0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Define a y plan central heating system?
The reason this system is called a 'Y' plan is because of the shape of the 3 port valve.Heated water from the boiler is diverted to the hot water coil or the radiators depending on which service the programmer is asking for and which thermostat is calling for heat. The 3 port valve also acts as a switch to turn on heating system components. Therefore you need a certain sequence of switches to work in order for the system to operate. For example with radiators:1. The programmer reaches a timed period where the radiators require heat.2. The programmer activates a live supply to the room thermostat.3. If the room is cold then the thermostat will switch this live supply to the motor in the three port valve.4. The three port valve will motor over to open the radiator water outlet. (Takes about 10 seconds)5. When the valve opens it switches a separate live supply which feeds the boiler and pump.6. Boiler and pump receive live supply and operate. Soon you should feel some hot water in your radiators.The three port valve has 2 live supplies to motor it one way or the other depending on what the system is calling for: hot water or hot radiators or both.
A system to artificially supply dry land with water?
Irrigation systems such as irrigation ditches, channels and canals artificially supply dry land with water.A river is a system which supplies dry land with water naturally, not artificially.
How much water pressure is needed for a irrigation system with a half inch main supply?
40
What is the purpose of plumbing?
The Plumbing system with your house has the role of transporting the water in the water supply system or the hot water from the heating system into your home. It is a set of well connected pipes and heating bodies that play the key role in heating up your home. I hope this helps. Bibika
What is hydraulic head in reservoir engineering?
Hydraulic head is related to the amount of energy present in a hydraulic system. Hydraulic head is composed of three components: elevation head, pressure head, and velocity head. As water loses one component of its hydraulic head, the other components increase. For example: water that falls 10 feet loses 10 feet of elevation head and gains 10 feet of velocity head. The only way a hydraulic system can lose hydraulic head is through head loss due to friction.
What are the four major components of the plumbing system?
Vent - Cold Water Supply - Drainage - hot water supply /return
What are the three major components of earths global system?
Air water and food
How are timers set up in a sprinkler system?
Sprinkler systems can use many components that control the flow of the water. A plastic piping connects the water supply to the electric valves and the sprinkler.
What is qanat?
A qanat is a water supply system used to supply a reliable amount of water to human settlements
What are the three components of human solid waste?
The three main components are bacteria, substances that your body can't digest, and some remaining water
Where does the water supply from sydney come from?
Sydney Water Management System.
Least three sources of water for supply to an automatic sprinkler system?
Gravity feed from a tank on the roof;pump from a private cistern;gravity from a municipal supply;pump from some other limited supply, if permitted by local authority.
Are honeysuckles vascular?
Honeysuckles are a vascular plant. They have a water transport system that includes roots, stems, and leaves. Any plant that has these three components is a vascular plant.
What system will change when one of its components is altered?
solar, nitrogen, and water
What three components make Earth's surface?
Soil, Rock, and water.
What are the three main components of an egg?
The main component of eggs is water.
Is a geyser a natural source of water?
Yes, a geyser is natural. A geyser requires three critical elements in order to form: a water supply, a heat source, and the proper kind of underground water circulation system.
