AS 1851 6 supp 1 1997 maintenance of fire protection equipme

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AS 1851.6 Supp 1-1997 Maintenance of fire protection equipment - Management

procedures for maintaining the fire and smoke control features of air-handling

systems - Typical maintenance schedule (Supplement to AS 1851.6-1997)

Licensed to LUU MINH LUAN on 25 Feb 2002

MAINT EN AN CE OF FIRE PROT EC TION EQU IPME NT PAR T 6: MAN AG EM ENT PRO CE DU RE S FOR MAINT AINING THE FIRE AN D SMOK E CON TR OL FEAT UR ES OF AIR-HAN DL ING

SYSTE MS—T YPICAL MA INTE NA NC E SCHE DU LE (SUPPLEME NT TO AS 1851.6—1997)

A S 1851.6 Supp 1 Tabulated version of maintenance schedule of

A S 1851.6—1997 ITEM DESCRIPTION MONTHLY QUARTERLY HALF-YEARLY YEARLY TWO-YEARLY FIVE-YEARLY

As requir ed, or when unable to perf orm duty,

or if inspection indicates necessity

FANS

SUPPLY AN D RETU RN AI R

L evel 1

(a) C heck beari ngs for noise and overheati ng

(b) C heck fans for exce ssive vibration

(c) C heck guards a nd other safe ty featu res for sati sfac tory

c ondition

(d) C heck fan belts for wea r

(e) C heck flexi ble co nnec tions,

w here fitted , for l eaks , t eari ng

or fraying

L evel 2

(a) C heck l ubricati on of bea rings and

a pply as ne cess ary

(b) C heck fan belts for correct

t ensi on

(c) C heck c ouplings for t ightness (d) O n fan e nergizat ion, ope rati on

a nd de-ener giza tion, che ck t hat

t he flexi ble con nect ions are not overstres sed owing to fan movement

L evel 3

(a) C heck pulle y whee ls for

a lignment (b) C heck c ouplings for a lignment (c) V erify t hat fan output meet s desig n requi reme nts

L evel 4

(a) C heck c asin g an d i mpel ler for

c orrosion and treat as nec essa ry (b) C heck balan ce of impe ller if work

c arried out on it

(c) C heck l ubricati on of bea rings and

a pply as ne cess ary

(d) C heck fan belts if a pplicabl e (e) C heck reass embl ed unit for

e xces sive vibration (f) C heck t hat guards an d other s afet y featu res are s atis fact ory (g) C heck for co rrect rotati on (h) Measu re a nd rec ord fan output (i) R epai r or replac e fle xible

c onnectio ns as nece ssary

SMOK E-SPILL

A ND A IR PRESSU RIZ A-TION

L evel 1

(a) C heck beari ngs for noise and overheati ng

(b) C heck fans for exce ssive vibration

(c) C heck guards a nd other safe ty featu res for sati sfac tory con diti on

(d) C heck fan belts for wea r

(e) C heck flexi ble co nnec tions, wher e fitte d, for le aks, tea ring or fraying

L evel 2

(a) C heck l ubricati on of bea rings

a nd app ly as ne cess ary

(b) C heck fan belts for correct

t ensi on

(c) C heck c ouplings for t ightness (d) O n fan e nergizat ion, ope rati on

a nd de-ener giza tion, che ck t hat

t he flexi ble con nect ions are not overstres sed owing to fan movement

L evel 3

(a) C heck pulle y whee ls for

a lignment (b) C heck c ouplings for a lignment (c) V erify t hat fan output meet s desig n requi reme nts

