The outlet size on a Sanden Heat Pump’s water tank is 3/4 inch (DIN20) with a BSP thread, so be aware you’ll have to use a reducer to get down to the normal 1/2 inch (DIN15) copper pipes. At least, that’s what I was told on the phone. The Sanden specification sheet, which has legible diagrams and writing compared to the installation instructions for an Australian Sanden, says the thread is NPT – but admittedly the model numbers are different (GAU-315EQTE on the clearly Australian installation instructions, GAUS-315EQTD on the American spec sheet). It also gives the dimensions, which when turned into SI units are 756mm H x 883mm W x 362mm D for the compressor and 1490mm H x 678mm W diameter for the 315L tank. For further fun, the installation manual includes a photo of an installed system on the first page – the system is installed too close together, according to the instructions.
However, 3/4″ pipes are able to transport a greater volume of water per unit time. If you’re running warm water down them for bathing, rather than hot for subsequent mixing, greater carrying capacity means better water pressure when running multiple showers, for example. If one was replumbing a whole house, and doing so with pre-mixed warm water, replumbing with 3/4″ copper would be a reasonable thing to do.
Be aware that the cold water inlet has a maximum pressure of 650 kpa.
I’m lucky enough to have central heating in my house, and as the weather is cold in SE Australia at this time of year, we’ve been using it a bit.
Every few years a strong storm will blow out the pilot light. To fix it I climb up into the roof (fortunately I have an attic ladder fitted) and re-light it. Generally the effort involved to re-learn how to light it is more than the effort to actually do it.
So I’m doing like any good geek would: documenting it.
The unit is a Brivis Wombat 92 (I assume that means it’s a 1992 model). The instructions are written in tiny writing on a label attached to the inside of cover — so tiny it’s quite difficult to read while in the cramped roof space.
The steps are actually pretty quick and easy, as follows:
1. Make sure the heater control (eg in the house) is set to Off, and grab yourself a torch if you have to climb into the roof.
2. Take off the cover. On mine you pull it upwards, but I think my unit is actually mounted upside-down, judging from the logo on the side.
3. Find the dial. Turn it clockwise to the Off position.
4. Find the power point for the unit. The power cord on my unit leads to a power point about a metre away, mounted on a joist. Switch it off.
5. Wait a few seconds and switch it on again. You will hear a regular clicking sound – this is the heater trying to re-light. You’ve got about 20 seconds for the next step.
6. Turn the dial back to the Light position and press down on it. A couple of clicks later you should hear the pilot light.
7. If all looks well, now turn the dial to On. That’s it! Put the cover back on. Enjoy the heat.
So basically, you’re turning it off then on again.
If it doesn’t work? I guess try it again. I know in 2013 mine wouldn’t re-light, and needed a service, but that’s perhaps not surprising for a 20 year old unit.
(Edit: Added to turn the dial to On when the pilot has been lit. Thanks for the feedback!)
Go looking for any help on LinkenIn, and you get lies and incompetent software construction:
Using missile to shoot down an airliner ought to be made impossible. It may be a lack of imagination on my part, but I can’t think of a circumstance where a military force needs the ability to shoot down civilian aircraft. There aren’t a lot of manufacturers of surface-to-air missile systems, regardless of their level of sophistication and range – shoulder launched or vehicle-mounted – so changing those designs to prevent civilian shootdowns ought not be a big deal. Admittedly there are many more means of bringing down aircraft beyond SAMs, but not a lot of them have the reach to bring down cruising airliners.
Civilian airliners have carried IFF transponders since World War II, so there’s the infrastructure in place already for the identification of non-military aircraft. Furthermore, it’s a violation of Article 37 1.c of the Geneva Conventions to pretend you’re a civilian – that is, it’s a war crime with all the international condemnation that goes with that, so it’s reasonable to make weapons that refuse to down aircraft that identify themselves as civilian.
So, why is this still happening?
Unless it’s a transient, unrepeatable hardware fault, it’s not a glitch – it’s a bug. Glitch makes it sound like it’s nobody’s fault. And glitches don’t stop all banking transactions for a number of days, that’s a top-to-bottom fuck up – or bug, take your pick.
And for that matter, if legal restrictions prevent parties from being identified, it’s “mustn’t be named”, not can’t.
Hahaha, what a classic:
Microsoft account (previously Microsoft Wallet, Microsoft Passport, .NET Passport, Microsoft Passport Network, and most recently Windows Live ID) is a single sign-on web service developed and provided by Microsoft that allows users to log into many websites using one account.
So over the years it’s had 6 names!
Nice work, Microsoft.
While editing a WordPress post the other day I clicked on Add Media before I had saved or published the draft.
When I tried to upload the image I received the error WP couldn’t write to the disc. Odd. I then returned to editing and went to save a draft before I investigated what was going. Then I got the error that I was unable to save the past as the post did not exist. I returned to the the Dashboard and there were no posts or pages, only a few categories and comments.
I tried to look at the site’s home page but it returned the error the no content could be found in that category. All my posts were gone and no media was listed in the media library when I logged in again. The admin section worked fine, the page template displayed but there was no content for the pages.
The problem was a corrupt database. To solve the problem of WordPress content that has disappeared just run Repair on your tables using PHPMyAdmin and your site will come back to life.
I’ve long been a fan of TV idents, and I used to love seeing the late-80s BBC1 globe animation, when it occasionally popped-up on television here. As well as the Alas Smith and Jones spoof version.
Here are a couple of fascinating articles on how it was generated: by a standalone computer, which animated the 12 second rotation, at the PAL standard of 25 frames per second.
(Update: Found a better video)