2 Products that perform | Service that delivers | People that care Hamworthy Heating is a British commercial heating manufacturer. Our energy efficient commercial heating, hot water, and renewable energy products are used in buildings across the UK. Trusted expertise since 1914.
01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com 3 76 90 96 Spares & service Lifetime support for your product. Schematics & system design Some useful yardsticks and design guidance. Additional products All the extras for your plant room and information on whole life costs. 04 06 08 The Hamworthy difference It’s not just our products that set us apart, it’s our people. Product selector Easily compare and select the product to fit your project. Heat pumps Discover our new range of air source heat pumps. 12 16 52 Load matching Essential reading on load matching and modulation. Boilers Read up on what we’re best known for; commercial boilers. Water heaters Get details of the 40 products in our range. Welcome to your Hamworthy range guide With commercial heating and hot water knowledge on tap, don’t hesitate to get in touch with your questions. Your local contact is listed on the back cover, or speak to one of the team in head office: Sales team: 01202 662552 Service team: 01202 662555 Spares team: 01202 662525 Technical support: 01202 662505 Fax: 01202 662550 You can speak to us online via our web chat service or visit our technical library to download full product information including CAD files, BIM objects and data tables. hamworthy-heating.com sales@hamworthy-heating.com Got a question?
4 Products that perform | Service that delivers | People that care The Hamworthy Difference British engineering excellence Here in the UK, we design, test, manufacture and source marketleading products. We know our products inside out, back to front and from start to finish. You can trust that we know what we’re talking about. People first It’s not just our products that set us apart, it’s our people. Truly excellent customer service, great technical knowledge and being easy to deal with. That’s the Hamworthy difference. Lifetime support From design and specification, through to commissioning, training and maintenance, as well as commitment to spares availability. We support businesses through their lifetime of commercial heating and hot water needs. Everyone’s got history, we’ve got heritage Our roots date back to 1914 when two brothers in Poole set up Hamworthy Engineering. Decades of experience go in to every nut, screw and bolt, and every phone call, text and email. Since 2008, we’ve been part of Groupe Atlantic, a company with a similar ethos to us. Groupe Atlantic was founded in 1968 by two engineers and is now one of the market leaders in the European heating and hot water industry. We’re part of their growing UK, ROI and North America Divisions.
5 01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com We’re accredited with CIBSE to deliver approved Continuing Professional Development (CPD) courses. It’s our opportunity to share our knowledge with you. What have previous attendees said about our courses? “They’re time well spent.” “Very informative CPD and not purely sales based.” “Very informative and actually the best CPD event I have attended.” For a full list of courses available see page 102. Knowledge is key
6 Products that perform | Service that delivers | People that care Heating When it comes to commercial heating there isn’t a ‘one size fits all’ solution. We have over 90 boilers and a range of heat pumps for you to choose from. Use the chart below to select the product that best fits your requirements and building’s heat load. Heat Pump Gas fired pre-mix boiler Power flame boiler Condensing / Non-condensing Air Source Condensing Condensing Condensing Condensing Condensing Condensing Non- condensing Non- condensing Wall mounted or floor standing Floor Wall Floor Floor Floor Floor Floor Floor Floor Minimum model output @50/30°C (kW) 14.6 43 97 70 98 127 530 (@ 80/60°C) 530 (@ 80/60°C) 440 (@ 80/60°C) Maximum model output @50/30°C (kW) 66.8 146 762 180 1,047 637 3,000 (@ 80/60°C) 10,000 (@ 80/60°C) 580 (@ 80/60°C) No of models 7 7 15 5 18 10 12 19 3 Max water pressure (bar) 4 10 6 6 6 6 6 6 SS OV † SS SS OV SS OV SS SS SS OV SS OV SS OV RS OF † RS OF OF OF OF RS OF OF OF OF Flue options B23 • • • • • • • • C13 • • C33 • • C53 • • Fuel Nat Gas • • • • • • • • LPG • • # • • • Oil/ Biofuel • • • Dual fuel • • • Electric • Heat exchanger material Stainless steel Stainless steel Cast iron Aluminium Stainless steel Steel Steel Steel Turndown modulation ratio (max) 5:1 15:1 3:1 15:1 5:1 2.5:1 4:1 3:1 Tyneham Stratton mk2 Wessex ModuMax mk3 Purewell Variheat mk2 Upton Varmax Melbury C Melbury HE Ensbury Pg 10 Pg 20 Pg 22 Pg 28 Pg 30 Pg 34 Pg 38 Pg 42 Pg 46 †Key: SS = Sealed system OV = Open vented system RS = Room sealed flue OF = Open flue # LPG/Air for Channel Islands. Product selector
