — 1997

CONTENTS
Page

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SECTION 1 SCOPE AND GENERAL
1.1 SCOPE . . . . . . . . . . . . . . . . . . . .
1.2 APPLICATION . . . . . . . . . . . . . .
1.3 REFERENCED DOCUMENTS . . .
1.4 DEFINITIONS . . . . . . . . . . . . . . .

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SECTION 2 MAINTENANCE PROGRAM
2.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 IMPLEMENTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 FOLLOW-UP ACTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6
6
6

SECTION 3 MAINTENANCE ROUTINES
3.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 LEVELS OF MAINTENANCE . . . . . . . . . . . .
3.3 FREQUENCY . . . . . . . . . . . . . . . . . . . . . . . .
3.4 PERFORMANCE MEASUREMENTS . . . . . . .

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SECTION 4 MAINTENANCE DOCUMENTATION
4.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 OPERATING AND MAINTENANCE MANUALS . . . . . . . . . . . . . . . . . . 9
4.3 MAINTENANCE SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.4 PLANT REGISTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.5 PLANT HISTORY RECORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.6 MAINTENANCE RECORDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.7 AVAILABILITY OF MANUALS AND RECORDS . . . . . . . . . . . . . . . . . . 10
4.8 EVIDENCE OF COMPLIANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
APPENDICES
A RECOMMENDED FREQUENCIES OR CONDITIONS FOR LEVELS 2, 3
AND 4 ROUTINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
B TYPICAL INSPECTION AND MAINTENANCE ROUTINES . . . . . . . . . . . . 12

AS 1851.6 — 1997

4

STANDARDS AUSTRALIA
Australian Standard
Maintenance of fire protection equipment
Part 6: Management procedures for maintaining the fire and smoke
control features of air-handling systems
S E C T I O N

1

S CO P E

A N D

G E NE R A L

1.1 SCOPE This Standard specifies management procedures for controlling the
inspection and testing of required fire and smoke control features associated with
air-handling systems in buildings, to ensure their effective availability.

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NOTES:
1

The procedures set out in this Standard and all consequential corrective actions, preferably,
should be carried out, or at least be supervised, by competent personnel.

2

In the assessing of the need for corrective action, regard should be given to the various
factors which may affect the precise performance from day to day. For this reason, critical
limits of performance will need to be known. In this context a critical limit sets the level of
a performance characteristic beyond which its effect could become detrimental to life safety.

3

It is recommended that the management system developed for the maintenance of the fireprecaution features of the air-handling systems is integrated with the management systems
developed for other associated building services such as lifts, smoke detection systems, fire
suppression systems and emergency power systems to create an integrated maintenance
management system.

1.2 APPLICATION This Standard applies to scheduled periodic maintenance
procedures following completion of satisfactory commissioning or recommissioning tests
for all fire-precaution features of air-handling systems which come within the scope of
AS 1668.1. It is not intended to be applied to commissioning or recommissioning tests,
although it may be used as a basis for such tests where appropriate.
NOTE: Mandatory requirements for the frequency of simple inspections are laid down as
Level 1 routines. Informative recommendations for more complex and detailed inspections are
laid down as Levels 2, 3 and 4 routines.

1.3 REFERENCED DOCUMENTS The following documents are referred to in this
Standard:
AS
1668
1668.1

The use of mechanical ventilation and air-conditioning in buildings
Part 1: Fire and smoke control

1851
1851.3
1851.5
1851.7
1851.8
1851.10

Maintenance of fire protection equipment
Part 3: Automatic fire sprinklers
Part 5: Automatic smoke/heat venting systems
Part 7: Fire-resistant doorsets
Part 8: Automatic fire detection and alarm systems
Part 10: Emergency warning and intercommunication systems

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AS
2676

AS 1851.6 — 1997

2676.1
2676.2

Guide to the installation, maintenance, testing and replacement of secondary
batteries in buildings
Part 1: Vented cells
Part 2: Sealed cells

NZS
4512

Fire alarm systems in buildings

1.4 DEFINITIONS For the purpose of this Standard, the definitions given in
AS 1668.1 and the following apply:
1.4.1 Automatic activation — testing by alarm actuation of a smoke or thermal detector,
sprinkler flow/pressure switch, manual call point or other initiating field device providing
control to the system, with the system in its automatic mode.
1.4.2 Competent person —a person who has had appropriate training or practical
experience (or both) in the subject, sufficient to provide safe and satisfactory
performance.

