Heat Emissions Units Flashcards
(14 cards)
In which direction does heat always travel?
From warm objects to cooler objects
The primary purpose of a heating system is to:
Provide comfort to the individual in the space
What is considered when calculating heat loss?
Interior walls of the building
What is the heat loss limitation of a series-loop system?
60-70 MBH
ODT is an acronym for:
Outdoor design temperature
What is the definition of zoning?
An area or portion of a heating system served by one or more loops and individually controlled
What is the main function of the adjustable damper on a heat transfer unit?
To slow or increase the convection airflow
How much heat is available from 15’ of wall f’in baseboard with a water supply of 1 gpm at 82.2* c (180*f)
8775 Btu
What must be selected prior to installing rough-in piping?
Heat transfer units
What is best location for installing baseboard fin
On exterior walls with or without windows
How much heat is available from 25’ of finvector baseboard with a water supply temperature of 88*c two tier (rows) of 41/4”x 41/4” f’in with 11/4” IPS steel pipe
47,000 Btu
What can untreated water cause in a hydronic heating system?
Ferrous materials to oxidized
What is the main function of a zone valve in a hydronic heating system?
To start and stop the flow of water to a circuit
What are two types of hot water unit heaters?
Blow-through and Draw-through