7 01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com Hot water Our hot water range is pretty big too. With more than 40 products you’ll be spoilt for choice. Use the chart below to select the hot water product that best matches your hot water demand. Direct fired water heater Indirect calorifier Storage tank Condensing / Non-condensing Condensing Condensing Condensing NonCondensing Condensing Single / Twin coil Single / Twin coil Storage Storage Continuous output @44°C ∆T (l/h) Min 600 820 228 970 710 501 390 N/A N/A Max 2400 1200 614 1800 910 1635 2106 N/A N/A Storage capacity (l) Min 227 388 162 291 184 157 298 300 301 Max 504 388 384 347 184 972 958 965 981 Recovery time @44°C ∆T (min) Min 13 11 17 11 13 17 16 N/A N/A Max 37 16 41 18 17 36 47 N/A N/A No of models 7 2 9 3 2 7 9 5 4 Output power kW (max) Min 30.5 41.9 11.7 49.1 35.9 29.1 20 N/A N/A Max 119.4 59.3 31.3 84.4 46.2 96.8 67.5 N/A N/A Unvented (UV) Open Vented (OV) UV OV UV OV UV OV UV OV UV OV UV OV UV OV UV OV UV OV Flue options B23 • • • • C13 • • • • C33 • • • • C53 • • • • Fuel Nat Gas • • • • • LPG • • • • Solar # • # # # Vessel material Glass lined Glass lined Glass lined Glass lined Stainless steel Glass lined Stainless steel Stainless steel Glass lined Dorchester DR-FC Evo Dorchester DR-TC Dorchester DR-CC Dorchester DR-LL Dorchester DR-XP Powerstock calorifier Halstock calorifier Halstock storage tank Powerstock storage tank Pg 56 Pg 60 Pg 62 Pg 64 Pg 66 Pg 68 Pg 70 Pg 72 Pg 74 Product selector
Products that perform | Service that delivers | People that care 8 Introducing Hamworthy Heat Pumps To decarbonise our heat and drive towards net zero we need to diversify the products, fuels, and applications. From the strategies and papers presented by Government we’re seeing 3 key routes: Hydrogen Electrification Heat Networks The Tyneham air source heat pump range
01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com 9 Why heat pumps and electrification? Heat pumps are a highly efficient, eco-friendly way of producing heating and hot water. By taking “free energy” from the air via a refrigerant cycle they generate heat without releasing any carbon emissions. 01 02 03 04 Water Out Water In Useful Heat Compressor Expansion Valve Ambient Air Condenser Heat Exchanger Evaporator 1 3 2 4 Heating & Hot Water How does a heat pump work? CAPTURE The fan passes ambient air over extremely cold liquid refrigerant. The refrigerant captures the heat from the ambient air and becomes a warm vapour. COMPRESS The warm refrigerant vapour passes through a compressor which produces hot refrigerant and usable heat. EXCHANGE The heat in the hot refrigerant is then transferred to the heating and hot water cylinder through a heat exchanger. EXPAND Once the heat has been transferred to the house, the refrigerant passes through an expansion valve which reduces its temperature, making it really cold again and enabling it to capture heat from the ambient air, continuing the cycle.
10 HEAT PUMPS Tyneham heat pump Key benefits: Monobloc air source heat pump Single unit with the refrigeration cycle contained within the outdoor unit Inverter controlled compressor to accurately match the heat demand Low global warming potential due to the use of R32 refrigerant Highly efficient with co-efficiency of performance (COP) rating up to 4.85 Light and compact unit for ease of installation and delivery Suited to larger installations - cascade systems to achieve higher output 2-year warranty (extended to 5 years if commissioned by Hamworthy)* Back up and long-term support from our team of experienced engineers across the UK Combine with Hamworthy modular boilers for a hybrid heating system Options: Flexible hoses Anti-vibration rubber feet Control unit (sold seperately)* Anti-corrosion coating for installations close to the sea (special order) 7 Models 14-70 kW Output 68 as low as dB(A) 4.85 COP up to A+++ ErP rating R32 Refrigerant *Optional control units are available for cascade and additional heating circuits, and where no BMS is present.
