Hubbell Electric Heater Company 240-3 24 kW How Does The Hubbell Tankless Water Heater Work?

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.			110-2	145-2	165-2		180-2	220-3		240-3	280
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Electrical Requirements
kW @ 240V			11	14	16		18	21		24	27
Amps @ 240V			45.8	58.3	66.7		75.0	87.5		100.0	112.5
Min. Recommended Amperage to Home			100	100	125		150	200		200	200
Multiple Circuit Breaker Installation (US Only)
Minimum Double-Pole Circuit			2 x 25	2 x 35	2 x 40		2 x 40	2 x 50		2 x 60		2 x 60
Breaker Size (quantity x amps)										3 x 40		3 x 40
Min. Feed Wire Size at 75°C			8	8	8		8	8		6	6
THHN or Equivalent (AWG Copper)										8	8
Single Circuit Breaker Installation (Canada & US)
Minimum Double-Pole Circuit			1 x 50	1 x 70	1 x 80		1 x 80	1 x 100		1 x 110	1 x 125
Breaker Size (quantity x amps)
Min. Feed Wire Size at 75°C			8	6	4		4	3		2	1
THHN or Equivalent (AWG Copper)
If actual supply voltage is less than 240V, the kW				To solve for flow rate using a derated kW use the formula:
will be reduced, see de-rating factors below:				­		kW x 6.824 ÷			°FΔT =			GPM
If 230 Volt	multiply kW by	0.92
If 220 Volt	multiply kW by	0.84			°FΔT = Change in Temperature (Hot - Cold)
If 208 Volt	multiply kW by	0.75