A.O. Smith ECT-30, ECT-40, ECT-52, ECT-55, ECT-66 User Manual
...
Residential Electric Water Heaters
®
®
TALL, SHORT AND LOWBOY (TOP CONNECT) MODELS AVAILABLE
DYNACLEAN™ DIFFUSER DIP TUBE
Helps reduce lime and sediment buildup while maximizing hot water output. Made from longlasting PEX cross-linked polymer.
COREGARD™ ANODE ROD
Aluminum anode with stainless steel core protects tank against corrosion longer
than ordinary steel anodes.
DURABLE, TAMPER-RESISTANT BRASS DRAIN VALVE
®
PERMAGLAS
Protects steel tank from corrosion and maximizes tank life.
CSA/ASME CERTIFIED T&P RELIEF VALVE
Top-mounted T&P Relief Valve available as option on select models.
CODE COMPLIANCE:
Meets the Federal Energy Efficiency Standards according to the current edition of the National
Appliance Energy Conservation Act (NAECA) of 1992. And also Meets the standby loss
requirements of the U. S. Department of Energy and Current Edition of ASHRAE/IESNA 90.1
and ICC and HUD Standards.
CERTIFIED TO UL 174 FOR HOUSEHOLD ELECTRIC WATER HEATERS
6-YEAR LIMITED TANK AND PARTS WARRANTY
For complete information consult written warranty or A. O. Smith
UPGRADE TANK WARRANTY TO 10 YEARS
See details on page 2.
GLASS COATING
®
Revised November 2012
Revised September 2008
Low Lead Content
U
L
®
Page 1 of 2
AOSRE50300
Residential Electric Water Heaters
®
®
DIMENSIONS IN INCHES
A B C
APPROX.
SHIPPING
WEIGHT
(LBS)
MODEL
NUMBER
FIRST
HOUR
RATING
GALLONS
ENERGY
FACTOR
GAL.
CAP.
ELEMENT WATTAGE
240 VAC
STANDARD MAXIMUM
RECOVERY
90ºF RISE
GALLON
PER HOUR
R
VALUE
TALL MODELS
ECT-30 43 .93 30 4500 6000 21 16 46-1/2 18 39-1/2 90
ECT-40
ECT-52
ECT-55
ECT-66
ECT-80
ECT-120
200
200
210
210
210
210
+
200
52 .92 40 4500 6000 21 16 59-1/2 18 53-1/2
60 .9 50 4500 6000 21 16 54 20 47-1/2 1
1
67 .90 55 4500 6000 21 16 60-1/4 20 52-3/4 13
72 .88 66 4500 6000 21 16 60-1/4 20-1/2 53 17
81 .86 80 4500 6000 21 16 60-1/2 22-1/2 52 20
112 .81 119
4500 6000 21 16 64-1/4 28 54-1/4 336
SHORT MODELS
ECS-30
ECS-40
ECS-50
200
200
210
43 .93 30 4500 6000 21 16 36-1/2 20-1/2 28
52 .92 40 4500 6000 21 16 44 20-1/2 37-3/4 1
60 .90 50 4500 6000 21 16 48 21-1/2 40-1/2 121
LOWBOY MODELS
ECL-30
ECLB-30
ECLN-40
ECLB-40
ECL-50
200
*+
100
200
*
200
200
40 .93 28 4500 6000 21 16 30 22 22-1/2
40 .93 28 4500 6000 21 12 30 20 22-1/2 90
48
48
55
.92 38 4500 6000 21 12 31-1/4 23 24-5/8 113
.93 38 4500 6000 21 16 32-1/4 24 24-5/8 118
.91 50 4500 6000 21 16 34 26-1/2 25 164
1
06
16
4
8
8
90
03
91
Recovery capacity is based on actual performance tests.
For 10-year tank warranty, change “E” to “P” in model number (PCT-40).
+ This model is not available with top T&P Valve.
10-year tank warranty and top T&P Valve option combo not available on ECLN-40 and ECL-50.
*Heater ships with supplied insulation blanket
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
Revised November 2012
Revised September 2008
CONNECTION
HOT
A
ECT, ECS, ECL(N)
www.hotwater.com
ANODE ROD
COLD
CONNECTION
8"
B
C
Page 2 of 2
AOSRE50300
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