A.O. Smith ACI-CRS-24B2B-N, ACI-CRS-24B2B-P, ACI-CRS-34B2B-N, ACI-CRS-34B2B-P, ACI-CRS-36B2B-N User Manual

...

TANKLESS FREE STANDING BACK-TO-BACK

LIGHTWEIGHT

• Constructed of sturdy metal frame

• Utilizes the industry’s lightest 199,000 BTU high efﬁciency condensing tankless heater

EXPANDABLE

• Multiple design and installation conﬁgurations

• Up to 1,194,000 BTU on a single rack system

• Able to link up to 20 heaters together with multi-link system

Commercial Tankless Rack System

REDUNDANCY

• Multiple combustion systems provide peace of mind

• Easily isolate a unit for maintenance which extends the life of the heaters

EASY FIELD INSTALLATION

• Reduce installation costs with three simple connections (cold water, hot water and gas)

EASILY INTEGRATE STORAGE

• As the world’s largest water heater manufacturer, we can easily integrate storage into the design

WARRANTY

• 6 year limited heat exchanger

• 5 year limited tankless parts

• 1-year limited rack parts

www.hotwater.com | 800-527-1953 Toll-Free USA | A. O. Smith Corporation | 500 Tennessee Waltz Parkway | Ashland City, TN 37015

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Commercial Tankless Rack System

Model Number

Indoor Models

ACI-CRS-24B2B-N 2 Natural 15,000 398,000 15.2 12.6 10.8 9.4 8.4 7.6

ACI-CRS-24B2B-P 2 Propane 13,000 398,000 15.2 12.6 10.8 9.4 8.4 7.6

ACI-CRS-34B2B-N 3 Natural 15,000 597,000 22.8 18.9 16.2 14.1 12.6 11.4

ACI-CRS-34B2B-P 3 Propane 13,000 597,000 22.8 18.9 16.2 14.1 12.6 11.4

ACI-CRS-36B2B-N 3 Natural 15,000 597,000 22.8 18.9 16.2 14.1 12.6 11.4

ACI-CRS-36B2B-P 3 Propane 13,000 597,000 22.8 18.9 16.2 14.1 12.6 11.4

ACI-CRS-44B2B-N 4 Natural 15,000 796,000 30.4 25.2 21.6 18.8 16.8 15.2

ACI-CRS-44B2B-P 4 Propane 13,000 796,000 30.4 25.2 21.6 18.8 16.8 15.2

ACI-CRS-46B2B-N 4 Natural 15,000 796,000 30.4 25.2 21.6 18.8 16.8 15.2

ACI-CRS-46B2B-P 4 Propane 13,000 796,000 30.4 25.2 21.6 18.8 16.8 15.2

ACI-CRS-56B2B-N 5 Natural 15,000 995,000 38 31.5 27 23.5 21 19

ACI-CRS-56B2B-P 5 Propane 13,000 995,000 38 31.5 27 23.5 21 19

Number of

Heaters

Conﬁgurations Fuel Type

Gas Consumption Input Max Flow (GPM)

Minimum

BTU/h

Maximum

BTU/h

50°F Rise 60°F Rise 70°F Rise 80°F Rise 90°F Rise

100°F

Rise

ACI-CRS-66B2B-N 6 Natural 15,000 1,194,000 45.6 37.8 32.4 28.2 25.2 22.8

ACI-CRS-66B2B-P 6 Propane 13,000 1,194,000 45.6 37.8 32.4 28.2 25.2 22.8

Outdoor Models

ACO-CRS-24B2B-N 2 Natural 15,000 398,000 15.2 12.6 10.8 9.4 8.4 7.6

ACO-CRS-24B2B-P 2 Propane 13,000 398,000 15.2 12.6 10.8 9.4 8.4 7.6

ACO-CRS-34B2B-N 3 Natural 15,000 597,000 22.8 18.9 16.2 14.1 12.6 11.4

ACO-CRS-34B2B-P 3 Propane 13,000 597,000 22.8 18.9 16.2 14.1 12.6 11.4

ACO-CRS-36B2B-N 3 Natural 15,000 597,000 22.8 18.9 16.2 14.1 12.6 11.4

ACO-CRS-36B2B-P 3 Propane 13,000 597,000 22.8 18.9 16.2 14.1 12.6 11.4

ACO-CRS-44B2B-N 4 Natural 15,000 796,000 30.4 25.2 21.6 18.8 16.8 15.2

ACO-CRS-44B2B-P 4 Propane 13,000 796,000 30.4 25.2 21.6 18.8 16.8 15.2

ACO-CRS-46B2B-N 4 Natural 15,000 796,000 30.4 25.2 21.6 18.8 16.8 15.2

ACO-CRS-46B2B-P 4 Propane 13,000 796,000 30.4 25.2 21.6 18.8 16.8 15.2

ACO-CRS-56B2B-N 5 Natural 15,000 995,000 38 31.5 27 23.5 21 19

ACO-CRS-56B2B-P 5 Propane 13,000 995,000 38 31.5 27 23.5 21 19

ACO-CRS-66B2B-N 6 Natural 15,000 1,194,000 45.6 37.8 32.4 28.2 25.2 22.8

ACO-CRS-66B2B-P 6 Propane 13,000 1,194,000 45.6 37.8 32.4 28.2 25.2 22.8

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AOSCG14004

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