Specifications, Definitions – Emerson W152 User Manual

Page 3

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Tank Construction

Tank Volume

Voltage

Heating Capacity

Element Type

Temperature Range

Operating Pressure

Thermostat Type

Power Cord

Water Connections

Pressure Relief Connection

Drain

Insulation

Overall Dimesions

Shipping Weight

Bronze

120 volts

1500 watts

Replaceable copper/bronze*

110˚F - 170˚F

150 psi (max.)

Resettable

3 1/2 ft. cord and grounded plug

1/2" NPT female

3/4" NPT female

1/4" Screw Fitting

High Efficiency EPS meets U.L. 94 HF-1

2.5 gallons

18 lb.

13.5" H
10.4" D

10.7" W

4 gallons

23 lb.

W152

W154

20.2" H
10.4" D

10.7" W

Definitions:

Standby Heat Loss. Measure of how well the tank is insulated. Use a Kilowatt Hour meter and measure power
consumed in a 24 hour period for a full tank at normal operating temperature and no water being added.

First Hour Rating. Measure how much hot water can be delivered over a one hour period, with a 140˚F tank
water temperature and 60˚F incoming water temperature.

Usable Hot Water. Measure of how cold incoming water mixes with the stored hot water. Start with hot tank.
Draw water at 1/2 GPM until water temperature drops 25%. Measure amout of water drawn. Repeat for
1 GPM and 2 GPM.

SPECIFICATIONS

Standby Heat Loss
120˚F (75˚F Ambiet)

First Hour Rating
80˚F Rise

Usable Hot Water
(25% Temp. Drop)

0.25 KWHr

8.6 gallon

0.50 KWHr

10.4 gallon

2.0 gallon

1.62 gallon

1.25 gallon

1/2 GPM

1 GPM

2 GPM

3.0 gallon

3.0 gallon

3.0 gallon

*must be InSinkErator compatible copper with bronze base

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