MOTO RS, IN DUC TION

FANS DRI VES , FREQ UE NT U SE

L evel 1

(a) C heck for noisy running

(b) C heck for ex cess ive vibration

(c) C heck for ex cess ive he atin g

L evel 2

(a) C heck t hat ex ternal vent ilat ion

a irwa ys are clea r

(b) A pply lubricat ion if nece ssary

L evel 3

(a) Measu re a nd rec ord i nsulatio n resis tanc e of s tato r wind ings

N OTE: Manufactu rer’s

c auti onary notes should be observed espe cial ly whe re solid

s tate devi ces are use d

(b) Measu re a nd rec ord running

c urrent

(c) C heck s tart er, protect ion

s etti ngs, con tact s and t erminals

w here ap propriat e

L evel 4

(a) O verhaul or replace with ex chan ge unit

(b) Measu re a nd rec ord t hermisto r resis tanc es wher e fitte d (c) Test run

(d) Measu re a nd rec ord i nsulatio n resis tanc e of s tato r wind ings

FAN DR IVE S, TEST AN D EMER GE NCY

U SE O NLY

L evel 1

(a) C heck for noisy running

(b) C heck for ex cess ive vibration

(c) C heck for ex cess ive he atin g

L evel 2

(a) C heck t hat ex ternal vent ilat ion

a irwa ys are clea r

(b) A pply lubricat ion if nece ssary

L evel 3

(a) Measu re a nd rec ord i nsulatio n resis tanc e of s tato r wind ings

N OTE: Manufactu rer’s caut iona ry notes should be observe d

e spec iall y wher e solid sta te devic es are used

(b) Measu re a nd rec ord running

c urrent

(c) C heck s tart er, protect ion se ttin gs,

c onta cts an d te rminals wher e

a ppropriate

BATT ER IES FOR FIRE/

SMOKE CO NT ROL

SERV IC ES

V ENT ED CE LLS C arry out maint enan ce in acco rdance with the provisions of AS 2676.1 or NZS 4512 a s a pplicabl e

SEAL ED CE LLS C arry out maint enan ce in acco rdance with the provisions of AS 2676.2 or NZS 4512 a s a pplicabl e

FIRE DAMPERS (INCL UDING INTUM ESCENT

D AMP IERS)

(a) Inspect for obstructi ons

(b) C onfirm positio n c orrect

N OTE: Inspect 20% of the tota l

s o t hat al l fire da mpers ha ve been

c overed at the end of the fifth

i nspectio n

(a) C heck for co rrosion

(b) C heck t hat mounting is s ound

(c) C heck t hat integrity of fire w all

i s not impa ired wher e ap plic able (d) C heck c orrect ope rati on (excl uding intumesc ent fire dampe rs)

(e) R esto re t o c orrect posit ion (excl uding intumesc ent fire dampe rs)

R epla ce as a ppropriate

FIRE MO DE AIR D AMP ERS FOR SMOKE

SPILL, FRESH AI R AND RE CYC LE A IR ,

COMP LETE WI TH THE IR AU TO MAT IC

CONT RO L G EAR

L evel 1

(a) Inspect for obstructi ons

(b) Ensure drive force is ava ilab le from t he motors

L evel 2

(a) Ensure da mper(s) moves t o its fire mode posit ion upon removal

of pow er source

(b) C heck t hat there is no ex cess ive

l eaka ge past dam pers when in the

c lose d position

(c) C heck a nd ad just a ll motor drive

l inka ges and en sure no ‘slippage’

or exc essi ve hysteres is i s occur ring

(d) C heck l inka ge and da mper beari ngs a nd l ubricate as neces sary

(e) Ensure that a ny damper positio n

i ndic ators are ope rati onal and

c orrectly posit ione d wh ere fitted

(f) If motors are pneumatic , c heck for air l eaks in the air l ines and

c onnectio ns

(g) If co ntrol system is pne umat ic,

c heck for c orrect ope rati on of a ir

c ompresso rs, filters, dryers and pressure reducing systems

L evel 4

R epla ce as a ppropriate

A UTO MA TIC SMO KE DET ECT OR S FOR

FIRE /SMOK E CONT ROL SERV ICE S C arry out maint enan ce in acco rdance with the provisions of AS 1851.8 or NZS 4512 a s a pplicabl e.

