Input Capacity and Recovery

Commercial Electric Water Heaters

		GPH	RECOVERY–GALLONS OR LITRES PER HOUR AT
MODEL	STANDARD KW			DEGREE RISE*
		OR
NUMBER	INPUT
		LPH	40°F	100°F	140°F
			22°C	56°C	78°C

CMC-6	6	GPH	62	25	18
SU-6		LPH	234.7	94.6	68.1

CMC-6	9	GPH	92	37	26
SU-6		LPH	348.2	140	98.4

CMC-6	12	GPH	123	49	35
SU-6		LPH	465.6	185.5	132.5

CMC-6	15	GPH	154	61	44
SU-6		LPH	582.9	230.9	166.5

CMC-6	18	GPH	184	74	53
SU-6		LPH	696.4	280.1	200.6

CMC-6	20	GPH	205	82	58
SU-6		LPH	775.9	310.4	219.5

CMC-6	24	GPH	246	98	70
SU-6		LPH	931.1	370.9	265

CMC-6	30	GPH	307	123	88
SU-6		LPH	1162	465.6	333.1

CMC-6	36	GPH	369	148	105
SU-6		LPH	1396.7	560.2	397.4

CMC-6	45	GPH	461	184	132
SU-6		LPH	1744.9	696.4	499.6

CMC-6	54	GPH	554	221	158
SU-6		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	GALLONS OR			DIMENSIONS IN INCHES			SHIPPING
		CAPACITY		DIMENSIONS IN INCHES			WEIGHT
							WEIGHT
NUMBER	LITRES
NUMBER	LITRES		HEIGHT A	WIDTH B	DEPTH C	INLET/OUTLET	STANDARD
			HEIGHT A	WIDTH B	DEPTH C	INLET/OUTLET	STANDARD

CMC-6	U.S. Gallons		13.75	13	23.5	3/4	80 lbs.
through		5
through	Litres	5	34.9	33	55.2	1.91	36.4 kg
CMC-18	Litres		34.9	33	55.2	1.91	36.4 kg

CMC-20	U.S. Gallons		12	18	23.5	3/4	96 lbs.
through		5
through		5
CMC-54	Litres		30.5	45.7	57.2	1.91	43.6 kg

CMC-6	U.S. Gallons		25	22.25	23	3/4	200 lbs.
through		20
through	Litres	20	63.5	56.5	58.4	1.91	90.9 kg
CMC-54	Litres		63.5	56.5	58.4	1.91	90.9 kg

CMC MODELS

SU MODELS

WATTAGE AND VOLTAGE

	AVAILABLE MODEL		NUMBER OF	IMMERSION			FULL LOAD CURRENT IN AMPERES
KW INPUT	CMC SERIES	SU SERIES	IMMERSION	HEATER		SINGLE PHASE				THREE PHASE
	CMC SERIES	SU SERIES	HEATERS	WATTAGE	208V	240V	277V	480V	208V	240V	480V
			HEATERS	WATTAGE	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

Revised October 2008	PG 3 OF 4
www.hotwater.com	AOSCE15700

CMC/SU-6, CMC/SU-54 specifications

A.O. Smith is a well-recognized name in the field of water heating solutions, and their CMC/SU series, specifically the CMC/SU-6 and CMC/SU-54 models, exemplify the company's commitment to innovation and performance. These water heaters are designed to cater to both residential and light commercial applications, ensuring that users have access to reliable hot water when they need it.

The CMC/SU-6 is a compact unit that offers a tank capacity of 6 gallons, making it an ideal choice for smaller homes, apartments, or commercial spaces that have limited water heating needs. Despite its small size, the CMC/SU-6 is equipped with a powerful heating element, providing quick recovery rates that allow for consistent hot water supply. Its user-friendly interface allows for straightforward temperature adjustments, ensuring that users can customize their hot water experience.

On the other hand, the CMC/SU-54 is designed for larger demands, boasting a tank capacity of 54 gallons. This model is suitable for larger families or commercial establishments where high volumes of hot water are necessary. The CMC/SU-54 features advanced insulation technology which minimizes heat loss, promoting energy efficiency and reducing operational costs. It also includes a powerful thermostat system that ensures precise temperature control, making it not only functional but also environmentally conscious.

One standout feature in both models is A.O. Smith’s advanced energy-saving technology. Both heaters are built with high-efficiency designs that meet or exceed ENERGY STAR standards, providing customers with significant savings on their energy bills over time. Furthermore, A.O. Smith incorporates safety features such as built-in pressure relief valves and advanced thermal protection mechanisms, ensuring that both models operate safely under various conditions.

Another notable characteristic is the durable construction of both units. Constructed with high-quality materials, they are built to withstand the rigors of daily use while maintaining a high level of performance. The tanks are lined with glass that enhances corrosion resistance, extending the lifespan of the equipment.

In summary, A.O. Smith's CMC/SU-6 and CMC/SU-54 models represent the latest advancements in water heating technology, offering high performance, energy efficiency, and safety features that cater to a wide range of water heating needs. Whether for residential use or light commercial applications, these models stand out as reliable solutions that deliver exceptional hot water experiences.

A.O. Smith CMC/SU-54 Input Capacity and Recovery, Dimensions and Weight, Wattage and Voltage

Models: CMC/SU-6 CMC/SU-54

Commercial Electric Water Heaters