A.O. Smith CMC/SU-54 Bedienungsanleitung

PG 1 OF 4

August 2009R AOSCE15700

Commercial Electric Water Heaters

DURA-POWER

180°F BOOSTER MODELS

Dura-Power® commercial electric water heaters are designed to boost the water temperatures

for applications such as commercial dishwashers, which require very high temperature sanitizing

rinse—typically 180°F. Both 5-gallon countermount “CMC” models and 20-gallon “SU” models are

available with inputs up to 54 kW. Are models are also available with an optional stainless steel

tank for use with deionized water.

FEATURES

INCOLOY-SHEATH HEATING ELEMENTS STANDARD

Industrial-grade Incoloy sheathed heating elements are designed for rugged long-

lasting commercial service and can withstand sheath temperatures up to 1500°F

Each heating element has three separate heating loops, which provides more heating

surface, lower watt density and maximum recovery efﬁciency

Pre-wired leads provide excellent protection against oxidation and scaling

Input options from 6 kW to 54 kW, recoveries from 25 to 221 gallons per hour (gph)

at 100°F rise

Deionized models equipped with stainless steel standard elements

A. O. SMITH GOLDENROD®ELEMENTS OPTIONAL

Patent-pending 24k gold-plated sheath plus medium watt-density ensures even

longer element life

Higher resistance to scale build-up, compared to Incoloy elements

Three-year warranty against failure due to lime scale build-up

Not available on deionized models

STANDARD VOLTAGES FOR EASY INSTALLATION

Single-phase and three-phase

Single-phase 208V and 240V are ﬁeld-convertible to three-phase

CMC models only, 208V and 240V at 24 kW and below are supplied as phase-convertible units

(single- to three-phase and vice versa)

277V single-phase also available – Contact A. O. Smith for 120V circuit availability

IMMERSION THERMOSTAT FOR EFFICIENT CONTROL

Close-differential, immersion-type thermostat for superbly accurate temperature control

Adjustable from 140°F to 185°F

Manual reset, high-temperature cutoff

HEAVY-DUTY MAGNETIC CONTACTORS

UL-rated 100,000 cycles

FACTORY-WIRED, 120V CIRCUIT CONTROLS

120V control circuit powered by fused transformer

Eliminates need for 120V service connection

Certiﬁed to NSF/ANSI 61

(Optional)

MODELS

CMC/SU-6

through

CMC/SU-54

July 2011R

Commercial Electric Water Heaters

August 2009R PG 2 OF 4

www.hotwater.com

AOSCE15700

POWER-CIRCUIT FUSING FOR SYSTEM PROTECTION

Safeguards elements and contactors from short circuits, overloading and line surges

Required by National Electric Code and UL when current draw exceeds 120 A

ALL STAINLESS STEEL JACKET

Cleans easily, corrosion resistant, hinged for easy serviceability

Standard on CMC models, optional on SU models

GLASS-LINED TANK, ASME TANK CONSTRUCTION

Speciﬁcally developed for high-temperature water heater use

Provides long-lasting protection against corrosion

Equipped with anode rod for additional corrosion protection

Stainless steel tank on deionized models

MAXIMUM HYDROSTATIC WORKING PRESSURE: 150 PSI

CSA CERTIFIED AND ASME RATED T&P RELIEF VALVE

MEETS OR EXCEEDS THE THERMAL EFFICIENCY AND/OR

STANDBY LOSS REQUIREMENTS OF THE U.S. DEPARTMENT

OF ENERGY AND CURRENT EDITION ASHRAE/IESNA 90.1

THREE-YEAR LIMITED TANK WARRANTY

For complete information, consult written warranty or contact A. O. Smith

OTHER DURA-POWER CMC AND SU SERIES STANDARD FEATURES:

SIMPLIFIED, COLOR-CODED CIRCUITRY FOR EASE OF SERVICE

CSA CERTIFIED AND ASME RATED T&P RELIEF VALVE

PRESSURE REDUCING VALVE WITH BYPASS CHECK AND STRAINER

TEMPERATURE/PRESSURE GAUGES

OTHER DURA-POWER CMC AND SU SERIES OPTIONS:

STAINLESS STEEL TANK

UFor deionized water

LOW-WATER CUTOFF

UProbe-type electric low-water cutoff

UPrevents energizing of elements when low-water condition exists (automatic reset)

UNDERCOUNTER MOUNTING PAN FOR CMC MODELS

DUAL INDICATING/PILOT LIGHTS AND SWITCH

ULights indicate when elements are on, switch gives positive on-off control of control circuit