AIR FILTERS

L evel 1

(a) Inspect upstream and downstre am

of the filter an d remove any la rge

i tems obstructin g the ai r flow

(b) C heck filte r inte grity (filter

s eali ng) and any signs of filte r deter ioration

L evel 3

(a) C heck t he pressure differential

a cross the filter aga inst t he filter manufactu rer’s instruction

(b) C heck t hat an y adh esiv e liquid or

c oati ng be ing used has been

s upplied i n a cont aine r indicati ng

a c erti fied flas hpoint not les s than

160°C

L evel 4

(a) R epla ce filter s a s per manufactu rer’s instructions (b) R enew any liq uid and recoa t

a ny coa ting using an adh esiv e

w ith a cert ifie d fla shpoint not

l ess than 160°C Re plac e any fabric w ith correct type or was h

a s app ropriate

ELECTR IC DUCT HE ATE RS

L evel 1

(a) C heck t he outside s urface of the heate r casi ng for disc olourati on

or any indicat ion that ove rhea ting has take n plac e

(b) C heck for an y l oose exte rnal

c onnectio ns an d fitti ngs

L evel 2

(a) C heck for an y l oose inte rnal

t hermal i nsulatio n

(b) C heck t he ele ment s for obstructi ons and a ccum ulat ion of foreign matt er

(c) C heck t hat the heat er sw itch es off upon sw itch ing off the fan

(d) C heck opera tion of ai rflow

s ensi ng dev ice by sim ulat ing l oss

of air flow

(e) C heck opera tion of

over-t empe raover-ture cu over-touover-t by s imulaover-tin g overheati ng of t he heate r bank

L evel 4

R epai r or replac e as nec essa ry

K ITC HE N EXH AUS T SY STEMS

NOTE : Fire protection or s uppressi on sys tems

installed wit hin kitchen exhaust s ystems may have

special requirements.

L evel 1

(a) C heck greas e-arrest ing filters for

e xces sive greas e a ccum ulat ion

(b) C heck hood a nd its exha ust plenu m for exc essi ve greas e

a ccum ulat ion

(c) C heck t hat grease -arresti ng filte rs

a re s ecur ed i n posit ion a nd free

of dam age

(d) C heck greas e gutter s for an y

e xces sive greas e a ccum ulat ion

L evel 3

(a) C lean hood and i ts ex haust plenu m

(b) C heck for ex cess ive ai r l eaks a t greas e-arrest ing filte rs

(c) C heck duct for accu mula ted greas e and clea n it

L evel 2

C lean grease- arrestin g filters

N OTE: O wing to t he wi de varia tion i n usa ge, the frequenc y

of thi s routine is subject to the requi reme nts of t he regulato ry

a uthority This is a ca se whe re a Level 2 routine may be more frequent than a Level 1 in some

c ircumsta nces

L evel 4

R epla ce an y damag ed grease -arresti ng filte rs

MAINT EN AN CE OF FIRE PROT EC TION EQU IPME NT PAR T 6: MAN AG EM EN T PRO CE DU RE S FOR MAINT AINING THE FIRE AN D SMOK E CON TR OL FEAT UR ES OF AIR-HAN DL ING

SYSTE MS—T YPICAL MA INTE NA NC E SCHE DU LE (SUPPLE ME NT TO AS 1851.6—1997)

A S 1851.6 Supp 1 Tabulated version of maintenance schedule of

A S 1851.6—1997 ITEM DESCRIPTION MONTHLY QUARTERLY HALF-YEARLY YEARLY TWO-YEARLY FIVE-YEARLY

As requir ed, or when unable to perf orm duty,

or if inspection indicates necessity

A IR- HA NDL ING CHAN GE OVE R UN DE R

FIRE /SMOKE COND ITI ON S

N OTES :

