1-11-2-1-12
11
(8) Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures. If a fault
exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If
the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution shall be used.
This shall be reported to the owner of the equipment so all parties are advised.
Initial safety checks shall include:
•
• That capacitors are discharged. This shall be done in a safe manner to avoid possibility of sparking.
.metsys eht gnigrup ro gnirevocer ,gnigrahc elihw desopxe era gniriw dna stnenopmoc lacirtcele evil on tahT
• .gnidnob htrae fo ytiunitnoc si ereht tahT
ot roirp nopu dekrow gnieb tnempiuqe eht morf detcennocsid eb llahs seilppus lacirtcele lla ,stnenopmoc delaes ot sriaper gniruD
any removal of sealed covers, etc.
ni deretla ton si gnisac eht ,stnenopmoc lacirtcele no gnikrow yb taht erusne ot gniwollof eht ot diap eb llahs noitnetta ralucitraP
such a w
ay that the level of protection is affected. This shall include damage to cables, excessive number of connections, terminals
not made to original specifi cation, damage to seals, incorrect fi tting of glands, etc.
.yleruces detnuom si sutarappa taht erusnE
fo ssergni eht gnitneverp fo esoprup eht evres regnol on yeht taht hcus dedarged ton evah slairetam gnilaes ro slaes taht erusnE
fl ammable atmospheres.
.snoitac fiiceps s’rerutcafunam eht htiw ecnadrocca ni eb llahs strap tnemecalpeR
NOTE:
The use of silicon sealant may inhibit the effectiveness of some types of leak detection equipment. Intrinsically safe componen
ts do
not have to be isolated prior to working on them.
elbissimrep eht deecxe ton lliw siht taht gnirusne tuohtiw tiucric eht ot sdaol ecnaticapac ro evitcudni tnenamrep yna ylppa ton oD
voltage and current permitted for the equipment in use.
Intrinsically safe components are the only types that can be worked on while live in the presence of a fl ammable atmosphere.
The test apparatus shall be at the correct rating.
fo noitingi tluser yam rerutcafunam yb strap de fiicepsnU .rerutcafunam eht yb de fiiceps strap htiw ylno stnenopmoc ecalpeR
refrigerant in the atmosphere from a leak.
REMOVAL AND EVACUATION
CAUTION
.desu eb llahs serudecorp lanoitnevnoc – esoprup rehto yna rof ro – sriaper ekam ot tiucric tnaregirfer eht otni gnikaerb nehW
However, it is important that best practice is followed since fl ammability is a consideration.
The following procedure shall be adhered to:
• .tnaregirfer evomeR
• Purge the circuit with inert gas.
• Evacuate.
• Purge again with inert gas.
• Open the circuit by cutting or brazing.
.srednilyc yrevocer tcerroc eht otni derevocer eb llahs egrahc tnaregirfer ehT
.efas tinu eht redner ot )NFO( negortin eerf negyxO htiw ”dehsu fl“ eb llahs metsys ehT
.semit lareves detaeper eb ot deen yam ssecorp sihT
.ksat siht rof desu eb ton llahs negyxo ro ria desserpmoC
eht litnu ll fi ot gniunitnoc dna )NFO( negortin eerf negyxO htiw metsys eht ni muucav eht gnikaerb yb deveihca eb llahs gnihsulF
working pressure is achi
eved, then venting to atmosphere, and fi nally pulling down to a vacuum.
.metsys eht nihtiw si tnaregirfer on litnu detaeper eb llahs ssecorp sihT
elbane ot erusserp cirehpsomta ot nwod detnev eb llahs metsys eht ,desu si egrahc )NFO( negortin eerf negyxO lan fi eht nehW
wor
k to take place.
.ecalp ekat ot era krow epip eht no snoitarepo gnizarb fi lativ yletulosba si noitarepo sihT
.elbaliava noitalitnev si ereht dna secruos noitingi yna ot esolc ton si pmup muucav eht rof teltuo eht taht erusnE
CHARGING PROCEDURES
NOTE
See “■ Outdoor Unit” under the Section 1-11. Installation Instructions.
SM830277-00_大洋州向け R32シングル_TD&SM.indb 12 2019/02/27 11:51:02
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