11 01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com HEAT PUMPS Technical Specification Unit 14kW 1PH 14kW 3PH 18kW 26kW 32kW 50kW 70kW Heat Pump Space Heating [35°C] ErP rating A+++ A+++ A+++ A++ A++ A+ A+ SCOP 4.48 4.48 4.46 4.55 4.81 4.16 3.94 Heat Pump Space Heating [55°C] ErP rating A++ A++ A++ A+ A+ A+ A+ SCOP 3.31 3.31 3.36 3.14 3.14 3.08 3.04 Heating (A7/W35) Capacity (kW) 14.1 14.1 17.9 26 32.1 50.2 66.8 Power Input (kW) 2.91 2.91 4.07 6.44 7.84 12.2 16.3 COP*** 4.85 4.85 4.4 4.04 4.09 4.11 4.1 Air Temperature Range Min/Max (°C) (-20 +40) (-20 +40) (-20 +40) (-20 +40) (-20 +40) (-20 +40) (-20 +40) Sound Data Outdoor Unit Power Level dB(A)** 68 68 68 74 76 82 83 Primary Flow Rate (l/Sec) 0.64 0.65 0.83 1 1.6 1.95 3.19 Pipework Connection Sizes Heating Flow (“) 1 1 1 1 1 1/4 1 1/2 1 1/2 Heating Return (“) 1 1 1 1 1 1/4 1 1/2 1 1/2 Dimensions Outdoor Unit Width (mm) 1044 1044 1044 1600 1600 1920 1920 Depth (mm) 455 455 455 680 680 1110 1110 Height (mm) 1409 1409 1409 1315 1315 1920 1920 Weight kg 121 136 141 240 255 535 595 Electrical Data Electrical Supply (v) 240 415 415 415 415 415 415 Phase Single Three Three Three Three Three Three Max Running Current (Amp) 29.2 9.7 12.2 23.3 27.1 54 70 Fuse Rating (Amp) 32 25 25 25 32 63 100 Refrigerant Charge R32 (kg) 3.2 3.2 3.5 4.3 5.1 8.5 12 Technical data OUT IN DS/OUT (1” G) DS/IN (1” G) 1754 1920 470 198.5 296 1920 1635 1110 Ø48.3 Ø48.3 E: Electrical Connection Dimensions 14-18kW models 26-32kW models 50-70kW models Note: All dimensions in mm unless otherwise stated. 1409 106 113.1 178.6 1044 156 634 155 404 448 455 E: Electrical Connection 1409 106 113.1 178.6 1044 156 634 155 404 48 55 E: Electri al Connection 155 404 448 455 1409 106 113.1 178.6 1044 156 634 155 404 448 455 E: Electrical Connection 1600 1315 55 55 788 851.4 36.5 58 85 680 E: Electrical Connection 55 8 . OUT IN
12 Products that perform | Service that delivers | People that care Commercial boiler systems come in all shapes and sizes. Our experts are here to help you find the right fit. Choose from our range of wall hung and floor standing boilers. You’ll find space saving designs for the most difficult to access plant rooms and outstanding performance levels. Working in partnership, we help you find the best commercial boiler solution for your project. Whether it is a hotel or hospital boiler, a district heating scheme or a cathedral refurbishment, you benefit from our vast experience. Boilers Introduction to boiler range and choice 14 Purewell Variheat mk2 floor standing boiler 28 Load matching and multiple boilers 16 Upton floor standing modular boiler 30 Melbury HE floor standing boiler 42 Stratton mk2 wall hung boiler 20 Varmax floor standing boiler 34 Ensbury floor standing boiler 46 Wessex ModuMax mk3 floor standing modular boiler 22 Melbury C floor standing boiler 38 Arne Eco economiser 50
13 01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com Did you know? Our Wessex ModuMax boiler is ideally suited to heat networks with a 40°C Delta T and an operating temperature of 90°C. Wessex page 22
14 Products that perform | Service that delivers | People that care Introducing our range of commercial boilers Our boilers come in all shapes, sizes and materials. And we’re here to help you find the right fit. Each product is different and has its own unique qualities. You can use this guide to browse through our range of wall hung and floor standing boilers, and read on to find out more about the different types of boilers available. Condensing or non-condensing Condensing boilers use the latent heat from flue gases (condensate) to work in the heating system, rather than being wasted. This improves efficiencies. However, for these boilers to condense, return temperatures from the system need to be less than 55°C, otherwise they will only achieve marginally higher efficiencies than a high efficiency non-condensing boiler. Non-condensing boilers are not able to condense. They offer high efficiencies but will never be able to match the efficiencies possible from condensing boilers. They are often used for replacement projects, as the flues on older atmospheric boiler systems are not able to cope with the condensate produced from a condensing boiler. However, since the introduction of the Energy-Related Products Directive (ErP) all boilers below 400kWmust now be condensing to comply with the efficiency criteria. Floor standing or wall hung On the floor or off the wall, you can decide. Wall hung boilers have many benefits and are sometimes favoured for their convenience of use. In the domestic world nearly all boilers are wall hung due to their size and the space available in a home. They are often smaller than floor standing boilers and easier to handle. They can be installed on an existing wall or, if the wall can’t support the weight of the boiler, floor standing frames can be used. They can be installed side by side in a cascade arrangement and the availability of matching pipe kits can simplify installation. For large heat demands it is not possible to match with a single wall hung boiler – the largest output available from our wall hung boiler range is currently 146kW. Floor standing boilers, however, sit directly on the floor. They were traditionally heavier, but with improvements in boiler design, our Wessex ModuMax mk3 floor standing boiler weighs in at less than 1kg per kW output on the larger models. They too can come with optional pipework kits and can be installed in modular arrangements vertically or horizontally (depending on the boiler). Pre-mix or pressure jet/power flame The majority of new boilers have a pre-mix combustion system. They use a fan to mix fuel and air prior to entering the burner. Whereas a pressure jet boiler, or power flame/forced draught as they