1 These routines a re to en sure sati sfac tory c hangeove r and

opera tion of t he air -handling install atio n The maint enan ce of

a re c overed under the routines for t he individual ite ms

2 A rrangeme nts should be made for the Fire Brigad e t o be

notified w hene ver a n auto mati c a ctiv atio n tes t is to be

c onducted t o adv ise that the al arm wil l sound and t o advi se

t hat the system may be inoperat ive for a cert ain ti me

L evel 1

(a) S imulate fire/sm oke s itua tion (for each system whe n sepa rate )

t o e ffect cha ngeover or shutdown

a s app ropriate

N OTE: The purpose of a

s imulated tes ting routine i s t o

c heck the functi oning of the ai r-handl ing chan geover system

c omplete wi th it s asso ciat ed dedic ated s moke detec tor cir cuit s

It is not recom mended practi ce in

t his ca se t o si mula te the fire/ smoke s itua tion by bringing a heat, flame or smoke source up to

t he detec tors

(b) S witc h system back to ‘normal’

a nd che ck that a ll e quipment i s i n

t he c orrect desig nate d mode

(c) C heck t hat ap propriat e indica ting

l ights si gnify normal opera tion

C heck t he followi ng during au toma tic

a ctiv atio n of fire/ smoke con diti ons

L evel 2

(a) Each it em of e quipment a nd any

a ssoc iate d indicat ors ha ve opera ted correct ly a nd t hat fans

a ccor danc e wit h the correct opera tional s eque nce for the air-handl ing system(s) c once rned

(b) Motorized outside -air, recyc

le-a ir, le-air-cont rol le-and spill-le-air dampe rs and thei r asso ciat ed motors are ope rati ng correct ly

(c) O pera tion of the ma nual sw itch provided for fire brigade personnel de -ene rgizes s

upply-a ir fupply-ans

(d) The system pe rformanc e criter ia

of zon e smoke c ontrol systems

s hould be verified bet ween ea ch

z one

N OTES :

1 W here t here hav e been no

c hanges to the building

s tructure, int erna l l ayout and

a ir-handl ing system in t he period sinc e the last te st,

a pproval may be given t o

t esti ng l ess than al l zon es

W here a pproval is given to

t esti ng a proportion of z ones

a repre sent ativ e number of

z ones s hould be te sted Te st

z ones s hould be se lect ed a t

t he e xtremes of the s yste m performance criter ia

2 W hen te stin g i s c arried out

on a proportional number of

z ones basis it i s recom mended t hat the sam e

z ones be sele cted an d test ed

e ach t ime

3 The purpose of an aut omat ic

t esti ng routine is to ch eck the funct ioning of the air -handl ing chan geover system

by the ac tiva tion of a fiel d devic e It is reco mmen ded pract ice in this c ase to bring

a heat, flame or smoke

s ource t o t he dete ctor or t o flow w ater a nd reduce pressure to ope rate flow/ pressure sw itch es

4 S ome buildings may have

s tand by pow er gen erat ion provisions w hich a re required

t o opera te fire a nd s moke

c ontrol eq uipment and

c ontrols in t he e vent of a normal powe r failu re

Level 2 routine main tena nce

s hould the refore a lso incl ude

t esti ng under st andby power

t o verify fire mode performance

L evel 4

(a) A djust or repair as neces sary (b) C arry out t he Level 2 routines

FIRE -ISOL ATE D ESCAPE

ROUT ES PRO TEC TED BY

A IR- PRESSURI ZA TIO N

SYST EMS

(a) S imulate ini tiat ion of opera tion of

a ll system s

(b) W hile al l air -pressurizat ion

s yste ms a re operatin g, ch eck t he following for each system:

(i) Exces sive noise (Re fer

A S 1668.1.) (ii) Ease of opening doors

(iii) Movement of ai r from each pressurized are a t hrough a

s elec ted open door

N OTES :

