VRV-Q – A direct Replacement

Have a VRV System using R22 gas and nearing it’s end? As many existing VRV systems (The original system of it’s type established in 1982) will be nearing the end of their life cycle – either due to age or prematurely as a result of the HCFC (R22) refrigerant phase-out.

Daikin’s VRVQ has been introduced to reduce the cost and disruption of replacing an existing older VRV system, the latest innovation in the extensive Daikin VRV range. Historically it has not been possible to replace R22 systems without also replacing all the interconnecting pipework due to high risk of damaging/contamination and pipework often follows complex routes and is a semi-permanent fixture and therefore difficult and very costly to remove or replace. VRVQ enables existing pipework and some types of indoor fan coil units to be re-used, this is subject to site survey findings.

This is a very cost effective replacement for building already using older VRV Systems. For product line-up range, visit Daikin HK website or and download VRV-Q brochure. PCV1030 (VRV III-Q)

Maldives Game Fishing Challenge 2011

The Maldives is renowned as a premier destination for tranquil, naturally breathtaking, picture perfect vacations. However with 99.9% of the country as water, the Maldives is an exceptional water sports location with diving, surfing & sailing already widely practiced and played.

What is less promoted is game fishing; and with the atolls and Indian Ocean surrounding the country teeming with excellent game fish including Marlin, Wahoo, Tuna and Sailfish; we welcome you to be a part of this inaugural event and reveal the secret of game fishing in the Maldives to the world.

The Maldives Game Fishing Association(MGFA) will host the Maldives Game Fishing Challenge, in association with Dhiraagu , from 9 to 12 November 2011 (more…)

Maldives Preparing to Phase Out Refrigerant Gas Hydrochloroflorocarbons (HCFCs)

EPA.GOV.MV: Maldives, being a party to the Montreal Protocol on Substance that Deplete the Ozone Layer is obligated to phase out Ozone Depleting Substances (ODS) such as CFCs, Methyl Bromide, Halons and HCFCs. We are proud to note that Maldives has been successful in meeting our targets earlier than recommended. Import of CFCs have been banned since January 2008. Other ODS including Methyl Bromide, Bromochloromethane, Halons and Methylchloroform have also been banned. Import of equipment dependant on CFC gas and vehicles older than 5 years have also been banned since 1 January 2004. And all imports of Refrigerant gases are monitored through a licensing system coordinated by the Environment Research Centre and the Maldives Customs Service.

The next step for us in achieving the Montreal Protocol goals is to phase out the HCFCs. HCFC phase out targets approved by the Montreal Protocol is as follows:

For Article 5 Parties (including Maldives) to have completed the accelerated phase-out of production and consumption in 2030, on the basis of the following reduction steps:

1. Freeze the consumption in 2013
2. Reduction of consumption by 10 per cent in 2015;
3. Reduction of consumption by 35 per cent in 2020;
4. Reduction of consumption by 67.5 per cent by 2025;
5. While allowing for servicing an annual average of 2.5per cent during the period 2030–2040;

To achieve these targets the National Ozone Unit of Maldives has started a project funded by United Nations Environment Program, “Development of a HCFC Phase-out Management Plan (HPMP), was approved and signed at the end of 2008 and the project activities started in January 2009. This project aims to prepare a management plan to successfully phase-out HCFCs according to the above mentioned phase-out schedules. The HPMP will describe the overall strategy that will be followed to achieve the targets to meet the complete phase out of HCFCs. The strategy will be developed on the basis of a staged approach with the stage one constituting the immediate interventions that are needed to meet the freeze on HCFC in 2013 and the 10 per cent reduction in 2015.

Read more:
1. The Freon you’re used to is changing, what you should know…
2. Future Refrigerant Changes

Review: Livescribe smartpen is iPad’s opposite

This product image provided by Livescribe, shows three views of the Livescribe Echo smartpen. (AP Photo/Livescribe)

(AP) NEW YORK — Here’s a consumer electronics riddle: What’s the opposite of the iPad?

Answer: the Livescribe Echo “smartpen.” It’s as if Livescribe and Apple both looked at the old pen-and-pad combination, but completely disagreed on how to take it into the digital age.

Apple put all the smarts into the pad. Livescribe put all the smarts in the pen.

I don’t have to tell you which is the better idea — iPad sales have helped make Apple Inc. the most valuable company in the world. Livescribe is tiny.

But the Echo is interesting enough to be worth a look, particularly with some recent software updates. It starts at $100, making it more affordable than the iPad, and it could be a good tool for a student.

The Echo is a fat, cigar-like pen with a small screen near the top. It works as a regular ball-point pen, leaving ink marks on paper. But its reason for being is that it records what you write, and its microphone records what you’re hearing at the same time.

It matches up the audio recording with the recorded writing, so that if you tap the pen on something you’ve already written, it will play back the audio recording, either through its built-in speaker or through headphones. This is useful in almost any situation where you want to record something for future reference, be it a lecture or an interview.