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1.4.3 Maintenance — that regular routine activity aimed at preserving the operational
standard and cleanness of equipment. It may include inspection, repair, preventive service
and cleaning.
1.4.4 Maintenance program —the assembly of relevant data and the setting out of a
formal strategy and recording system for the effective management of a series of
maintenance procedures.
1.4.5 Maintenance report — a written communication, giving details of the physical and
operational state of a piece of equipment when maintenance is carried out, which is sent
to the building owner or authorized agent.
1.4.6 Simulated activation —testing by operation of test switches either locally to
equipment or from the fire fan control panel or from the master smoke control system
panel.
1.4.7 Specified performance — the performance specified in the documentation against
which the installation was approved.
1.4.8 Testing — operational checking (which may include measurements) to ascertain the
level of performance of an air-handling item, plant or system for the purpose of
maintaining its specified performance. Other types of testing such as production or
commissioning testing are excluded from this definition.

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AS 1851.6 — 1997

S E C T I O N

6

2

M AI N T E N AN C E

P R O G R A M

2.1 GENERAL A maintenance program shall be prepared and it shall include the
assembly of relevant data and the setting down of a formal strategy and recording system
for effective management of a series of maintenance procedures.
2.2 IMPLEMENTATION Implementation of a maintenance program shall be as
detailed in Sections 3 and 4. The maintenance program shall be designed and initiated
with data obtained from full commissioning or recommissioning tests in accordance with
AS 1668.1 or from full Level 4 routines in accordance with this Standard.
NOTE: It is recommended that maintenance programs are coordinated with other trades and
attention is drawn to the requirements of AS 1851.3, AS 1851.5, AS 1851.7, AS 1851.8 and
AS 1851.10 and NZS 4512.

2.3

FOLLOW-UP ACTION

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2.3.1 General All maintenance records shall be examined regularly and action shall be
initiated where the need for remedial works is identified by the building owner or
authorized agent.
2.3.2 Programming Where a Level 1 inspection (see Section 3) indicates a
malfunction of any sort, appropriate action at Level 2, Level 3 or Level 4 shall be
initiated immediately regardless of the timing for the selected action in the maintenance
schedule.
2.3.3 Corrective action The corrective action shall be carried out with all reasonable
expedition to ensure that the safety features are maintained at optimum performance and
availability levels.
2.3.4 Recommissioning Where under a Level 4 routine a major component or system
is rebuilt or replaced, the item concerned shall be subject to a full recommissioning test.
2.3.5 Updating of records All plant records, operational diagrams and ‘as installed’
drawings as required by Section 4 shall be kept up-to-date.

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S E C T I O N

3

AS 1851.6 — 1997

M AI N T E N AN C E

R O U T I N ES

3.1 GENERAL Detailed maintenance instructions comprising inspection, testing and
preventative action shall be prepared by a competent person for each relevant component
of the air-handling system(s).
3.2 LEVELS OF MAINTENANCE Inspection, testing and other maintenance routines
shall be conducted at four levels as follows:
(a)

Level 1 Functional checks by means of sensory inspection such as sight, touch,
hearing or smell.

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NOTE: Diagnostic procedures are deemed to be an acceptable form of inspection.

(b)

Level 2 Level 1 plus cleaning, lubrication, simple routine maintenance and
adjustment which does not necessitate taking the equipment out of service.

(c)

Level 3 Level 2 plus testing and measurement procedures with consequential
adjustments as necessary to ensure optimum effective performance. These routines
may require equipment to be taken out of service, but will generally enable rapid
reinstatement if the need arises.

(d)

Level 4 Overhaul and test procedures which will normally necessitate an item
being taken out of service, possibly for prolonged periods. As a general rule, these
routines are necessary only for the correction of defects found during Level 3
routines and are not necessarily carried out at specified intervals.

NOTE: Typical routines are illustrated in Appendix B.

3.3

FREQUENCY

3.3.1 Level 1 routines
in Table 3.1 unless —
(a)

(b)

Level 1 routines shall be carried out at the frequencies set out

the regulatory authority—
(i)

approves a lower frequency; or

(ii)

requires a higher frequency; or

the building owner or authorized agent desires to carry out these routines more
frequently.

NOTES:
1

Operating conditions
frequencies.

or environmental

2

Changes of frequencies may be approved on the basis of information provided from
performance based maintenance and monitoring systems.

3.3.2 Levels 2, 3 and 4 routines
indicated by—

factors would normally dictate changes of

Levels 2, 3 and 4 routines should be carried out as

(a)

the results of Level 1 routines (see Clause 2.3); or

(b)

one of the following, in the order of preference hereunder:
(i)

Manufacturer’s recommendations.

(ii)

Appendix A recommendations.

(iii)

Information from performance monitoring systems.