are also known, uses a fan to pressurise the combustion air prior to mixing with the fuel at the burner head. Modular or single large output Modular boilers are designed as an alternative to large single boilers and offer an efficient approach to heating requirements, especially when combined with a modern control system. Using sequence control in a modular boiler system, you can optimise boiler operation and closely match the building load. Each module can be a separate boiler sat side by side, or as a vertical arrangement with one module above another like our Upton or Wessex ModuMax boilers. This makes them compact and lightweight, often able to fit through a standard doorway. They are suited to a multitude of projects, but particularly those with space and weight restrictions such as city centres, housing developments, rooftop, and basement plant rooms. Modular boilers provide a flexible and secure approach to heating solutions, with each module providing a percentage of the total system load. In the event of one module failing or for service/ maintenance periods, the other modules are available to provide continuity of heat. Large output boilers may provide all the heat required for a building from a single boiler. These will take longer to heat up and depending on the building’s heat loads can waste energy due to variances in heat demand throughout the day. Larger output boilers may be better suited to projects with consistently high loads or combined technologies with integrated thermal stores, such as district heating schemes. Taking advantage of longer periods at higher loads, fewer large output boilers on suitable projects can simplify installation with less system and controls connections required. Modular boilers You can find out more about the load matching benefits possible using modular boilers on pages 16 to 17. What type of boiler can you choose from? BOILERS
The heart of the boiler - the heat exchanger We care about the material and construction of our heat exchangers as they’re at the heart of every boiler. But why does the material and design make a difference? We’ll take you through the materials and their qualities below. Which boiler should I choose? This really is dependent on you and your project. What type of building is it? What are the heat loads? What are your environmental objectives? And how will you be looking after your equipment for its life? For unbiased advice and guidance on selecting the best matched boiler for your next project request a free site survey or speak to our in-house technical support team. You have the choice and we can provide a solution. Cast iron Cast iron boilers traditionally dominated the market and have stood the test of time. We launched our first atmospheric cast iron boiler in the 60’s. A cast iron heat exchanger offers great corrosion resistance where system water is poorly treated, making it robust and long-lasting. We back this up with a 10-year heat exchanger warranty on our cast iron boiler. They typically have large waterways enabling them to deal with debris often found in the circuits of old heating systems. Cast iron boilers are not usually suitable for condensing operation due to corrosion. However, our Purewell Variheat mk2 boiler has a secondary heat exchanger to allow it to condense, making it the only ErP compliant cast iron commercial condensing boiler in the UK. Steel shell or shell & tube The higher output boilers often have heat exchangers constructed from pre-fabricated steel shell or shell and tube steel. They are not suitable for condensing except when a secondary heat exchanger is used, as with our Melbury C boiler. They use pressure jet burners and a large single piece boiler design which means you must give careful consideration to access and installation. They also require minimum return temperature control to prevent condensing. Our steel shell power flame products include Ansty, Ensbury, Melbury HE and Melbury C boilers. Stainless steel Heat exchangers manufactured in stainless steel are corrosion resistant to both flue gas and system water. They are durable and long lasting - we offer 5 & 10-year warranties on our stainless steel boilers. Stainless steel is available in many grades and the most common for boilers is 316 which has good welding properties. It also has good heat transfer properties similar to cast iron. Boilers using stainless steel heat exchangers are lightweight and tolerant to a wide pH band of water conditions, typically pH7 to pH10. Our Wessex ModuMax mk3, Stratton mk2 and Varmax boilers all feature a stainless steel heat exchanger. Aluminium alloy Aluminium alloy heat exchangers are often used for modern wall hung condensing boilers as they are lightweight and have good heat transfer capability. It is a low cost metal to purchase and can use high precision die casting for highly efficient, compact sectional heat exchanger design. However, measures must be taken to deal with heating system water quality to prevent galvanic attack and prolong life. The pH band for system water must typically be controlled within pH7 to pH8.5. Aluminium heat exchangers are often designed with small waterways to offer fast response to changing system requirements, but water must be kept clean through use of dirt separation to allow flow through these waterways. The expected life of aluminium boilers is not as long as cast iron or stainless steel. Our Upton boilers feature an aluminium alloy heat exchanger. 01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com 15 BOILERS
