thorn apollo timer needed

[PlumbBobBob]

hi chaps a customer of mine has just contacted me about the timer on their boiler. they say it's a thorn apollo and it needs a new timer they've sent me pics of the timer and the wiring diagram for it
can anyone tell me if you can still get them i suppose not lol. can you replace with something like a drayton or honeywell? thanks in advance. obviously not going to touch gas. if gas is involved in changing will tell them to get a gsr.

 

[Billy Bob Bob]

clock is NLA but you can fit a remote clock just follow the wiring instructions

 

[PlumbBobBob]

cheers mate. so all the switches remain in use just with a separate clock?

 

[Billy Bob Bob]

the thermostat switch would but the other 2 would be dead

 

[Rickster123]

Found 1 on eBay Steve £198!!!

 

[PlumbBobBob]

so somthing like a drayton one channel timer then? or this

 

[quality]

Apollo good old boilers / either way its only a switched live so any controller / programmer will do

 

[Billy Bob Bob]

so somthing like a drayton one channel timer then? or this View attachment 5175

is the system a y or s plan? you will need 2 channel

 

[Rickster123]

Myson Thorn B4161 Apollo Programmer Kit Apollo 30 -80B Fanfare Si C | eBay

 

[Billy Bob Bob]

Myson Thorn B4161 Apollo Programmer Kit Apollo 30 -80B Fanfare Si C | eBay

dick turpins gas spares

 

[quality]

is the system a y or s plan? you will need 2 channel

What do you recon gravity hot water with pumped return

 

[PlumbBobBob]

is the system a y or s plan? you will need 2 channel

cheers mate, it's an odd setup two separate boilers one for heating and one for water

 

[Rickster123]

dick turpins gas spares

I bet you could've bought the boiler for that price when it was new!

 

[Billy Bob Bob]

What do you recon gravity hot water with pumped return

if he gets a drayton lp series clock its suitable for both,you just position a link on the back to fp or gp

 

[PlumbBobBob]

Myson Thorn B4161 Apollo Programmer Kit Apollo 30 -80B Fanfare Si C | eBay

don't think cust will wear that lol

 

[Billy Bob Bob]

LP722 7 day programmer Drayton, Invensys. Heating & Hot water Timer | eBaythis will cover both fully pumped and gravity domestics Steve

 

[joezea]

It will be quicker to fit an external programmer!

 

[Mike Jackson]

As there are seperate boilers for heating and hot water you'll just need a single channel time switch.

 

[tamz]

You could probably fit a grasslin or other plug in mechanical timer into it. They are all the same size and fixings and the wiring would be easy to figure out.

 

[quality]

if he gets a drayton lp series clock its suitable for both,you just position a link on the back to fp or gp

We know that I was wanting to find out what the system installed was and could advise

 

[PlumbBobBob]

cheers martin i've got one of them in the van or the iflo version

 

[Billy Bob Bob]

We know that I was wanting to find out what the system installed was and could advise

we dont know yet steves not told us if its s plan,y plan or pumped heating and gravity domestics i carry the LP 2 channel in stock as it fits all

 

[tamz]

It will be pumped. Can't (couldn't) do gravity off an appollo

 

[quality]

we dont know yet steves not told us if its s plan,y plan or pumped heating and gravity domestics i carry the LP 2 channel in stock as it fits all

Keep ya hair on
tamz has narrowed it down

 

[Billy Bob Bob]

Keep ya hair on
tamz has narrowed it down

not having a pop quality i could not remember what the appolo could be used on

as tamz just pointed out its fully pumped only i remember now its a low water content boiler so only suitable for FP

but you asked meWe know that I was wanting to find out what the system installed was and could advise

i dont know? but tamz as cleared it up

 

[quality]

At least we old blokes are good for something

no pop intended its good we online mates

 

[PlumbBobBob]

as i said there's two boilers this thorn and another one for the hot water i saw it last year when they moved in. if i recall correctly there is a pump under the thorn. the hot water boiler has replaced the cylinder i think it is a hot water only combi as there is only cwsc in loft.

 

[Billy Bob Bob]

as i said there's two boilers this thorn and another one for the hot water i saw it last year when they moved in. if i recall correctly there is a pump under the thorn. the hot water boiler has replaced the cylinder i think it is a hot water only combi as there is only cwsc in loft.

so the appolo drives the heating and a multipoint geyser type boiler does the hot water? now thats weird the apolo could drive a cylinder what a rubbish way to fit a system in that case steve you just need a basic single channel clock

 

[PlumbBobBob]

it looks like the other boiler is mounted where the cylinder used to be one side of the window in a bedroom and the other thorn on the other side of the window in the same room.

 

[PlumbBobBob]

been today to fit the new timer. got a horstmann centaurplus c17 in the end. have tried wiring it up but came to a dead end can anyone help please. which set of wires do i connect to, there are three pump, live to boiler and thermostat i think. in the apollo wiring diagram it says if fitting an external controller to remove a link between hw and on had a look but there isn't one i could see.

 

[stevetheplumber]

if the existing clock works on continous you can leave it in situ
wire the new clockwith a live and neutral to the motor and use the clock switch to break the wire to the switch live on boiler this is assuming that the boiler is purely doing heating and needs a time switch rather than a programmer

 

[PlumbBobBob]

yes heating only

 

[Billy Bob Bob]

ignore the thermostat in the drawing steve

 

[PlumbBobBob]

thanks mark so to be clear in my fuddled mind lol. you take lne feed from same feed as boiler? and use thermo as switching wires? this a bit different from y plans lol

 

[Billy Bob Bob]

thanks mark so to be clear in my fuddled mind lol. you take lne feed from same feed as boiler? and use thermo as switching wires? this a bit different from y plans lol

live from boiler or anywhere else its common on the boiler circuit then intercept the switched live wire one end into the boiler S/L and into clock the other from the other terminal on the boiler into the clock you will have to trace what goes where on the boiler but basically your making a switch mains in, live in live out