Mid position valve – The final chapter

Ok, after eventually getting up I stripped the valve down properly this time. The mechanism was all a bit bent and the micro switches were missing the blades, this was all probably down to years of heat expansion / contraction though. Nothing really wrong that a bit of plier manipulation and some WD40 didn’t sort out. So then it was on to the actual valve bit itself. It has very little movement, probably 30 degrees at best. So I attached a big adjustable to it and forced it over to the B side, which is water only, I then fired up the boiler. With my posh new differential thermocouple machine I was managing to get a temperature differential of about 20 degrees, so that all looked fine. I then moved the valve over to the A side, which is heating. This is where I thought I had a big problem as I wasn’t getting much of a differential at all, plus at times it was actually negative, so the water was hotter than the heating. I checked all the valve again, free movement, so I was thinking the valve was leaking on one side. Then I had lunch, and that visionary moment, where you think, ah yes, big tit. So what was actually happening was quite simple. On the A side of the valve is the nice very long collection of pipes doing the heating, containing many litres of water. On the B side is quite a short loop just going to the water tank. The water tank contains about 60 gallons of water at about 55 degrees. So what happens when you move the valve to the A side? Well the B side now just contains stagnant water, which is being heated in a massive heat exchanger in the water tank. So as there is no flow, the water tank will now be heating the water, not the boiler, it’s all acting in reverse. So what I did was turn off all the hot water heating on the programmer, then throughout the day I just used all the hot water as normal. Then sure enough when the heating comes on I’m now getting a 30 degree temperature drop across the valve as the B port pipe now contains nothing but cold water. So finally in conclusion, apart from the actuator being a little big old and knackered and could probably do with replacing at some point, there is actually nothing wrong with the valve at all.

Went to Tesco’s picked up food as mother was coming to dinner. Then spent the afternoon in a mixture of cleaning and wine making. I bought a kilo of Strawberries and a huge bag of sugar. Then using my new wine making stuff I proceeded to make a Strawberry fruit wine. Well I now have a bucket of fermenting something or other anyway.

About to have a shower when I decided to go outside and tell the taxi that was waiting that he should actually be at my mothers rather than my house, he read the source and destination the wrong way round. At least that company is cheap.

Jamie was finishing at 8, mother arrived just after 7. I must admit both her and the dog were very well behaved. She only came out with a few dull anecdotes. Managed to get her on a good quality red wine and she enjoyed the food. She only gets fed once a year so good she enjoyed it.

After she went Jamie decided it was then a great time to put the Sonic Meccano together. Getting stickers on the right way round after a couple of bottles of wine was an interesting challenge. Still good fun had by all.

And this is Boxing Day

So today started in the afternoon. Not because of any ill effects of the night before, I felt all fine and dandy, but just because we couldn’t be arsed to get up and the only thing we had planned was to go over to the mother-in-law’s anyway, and I wasn’t in a major hurry to do that. So we stayed in bed and watched the Christmas ‘Doctor Who’ episode, which wasn’t too bad this year, if a little random in places.

We did eventually get up and then pack the dog off into the car and drove, well almost sailed there was so much standing water, to Weston. The dog then proceeded to be mainly a pain in the ass for the next couple of hours. I had wine related gifts, Jamie had plenty of tat and the dog got a bone. We left after demolishing all the food.

Got home, tidied up. Red instructions for wine making kit again, looks like I have to buy lots of things and then buy more things that’s aren’t in the kit. Still, got to start somewhere. So Jamie has used all the hot water, so need to wait for that to recharge before I can have a bath. So tomorrow then it’s looking at the mid position valve and then may be some wine making. Mother is coming over for a curry in the evening, I’ve booked a car for her.

So this is Christmas

Woke up early, mainly because Jamie was snoring like a train. So stripped down part of the mid position valve at 6AM. Then went to sleep in the spare room, where I slept quite soundly until the dog discovered where I’d got to at about half eight.

So breakfast served and dog de-peed, Santa had left a stocking by my coffee machine. Went back to bed (same one as Jamie this time), unwrapped contents of stocking, mainly chocolate based. Got up, I walked the dog, together with what seemed like the rest of Bradley Stoke dog owners. Came back, Jamie had got up by now. We unwrapped presents and were vaguely nice to each other. Jamie got a PS Vita, I got a home brew kit.

