Specification Sheet

Information and product specications contained in this document are subject to change without notice. REV 2020-01
Specications
Tankless Electric Water Heater
Series Three
™
Staged or Parallel Models (Three Heating Modules) Thermostatic Control
Applications
• Residential or commercial multi-xture unit with capacity up to
4 GPM
Performance Features
• On demand hot water. Cuts energy waste. No stand-by heat
loss.
• Thermostatic control. Microprocessor provides stable outlet
temperatures
• Regulates power to required ow
• Continuous hot water. No storage capacity to run out
• Reduces installation cost and material. Requires only one cold
water input line, no solder connections. No T&P relief valve
needed (check local codes) or venting
• Easy installation with integral 3/4" NPT ttings
• Three glass-ber reinforced heater bodies and Nichrome
elements – a unique, patented ow path ensures optimum heat
transfer and extended element life
• Warranty, ve (5) years limited on leaks, one (1) year parts
• Field serviceable replaceable cartridge element
• Unit mounts on wall
• High temperature limit switch
Optional Features
• T2T – Staged heating elements
• T3 – Parallel heating elements. Recommended for commercial
uses only
• Factory set ambient to 180° (FS)
• Multi lavs. Staged up to 4 lavs (60°F-180°F) 110°F temp setting,
0.3 GPM turn on, aerators supplied (ML)
• Sanitation 180F° (S)
• N4, N4X (304SS) enclosures
Product Specications
Dimensions: 15.25" x 12.25" x 4.5"
Weight: 15 lb
Cover: Enameled Steel
Color: White
Element: Triple replaceable cartridge inserts.
Thermostatic control (+/-1°F) accuracy at steady
state
Fittings:
3/4" NPT at bottom of unit (5/8 " OD) or
3/4" NPT adapter
Min. Dynamic Operating Pressure:
45 PSI
Max. Dynamic Operating Pressure: 150 PSI
UL listed le number: E86887
U.S. Patent #'s: 4,762,980 and 4,960,976
Special Design Service
Inquiries for units for unique applications are welcome.
Call our Technical Service department at 1-800-543-6163.
Suggested Specication
Tankless water heater shall be an Eemax Series Three model
number EX280_________________.
Heater shall have three heating modules. Element shall be
replaceable cartridge insert. Unit shall have a replaceable lter
in the inlet connector. Heater shall be tted with 3/4" NPT water
connections. Maximum operating pressure of 150 PSI. Hot water
storage tanks prohibited. Unit shall be Eemax or approved equal.
NOTE: Refer to rating chart for product information.
Enclosure to be tted with the following features:
_____ FS
Factory set ambient to 180°F
_____ ML Multi lavs 0.3 turn on. Staged up to 4 lavs 110°F
temp setting
_____ S
Sanitation 180°F
_____ N4 NEMA 4 steel cabinet with powder coat nish
_____ N4X NEMA 4 stainless steel, corrosion-resistant cabinet
*The wetted surface of this product
contacted by water contains less than
0.25% lead and meets NSF/ANSI 372
In USA
Assembled