Furnace
Coil
ODU
Ductwork
HVAC Misc
100

The flue pipe needs to have more of this.

What is more Vertical than Horizontal?

100

The identifier for drain termination 

What is green tape?

100

This is the height the ODU should be above grade.

What is 3"s?


100

The type of duct work allowed in the crawl space.

What is Metal?

100

The width of the walk way to the indoor unit

What is 24"s?

200

The proper way to get combustion air to a mechanical closet.

What is a high and low pipe?

200

What is the measurement in inchs past the coil the drain pan should be.

What is 3" all the way around?


200

Location of the proper breaker size of the unit

What is on the data tag on the side of the unit?


200
Type of sealant allowed to seal duct work.

UL Rated mastic tap or paint. 

200

Clearance in front of equipment 

What is 30"s?

300

This is not allowed to run through the furnace

What is gas flex?

300

The protection needed to prevent damaged inside of the home.

What is over flow protection?

300

When setting the ODU what should you make sure you are away from?

What is the meter and gas meter? Bonus: Dryer vent

300
The gauge of metal the we run for residential. 

What is 28 gauge

300
You have a 4 ton furnace and installing a 3 ton system. What should be done to the furnace? 

Lower the blower speed

400

The amount of flue pipe to be sticking out of the flashing.

What is 18-24"s?

400

The amount of inchs of fall per foot

What is 1/4" per foot?

400

Armor flex must cover what and stop where?

Suction line and stop and the valves 

400

The amount of strap that is needed to support ductwork.

What is every 5'?

400

When you turn the system on what should you check on the indoor unit. We get failed on all of the time

What is airflow leaks

500

ML180UH07036B is a furnace. Identify what each letter an number means.

ML = Meter Line. 1=heat stage.80=%.UH= Upflow or Horizontal. 070= BTU. B=Cabinet width 

500

This must have protection from the casing

What is the copper line?

500

The protection of the copper from rubbing.

What is pvc sleave? 

500

Ductwork when ran under the home must be what

4" off the ground.

500
The new code for upflows in mechanical closest. 

What is a separation from combustible material?