WATER HEATERS SINCE 1920
ELECTRIC TANKLESS WATER HEATER
TANKLETSHSE
ADVANTAGE
Accurate - Efficient - Endless Hot Water
THE
WAY!
PROUDLY MADE IN THE USA
Hubbell 200 Series
Hubbell 100 Series
The Hubbell 200 series Tankless electric water
heater offers 3 element heating and is perfect
for homes in the northern part of the country.
The Hubbell 100 series Tankless electric water
heater offers 2 element heating and is perfect
for homes in the southern part of the country.
Three Models to choose from
Four Models to choose from
Model 280-3 27 kW
Model 240-3 24 kW
Model 220-3 21 kW
Model 180-2 18 kW
Model 165-2 16 kW
Model 145-2 14 kW
Model 110-2 11 kW
Dimensions:
Weight:
17” x 16” x 3”
23 lbs.
Dimensions:
Weight:
13.5” x 16” x 3”
19 lbs.
Minimum Recommended Model
Average Cold Water Temp.
Winter
Summer
Model 280-3 27kW
Model 240-3 24kW
Model 220-3 21kW
37 °F
50 °F
40 °F
50 °F
52 °F
61 °F
Model 180-2 18kW
Model 165-2 16kW
62 °F
65 °F
75 °F
77 °F
Model 145-2 14kW
Model 110-2 11kW
65 °F
65 °F
77 °F
77 °F
Flow Rate Chart
Typical Hot Water Flow Rates
Determine the flow rate (GPM) of 105°F Hot Water provided by the Hubbell Tankless
Electric Water Heater. Based upon 240V
GPM (Gallons per Minute Calculation Chart)
Cold Water
Inlet Temp oF
110-2 145-2 165-2 180-2 220-3 240-3 280-3
Dishwasher
0.5 - 1.0 GPM
0.5 - 1.5 GPM
1.5 - 2.0 GPM
1.5 - 2.0 GPM
2.0 - 2.5 GPM
1.5 - 2.5 GPM
2.5 - 4.0 GPM
16kW 18kW 21kW 24kW 27kW
11kW
1.2
1.3
1.4
1.5
1.7
1.9
2.1
2.5
3.0
3.8
5.0
14kW
1.5
1.7
1.8
2.0
2.2
2.4
2.7
3.1
3.6
4.4
5.5
7.3
1.9
2.0
2.2
2.5
2.7
3.1
3.5
4.1
4.9
6.1
8.2
2.2
2.4
2.6
2.9
3.2
3.6
4.1
4.8
5.7
7.2
9.6
2.5
2.7
3.0
3.3
3.6
4.1
4.7
5.5
6.6
8.2
2.8
3.1
3.3
3.7
4.1
4.6
5.3
6.1
7.4
9.2
40˚F
45˚F
50˚F
55˚F
60˚F
65˚F
70˚F
75˚F
80˚F
85˚F
90˚F
Bathroom Sink
1.6
1.7
1.9
2.1
2.4
2.7
3.2
3.8
Kitchen Sink
Utility Sink
Washing Machine
Shower *
4.8
6.4
Bath Tub
10.9 12.3
*If simultaneous operation of multiple showers is absolutely necessary, two units may be needed. Installation of two
units will likely require electrical service upgrade to the home.
Sizing Formula For Average Household
Example
Dishwasher
1 x 0.5 = 0.5
1 x 2.0 = 2.0
2 x 0.5 = 1.0
1 x 1.5 = 1.5
Washing Machine
Bathroom Sink
Kitchen Sink
Shower
Total Fixture
Flow Rate
(GPM)
Residential
Demand Factor
(0.30)
Instantaneous Demand
(GPM)
x
=
2 x 2.0 = 4.0
+
MODEL SELECTIONS:
Total
9.0
At 40°F cold water and 2.7 GPM select Model 280-3
At 70°F cold water and 2.7 GPM select Model 145-2
➤
9.0 x 0.30 = 2.7 GPM
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PROUDLY MADE IN THE USA
How Does The Hubbell Tankless Water Heater Work?
Hubbell has applied its 88 years of water heating experience and engineered a tankless electric water heater
that will provide many years of reliable service in your home. The cold water enters the unit and passes
through a flow meter and inlet thermistor which measure the precise flow rate and temperature of the
incoming water. The control system uses advanced logic with solid state switching devices to fully
modulate the power to the heating elements from 0-100% to provide the most accurate and consistent hot
water temperatures in the industry. As the water flows out of the unit a second thermistor makes any
necessary adjustments to ensure the Hubbell Tankless delivers accurate and consistent hot water. With
numerous control features including the ability to track kW hours consumed, operating cost and hot water
usage, the Hubbell Tankless allows the homeowner to maximize their savings and gain the most benefit from
their investment.