Certainly, you can do the same thing on the iPad, with apps that match up audio and writing. But writing on the iPad isn’t easy. Styluses are awkward, and typing on the screen is not much better. You can use a PC instead — Microsoft’s excellent OneNote application records audio and typing — but you need to sit down to use a PC, and their microphones can be iffy.

So, the Echo is still the best tool for note-taking, particularly when you’re standing or when hammering away at a PC would seem rude, like in a meeting. I used Livescribe’s earlier model, the Pulse, quite a bit in my reporting job, and found the ability to tap back into a conversation to get a verbatim quote useful on several occasions. (In the old days, reporters used to learn shorthand. Today, we scribble furiously.)

The Echo improves on the Pulse by replacing proprietary audio and data ports with a standard headphone and micro-USB port. The USB port also charges the pen.

On the software side, the pen now “talks” better to other programs. For instance, you can mark pages and have them sent in an email as soon as you connect your pen to your computer. You can also send them to Google Docs, for sharing, or to OneNote, to keep your notes tidy. You can also post them on Facebook, perhaps for sharing lecture notes with friends. The writing looks good on screen — much better than it would look if you simply wrote on a pad, then scanned or photographed it.

There’s also an “app store” where you can buy little programs to download to the pen. One lets you measure the distance between two points on the pad, or compute the area of an enclosed space.

The coolest app, by far, is a version of the classic text-based adventure game “Zork.” It’s a pretty magical experience to write commands like “go north” and see replies like “You are in a clearing …” scroll by on the pen’s screen.

Another app lets the pen control your PC’s cursor when connected by cable. Hover over the pad, and the cursor moves. Press down, and you register a click, or draw on the screen. It’s equivalent to Wacom’s PC input tablets, but it doesn’t register different degrees of pressure, so it’s unlikely to be useful to artists.

Speaking of pads, you do need a special pad to use the Echo. It works only on paper that’s preprinted with a pattern of dots that looks like a faint speckling of the page. The dots are picked up by a small camera in the pen and allow it to figure out where it is on a page. You can buy a four-pack of additional notebooks from the site for $19.95 (one small notebook comes with the pen). It’s also possible to print your own dotted paper if you have a color laser printer.

The biggest drawback to the pen is its tiny screen. It’s not that hard to control this “pen computer” — you write things, and it responds. But it has a really hard time communicating anything back, since its screen shows less than 25 characters at time, in monochrome. It can also talk to you through its little speaker, but that’s not a medium that can convey the complexity of a Web page. Even a phone screen can communicate a lot more.

The other big shortcoming is that the pen needs to be physically connected to your computer to send email, upload notes or control your cursor. A short-range wireless link like Bluetooth would be neat, but might not be fast enough to transfer notes. Wi-Fi would be better, but getting a pen to work well with Wi-Fi would be a big challenge, both in terms of the user interface and battery life.

I like the Livescribe pens and find them useful. But as computers, they are a dead end. They’re just not flexible enough to be general-purpose devices, like tablets. An iPad that worked well with pen input would make me drop the Echo. Apple’s competitors already have rudimentary pen-based tablets out, and who knows, maybe the iPad 3 will have some surprises for us.

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Article by: Peter Svensson can be reached at http://twitter.com/petersvensson

Commissioning Daikin VRV systems

Variable Refrigerant Flow (VRF) systems have commissioning requirements that are very unique to these highly specialized systems. An example are Daikin’s Variable Refrigerant Volume (VRV) systems.

The degree of sophistication of these systems demands that the commissioning team either has prior experience or attends the company’s specialized training classes. Daikin’s courses are held in a variety of locations and are suitable for a diverse audience, including commissioning authorities. Most courses are one to two days in length.

Commissioning considerations should include knowledge of:

1. Strict refrigerant piping rules
2. Strict refrigerant soldering and connection standards
3. Triple evacuation is a MUST, including verification by the CA
4. Strict and atypical refrigerant charging methods
5. Branch Selector Boxes housing electronic expansion valves for groups of FCUs
6. 2000 step electronic expansion valves
7. Refrigerant piping runs as long as 1000′ to 3000′+ allowed
8. No suction traps
9. Specialized installation and charging tools (flare kits, gauges, etc.)
10. Inverter controlled compressors
11. FCUs are grouped – ~ 1 to 6 FCUs per outdoor unit
12. On some systems, heating and cooling can operate at the same time
13. Atypical control wiring standards: 18 AWG, stranded, 1 pair, non-shielded, daisy chained
14. Automatic addressing of the controllers

It is highly recommended to include paying for factory field inspections during installation and start-up – called “Assisted Commissioning” – particularly if the installing team is inexperienced.

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Daikin, a Japanese firm founded in 1924, is the world’s second largest manufacturer of air conditioning equipment; outside of North America, they are the largest in the world. In the US, Daikin is number two behind Carrier and reportedly gaining ground quickly.

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