Water valves under boiler - Baxi 800 - identify...

[ukjules]

I have a baxi800 and an trying to ready myself to balance the 7 radiators in house I have just moved room . I may need to re pressure the system so in this pic are the levers for sure .
Can anyone identify them ?
What is the yellow one ?

Your help be so much appreciated.

(I have another question as have to balance the system as some of the Rads have the TRV on the wrong side. the trv's are bindirectional)

 

[gas112]

Yellow is the gas so no need to touchit
to re pressure the boiler You just pull the green lever down

 

[ukjules]

Thanks so much for info !!! What a site this is !!
I have one issue as I'm red green colour blind ....
I dont see any green in the picture .....

I attach a picture of all the levers. Yellow = gas (I ain't going near that)

so the other three are water and middle one of them (that looks half way down ) is to release water into system ?

 

[gas112]

the lever indicated by your arrow 2nd from right

 

[ukjules]

Thanks so much . prepare for more damned fool questions .
just ordered a Lazer Heat thing to assist project balance ... this when I'm confused as on some rads TRV is on wrong side where water flowa in. i.e the hot water comes in via lockshield valve .....

seems illogical to balance a radiator in this state

 

[CountryFan]

I don't know why you keep saying trv is on the wrong side. If non bi-directional then fair enough, but you said they are.

 

[ukjules]

good point
BUT
I have just moved into the house and 4 of the heads trv, didn't work. they were non functioning. nothing to do with pin . The pin on all the TRV valves works fine. iv bleed all rads - all ok.

So I've been looking at the system and I bought 4 TRV heads that fit. I realise that just putting on a new head doesn't change the valve so the valves may or may not be bi-directional....

(The four heads I bought come with the valves and are bi-directional but I have not fitted the valves)

All I know is last night's check the first two radiators the pipe that heated up first upstairs in the two rooms was on the lockshield side.
There are five downstairs which I am trying to find the sequence.

I have an infrared heat monitor arriving today. to do the balancing which I think is 12° C on the outflow side.

What I'm saying is it seems a logical to me to have put these valves in on the side that is the outflow. I have to either assume they are bi-directional or not.

 

[gas112]

good point
BUT
I have just moved into the house and 4 of the heads trv, didn't work. they were non functioning. nothing to do with pin . The pin on all the TRV valves works fine. iv bleed all rads - all ok.

So I've been looking at the system and I bought 4 TRV heads that fit. I realise that just putting on a new head doesn't change the valve so the valves may or may not be bi-directional....

(The four heads I bought come with the valves and are bi-directional but I have not fitted the valves)

All I know is last night's check the first two radiators the pipe that heated up first upstairs in the two rooms was on the lockshield side.
There are five downstairs which I am trying to find the sequence.

I have an infrared heat monitor arriving today. to do the balancing which I think is 12° C on the outflow side.

What I'm saying is it seems a logical to me to have put these valves in on the side that is the outflow. I have to either assume they are bi-directional or not.

balancing on a condense boiler is actually around 20 degrees which on majority of existing installations is more or less impossible to reach even 12 degrees can be a struggle at times

 

[ukjules]

understood.
I will this eve try and balance the upstairs with the new thermo device ....

I expect the Niagara falls to come down on me but will report .....