S and Y plan systems help

[dsmart]

I've got a little install test for helplink tomorrow and I've been told I'll be given s & y plan diagrams and be told to fill in the blanks.

I know the very basics about s & y plan but to be honest the most I've done on them is change a 2 port or rip the system out!!

Any pointers on what I should go over or what to expect these blanks to be ? they did hint about bypass's

thanks

 

[ShaunCorbs]

if its electrical wise think of them like light switches no power will be passed on until it reaches what it set to

 

[dancinplumba]

S plan uses two 2 port valves with bypass between pump and valves
Y plan uses 3 port valve, no bypass required

 

[stevetheplumber]

sounds much like the gas board tests probably ask you to label the diagram pump valves drain off vent cold feed header tank

 

[hammers4spanner]

Help link. ... work quiet ?

 

[dsmart]

Help link. ... work quiet ?

Sick of subbing to Bg just going to try something else lol

 

[JamesyGoosey1]

I've done it pal they put a boiler rads and a cylinder on the paper you've to draw the pipes and valves to the s and y plan remeber s plan pump on flow tee by pass and tee off two zone valves one to cylinder one to rads common ya returns from cylinder and rads y plan first tee on return is cylinder pump on flow into bottom of 3 port one to cylinder one side to rads auto air vents on both flows going to cylinder ( top connection on coil) cold feed and expansion teed into the flow behind the pump within 6 inch of each over expansion first cold feed behind the pump hope that helps

 

[dsmart]

I've done it pal they put a boiler rads and a cylinder on the paper you've to draw the pipes and valves to the s and y plan remeber s plan pump on flow tee by pass and tee off two zone valves one to cylinder one to rads common ya returns from cylinder and rads y plan first tee on return is cylinder pump on flow into bottom of 3 port one to cylinder one side to rads auto air vents on both flows going to cylinder ( top connection on coil) cold feed and expansion teed into the flow behind the pump within 6 inch of each over expansion first cold feed behind the pump hope that helps

That sounds like it's going to be fun

 

[1Steven]

Wiring Diagrams - Honeywell UK Heating Controls

This may help you.