Then we sorted everything out, packed the dog away and then got picked up by mother. Went over to my sisters. There’s Shaun cooked a lovely lunch as usual. My mother proceeded to tell countless anecdotes with no to them whatsoever. So was dressed in a floral flock wallpaper style dress, I’m sure I’ve eaten in a booth covered with the same material before. My sister wore a sort of brown number and looked a bit like a tubby Lara Croft. The rest of us made no effort, except Jamie did wash.

We stayed there until mid afternoon when we came back home to sort the dog out. I promptly fell asleep. Jamie then woke me ten minutes before we were being picked up again. So quick shower and then we returned. We then ate various party food and I fell asleep again. Between me and my sister I think we cleared off about eight bottles of wine. We ended up playing Pictionary, the answer to everything was of course ‘Vagina’. My mother then made a rather interesting faux pas by calling the youngest nephew a ‘faggot’, Jamie then berated her for the next half hour about it, she kept saying that ‘she didn’t mean it like that’. I just tried to explain that he wasn’t a faggot but merely a medium height potential homosexual. Anyway good night had by all. We returned, drank more lager and ate cheese and pineapple while watching Christmas TV.

Nice relaxing Christmas eve, installing a new central heating programmer

So started the day off fairly early, considering I had the day off. Went to TLC and bought a new central heating programmer after working out the old one was fairly knackered. Got a rather nice Horstmann seven day one, dual channel for water and heating, all LCD, all shiny shiny. Parked up in Cotham and walked into town, it wasn’t that busy considering. Bought a new wall planner. Got back, had lunch. It’s still officially a Monday, so Chicken sandwich it was. Then walked the dog.

Then decided to crack on with replacing the programmer. So started with putting a big hole in the airing cupboard for the cable to go down. This was fine, except the original wiring centre appears to be mounted on some sort of batten and the existing wires are coming through it, so no way on earth I’m going to get behind it, so instead have to come out slightly above it and bring the cable out there, then surface mount it to the wiring centre. Anyway, got the back plate mounted and wired. Then tried to get the timer on, there was no way it wanted to fit. Removed back plate from wall, still no go. Then unwired it all, no chance. So removed all the slot connecting things, then finally it fitted. Turns out that it requires a huge amount of force to get the damn thing to close up and connect properly, so wired it all back again and gave it a big shove, now it was mounted. So back to the wiring centre, I just connected the earth, live and neutral and fired it up, all appeared to be working fine. I used six core and earth cable. Every core was black apart from the earth, but each was individually numbered on the insulation sheath which was very strange. So then removed the old programmer wiring, which ascended somewhere from the kitchen and replaced with the new one. Then removed the old programmer from the kitchen and rewired all that behind a blanking plate. All appears to be working fine, so programmed it up.

My other new gadget arrived today, which is a dual thermocouple temperature reader. This basically means you can clamp a sensor to both flow and return pipes and it will give the temperature differential. I’ve got this at the moment stuck on the A/B outlets of the mid-position valve. Even though it’s going through the internal motions I’m still not convinced it actually works at all, I’m getting very little differential between A/B when it goes through the three modes. I think I’m going to whip the mechanism off the top and check that the valve under it is going through it’s full range of movement. Certainly the spring arm seems to be shot on it.

And there we go, that was my fairly productive day. Christmas day tomorrow. It’s still a Monday though, so salad as usual. I may have a glass or two of wine though.

My ass is a temple. Just because you look like Buddha doesn’t mean you can enter it

Started the day off somewhat slowly and watched plenty of items on iPlayer. Finally got up and had lunch. Jamie was working today. Took the dog out, she was being a pain in the ass so that was fairly short.

Came back and finally looked at the heating timer, it is indeed fucked, the heating terminal is permanently live no matter what the switch is set to. A nice job for Christmas.

Finally got round to wrapping everything up. Didn’t make a particularly good job of it, mind you I didn’t exactly put much effort into it either. So that’s all done. Did some hoovering and a little bit of cleaning ad no cleaners this week. Looked at heating timers, think I’ll go for the Horstmann one, it’s a bit more expensive but I already have a Horstmann thermostat that I have been taking house to house and that’s always worked flawlessly. So pick that up tomorrow and probably wander into town as well. No gym, as it’s closing early, tut. Bath and wine time I think.

Don’t worry dear I’m sure it just shrunk in the wash

Started this morning with Jamie trying to find something green to wear. He asked to borrow something of mine, except mine is all size small. He then squeezed into something red, to which I said “Don’t worry dear I’m sure it just shrunk in the wash”.