16 Products that perform | Service that delivers | People that care Load matching How to maximise efficiencies in multiple boiler installations The overall efficiency of a multiple boiler plant depends on how close its total output can be controlled to match the load profile of the building. Therefore it is a really important aspect of product selection. Why match plant output to load? Matching the building’s heat load enables you to deliver the right amount of heat at the right time with little or no wastage. A commercial heating system is designed to match the peak load to heat a building up to full temperature within a short period of time. This requires a large load from the heat source; the boilers. However, most of the time the boilers will be working at much lower loads. The trick is to match both, peak loads and low loads without oversizing the boiler and wasting energy. And to do, this you need a system with a large turndown ratio. 15:1 up to Turndown The example above, with 6 boiler modules, would provide a turndown ratio of 30:1 Sept Aug Oct Nov Dec Jan Feb Mar Apr May Jun July B1 B1 B1 B2 B1 B2 B1 B2 B3 B1 B2 B3 0 20 40 60 80 100 Available Capacity % Month of year Key B1 = Boiler 1 B2 = Boiler 2 B3 = Boiler 3 Building heat load % 20 % 20 % 20 B1 B2 % 20 % 20 % 20 % 20 % 20 B1 B2 B3 % 20 % 20 % 20 % 40 B1 B1 % 20 % 40 % % 30 % 30 B1 B2 30 % % 30 100 % 100 % 100 Turning it down Let’s look at turndown ratios. Turndown ratio refers to the width of the operational range of the boiler, and is defined as the ratio of the maximum capacity to minimum capacity. In a typical modular boiler system each module could have a turndown ratio of 5 to 1. So a vertical stack of 3 modules will have 15 to 1 turndown. This gives you a substantial range of outputs. For example: 1 x 250kW boiler module with 5:1 turndown ratio A 3-high boiler stack would be 750kW with a 15:1 boiler turndown ratio This boiler can provide a seamless delivery of energy at any output from 50kW up to 750kW. This ensures the load is matched to warm the building up and when you’ve got low loads the modular boilers are not constantly cycling and wasting energy. If you know us at Hamworthy you’ll know that we talk a lot about load matching, but why do we think it’s so important? Note: All dimensions in mm unless otherwise stated. BOILERS
17 01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com Want to knowmore? Book on to our NEW CIBSE accredited CPD seminar all about controls to understand how to manage your boilers for best efficiency. hamworthy-heating.com/cpd It’s about how you drive it Just like your car, a boiler needs to be driven correctly to achieve high operating efficiencies and close load matching. A good boiler sequence controller will help control the boilers in the most efficient way. See page 78 for information on our boiler sequence controller. Saving fuel, money and the environment Accurate load matching ensures you only use the fuel you need. This saves you money and reduces carbon emissions. And depending on the size of the project, these savings can be quite considerable. Large vs small But have you also considered the impact of replacing one large output single boiler with multiple smaller output modular boilers? The differences in gas use for the right application can be huge. A large single boiler will have a larger heat exchanger and greater water content. This needs more energy to produce the required output. Smaller modular boilers sharing the same load have smaller heat exchangers and therefore a smaller water capacity and heat up faster thus reducing energy consumption. They also generally have a wider modulation range and greater turn-down ratio than larger boilers making themmore efficient. CO2 £ BOILERS
Products that perform | Service that delivers | People that care 18 Why Hydrogen? Hydrogen has the potential to play a role as part of the heating mix to facilitate the UK’s pathway to net zero by 2050. Why is Hydrogen being considered? Hydrogen is a “clean” gas that does not emit carbon dioxide when burned The existing infrastructure can be utilised and upgraded where required to distribute hydrogen effectively. It burns broadly similar to other flammable gases It has been used safely industrially for decades Hydrogen production Despite hydrogen’s green credentials consideration must be given to the method of production which for some derives how ‘green’ it is. Green hydrogen is the ultimate low carbon fuel - and is produced from electrolysis powered by renewable electricity (wind, solar, or hydro). The process splits water and separates off the hydrogen, with no direct impact on the environment. With the decreasing cost of renewable electricity and its non-reliance of fossil fuels, experts agree green hydrogen is essential to meeting climate change goals. Hydrogen - one gas grid, many products BOILERS
01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com 19 BOILERS Want to knowmore? Read more at hamworthy-heating.com/Hydrogen What is a hydrogen ready boiler? 20% Hydrogen blend A boiler that can operate on a blend with 20% hydrogen It’s expected that existing gas appliances, including boilers, can operate without modification. Has the potential to reduce the carbon emissions in the grid by up to 7% Hydrogen ready Will leave the factory as natural gas boiler but will run on 100% hydrogen via a conversion in the field Likely to become mandatory in 2026 for domestic boilers (subject to consultation in 2021) Will also work on 20% hydrogen 100% Hydrogen Refers to gas appliances that can operate on full hydrogen Will leave the factory as a hydrogen boiler When are we likely to see Hydrogen used to heat our homes and buildings? As the policy for conversion of the gas grid to 100% hydrogen is developed, in the shorter-term it is likely the gas grid will permit 20% blended hydrogen within the 2020s to reduce the carbon intensity of our grid. The good news is that Hamworthy boilers will run on this mix without any modification to the existing technology.
