PRLS

ct
Pedonmnce rnw
Impe?Ier Drneer:3CX) ? 000 mm
Easy ces purey pd
Mxrnur Vø!wn.; 5,O0Oo*7h
Mimum Stt?c Pres$ut?: ?fl(
Fn StnJc?nr
Rigid welding housing
Rgki welding .s fruc?ure
Fri Application
Outdoor lnstaffation with weather cc’er
High Temperature atmosphere
Comoct vespn
Reduced Fn sie
9CiOtJS Mchmc LJ.rive Room
f3&t Length
ticed and ?ncre.es belt iif
Easy Maintenance
Motor chamber access door
Scroll access door avellable
AMCA Sound
Air Performance Sea]
Dynafr Gulf FZCO Certifies that the mode? PALS shown
hareTh iS licensed to bear the AMCA SeaL The rabnq.S
shown are based on tests end procedures performed
with AMCA Publication 211 and AMA 311 end
comply with the requirements of the AMCA Certified
Ratings Program
5
a a
Belt Driven
PRLS seeds fans are designed fix ducted system These fans shall be slop/c inlet cenfrifug& type Cr90 are
suitable (or return—air applications with clean air.
Casing:
The casing shall be ccnstmcted of stee) the thlekness shall be adequate to support thive and motor The
scroll shall be fully welded. The fan surface shall be alkali cleaned and phosphated, electrostatically black
epoxy powder applied (options: co/our changes are available).
Impeller:
The impeller is h
era cur’ ed centnm get oe and as drrertlv mdhnec #r) r rho The nleccne Qi r4r;
the trtfnct crncvtt’k FWtr fow note at rn
et The ropelter S ba1ncn sieriy -ri lvaPJr4?l3, ‘ lve
t
GZS as per ISO standards NO. iS$(T
Shaft iBeit Driven Model!:
The fan snaft shall be heat treated through soaktng furnace to tne hardness level of 148370, and the
sunace shall be hard ;,ur corros’on teated The fan snaftshal be naranccd toga rher L4jtri I J’CC an
the shaft design speed shall at least exceed 25% of the maximum fan opera bon speed.
Pulleys (Soft Driven Modeil:
The (sri pulleys shall be sized for a rrvnirmnri of 150% of drrver l;orsepower. Pulleys sharI be of cast :rorr
type, keyed and securely attached to the wheel and motor shetts Motor culleys snail be adjustable 1w
final system haiarrclog. Conical ((JO) type bushings shalt be equipped for essy removal of the pulleys.
Bear
n
1
qs;
The bearings shall be selected for a minimum (L— 10) life fri excess of S0l00 hours at maximum cataloged
operating speed Bearing type shall be permanently sealed, re—lubricabie below block metal ball bearings
t we Supporri
Dr
Drive assemblies shall he supported by heavy gauge powder coated steel mounted on vibration iso/ators,
The belt tension shall be adjusted through motor support plate, the depari shall make sure the Ian shaft
and motor shaft is always parallel.
Protection Cover
A shaft/bearing cover and a belt cover shall be provided as standard configuration for indoor application.
if the fan is outdoor installed the motor and other drive parts shall be covered by weatherhood to assure
tasting durabiiic
Motor
Motor shall be carefully matched to the fan load, IP 55. crib insulation class F. The motor l,>esru’s shah
he re—lubnbable ball type.
Oueiitr Srandarr.ls-.
SWSt Centrifugal fans shall be tested and approved according to AMCA Standards 210 & 300. Each fan
shall have AMCA Sound & Air Performance SeaL
2
/nlef/ Outlet Seticly Seweri
Metal safety screen can be U3slalled either on inlet or outlet of the fan, The screen with rigid strength
can prevent debris into the (an and duct The density of the screen is also qualified (or labour
pro tection,Either Thief or curie! screen can be ordered seperafiey,
%atq’
Weather Isaac
PALS belt drive fans are equipped for indoor installation, which include a sheitibearing cover as well
as belt cover. When the fan is outdoor mstalted weatherhooo shall be selected to prevent motocpulley
,
and bearing (corn sunshirre,rain
Drain
Located on the bottom of scroll to discharge contaminated substance such as condensed water, çjrease etc.
ftilrrdOtrflet Flange
The companion flanges are attached to the ductwork to provide an exact mate to the flanged connection
on the fan.
Cdatmg
Poly4iuoro ethene is done for specihi application on either impeller or complete fan,
PIlLS
025
900 1B4)
190
LOU
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1180”
L135”
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Fan Anaagemeols
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Belt drive 4 Pole motor
on
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PRLS
Deroets of the hnp&ler 300mm
Cenlritugal Utilrty fan
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INSTALLAI ION tJ[ LINES
Dynair PALS series fans are suitable 1o supply, exhausl and return air application. Tests were
conducted to assure safe and reliable fris capable of withstanding severe conditions. Dnair series
tans are desIgned
application rangmg from clean ar to contamnated air
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Dynair series fans are desgned to meet restaurant, hotel kitchen grease,
Fans shall be checked & cleaned before installation to ensure wheels rotate freely.
Ventilations shall not interfere With each othar. For easy maintenance a reasonable space shall be left br
disassenIing & replacing wheels & bearings. Outdoor installed fans shall have weatherhood to mesa
electrical equipment weatherprotected.
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