Specification

PRINTED IN U.S.A. 04/19 WP FORM NO. MR-201 N Rev. 5
Water
INTEGRATED HOME COMFORT
Commercial Electric
Marathon Heavy-Duty Water Heaters
INTEGRATED HOME COMFOR
T
INTEGRATED HOME COMFORT
Marathon
®
Heavy Duty non-metallic electric
water heaters are designed for harsh
environments and a warranty to back it up
In keeping with its policy of continuous progress and product improvement, Rheem reserves the right to make changes without notice.
Rheem Water Heating • 1115 Northmeadow Parkway, Suite 100
Roswell, Georgia 30076 • www.rheem.com
Rheem Canada Ltd./Ltée • 125 Edgeware Road, Unit 1
Brampton, Ontario L6Y 0P5 • www.rheem.com
Marathon Heavy Duty
75, 85 and 105-Gallon Capacities
240 Volt AC/Single Phase
Electric
Non-metallic Tank Features
• Seamless, blow-molded, polybutene
tank – impervious to rust and
corrosion
• Multiple layers of filament wound
fiberglass give the tank unmatched
strength
• Polyurethane insulation helps reduce
energy consumption
• Recessed drain valve is out of the way
of brooms and scrubbers
• High temperature polysulfone dip tube
• Tough molded polyethylene outer shell
resists dents, scratches, and salt air
Efficiency
• Well insulated for reduced standby
heat loss
• Pipe wrap energy saving kit included
to achieve maximum energy savings
Performance
• Recovery Capacity: 18.2 gallons
per hour (delivers approximately 78
gallons of hot water in the first hour
for 75-gallon models, 91 gallons for
85-gallon models and 104 gallons for
105-gallon models)**
• Thermostat capable of delivering
water temperature above 181° F for
high temperature applications
Easy Installation & Service
• Marathon’s lightweight tank is easier
to maneuver and position
• Bowl shaped tank bottom allows
complete sediment draining
• Water tight grommets keep out over-
head moisture and condensation
Plus…
• Thermally fused upper element
provides protection against dry firing
• Titanium upper and lower elements for
superior resistance to lime build-up
• Full-flow, brass drain valve
•
Temperature and pressure relief valve
and factory installed vacuum relief valve
• Low lead compliant
• Standard replacement parts
Warranty
• Lifetime limited warranty on tank and
1-year on parts*
* Warranty is provided to original customer in
a commercial application after online product
registration is complete. Registration must be
completed within 90 days of installation. See
Warranty Certificate for complete information
Efficiency | All models tested according to ANSI test
procedures and meet or exceed the thermal efficiency
and standby loss requirements of current ASHRAE
standards (EPACT). Also exceeds energy efficiency
codes of all states including California Energy
Commission (CEC).
Safety and Construction | These products are
design certified by Underwriters Laboratories (UL)
to meet UL safety standards and UL/NSF 005 as
electric storage tank water heaters. All models are
North Carolina and Massachusetts Code compliant.
Certified for 150 PSI maximum working pressure.
A
C
B
5-3/4"
**Recovery Capacity is based upon a 100° F water temperature rise and calculated per ANSI Z21.10.3 standards. First hour hot water delivery is based upon 77° water temperature rise.
• Water heaters furnished with standard 240 volt AC, single phase non-simultaneous wiring; available in 3800 and 4500 watt double element configuration (85-gallon 3000 watt).
• For height to top of heat traps add 3-1/2" to the height to water connection.
• Maximum test pressure: 300 PSI; Maximum working pressure: 150 PSI
DESCRIPTION FEATURES ROUGHING IN DIMENSIONS (SHOWN IN INCHES)
T
Y RECOVERY FIRST HOUR TANK HEIGHT TO APPROX.
P GAL. MODEL IN G.P.H. DELiIVERY HEIGHT WATER CONN. DIAMETER SHIP WT.
E CAP. NUMBER 100° F RISE** G.P.H. A B C (LBS)
Tall 75 MHD75245 18.2 78 58-5/8 62-5/8 28-1/4 122
Tall 85 MHD85245 18.2 91 66-1/4 70-1/4 28-1/4 134
Tall 105 MHD105245 18.2 104 66-3/4 70-3/4 30-1/4 152