The sequence of operation of a standing pilot gas furnace is ________

A) the pilot light is ignited and remains on continuously, the thermostat calls for heat, the main gas valve is energized, the furnace fan comes on
B) the thermostat calls for heat, the furnace fan comes on, the pilot light is ignited, the main gas valve comes on
C) the thermostat calls for heat, the pilot is ignited, the main gas valve is energized, the furnace fan comes on


A

Trades & Technology

You might also like to view...

With the help of sketches, explain why a running-bond wall has higher horizontal bending strength than a stack-bond wall, whereas the vertical bending strength of both walls is equal.

What will be an ideal response?

Trades & Technology

Si la configuración de ajuste de la soldadora es demasiado elevada, la soldadura podría:

a. mostrar salpicaduras excesivas y cráteres del material de base. b. quemarse a 1/2" (1,27 cm) del clavo. c. ser perfecta. d. generar un corte de electricidad.

Trades & Technology

____________________ is the process of preparing calves for the stress of being moved into the

feedlot.

Fill in the blank(s) with the appropriate word(s).

Trades & Technology

(a) Assume that the precipitate in Prob. 16.5 has a total volume fraction of 1.5 percent, and that the particles are all of the same size, with a radius equal to twice the critical radius.

(b) Compute the number of particles per cubic meter. (c) Compute the total change in free energy due to the formation of all the precipitate particles in a cubic meter.

Trades & Technology