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VersaTemp™ Water-to-Water Heat Pumps

ARA-CAT-001 0816

New

FWB

1065 Maple Avenue P.O. Box 510 Sparta, WI 54656

Phone 608-366-2400 • [email protected]

www.multistack.com

Originators…

Multistack invented the modular water chiller. It started with a radically simple idea: chiller modules that could be brought into the 

equipment room one at a time, through standard doorways and down elevators, to form a fully integrated chiller system. The idea 

launched a revolution and transformed Multistack into a leader in the commercial water-chiller industry.

Innovators…

Multistack perfected the modular chiller and leads the industry in innovative and environmentally friendly modular solutions. 

Since founding in the late 1980s, Multistack has engineered, manufactured, and distributed an impressive array of modular air 

conditioning firsts: the first on-board strainer, the first modular automatic blow-down device, the first modular chiller for variable 

flow, the first modular chiller-heater (heat pump), the first modular heat-recovery chiller, the first modular air-to-water heat pump, 

the first modular chiller to utilize MagLev™ compressor technology, and the first modular chiller to utilize R-410A.

Never the Imitators…

Multistack sets the standard in the industry for superior customer service, fast and on time shipment, superior product quality, and 

new product development. Our pioneering leadership in environmental issues is well documented. If you want  the best, be sure to 

specify the original – Multistack®.

3.02  Water Treatment Requirements

A.   Supply water for the chilled water circuit shall be analyzed and treated by a professional water treatment specialist who is familiar with the 

       operating conditions and materials of construction specified for the chiller’s heat exchangers, headers and associated piping.  Cycles of 

       concentration shall be controlled such that recirculated water quality for modular chillers using 316 stainless steel brazed plate heat exchangers 

        and carbon steel headers is maintained within these parameters: 

 

1.  pH 

 

 

Greater than 7 and less than 9

2.  Total Dissolved Solids (TDS) 

Less than 1000 ppm

3.  Hardness as CaCO

3

 

 

30 to 500 ppm

4.  Alkalinity as Ca CO

3

 

 

30 to 500 ppm

5.  Chlorides   

 

Less than 200 ppm

6.  Sulfates   

 

Less than 200 ppm

3.03   Warranty and Start-Up

A. Manufacturer’s Warranty:  Manufacturer shall provide full parts-only warranty coverage for entire chiller for a period of one year.  All parts shall be 

     warranted against defects in material and workmanship.  Similar parts-only coverage shall be provided for the chillers compressors for a period 

    of five years.  The warranty period shall commence either on the equipment start-up date or six months after shipment, whichever is earlier.

B. Manufacturer shall provide the services of a factory authorized service engineer to provide complete start-up supervision.  The factory authorized 

     service engineer shall also be responsible for assembly of the chillers cabinetry package and electrical bus bar system.  After start-up a 

    manufaturer’s representative shall provide a minimum of eight hours of operator training to the owner’s designated representative(s).

Guide Specifications

Multistack has a policy of continual improvement and reserves the right to change product design, literature and specifica-

tions without notice.  For more information on this and other Multistack products, contact your nearest Multistack dealer. 

Summary of Contents for AirStack VersaTemp ARA 020X

Page 1: ...1 VersaTemp Water to Water Heat Pumps 1 Air Cooled Template VersaTemp Water to Water Heat Pump with Auxiliary Air Cooled Coil Product Data Catalog ARA 020X 030X 060X Modules...

Page 2: ...er to Water Heat Pumps Contents ARA Features Benefits 3 Model Number Nomenclature 4 5 General Information 6 7 Unit Dimensions Configurations 8 15 Electrical Piping Requirements 16 Guide Specifications...

Page 3: ...ith refrigerant and are factory run tested prior to shipment on an AHRI certified test stand ARA modules are ETL listed according to UL Standard 1995 and CSA certified per Standard C22 2 236 Compresso...

Page 4: ...Heat Pump 4 A Brazed SS V Other 5 A Cu tube Al fin B Cu tube Cu fin V Other 6 A None B Bronzeglow H Heresite E Electrofin S Standard V Other 7 E ECM Fans H High static L Single Fan V Other 8 R 410A P...

Page 5: ...60 H 460 3 60 C 575 3 60 D 200 3 50 E 400 3 50 F 380 3 60 S 220 230 1 60 V Other Accessory Module ACP 2 H C 180 M B S C TankVolume Three digits 000 None Gallons Water Piping C Copper S Stainless P PVC...

Page 6: ...4 1 Quantity 2 2 4 FanType Axial Axial Axial Fan Material Composite Composite Composite Air Flow Per Module per module 16 000 22 000 44 000 Air Cooled Coil ARA 020X ARA 030X ARA 060X Fin Material Alu...

Page 7: ...sword levels provide three different access modes to the parameters read only for assistance edit for servicing and total access for the manufacturer Additional features include WiFi interface for tab...

Page 8: ...s Typical Unit Dimensions ARA 020X Single Module Dimensions CLEARANCES No obstructions above fans Horizontal clearances as shown on drawing Multistack does not recom mend pit installations Consult Mul...

Page 9: ...ps Typical Unit Dimensions ARA 030X Single Module Dimensions CLEARANCES No obstructions above fans Horizontal clearances as shown on drawing Multistack does not recommend pit installations Consult Mul...

Page 10: ...umps Typical Unit Dimensions ARA 030X Two Modules Dimensions CLEARANCES No obstructions above fans Horizontal clearances as shown on drawing Multistack does not recommend pit installations Consult Mul...

Page 11: ...Dimensions Typical Unit Dimensions ARA 020X with ASP 020X Units CLEARANCES No obstructions above fans Horizontal clearances as shown on drawing Multistack does not recom mend pit installations Consult...

Page 12: ...mps Dimensions CLEARANCES No obstructions above fans Horizontal clearances as shown on drawing Multistack does not recommend pit installations Consult Multistack Representative for options Typical Uni...

Page 13: ...umps Typical Unit Dimensions ARA 060X Two Modules Dimensions CLEARANCES No obstructions above fans Horizontal clearances as shown on drawing Multistack does not recommend pit installations Consult Mul...

Page 14: ...mps Typical Unit Dimensions ARA 060X Four Modules Dimensions CLEARANCES No obstructions above fans Horizontal clearances as shown on drawing Multistack does not recommend pit installations Consult Mul...

Page 15: ...ps Dimensions Typical Unit Dimensions ARA 060X Multiwing Fans CLEARANCES No obstructions above fans Horizontal clearances as shown on drawing Multistack does not recommend pit installations Consult Mu...

Page 16: ...the other compressors in the system The total system Minimum Circuit Ampacity MCA shall not exceed 760A Wire sizing is based ontheNationalElectricCode NEC ratingfor75 Ccopperwire threewiresperconduit...

Page 17: ...structions for transporting rigging and assembly of modular chiller 1 06 WARRANTY A Manufacturer s equipment warranty shall be for a period of one 1 year from date of equipment start up or 18 months f...

Page 18: ...essure reductions at 30 feet as compared to standard fan option ranges from 3 6 dBA H Central Control System 1 Scheduling of the various compressors shall be performed by a microprocessor based contro...

Page 19: ...suction gas temperature 6 Low leaving evaporator water temperature B Failure of chiller to start or chiller shutdown due to any of the above safety cutouts shall be annunciated by display of the appr...

Page 20: ...a professional water treatment specialist who is familiar with the operating conditions and materials of construction specified for the chiller s heat exchangers headers and associated piping Cycles...

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