Multi Family blueprint reading Flashcards
If an RTU was 10 ton (4,000 CFM), and the economizer was set at 15%, how many CFM of fresh air would be delivered to the conditioned zone?
600 CFM
4,000 x 15%
What is infiltration?
How unconditioned air enters a conditioned space
What does HEPA stand for?
High Efficiency Particulate Arrestor
What is the minimum number of suites in a structure that would make it multifamily?
2 or more individual suites
How is an insulations effectiveness measured?
R-value
What type of equipment can provide ventilation but does not have a provision to control humidity?
HRV
What must be installed in all ductwork that penetrates fire rated walls?
Fire damper
What type of HRV system is not coupled with any other HVAC equipment and stands alone with its own ductwork distribution of fresh air and stale exhaust?
Fully dedicated HRV system
What makes an MUA indirect fired?
Has a heat exchanger
Name 3 areas in a building that are negatively pressurized zones?
Commercial kitchens
Individual suites
Parkade
What can be installed in an elevator machine room to eliminate pressurization issues?
Transfer air duct
What is the number one reason for positive pressurization in hallways and stairwells?
Provide safe evacuation during a fire
What is the most common type of residential multi equipment installation?
Furnace providing HVAC
What does a dynamic smoke ventilation system do during a smoke event?
Exhaust smoke or provide clean pressurization air
What is the most efficient method of heating multi family structures when space, operation and installation costs are considered?
Baseboard radiant heating
What piece of equipment might be used to counteract the effects of high infiltration in a convenience store?
Air curtain
Which 2 agencies regulate/test the construction and installation of fire protection devices?
NFPA and ULC
What are 3 styles of fire dampers?
Curtain
Single blade
Multi blade
What component on a heat pump allows it to heat in the winter and provide cooling in the summer?
4 way reversing valve
Short walls built around the perimeter of a building are called?
Parapet walls
The roof triangle consists of rise, run and ?
Slope
The distance from one edge of the roof to the other is called?
Span
If a roof has a run of 12’, what is the span?
24’
Span is double the run
What is required to cover the top edge of base or step flashing?
Counter flashing
What type of flashing is provided on the top surface of a wall and comes with a drip edge?
Coping
If a 2” gas line penetrates the roof, what is the minimum size pitch pan that can be used?
6” x 6”
2” minimum clearance on every side
The sides on a gum box must be a minimum of how many inches high?
4”
What are the 3 most common materials for metal roofs?
Copper, aluminum and galvanized
Which is the most durable roofing material?
Copper
What is the recommended ratio for inlets to outlets used for natural ventilation?
1 to 1
Which ventilation system allows moisture to be transferred between air streams?
ERV
What is the high or positive pressure side of a building called?
Windward
What is the low or negative pressure side of a building called?
Leeward
What type of equipment gives occupants the most control over room temperature in a motel?
PTAC
Packaged terminal air conditioner
Name 2 types of solar space heating and the name given to the combination of these systems?
Passive, active
Hybrid
What type of heat pump is the most common?
Air to air heat pump
If there are changes to blueprints during construction, where would these need to be documented?
As built drawings
Smoke dampers are designed to close in response to what?
Smoke alarm
What is installed in a fire damper to hold it open under normal operating conditions?
Fusible link
Grilles and diffusers are found where on an HVAC drawing?
On a callout
Which type of damper is designed to stop both heat and fire?
Ceiling radiation damper
What must be done to duct when it is to include acoustic insulation?
Upsize the duct as to maintain internal dimensions
If you were to install a fire damper in a vertical wall, in horizontal duct, would you order a vertical or a horizontal damper?
Vertical
Specifications on a commercial blueprint are called?
Divisions
What must be included when installing a heat pump in Alberta?
Back up heating system
What is the clearance guideline for a fire damper installed in a floor or wall?
Minimum 1/8” for every 12” of dimension
Maximum 2” bigger than the minimum size opening
What type of fire damper has the blades out of the airstream?
Type B
What must you refer to when installing fire protection devices?
Manufacturer’s certified installation instructions
What is the minimum rated fire damper that can be installed in a wall with a two (2) hour fire rating?
1.5 hour fire rating
Name 3 types of radiant heating?
Wall panels, in floor and ceiling panels
Most common type of equipment used to condition (heat/cool) a building?
RTU -roof top unit
What do the letters EF stand for on a blueprint?
Exhaust fan
What is needed beside a fire damper, to reset the fusible link if a grille or diffuser is not present?
Access door
What is the most economical way to heat multi family structures?
Radiant heating
Smoke dampers need to be installed at or within ________ of the smoke separation barrier, as well as before the duct takeoffs?
24”
If a roof slope is 1 in 8, what is the amount of free ventilation area required in an attic?
What if the roof slope is 1 in 6?
1 in 8-1 square foot of free ventilation for every 300 square feet of insulated ceiling area.
1 in 6-1 square foot of free ventilation for every 150 square feet of insulated ceiling area.
In a crawl space, what is the unobstructed vent area required for natural ventilation?
1square foot for every 500 square foot floor area
