A.O. Smith EES - 120 Specification Sheet
A.O. Smith EES - 120 Specification Sheet

A.O. Smith EES - 120 Specification Sheet

A.o. smith electrical residential / light commercial water heater specification sheet
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EES
Electrical residential /
light commercial water heater
EES - 6/15/20/30/40/52/66/80/120
Vertical electric water heater for residential / light commercial
applications • One or two replaceable Incoloy-sheathed elements
(depending on the model) • Each element is provided with an
independent control thermostat (adjustable: 43 - 77 °C) • Secondary
protection is provided by a high-limit thermostat with manual
reset • PermaGlas® Ultra Coat™ second-generation glass coating
technology to prevent corrosion • Replaceable magnesium anode
• Optional ancillaries: Unvented kits • Destratification pump kit
• Powered anodes • Time controller • Alternate kW loadings
Innovation has a name.

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Questions and answers

Frank Thompson
June 16, 2025

My hot water heater is a EEST 40 913. It has been throwing the breaker about every two days. While in operation I read 110v acrost one coil and 220v acrost the other. Is this correct ???

Summary of Contents for A.O. Smith EES - 120

  • Page 1 Electrical residential / light commercial water heater EES - 6/15/20/30/40/52/66/80/120 Vertical electric water heater for residential / light commercial applications • One or two replaceable Incoloy-sheathed elements (depending on the model) • Each element is provided with an independent control thermostat (adjustable: 43 - 77 °C) • Secondary protection is provided by a high-limit thermostat with manual reset •...
  • Page 2: Technical Specifications

    Technical specifications Electrical data Input Current Elements Power supply VAC/Hz Draw-off capacity Storage capacity Max. temperature setting °C 30 min. ∆T=44°C 60 min. ∆T=44°C 90 min. ∆T=44°C 120 min. ∆T=44°C Continuous ∆T=44°C Heating-up time ∆T=44°C min. 30 min. ∆T=50°C 60 min. ∆T=50°C 90 min.
  • Page 3: Installation Diagrams

    18 Water tank 19 Float valve Cold water Hot water Overfl ow pipe Expansion vent pipe EES 30-120 A.O. Smith unvented system kits utilise combination valves. Further installation and connection details can be found in the Installation & Commissioning Manual. EES 30-120...
  • Page 4 Electrical diagrams EES 6-20 EES 30-120 www.aosmithinternational.com Standard electrical supply Safety thermostat Control thermostat with selector switch Heating elements Control themostat Off peak electrical supply For the parts numbers of components please refer to the “Maintenance and accessories” chapter.

This manual is also suitable for:

Ees 15Ees 20Ees 30Ees 40Ees 52Ees 6 ... Show all

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