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Calculate the required airflow in cubic feet per minute of an electric furnace that draws 60 amps at 240 volts. The measured temperature rise is 45 degrees F (Refrig. text page 813)

A branch take off fitting shall not be installed closer than 18 inches from a trunk end plate.(Manual D sec. 5)

A thermistor start assist kit is used on:

The typical shut down sequence for a direct ignition burner system using a furnace control board is::

On a 230 volt system the voltage from one leg to ground should be

As the secondary air is decreased, the percentage of carbon dioxide in the flue gases increases, and the chance of producing carbon monoxide becomes greater.

Unit and wall heaters are typically mounted on the ceiling or wall and use a fan to distribute the heat by forced convection. They are controlled by a low volt thermostat.

In a capacitor start-Induction run motor a capacitor is placed in ______ with the centrifugal switch and the start winding

In a series or parallel circuit, you can find the total power by adding the power produced through each resistance.

The outside summer design conditions listed in the Manual J Table 1 are based on ASHRAE weather data. This means that only ______ percent of the time the outdoor temperature will exceed the summer design temperature.