Watched several things on iPlayer as it was hammering down with rain. When it reduced to a drizzle I took the dog out. Then ventured into Tesco’s and did the shopping. The shop itself wasn’t too busy but the car park was fairly rammed.

Had lunch. Then decided to pick up some sand for the lizards. This is for their tanks, not some kind of play pit. So got that, then ventured into Maplin, where I bought various tat. Parked up on Whiteladies Road, paid a fortune on parking then decided it really was far too wet to be going anywhere, so bought a tin of chopped tomatoes and went back to the car. Drove to mothers, picked up my Christmas cake, and very nice it is too.

Came back, attempted to fix a toy fruit machine, failed, put said machine in bin. Did the accounts. Cried over being paid money I was owed, well didn’t cry over that bit, just the two grand of tax. What the lord give ‘uth the tax man take ‘uth away.

I’m now going to empty the dish washer, let the dog out for a piss then take a bath. Tonight once again I’m making a curry. And no it’s not bloody Turkey curry. Tomorrow I look at the heating timer, I can hardly contain the excitement.

So that’s it work wise for 2012

I spent the entire day working on the new project again. It’s still interesting, but does require some proper design now after a lot of messing about. But that’s going to be a job for the new year. That’s it now for 2012 work wise.

So have a ton of projects to do over Christmas. No idea how many will get done. Will probably start with the heating and go from there.

Walked the dog. Went to the gym. That’s about it really, time to move into Christmas mode, and that as normal will start with a bath. And I need to phone my mother, I’ll turn into Scrooge then.

Don’t get that tin of pineapple unless it’s Dolphin friendly

So spent the day working on the new project, which is very interesting. Lots of maths, lots of probability theorem. It doesn’t do anything exciting yet, just produces lots of data tables. Still, behind every great game, is usually a great spreadsheet.

Walked the dog in the rain. Sarah came round and brought the carpet cleaner back. Another fun job I can do over Christmas again.

Then we decided to go to Tesco’s and do a bit of a Christmas interim shop, you know, pick up beer, crisps, beer. Got to the till, I say to Jamie that I forgot the pineapple for the pineapple chunks. So off he goes and gets a couple of tins. He comes back and says they are buy one get one free and puts them on the conveyor and I say, “Only get them if they are Dolphin Friendly mind.” Dutifully he picks up one of the tins and starts scanning the label. The old ones are indeed, still the best.

Went to the gym. Ran. Ate salad. Now no new torture porn has turned up this week, so will be catching up with telly instead.

Last work day tomorrow. Last gym day before Christmas as well. Still waiting for a few things to turn up in the post.

Well the tree is up at last

So started the day at 6:30AM, the dog was already on edge and had three attempts at eating her breakfast. Mind you when she got into the car she was fine. I was back in bed by 7:15. I didn’t start work until about 10:30, but I have been doing a lot of extra hours recently in research.

Started by adding some of Al’s requests to the TCP/IP stuff then fixed a few issues found in the audio library. Worked through lunch as the weather was just appalling. Work for the rest of the day was very interesting, it goes back basically to stuff I was working on probably twenty years ago. Almost to the stage where I’m going to hook out twenty year old code. It’s very math based, but I find it very interesting.

Decided not to go to the gym, but to have a bath and settle down for the evening. Managed to get through a hell of a lot of stored TV. Finally we got the tree up. So I guess it’s beginning to look a lot like Christmas.

I whipped the top off, all looked fine to me

So looked into a release build issue on Android, Java functions were vanishing when being called from C++, turned out to be proguard causing them to be scrambled. Then spent the rest of the day finishing off my tcp/ip implementation. All done and tested and running on iOS, Android and PC.

Walked the dog. Then curiosity got the better of me so I got some thin screwdrivers out and prized off the heating timer cover. To my disappointment it all appeared to be wired correctly. Also my initial guess that the yellow wire of one of the four cores was connected directly to the boiler was correct, so the pump overrun cable was all fine. So it looks like the timer is buggered and the heat output is always live, basically the relay is shot. I need to test this more and also test that the 3 port and the tank stat are working correctly as well. If the timer is gone then I may very well replace it with on in the airing cupboard to get it out of the kitchen. If possible then I can hopefully run a wire from the old timer position direct to the boiler and I can then use this as the pump overrun and switched live and get rid of the new cable I put in. I’ll then put a blank over it all. Hopefully that will then solve all the remaining problems.

Went to gym. Ate salad. Still haven’t put the Christmas tree up. But have bought the Christmas Radio Times.