SHOCK ABSORBER REDUCES WATER HAMMER

July 2011R

August 2009R PG 3 OF 4

www.hotwater.com

AOSCE15700

Commercial Electric Water Heaters

CMC MODELS

SU MODELS

INPUT CAPACITY AND RECOVERY

MODEL

NUMBER

STANDARD KW

INPUT

GPH

LPH

RECOVERY–GALLONS OR LITRES PER HOUR AT

DEGREE RISE*

40°F

22°C

100°F

56°C

140°F

78°C

CMC-6

SU-6 6GPH 62 25 18

LPH 234.7 94.6 68.1

CMC-9

SU-9 9GPH 92 37 26

LPH 348.2 140 98.4

CMC-12

SU-12 12 GPH 123 49 35

LPH 465.6 185.5 132.5

CMC-15

SU-15 15 GPH 154 61 44

LPH 582.9 230.9 166.5

CMC-18

SU-18 18 GPH 184 74 53

LPH 696.4 280.1 200.6

CMC-20

SU-20 20 GPH 205 82 58

LPH 775.9 310.4 219.5

CMC-24

SU-24 24 GPH 246 98 70

LPH 931.1 370.9 265

CMC-30

SU-30 30 GPH 307 123 88

LPH 1162 465.6 333.1

CMC-36

SU-36 36 GPH 369 148 105

LPH 1396.7 560.2 397.4

CMC-45

SU-45 45 GPH 461 184 132

LPH 1744.9 696.4 499.6

CMC-54

SU-54 54 GPH 554 221 158

LPH 2096.9 836.5 598

For deionized water models with stainless steel tanks, add “D” to model number.

Examples CMCD-6, SUD-6. NSF recovery ratings = above ratings x .98.

DIMENSIONS AND WEIGHT

MODEL

NUMBER

GALLONS OR

LITRES CAPACITY DIMENSIONS IN INCHES SHIPPING

WEIGHT

HEIGHT A WIDTH B DEPTH C INLET/OUTLET STANDARD

CMC-6

through

CMC-18

U.S. Gallons

13.75 13 23.5 3/4 80 lbs.

gk4.6319.12.55339.43sertiL

CMC-20

through

CMC-54

U.S. Gallons

12 18 23.5 3/4 96 lbs.

gk6.3419.12.757.545.03sertiL

SU-6

through

SU-54

U.S. Gallons 20 25 22.25 23 3/4 200 lbs.

gk9.0919.14.855.6

55.36sertiL

WATTAGE AND VOLTAGE

KW INPUT

AVAILABLE MODEL NUMBER OF

IMMERSION

HEATERS

IMMERSION

HEATER

WATTAGE

FULL LOAD CURRENT IN AMPERES

CMC SERIES SU SERIES ESAHPEERHTESAHPELGNIS

208V 240V 277V 480V 208V 240V 480V

6 CMC-6 SU-6 1 6,000 28.8 25 21.7 12.5 16.7 14.4 7.2

9 CMC-9 SU-9 1 9,000 43.3 37.5 32.5 18.8 25 21.7 10.8

12 CMC-12 SU-12 1 12,000 57.7 50 43.3 25 33.3 28.9 14.4

15 CMC-15 SU-15 1 15,000 72.1 62.5 54.2 31.3 41.6 36.1 18

18 CMC-18 SU-18 1* 18,000 86.5 75 65 37.5 50 43.3 21.7

20 CMC-20 SU-20 2 10,000 96.2 83.3 72.2 41.7 55.5 48.1 24.1

24 CMC-24 SU-24 2 12,000 115.4 100 86.6 50 66.6 57.7 28.9

30 CMC-30 SU-30 2 15,000 144.2 125 108.3 62.5 83.3 72.2 36.1

36 CMC-36 SU-36 2 18,000 173.1 150 130 75 99.9 86.6 43.3

45 CMC-54 SU-45 3 15,000 216.3 187.5 162.5 93.8 124.9 108.3 54.1

54 CMC-54 SU-54 3 18,000 N/A 225 194.9 112.5 149.9 129.9 65

*208V models use on additional immersion heater

**Each immersion heater contains three electric elements

July 2011R

SUGGESTED SPECIFICATION

The water heater(s) shall be A. O. Smith Dura-Power Model(s) CMC/SU _____ rated at _____ KW, _____ volts, _____ -phase, 50/60 cycle AC, and constructed in

accordance with ASME Code and shall bear appropriate symbol and be listed with the National Board as required. Heater shall be listed with Underwriters

Laboratories and approved by National Sanitation Foundation.

Glass-lined tank(s) shall be _____ gallon capacity with 150 psi maximum working pressure/ASME Code. Tank shall be cathodically protected with adequate

extruded magnesium rod. All internal surfaces of the heater(s) exposed to water shall be glass-lined with an alkaline borosilicate composition fused to

steel. For deionized, substitute: Stainless tank(s) shall be _____ gallon capacity with 150 psi working pressure/ASME Code.

Elements shall be commercial-grade, medium watt density, triple-loop construction Incoloy sheathed or Goldenrod elements __________. For deionized,

substitute: Elements shall be commercial-grade, type 316 L stainless steel sheathed. Elements shall be switched through magnetic contactor(s). Fused 120V

control circuit shall include manual reset, high-temperature cut-off switch and immersion-style operating thermostat(s). Low-water cut-off (optional) to

prevent element burnout due to possible low-water conditions. Straight-line rectangular cabinet shall be baked enamel with stainless steel front panel

(SU models only). All stainless steel jacket (CMC models only) shall provide full-size access to control and elements for ease in servicing and shall enclose

tank with ﬁber-class insulation.

Heater tank shall have a three (3) year limited warranty as outlined in the written warranty.

For Technical Information and Automated Fax Service, call 800-527-1953. A.O. Smith Corporation reserves the right to make product changes or improvements without prior notice.

Commercial Electric Water Heaters

August 2009R PG 4 OF 4

www.hotwater.com

AOSCE15700

July 2011R

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