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AS 1851.6 — 1997

8

TABLE

3.1

FREQUENCIES FOR LEVEL 1 ROUTINES
Item
Fans

Motors, induction

Batteries for
fire/smoke control
services

Routine*

Frequency†

Supply and return air

B2

Monthly

Smoke-spill‡ and air-pressurization

B2

Quarterly

Fan drives, frequent use

B3

Monthly

Fan drives, test and emergency use only

B3

Quarterly

Vented cells

See AS 2676.1/NZS 4512

Sealed cells

See AS 2676.2/NZS 4512

Fire dampers (including intumescent dampers)

B4

Yearly§

Fire mode air dampers for smoke-spill, fresh air and recycle air, complete
with their automatic gear

B5

Half-yearly

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Automatic smoke detectors for fire/smoke control services

See AS 1851.8/NZS 4512

Air filters

B6

Monthly

Electric duct heaters

B7

Yearly

Kitchen exhaust systems

B8

Monthly

Air-handling changeover under fire/smoke conditions

B9

Quarterly

Fire-isolated escape routes protected by air-pressurization systems

B10

Quarterly

Automatic smoke/heat venting systems

See AS 1851.5

*

This refers to maintenance routines described in Appendix B, unless otherwise indicated.



In cases where systems include required items of plant and equipment not included in this table, the
frequencies shall be to the approval of the regulatory authority.



This refers to dedicated smoke-spill fans. Return-air fans doubling as smoke-spill fans are treated as
return-air fans.

§

20% of the total, so that all fire dampers have been covered at the end of the fifth inspection.

3.4 PERFORMANCE MEASUREMENTS For Level 3 and Level 4 routines, the
techniques of performance measurement shall be such as will —
(a)

ensure reliable consistency of the results of measurement;

(b)

permit sound assessment of the measurement results for compliance with relevant
health and safety criteria; and

(c)

enable meaningful comparison with the corresponding measurement result of the
commissioning or recommissioning tests.

NOTE: To achieve the foregoing it is necessary to use instruments and techniques compatible
with the tolerances and performance applicable to any particular item.

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AS 1851.6 — 1997

S E C T I O N 4
M AI N T E N AN C E
D O C U M E N T A T I O N
4.1 GENERAL Documentation required to implement the maintenance program (see
Section 2) shall include operating and maintenance manuals, a maintenance schedule,
plant register, plant history sheet and diagram(s) of the installation. The documents shall
be maintained, up-to-date and kept in a secure place.
NOTE: Attention is drawn to the requirements of AS 1668.1 relating to the purpose, location
and updating of operating instructions and diagrams of the installation.

4.2 OPERATING AND MAINTENANCE MANUALS Operating and maintenance
manuals shall be provided for all plant, equipment and systems which are the subject of
this Standard.

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Operating and maintenance manuals shall include at least the following:
(a)

Physical details of the plant, equipment and systems.

(b)

Supplier’s recommendations on maintenance and management.

(c)

Recommended cleaning methods and dismantling instructions.

(d)

Operating and shut-down procedures.

(e)

Particulars of the maintenance program.

4.3 MAINTENANCE SCHEDULE The maintenance schedule shall list all required
items of plant and equipment and operational features to be subjected to the maintenance
routines described in this Standard. It shall include the frequencies at which the relevant
levels of routines are to be carried out.
4.4 PLANT REGISTER The plant register shall list all items of plant and equipment
which require inspection as a prerequisite to maintenance, and shall describe their
locations within the building. If not already incorporated in the operating and maintenance
manuals, the plant register shall include design data and unit capacities in sufficient detail
to order a replacement of equivalent performance.
Each item of plant and equipment in the plant register shall be allocated an identity
reference. The identity reference allocated shall be unique within the building concerned
and shall be indicated on the diagram(s).
NOTES:
1

Generally, an auxiliary item incorporated within the parent equipment need not be allocated
a separate identity reference.

2

For ease of identification, the marking of items of plant and equipment with allocated
identity references is recommended.

4.5 PLANT HISTORY RECORD The plant history record shall be used to record
details of the performance (test results) of each item at commissioning or any subsequent
recommissioning.
At subsequent inspections and tests the results shall be recorded and compared with the
results achieved at commissioning or any subsequent recommissioning. Any defects
observed and any repairs and modifications effected shall be recorded in the plant history
record.

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AS 1851.6 — 1997

10

4.6 MAINTENANCE RECORDS Up-to-date maintenance reports, plant history
records and log books shall be provided for all plant, equipment and systems which are
the subject of this Standard.
Maintenance records shall contain at least the following information:
(a)

Date, item of plant, equipment or system and nature of service performed.

(b)

Details of defects found and rectification procedure undertaken.

(c)

The name of the person or company performing the service.

4.7 AVAILABILITY OF MANUALS AND RECORDS Operating and maintenance
manuals and maintenance records shall be readily available for inspection by authorized
personnel upon request. For the purpose of maintenance management, the maintenance
records shall be retained for a minimum period of five years.
NOTE: Maintenance records, design data and records of unit capacities should be retained for
the life of the equipment.

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4.8 EVIDENCE OF COMPLIANCE Records that are required to be kept (see
Clause 4.7) shall provide evidence of compliance with this Standard.

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