Gas furnace parts

Front

An inducer motor draws __________ air into the furnace.

Back

Combustion

Front

An inducer motor creates a negative draft closing the __________ switch contacts.

Back

pressure

Front

When checking pressure switches the best practice is to use __________.

Back

manometer

Front

Igniters are made from silicon ________ or silicon carbide.

Back

nitride

Front

Flame sensor current is quantified in Micro ____________.

Back

amps

Front

A limit switch is an overtemperature device use to prevent overheating of an appliance such as a furnace. Limit switches are in the normally ___________ position.

Back

closed

Front

A rollout switch is ____________ resettable.

Back

manually

Front

A fan switch is in the normally __________ position.

Back

open

Front

An air temperature rise is the temperature difference between the return and heated ___________ air.

Back

supply

Front

Which tool would you not use when checking gas pressure on a furnace? Gas pressure gauge, Slack tube manometer, Dual port manometer

Back

Compound Gauge