20 BOILERS Stratton mk2 boiler Wall hung condensing commercial boiler with a stainless steel heat exchanger. This compact, high efficiency wall hung boiler features a robust heat exchanger designed in stainless steel for corrosion resistance and long life. Key benefits: Durable stainless steel heat exchanger Accurate load matching Fully modulating for greater performance Quiet operation <60dB(A) Integral boiler sequence controller Space saving flue arrangement with integrated flue gas non-return valve Removable panels for ease of service and maintenance All connections are located in a recess on the underside of the boiler to avoid damage High efficiency levels are backed up by inclusion on the Government’s Energy Technology List (select models only) Options: Room and outside temperature sensors LPB bus communications module Multiple heating circuit control (VT & CT) DHW control with Legionella protection function Natural gas or LPG (up to S2-100) Pipe kits and low loss header Freestanding support frame Flue header kits 7 Models 43-146 kW Output Low height Integrated flue gas non return valve and optional low height frame kits enable the boiler to fit in restricted space plant rooms. Total height of less than 2.2m to top of flue header when using our low height pipe kit. Easy to install Multiple boiler pipework kits. Fully welded boiler mounting frames. Simple hook arrangement for fast mounting. Low loss header & 6 port manifold option. ErP compliant boiler shunt pumps. BIM Objects 5:1 up to Turndown Nat Gas LPG 96 up to Gross Seasonal Efficiency % ErP Part L Compliant Heat Exchanger Warranty
21 01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com Technical data Dimensions Note: All dimensions in mm unless otherwise stated. Boiler model Unit S2-40 S2-60 S2-70 S2-80 S2-100 S2-120 S2-150 Energy Building regulation seasonal efficiency gross % 95.75 96.13 95.50 95.50 96.02 95.95 95.75 ErP efficiency rating A A A N/A N/A N/A N/A Boiler output 50/30 °C kW 43.0 61.0 76.8 87.5 104.5 129.5 146.0 Boiler output 80/60 °C kW 40.0 56.4 69.9 79.8 95.7 119.5 134.0 Boiler input (gross) maximum kW 45.7 64.4 80.0 91.3 109.3 136.5 151.6 Boiler input (nett) maximum kW 41.2 58.0 72.1 82.3 98.5 123.0 137.9 Boiler output minimum 80/60 °C kW 8.3 11.5 17.1 17.1 19.0 23.9 26.8 Water System design flow rate @ 25°C ∆T rise l/s 0.39 0.53 0.67 0.75 0.93 1.14 1.31 Water side pressure loss @ 25°C ∆T rise mbar 205 224 176 205 246 314 380 System design flow rate @ 20°C ∆T rise l/s 0.47 0.67 0.83 0.94 1.14 1.41 1.61 Water side pressure loss @ 20°C ∆T rise mbar 320 350 275 320 385 490 580 System design flow rate @ 11°C ∆T rise l/s 0.9 1.2 1.5 1.7 2.1 2.6 2.9 Water side pressure loss @ 11°C ∆T rise mbar 1058 1157 909 1058 1273 1620 1700 Water pressure maximum (minimum) barg 4 (1.5) 4 (1.5) 4 (1.5) 4 (1.5) 4 (1.5) 4 (1.5) 4 (1.5) Maximum operating water temperature °C 85 85 85 85 85 85 85 Gas Gas flow rate natural gas (G20) - maximum m 3 /h 4.4 6.1 7.6 8.7 10.4 13.0 14.6 Gas inlet pressure natural gas (G20) - minimum/nominal/maximum mbar 17.5 min / 20.0 nom / 25.0 max Flue Approx. flue gas volume @ 15°C, 9.1-9.3% C0 2 , N.T.P m 3 /h 57 79 98 112 135 168 189 Flue gas temperature @80/60 °C °C 80 76 70 74 76 70 70 NOX emission (0% excess oxygen, dry air free) European Class 6 mg/kWh 36 35 35 35 34 36 35 Pressure at flue outlet Pa 156 200 123 179 187 200 200 Misc. Nominal supply voltage 230V 1Ph 50Hz Approx. shipping weight kg 50 60 90 90 95 100 125 Noise emissions/module @ 1m Max dB (A) 57.4 59.7 57.3 57.3 58.5 61.6 59.3 541 B A 800 890 Return G 1¼" male Gas G 1" male Flow G 1¼" male 250 Front Side Underside Dimensions Reference S2-40 S2-60 S2-70 S2-80 S2-100 S2-120 S2-150 Depth (mm) A 477 477 574 574 574 692 800 Top clearance B Top clearance is dependent on flue system choice – see full Stratton mk2 brochure BOILERS derside Fro Side
22 BOILERS Wessex ModuMax mk3 boiler Stainless steel high efficiency, fully modulating condensing pre-mix floor standing boiler. This lightweight, low water content boiler is ideal for city centre, basement or rooftop plant rooms. Individual boiler modules can be stacked one, two or three high in up to 15 combinations. Key benefits: 40°C differential temperature Up to 762kW output in less than one square metre footprint Close load matching Passes through a standard doorway Space-saving stacked modular design 10 bar rated heat cell 90°C maximum flow temperature Integral boiler sequence controller Options: External boiler sequencing cascade controller Room and outside temperature sensors LPB bus communications module Zone control DHW cylinder sensor kit Pipework header kit 15 Models 97-762 kW Output BIM Objects 15:1 up to Turndown Nat Gas LPG 95 up to Gross Seasonal Efficiency % ErP Part L Compliant Heat Exchanger Warranty 40°C ∆T A great product for district heating networks and energy centres. Integrates with other technologies such as CHP and heat pumps. The wider ∆T maximises condensing operation.