1 In order to as sess the performance of t he system,

i t is recom mended that the

s ame door be used e very

t ime

2 The use of an elem enta ry

s ensi ng dev ice, e g ribbon,

i s sufficient (c) S witc h al l systems ba ck to normal

(a) C heck t hat the fans of all air -pressurizatio n system s s tart under a utomatic act ivat ion

w hen—

(i) t he building fire ala rm is

a ctua ted by the auto mati c fire sprinkle r system of the building, or by an y s moke

or the rmal alar m group forming pa rt of t he building auto mati c fire detec tion system;

(ii) a ny rec ycle -air sens or group, or a ny s upply-air

s ensor group is ac tuat ed;

a nd (iii) a ny rec ycle -air sens or group and a ny supply-air

s ensor group are a ctua ted

(b) W ith all air -pressurizat ion and other system s, requi red to opera te in the fire mode, opera ting sim ulta neously, measu re an d recor d for eac h air-pressurizatio n system — (i) t he a vera ge flowra te

t hrough a sele cted ope n door, w hen t he doors

l eadi ng from ev ery

s tair way t o two sele cted

s ucce ssive storeys a nd the main dischar ge doors a re fully open simultan eously;

N OTE: In order to asse ss

t he performance of the

s yste m, it i s recom mended

s ame meas uring tec hnique

be used eve ry time (ii) t he force required t o open

e ach door;

(iii) t he t ime take n for

c onditions found in Items (i) a nd (ii) above to be resto red afte r ope ning an d reclo sing up to three doors; an d (iv) t he noise leve l at doorways

i dent ifie d as subjec t to the highe st noise le vel, at t he relev ant points of e ntry

i nto fire-isol ated es cape route s, with the a ssoc iate d door open

(c) C heck t hat wh en the s moke

s ensor group of any a ir-pressurizatio n system is

a utomatic ally act uate d, the

a ssoc iate d pressurizat ion fan is

s hut down

N OTE: A ny fan sta rting and

s topping che cks under Ite ms (a) out in s uch a ma nner as will

a void ove rhea ting of motors due

t o e xces sive ly frequent st arts (d) C heck t hat operat ion of the manua l swit ch provided for fire brigade personnel de-ener gize s fans s upplying air t o the pressurized fire-is olat ed esca pe route s

(a) S imulate act ivat ion of all air -pressurizatio n an d othe r systems requi red to ope rate in the fire mode W hen operatin g

s imultane ously, mea sure a nd recor d the following for e very door:

(i) A mbie nt noise lev el

(ii) D oor opening force (iii) A ir velo city through door

N OTES :

1 W here t here hav e been no

c hanges to the building

s tructure, int erna l l ayout

a nd air -handling system in

t he period sinc e the l ast tes t,

a pproval may be given t o

t esti ng l ess than al l doors

W here a pproval is given to

t esti ng a proportion of doors

a repre sent ativ e number of doors should be t este d Tes t doors should be s elec ted at performance criter ia i.e high noise lev el, high openi ng force and low air veloc ity

2 W hen te stin g i s c arried out

on a proportional number of doors bas is it is recom mended t hat the sam e doors be s elec ted a nd te sted

e ach t ime

(b) W ith all air -pressurizat ion and other system s operat ing

s imultane ously, che ck that any

s peci fic a ir relie f is fully opera tional a nd enab les the requi red airflow from pressurized

a reas to be sustain ed

R epai r or replac e any item s not capa ble

of bei ng ad just ed for sat isfa ctory performance

A UTO MA TIC SMO KE/ HEA T

V ENT IN G SYST EMS C arry out maint enan ce in acco rdance with the provisions of AS 1851.5

O UTD OO R AI R IN TAK ES

L evel 2

(a) R emove any com bustible mater ial from t he vicin ity of

t he i ntak es

(b) C heck i ntak e louvres for

c orrosion and da mage (c) C heck a nd cl ean insect s cree ns, repla ce if da mage d