Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws

Search results

  1. cr0ft

    Commercial Boiler Install Minimum Efficiencies

    Hi all, my employer took on a new build property which was built for them last year. There are 4x 480KW Ideal condensing boilers installed to serve a district heating network serving approx. 560 student apartments. Due to a lack of decent control, these boilers are achieving a seasonal...
  2. cr0ft

    BMS Controllable Commercial Boiler with High Modulation Ratio

    Hi all, hope everyone is keeping well. I was wondering if anyone can help me work out the best boiler to cover this: - 1.) Modulation ratio of 9:1 or higher. 2.) BMS controlled modulation via 0-10v signal. 3.) BMS feedback re boiler modulation via 0-10v signal. 4.) A reliable boiler too...
  3. cr0ft

    Control of AHU Pre-Heat Coil

    Hi all, I've got 2x AHUs where I work with pre-heat coils after the filter on the supply ducting. These are heated using the boiler CT circuit. On both of these AHUs the method of control of heat to the coil is a 3 port mixing/diverting valve with the central port blanked off. There doesn't...
  4. cr0ft

    Spillage on inside of case (Worcester Greenstar 24i System, 2001)

    Went to this boiler today to service for the first time and found black spillage marks all over the inside of the outer case (mostly inside the airbox seal area but not all, some are clearly visible outside the seal). Noticed there is a case screw missing on bottom left so am going to replace...
  5. cr0ft

    Commercial FGA

    Hi all, Starting to do some commercial boiler servicing at work. For direct and indirect boilers/water heaters including domestic what's the best FGA to look at??
  6. cr0ft

    Best Way To Unstuck TRVs

    So as I'm going to be doing over a hundred of these next week, I was wondering what you guys think is the best way to do this. Not looking for a short term fix, really after what works well longer term. Replacing them all isn't really an option that's desirable if it can be avoided as it's on...
  7. cr0ft

    Water consumption for small hospital

    40 ish in patients, circa 100 staff in from 9-5. Skeleton nursing staff overnight just to keep things running. 6000L of cold and hot used from 11:00-16:30 yesterday. Another 6000L used from 16:30-03:00 this morning when the tanks ran dry!! I closed off bathrooms at 16:30 yesterday so is it...
  8. cr0ft

    Loctite 55

    Is this stuff rubbish or am I just unlucky? Applied it to a 2" BSP joint as per the instructions. Each time it kept pulling out or jamming up the thread. Tired 4 times in total before opting for PTFE instead. Job done..
  9. cr0ft

    Brazing Copper to Brass Flanges

    Hi again. Another few obvious questions for those who know the answers I'm sure :) 1.) Is there a maximum pipe diameter where fittings can be soldered before it stops working? 2.) For brazing as opposed to soldering, what filler would you use to join copper to brass? Also what flux do you...
  10. cr0ft

    Honeywell 832.3 Timing Diagram

    hi all, I remember from my commercial course that you can use the timing diagram to work out what component his causing the problem when the safety controller locks out. https://www.anglonordic.co.uk/files/3101000%20TF%20830.3%20Control%20Box.pdf How do I convert this timing diagram into...
  11. cr0ft

    Thermal Balancing Valves - Where to Place Them?

    Hi all, Where should these be placed on a commercial hot water system? As close as possible to the end of the return leg closest to the outlet? Which is the correct way to do it on a commercial installation, option 1 or option 2 in the link? Please explain why so I can understand...
  12. cr0ft

    Multi-Skilled Tradesperson Job Vacancy - Lincoln

    Hi all, I'm posting this here as opposed to in the main job search forums as the job hasn't been officially published yet. Basically the NHS Trust I work for are about to recruit a Multi-Skilled Craftsperson. Will need to be qualified in plumbing plus one other trade such as electrical/air...
  13. cr0ft

    Temperature problems with large commercial hot water system

    Hi all. As most of you will know I've gone back on the cards now and am now fault-finding one of our commercial hot water systems in a 5,800sq.m building. It's a large building on a hospital site. The hot water system is an old system! Heating is run from a steam feed from the main hospital...
  14. cr0ft

    CT and VT Secondary Circuits

    Hi all, So as most of you know I'm in my new job and trying to get my head around our commercial heating systems. Unfortunately, there is no one there to show me round each system or it's quirks :( Most of our buildings have no schematics for the plumbing either :( Q1 - My understanding of...
  15. cr0ft

    Started on the tools at my new job today!

    Just when you think you are getting on top of the learning, you go and get a job maintaining commercial properties! Expect lots of photos of stuff being uploaded in the next few days and me asking lots of questions to you commercial types about why things are plumbed how they are and what...
  16. cr0ft

    New Tool List - on Ebay tonight at 7pm.

    I'm too lazy to list all the auction URLs so I will list the tools that are going to be on there by 7pm. To find them click this link to view all of my auctions and go to the ones that you're interested in. I suspect there will be some real bargains! Most are collection only but I'm happy to...
  17. cr0ft

    £11k of plumbing and electrical stock for £3,200? 30m to bid.

    As it says: - Plumbing & Electrical Stock Wholesale Copper Pipe & Fittings Sockets Job Lot | eBay £11k inc. VAT purchase price, can be sold for 30% more than that to your customers, at least that's the markup I've been selling it at for years. Firesale of all my business' plumbing and...
  18. cr0ft

    Tools going on Ebay - Sneak Preview :)

    So the first lot of my tools are going on Ebay. Auction starts on Thursday at 7pm and will run till Sunday 18th at 7pm. These are the auction links for the tools detailed below. They won't come active until Thursday at 7pm, just wanted you all to know about them as there's been some interest...
  19. cr0ft

    Help - Best heating control

    Hi all, Swapping a boiler and moving it today and tomorrow and after some advice on the best controls to fit. Here's the constraints:- Existing room thermostat in the downstairs hallway will have to be replaced with a wireless one It's a Y-plan system and I need to fit a new two channel...
  20. cr0ft

    First lot of tools up for sale

    All in good working order unless defects stated. The Hilti TE7-C is a 230v corded tool. Price for this would be £150 based on a new price of £294. If you want a Hilti cordless drill (amazing by the way) we have 3x Hilti SFH 22-A for sale. Each one comes boxed with 2x batteries with plenty of...

We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.

Featured Content

Sponsors

Electric Underfloor Heating The Wetroom Store Heating 2 Go Electrical Goods - Electrical Tools - Brand Names Green Electrical Goods
Back
Top