23 01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com St Paul’s Cathedral, London Case Study The solution: Hamworthy provided a flexible and efficient modular boiler and hot water solution to fit the building. Two Wessex ModuMax mk3 WM254/508V modular condensing boilers with a combined output of 1,016kWwere chosen. Backed up by a 10-year warranty and fitting through a standard doorway, they provided the installation flexibility needed for St Paul’s Cathedral. To meet the hot water requirements, especially during the summer months’ peak demand when tourist groups arrive, two Powerstock PS500 glass-lined calorifiers with a capacity of 500 litres each and quick recovery time of 18 minutes were chosen. The challenge: St Paul’s Cathedral is a listed building which is subject to strict regulations, prohibiting alterations without special permissions. Leaking steel shell boilers from the 1960s needed replacement. The cathedral considered replacing them with the same kind, but this was not possible due to current legislation to eliminate inefficient boilers. [The Wessex is] space saving, great in refurbishment projects and where you can’t change the building fabric, such as St Paul’s. - Robin Bunton, Bunton Mechanical and Electrical Services ” “ Ticking all the boxes The challenge to provide an energy efficient and compact heating solution to be fitted to an old heating system without changing St Paul’s Cathedral’s building structure was successfully met. Space restrictions were overcome by choosing a modular boiler system to allow installation flexibility and access. Summary: Grade 1 listed building refurbishment Almost 40% reduction in gas consumption BOILERS
24 Products that perform | Service that delivers | People that care Technical data 97-116kW models Dimensions 97-116kW models Boiler model Unit 97/97H 97/194V 97/291V 116/116H 116/232V 116/348V Number of modules 1 2 3 1 2 3 Energy Building regulations Part L seasonal efficiency % 94.9 94.9 94.9 93.1 93.1 93.1 BS EN 15502 seasonal efficiency % gross 95.2 95.2 95.2 93.4 93.4 93.4 Boiler output 50/30 °C kW 97.2 194.4 291.6 116.2 232.5 348.7 Boiler output 80/60 °C kW 95.7 191.4 287.1 115.2 230.4 345.6 Boiler input (gross) maximum kW 109.0 218.0 327.0 133.0 266.0 399.0 Boiler input (nett) maximum kW 98.2 196.4 294.6 119.8 239.6 359.4 Boiler output minimum 80/60 °C kW 19.1 19.1 19.1 23.5 23.5 23.5 Water Design flow rate @ 40°C ∆T rise l/s 0.6 1.2 1.8 0.7 1.4 2.1 Water side pressure loss @ 40°C ∆T rise mbar 5 5 5 7 7 7 Design flow rate @ 30°C ∆T rise l/s 0.8 1.6 2.4 1.0 2.0 3.0 Water side pressure loss @ 30°C ∆T rise mbar 9 9 9 14 14 14 Design flow rate @ 20°C ∆T rise l/s 1.2 2.4 3.6 1.4 2.8 4.2 Water side pressure loss @ 20°C ∆T rise mbar 20 20 20 27 27 27 Design flow rate @ 11°C ∆T rise l/s 2.2 4.4 6.6 2.6 5.2 7.8 Water side pressure loss @ 11°C ∆T rise mbar 61 61 61 91 91 91 Operating water pressure minimum barg Dependent on differential temperature (See full brochure) Operating water pressure maximum barg 10 10 10 10 10 10 Maximum operating water temperature °C 90 90 90 90 90 90 Gas Gas flow rate natural gas (G20) - maximum m 3 /h 10.8 21.6 32.4 12.7 25.4 38.1 Gas inlet pressure natural gas (G20) - min/nom/max mbar 17.5 min / 20.0 nom / 25.0 max Flue Approx. flue gas volume @ 15°C, 9.3-9.8% C0 2 m 3 /h 143 286 429 160 320 480 Flue gas temperature @80/60 °C °C 83 83 83 83 83 83 NOX emission (0% excess oxygen, dry air free) European Class 6 mg/kWh 39.8 39.8 39.8 34.3 34.3 34.3 Pressure at flue outlet Pa 150 150 