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COMPARISON OF V R F SYSTEMS OVER CONVENTIONAL CHILLERS

Sl.no PARAMETERS EQUIPMENT

V R F CHILLERS1 FLOOR AREA REQUIRED Less More

2 OUT DOOR LOCATION Terrace /balcony Terrace /basement/separate rooms

3 NOISE LEVEL Low Very high

4 DESIGN FACTOR/ Ad!n"!#$%

A& DIVERSITY

Diversity min: 5 % to Max:13% in o!t"oor Min: # % $ Max:1%

'& STAND 'Y UNIT o stan" by !nit re&!ire"'having combination o(

inverter/constant spee" compressors)

*tan" by essential+Min,5%

C&INVERTOR T$()nolo#* -oo" in partial application ot !se(!l in partial application

D& S"!+",n# (-++$n""o+-$ .n se&!ence very low Very high

E& S$+,($ / (o0l!,n" (lo%-+$ ",0$ Very (ast Ta0es more time

INDOOR

5,1 .D 2T.2* 4vailable in wi"e range ot available5,# D*.- 647T28 ach rooms9cabs9wor0 station can be separately

"esigne"

Design per (loor generally

TEMPERATURE ACCURACY ')'+) ,5"eg c set temp ')'+) 3"eg c set temp

ACCESSORIES REQUIRED

;,1 !mps ot 4pplicable 4pplicable

;,# *trainers ot 4pplicable 4pplicable

;,3 *o(teners ot applicable 4pplicable

;,< 7ooling towers ot applicable 4pplicable

;,5 -enerator 6or 1% 6or 1#%

5 CONSUMA'LES

=,1 >ater ot applicable 4pplicable

=,# 8esins ot applicable 4pplicable

=,3 >ater treatment chem, ot applicable 4pplicable

6 PIPING

?,1 Design 6lexibility @es o

?,# 7ost Low Aigh

17 MAINTAINANCE

1,1 Maintenance parts, 2nly re (ilters re+(ilters9 p!mps9 strainers9 Motors9

4ll parts incl!"ing piping,

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1,# 6re&!ency Bi+monthly (or (ilters Bi+monthly (or pre+ (ilters9 &trly (or all

 parts,

17.3 S$l8 d,!#no%",( 8-n(",on 4vailable+asy to "etect (a!lt ,4

11 AUTO RESTART 4vailable ee"s 2perator,

12 OPERATION1#,1 2perators ot re&!ire" ssential

1#,# 2peration n" !ser can operate 2nly traine" tech can operate

1#,3 7ost Less More

13 LOAD 9DIVERSITY FACTOR& 5% +13% variable 15% +1% by stage

14 RUNNING COST 9o:$+&

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