A.O. Smith PCT-40 User Manual
Residential Electric Water Heaters
®
TALL, SHORT AND LOWBOY (TOP CONNECT) MODELS AVAILABLE.
A. O. SMITH DYNACLEAN™ DIFFUSER DIP TUBE
Helps reduce lime and sediment buildup, maximizes hot water output.
Made from long-lasting PEX cross-link polymer.
COREGARD™ ANODE ROD
Aluminum anode with stainless steel core protects tank against corrosion longer
than ordinary mild steel anodes.
DURABLE TAMPER-RESISTANT BRASS DRAIN VALVE
®
A. O. SMITH PERMAGLAS
Protects steel tank from rust.
GLASS COATING
FACTORY-INSTALLED SIDE-MOUNTED TEMPERATURE
AND PRESSURE (T&P) RELIEF VALVE
Top-mounted T&P Valve available as option on some models.
6-YEAR LIMITED TANK AND PARTS WARRANTY
For complete information consult written warranty or A. O. Smith Water
Products Company.
UPGRADE TANK WARRANTY TO 10 YEARS
See details on page 2.
CODE COMPLIANCE: MEETS OR EXCEEDS FEDERAL MINIMUM ENERGY
STANDARDS ACCORDING TO THE LATEST EDITION OF THE NATIONAL
APPLIANCE ENERGY CONSERVATION ACT (NAECA). ALSO COMPLIES WITH
ASHRAE 90.1-2004 AND CURRENT EDITIONS OF ICC CODES AND HUD STANDARDS
CERTIFIED TO UL 174 FOR HOUSEHOLD ELECTRIC WATER HEATERS
Revised September 2008
U
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®
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AOSRE50300
Residential Electric Water Heaters
®
DIMENSIONS IN INCHES
A B C
APPROX.
SHIPPING
WEIGHT
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 95
ECT-40
ECT-52
ECT-55
ECT-66
ECT-80
ECT-120*
52 .92 40 4500 6000 21 16 59-1/2 18 53-1/2
60 .91 50 4500 6000 21 16 54 20-1/2 47-1/2 125
67 .90 55 4500 6000 21 16 60-1/4 20-1/2 52-3/4 135
72 .88 66 4500 6000 21 16 60-1/4 22 53 170
81 .86 80 4500 6000 21 16 60-1/2 24 52 200
112 .81 119 4500 6000 21 16 64-1/4 28 54-1/4 320
SHORT MODELS
ECS-30
ECS-40
ECS-50
41 .93 30 4500 6000 21 16 36-1/2 20-1/2 28 100
52 .92 40 4500 6000 21 16 44 20-1/2 37-3/4 115
60 .90 50 4500 6000 21 16 48 22 40-1/2 150
LOWBOY MODELS
ECL-30
ECLN-40
ECL-50
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.
41 .93 29 4500 6000 21 16 30 22 22-1/2 105
48 .92 38 4500 6000 21 12 31-1/4 23 24-5/8 125
55
.91 50 4500 6000 21 16 34 26-1/2 25 170
CONNECTION
HOT
ANODE ROD
COLD
CONNECTION
(LBS)
115
8"
B
A
ECT, ECS, ECL(N)
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 September 2008
www.hotwater.com
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AOSRE50300
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