What is typically used to protect NMD wiring outside?
Sealtite
Liquidtite
NMFC
Non-Metallic Flexible Conduit
You’re tasked with hanging 14/2 Romex(NMD) from the breaker panel to the switch handybox. How do you accomplish this?
Using Romex staples
You’re tasked with adding a receptacle to your furnace install to power a condensate pump. What type of receptacle must you use?
AN AFCI Receptacle
Arc Fault Circuit Interrupter
You’re tasked with completing a new A/c install, the current A/c get power directly from the breaker panel. What must you do to bring this up to code?
Add a Equipment Disconnect.
Outside within 10’ of unit and visible.
What type of screws do we use to fasten to concrete? What type of drill bit do we use to make the hole?
Concrete Screw/Tapcon
Carbide Drill Bit
What could be use to fasten a Thermostat to a wall in the absences of a stud or backer plate?
Drywall anchor/plug
What is used on black iron pipe before threading it into a fitting?
Pipe Dope/ Approved Teflon Tape
What are the three ways we pipe gas inside a home?
How do we transport gas in a home
Gas Copper
Black Iron Pipe
CSST(Wardflex)
Corrugated Stainless Steel Tubing
What needs to be done to Gas Copper, before you make a connection?
Clean, Ream, and Flare
(Add Flare Nut)
Cleaning and Reaming are trade practices.
On a 3/4 BLK dirt pocket, what is it’s minimum depth required?
3”
You’ve finished installing a Hybrid water tank, you’ve removed the previous gas fired tank, what most you do with the gas piping to make it code compliant?
Cap, and leak test the line
Any UNUSED line must be CAPPED
Installing a brand new Package unit/Groundmount outside, after hooking up the black iron gas piping what must be done to be code compliant?
Outdoor black Iron piping and fitting must be painted to protect it
Can CSST/Wardflex be used outside of the home?
Yes,
Above 6ft from grade not requiring mechanical protection.
Below 6ft Requiring mechanical protection or a location where it won’t be subjected to mechanical damage.
What must happen to black iron piping that is penetrating from the outside to the insdie of a house?
Wrapped with approved 10 mil tape or sleeved
What is clearance to combustibles for Single Wall (C) Vent?
What is the connection requirement?
6”
3 screws minimum 120° apart
Can you use double wall (B) vent through a ceiling?
Yes you must.
Single wall vent is not allowed
What type of vent is used on High effecient Condensing equipment?
BH Vent
(System 636)
How must BH vent be sloped?
1/4” per foot back to the appliance
80,000 Btu/h must have what clearance to windows?
199,000 Btu/h?
80,000 = 1 Foot
199,000= 3 Feet
Less than 100,000btu/h= 12”
More than 100,000btu/h= 36”
What clearance to a natural gas regulator must your intake vent be?
Propane Regulator?
Natural gas= 3’
Propane -10’
Propane is HEAVIER than the air so it will pool along the ground!
What material shouldn’t be used for a condensing furnace drain?
Copper
Steel
anything suseptible to corrosion
Condensate from a furnace is acidic,
What must be done to BH/636 vent to get a perfect fit?
Bevelled edge/ Chamfer tool
When connecting flares for refrigeration lineset, what are two key factors to follow for proper installation
Nylog and Torque wrench
What is this called?(Be specific)
Romex NMD 10/2
