Any Code Goes
The code that describes the use and occupancy classifications.
What is the California Building Code?
Shaft enclosures that are penetrated by ducts or air transfer openings shall be protected with this.
What is a Fire/Smoke Damper (FSD)?
Flex ducts shall not be more than this distance in length.
What is 5 feet?
This cost effective damper is required by code to prevent unintended leakage from the outside through the fan system when the fan is not operating.
What is a backdraft damper?
A 3/4" condensate drain can handle up to this amount of cooling tons.
What is 20 tons?
This piece of equipment is installed in every hydronic system to control thermal expansion.
What is an expansion tank?
DOUBLE JEOPARDY
Seismic anchorage calculations are required for floor/roof mounted equipment weighing over this amount.
What is 400 lbs?
This is an over pressurization device for pressure vessels or boilers.
What is a pressure relief valve?
For VAV zones with DDC, reheat airflow cannot be more than the design OSA or this percentage of the maximum design airflow.
What is 50%?
This arbitrary unit is assigned to plumbing fixtures to determine water demand.
What is fixture units?
This is required in systems with economizers that have an occupant density of 40 sqft/person, and is a single zone or multiple zone system with DDC.
What is demand control ventilation?
Fire/smoke dampers are not required in corridor penetrations due to different requirements. List one of them.
What is duct constructed of steel not less than 0.019" thickness (26 gage) and no openings serving the corridor?
Air moving systems supplying air in excess of this CFM shall be equipped with an automatic shutoff in case of smoke.
What is 2,000 CFM?
Air handlers over this cooling capacity require a water or air economizer.
What is 54,000 BTUH?
List one of the three methods used to size gas pipe.
What is longest length, branch length, or hybrid pressure?
The code that shows the ventilation rates for high rise residential buildings.
What is the California Mechanical Code?
A typical office building is classified as this type of occupancy.
What is Type B?
The refrigerant concentration limit of R410A in an enclosed space.
What is 25 lb/1000 ft3 ?
Where a return air plenum is used to distribute outdoor air to a zonal heating/cooling unit, the outdoor air shall be ducted to discharge, in any direction, within this distance to the unit.
What is 5 feet?
This system is sized based on measurements in "inches per hour".
What is storm drainage?
This type of heating is not allowed for space heating unless it is less than 10% of the total design output of all heating equipment.
What is electric resistance heating?
Stairways shall have headroom clearance of not less than this height.
What is 6'-8"?
DOUBLE JEOPARDY
Environmental exhaust shall not terminate less than this distance from property line, this distance from a forced air inlet, and this distance from openings into the building.
What is 3 feet, 10 feet, and 3 feet?
In climate zone 9, this percentage of efficiency allows your system to NOT utilize an economizer.
What is 30%?
List an example of an approved plumbing receptacle for condensate.
What is a trapped/vented receptors with air gap fittings, leach pits, and plumbing fixture tailpieces?
In layman terms - sink tail pieces, mop sinks, floor sinks, hub drains, and dry wells