Stainless Steel Unvented Cylinders

Stainless Steel Unvented Cylinders

1992 Tornado 1 1996 Tornado Elite 1999 Tornado 2 2002 Tornado and Tempest Stainless Steel Modern Day Requirements More people are finding that today s requirements for plentiful hot water can only be met by storage systems. The ultimate provider of high pressure hot water is a Tornado or Tempest unvented cylinder. We made our first unvented cylinder in 1992. Our extensive manufacturing knowledge enabled us to produce a unit from heavy gauge Grade One Copper. We updated the design on two occasions, incorporating features to enable easier installation. Responding to rapidly changing market expectations we undertook, in 2001, detailed research and consultation with developers, installers and specifiers alike. The result was investment in new manufacturing facilities and in 2002 we launched our Tornado and Tempest Stainless models. All of our domestic unvented cylinders are now formed from 2304 Duplex Stainless Steel. Tornado and Tempest units are finished using a wipe-clean, white coated steel case. Continuing our philosophy of using only the finest materials, the heat loss from the cylinders is minimal, making them extremely economical to run. We are so confident of the construction that we offer a lifetime guarantee* on our Stainless Steel Tornado and Tempest models. As we are continually responding to market requirements we have extended our Stainless Steel range to include cylinders for multiple energy sources including solar energy and horizontal models for use where space is at a premium. *Contact Telford Copper Cylinders for guarantee details. 1

Updated specification Greater coil efficiency Solar Energy versions Twin Coil versions Horizontal versions 2007 Why Choose Telford? Because we use Duplex 2304 Until recently, Duplex 2304 was reserved only for use in chemical plants and refineries. Due to its corrosion resistant properties it is a far superior grade of Stainless Steel than that used by the majority of other cylinder manufacturers. The reason we use Duplex 2304 for our unvented cylinders is to ensure total peace of mind for the end user. Not only this but when the cylinder is manufactured it goes through a special process to ensure the Stainless is working at maximum potential. An added feature of stainless cylinders is that an anode is not required. This benefits the customer as the changing of an anode is a time consuming and costly exercise and failure to replace the anode will lead to the mild steel cylinder corroding prematurely. Duplex steel is recyclable. As much as 90% of post service steel is converted into prime stainless steel product. Whichever way you look at it Duplex 2304 is superior. As a result the cylinder becomes highly resistant to all forms of corrosion, including pitting and crevice corrosion. 2

Easy to install Easy to commission Step by Step Installation Guide Stylish Appearance Long life Stainless Steel Secondary return standard on 200-300 litre models. Strength in Numbers Manufactured From 2304 Duplex Stainless Steel Developed specifically for its corrosion resisting properties. Pressure Tested to 15 Bar Total peace of mind. P valve operates at 6 Bar Primary safety control. 3 Bar working pressure Able to meet the toughest demands. Domestic and Primary Connections High flow rates and quick reheat times. Up to 55 Litres/Minute Flow Rate Capable of operating the most demanding showers. T&P relief operates at 7 Bar / 90 o C Secondary pressure and temperature safety control. 50 Variants to choose from Choose from vertical, direct, indirect, solar and horizontal units that best suit to your requirements. 3

Shown with optional Tectite push fittings. Installation Cold water supply Telford Stainless unvented cylinders are capable of delivering up to 55 litres of hot water per minute given an adequate supply. The minimum recommended supply is 20 litres per minute at 1.5 bar. What boiler should I use? To ensure peak performance and efficiency the cylinder should ideally be connected to an oil-fired or gas condensing boiler. The primary circuit must be pumped and can be open vented or sealed. Energy requirement (BTU/KWH) will vary according to cylinder volume. Location Our stainless cylinders can be sited virtually anywhere in the home, but consideration must be given to service clearances and the weight of the cylinder when filled. Connection diameters Domestic side Cold water inlet and hot water draw-off 3 /4 female Primary side Coil flow and return - 3 /4 female Safety valves Temperature and pressure relief - Inlet group 15mm x 15mm pressure relief - 15mm Tundish 15mm x compression. Secondary return Standard on cylinders 200L and above. 4

Integrated expansion vessel, (Tornado only) HCFC + CFC free foam insulation Wipe clean Mild Steel outer case Stainless Steel 3 /4 female connections High grade Incoloy element Material Specifications 5 There s Stainless Steel and there s Stainless Steel! The properties of any stainless grade are defined not only by its alloy content but also by the way it is produced. Austentic stainless steel 316L is often used in water tanks. This grade offers limited strength properties, so needs to be thick enough to handle the internal pressure. DUPLEX 2304 Our Duplex 2304 Tempest and Tornado Stainless Cylinders offer optimised composition alloy elements that have created a stronger and corrosion resistant product that out performs not only other stainless steels but other solutions too. Cylinder Body & Ends Duplex 2304 Stainless Steel. Domed ends are precision manufactured and welded to the body, producing a strong and reliable vessel. Outer Casing White steel with laminated coated finish and corrosion resistant base. Wipe clean surface. Thermal Insulation CFC and HCFC free rigid polyurethane foam. Primary Coil continuously wound rapid recovery coil, suitable for pumped primary systems only. Immersion Heaters Supplied with all models (two on direct). Low noise high grade Incoloy elements and safety cut outs. Titanium immersion heaters are available for an additional cost.