Electrical Requirements
Hubbell Tankless Model No.
Electrical Requirements
kW @ 240V
220-3
110-2 145-2 165-2 180-2
240-3 280-3
11
14
16
18
21
24
100.0 112.5
200 200
27
Amps @ 240V
45.8
100
58.3
100
66.7
125
75.0
150
87.5
200
Min. Recommended Amperage to Home
Multiple Circuit Breaker Installation (US Only)
2 x 60 2 x 60
3 x 40 3 x 40
Minimum Double-Pole Circuit
Breaker Size (quantity x amps)
2 x 25 2 x 35 2 x 40 2 x 40 2 x 50
Min. Feed Wire Size at 75°C
THHN or Equivalent (AWG Copper)
6
8
6
8
8
8
8
8
8
Single Circuit Breaker Installation (Canada & US)
Minimum Double-Pole Circuit
Breaker Size (quantity x amps)
1 x 50 1 x 70 1 x 80 1 x 80 1 x 100 1 x 110 1 x 125
Min. Feed Wire Size at 75°C
THHN or Equivalent (AWG Copper)
8
6
4
4
3
2
1
To solve for flow rate using a derated kW use the formula:
kW x 6.824 ÷ °FΔT = GPM
°FΔT = Change in Temperature (Hot - Cold)
If actual supply voltage is less than 240V, the kW
will be reduced, see de-rating factors below:
If 230 Volt multiply kW by 0.92
If 220 Volt multiply kW by 0.84
If 208 Volt multiply kW by 0.75
Technical Specifications
Applications
Whole House water heating for residential applications
Energy Efficiency:
99.0%
including houses, condos, apartments, cabins and
Adjustable Temperature Range:
Outer Casing Construction:
Heating Chamber Construction:
Rated Voltage:
Plumbing Connection:
Minimum Flow to Activate Heater: 0.2 GPM
Operating Pressure Range:
Pressure Drop (psi):
Altitude Limitation:
Safety Hi-Temp:
Approvals (UL and cUL):
32 -140°F (0-60°C)
Stainless Steel
Copper and Bronze
240 Volt, 1 Phase
3/4”
cottages.
Commercial Properties including hotels, motels, resorts,
multi-family houses, and businesses where space is a
premium and reduced operating cost is critical.
Supplemental water heating for solar or geothermal
5 - 150 psi
3 psi @4 GPM
None
150°F (65°C)
UL 499
CAN/CSA-C22.2 No. 64-M91
5 Year Heating Chamber
3 Year Electrical
water heating systems.
Point of Use water heating for fixtures that are
physically located a long distance from the existing
water heater.
Industrial Process water heating for process systems
requiring continuous or cyclical hot water.
Warranty:
Radiant Floor heating to provide heated water for a
closed loop heat transfer system.
Efficient · Reliable · Energy Saving
The Hubbell Tankless Electric Water Heater is 99% efficient making it your best option for water heating.
Unlike storage tanks which are constantly working to maintain a tank full of 140°F water which is then
mixed with cold water when delivered to your fixture, the Hubbell Tankless unit heats water on demand
and precisely to your desired temperature (typically 105°F or 40°C). When you replace a tank water heater
with a Hubbell Tankless you eliminate 365 days of “stand by heat loss” and save energy by delivering hot
water more efficiently to the point of use. The end result is a savings of up to 40% on the water heating
portion of your utility bill.
Why Hubbell Tankless?
Gain valuable space when you replace your
conventional tank water heater with a Hubbell
ElectricTanklessWater Heater .
Enjoy unlimited hot water. Simply setThe Hubbell
ElectricTankless Heater to your comfort temperature
setting (typically 105°F or 40°C) and get consistent
and endless hot water.
No more inefficient mixing of cold water.
Begin saving up to 40% on the hot water heating
portion of your utility bill.
Proven and reliable technology.
Since 1920 Hubbell has been manufacturing high quality electric water heaters for the residential, commercial,
industrial and marine/naval markets. Today, Hubbell is providing new state of the art “Whole House Electric
Tankless Water Heater” technology that is the ‘wave’ of the future. It produces an endless flow of hot water at a
consistent and accurate temperature while reducing your hot water heating energy costs by up to 40% when
compared to a conventional tank type water heater. Experience the Tankless Advantage today with Hubbell.
Contact Hubbell Via Email:
Sales Assistance [email protected]
Technical Support [email protected]
PROUDLY MADE IN THE USA
WATER HEATERS SINCE 1920
The Electric Heater Company
P.O. Box 288
Stratford, CT 06615 USA
Phone: 877-649-8589 Fax: (203) 378-3593
Continuing research results in product improvement; therefore these specifications are subject to change without notice. For the most updated information, please visit us on the web at www.buytankless.com
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