Hot and Cold water Flashcards
(6 cards)
1
Q
What safety features would you find on an unvented hot water cylinder?
A
6 bar safety valve
Temp and pressure relief valve
Expansion vessel
Tundish
Pressure reducing valve
2
Q
What does Technical guidance document G cover?
A
Hygine
3
Q
What are 3 ways to control a pump?
A
Pressure switch
Flow switch
Float switch
4
Q
Define stratification of water
A
Water is most dense at 4 degrees as it heats it becomes less dense and it forms layers based on its temp, this is called thermal stratification
5
Q
What are some advantages of unvented hot water systems?
A
Safe if installed correctly
Less space needed
Can provide equal pressure to multiple outlets
6
Q
A