Performance Heat-up and re-heat times assume a cold water temperature of 15 0 C If using a twin coil variant, where the second coil is linked to a solar energy recovery application, the recovery times listed will improve significantly. Depending on the energy input, the recovery times could be halved. INDIRECT RE-HEAT PERFORMANCE 90 125 150 170 200 250 300 Time to Re-Heat after 70% Draw-Off 18 25 26 25 24 25 29 Time to Re-Heat from Cold to 65 0 C 26 36 37 36 33 35 40 DIRECT RE-HEAT PERFORMANCE 90 125 150 170 200 250 300 Time to Re-Heat after 70% Draw-Off 27 37 45 51 63 75 136 Time to Re-Heat from Cold to 65 0 C 52 72 86 98 108 144 202 6

TC UNVENTED 23/4/08 2:48 PM Page 8 Picture courtesy of Walton Homes Which Cylinder to Choose? Domestic selection guide DOMESTIC SELECTION GUIDE BEDROOMS HOT WATER DEMAND UPTO 2 BEDS 1 SHOWER 1 BATH, 1 SHOWER 1 BATH, 1 SHOWER 1 BATH, 1 SHOWER 2 BATHS, 1 SHOWER 2 BATHS, 1 SHOWER 2 BATHS, 2 SHOWERS 3 BATHS UPTO 3 BEDS UPTO 4 BEDS UPTO 6 BEDS INDIRECT DIRECT 90 LTR 125 LTR 150 LTR 170 LTR 200 LTR 250 LTR 300 LTR 300 LTR 125 LTR 150 LTR 170 LTR 200 LTR 250 LTR 300 LTR 300 LTR 300 LTR The above chart is for guidance only. Linking Tornado or Tempest together. There are occasions when one cylinder is just not sufficient to cope with demands placed upon it. In these circumstances it is possible to link two or more units together. If this sort of installation is required, please call our Technical Assistance line on 01952 257963. 7

Variants Tornado Easy-fit Twin Coil Stainless Vented Since perfecting the product, several developers have approached Telford Cylinders and asked if we would pre-plumb our successful Tornado Cylinder. Using market leading components we are able to fabricate the Tornado to any configuration that may be required, ie S & Y-Plan. This saves valuable time on site for both the plumbing and electrical contractor and ensures a uniform installation in each plot. Environmental issues are currently at the forefront of peoples thoughts. Developers are now looking at solar energy as a complement to gas or oil powered boilers. Solar not only benefits the environment by reducing the amount of natural resources we consume, but also makes the heating of a building far more efficient and helps to lower utility bills. Our twin coil stainless cylinder is available in all sizes throughout the Tempest range and includes all necessary safety controls. In areas where water quality is especially aggressive we have developed a vented cylinder from stainless steel. Because of the superior anti-corrosive characteristics of Duplex stainless steel the benefits over a standard copper cylinder are significant. The unit is available white cased or foam lagged. 8

Tornado Stainless 1/2 F TPR Valve Hot Water Draw-off Secondary Return Stat Pocket 1 3/4 IH Boss F E D C B A A B C D E Cold Feed Cold Feed Technical Specifications - Tornado CAPACITY (LTR) HEIGHT DIAMETER A B C D E F 90 1220 510 150 180 325 450-555 125 1420 510 150 180 350 450-760 150 1540 510 150 180 380 480-885 170 1780 510 150 180 430 580-1030 200 1600 554 150 180 430 580 820 995 250 1920 554 150 180 510 800 980 1155 300 2080 554 150 180 510 800 1100 1305 CAPACITY (LTR) HEIGHT DIAMETER A B C D E 90 1220 510 150 180 400-555 125 1420 510 150 180 400-760 150 1540 510 150 180 400-885 170 1780 510 150 180 400-1030 200 1600 554 150 180 400 820 995 250 1920 554 150 180 400 980 1155 300 2080 554 150 180 400 1100 1305 Heights are for use as a guideline only 9

Tempest Stainless 1/2 F TPR Valve Hot Water Draw-off Secondary Return Stat Pocket 1 3/4 IH Boss F E D C B A A B C D E Cold Feed Cold Feed Technical Specifications - Tempest CAPACITY (LTR) HEIGHT DIAMETER A B C D E F 90 750 510 150 180 325 450-555 125 935 510 150 180 350 450-760 150 1060 510 150 180 380 480-885 170 1200 510 150 180 430 580-1030 200 1120 554 150 180 430 580 820 995 250 1330 554 150 180 510 800 980 1155 300 1650 554 150 180 510 800 1100 1305 CAPACITY (LTR) HEIGHT DIAMETER A B C D E 90 750 510 150 180 400-555 125 935 510 150 180 400-760 150 1060 510 150 180 400-885 170 1200 510 150 180 400-1030 200 1120 554 150 180 400 820 995 250 1330 554 150 180 400 980 1155 300 1650 554 150 180 400 1100 1305 Heights are for use as a guideline only 10

Telford Copper Cylinders Limited Furrows Business Park Haybridge Road Telford TF1 2FE Telephone: 01952 257961 Fax: 01952 253452 www.telford-group.com Merchant stockist. TO H MAXIST RE March 2008