150 150 150 150 Misc. Nominal supply voltage 230V 1Ph 50Hz Approx. shipping weight kg 180 355 540 180 355 540 Noise emissions/module @ 1m @max. modulation Max dB (A) 60 60 60 60 60 60 Height to top of flue terminal (A) No. of modules mm 3 2084 2 1543 Note: All dimensions in mm unless otherwise stated. BOILERS Rear Side Front 400 400 1250 * When using Hamworthy pipekits 750 crs 1799 A 600 702 Single 1454 Double 2204 Triple cascade width 750 crs Minimum clearances Minimum boiler to boiler stack spacing Plan Module spacing 541 541 1258 717 836 292 680 Gas R1"male Relief valve ¾"male Flow G1½" male Return G1½" male 400 400 1250 * When using Hamworthy pipekits 750 crs 1799 A 600 702 Single 1454 Double 2204 Triple cascade width 750 crs Minimum clearances Minimum boiler to boiler stack spacing Plan Module spacing 541 541 1258 717 836 292 680 Gas R1"male Relief valve ¾"male Flow G1½" male Return G1½" male 400 400 1250 * When using Hamworthy pipekits 750 crs 1799 A 600 702 Single 1454 Double 2204 Triple cascade width 750 crs Minimum clearances Minimum boiler to boiler stack spacing Plan Module spacing 541 541 1258 717 836 292 680 Gas R1"male Relief valve ¾"male Flow G1½" male Return G1½" male 400 400 1250 * When using Hamworthy pipekits 750 crs 1799 A 600 702 Single 1454 Double 2204 Triple cascade width 750 crs Minimum clearances Minimum boiler to boiler stack spacing Plan Module spacing 541 541 1258 717 836 292 680 Gas R1"male Relief valve ¾"male Flow G1½" male Return G1½" male 400 400 1250 * When using Hamworthy ipekits 750 crs 1799 A 600 702 Single 1454 Doubl 2204 Triple cascade width 750 crs Minimum clearances Minimum b iler to boiler tack spacing Plan Module spacing 541 541 1258 717 836 292 680 Gas R1"male Relief valve ¾"male Flow G1½" male Return G1½" male one side only, required for rear access.
Enhanced controls Integral master/slave feature to sequence up to 16 boiler modules. Cascade or unison sequencing strategies. Outside and room temperature sensors. Greater fuel savings and reduced emissions. BOILERS 25 01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com
Products that perform | Service that delivers | People that care 26 Ultra Compact 762kW in less than one square metre of floor space. Even the largest 3-high stack will pass through a standard doorway. Can be broken down into individual modules for difficult to access plant rooms. BOILERS
27 01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com Technical data 147-254kW models Dimensions 147-254kW models Height to top of flue terminal (A) No. of modules mm 3 2084 2 1543 Note: All dimensions in mm unless otherwise stated. Boiler model Unit 147/ 147H 147/ 294V 147/ 441V 196/ 196H 196/ 392V 196/ 588V 254/ 254H 254/ 508V 254/ 762V Number of modules 1 2 3 1 2 3 1 2 3 Energy Building regulations Part L seasonal efficiency % gross 94.8 94.8 94.8 93.9 93.9 93.9 95.0 95.0 95.0 BS EN 15502 seasonal efficiency 95.2 95.2 95.2 94.1 94.1 94.1 95.3 95.3 95.3 Boiler output 50/30 °C kW 147.4 294.8 442.2 196.3 392.6 588.9 254.4 508.7 763.1 Boiler output 80/60 °C kW 142.8 285.6 428.4 191.6 383.2 574.8 239.8 479.6 719.4 Boiler input (gross) maximum kW 163.0 326.0 489.0 219.0 428.7 657.0 275.0 550.0 825.0 Boiler input (nett) maximum kW 146.8 293.6 440.3 197.2 394.4 591.6 247.6 495.3 742.9 Boiler output minimum 80/60 °C kW 28.7 28.7 28.7 38.6 38.6 38.6 48.4 48.4 48.4 Water Design flow rate @ 40°C ∆T rise l/s 0.9 1.8 2.7 1.2 2.4 3.6 1.5 3.0 4.5 Water side pressure loss @ 40°C ∆T rise mbar 36 36 36 62 62 62 100 100 100 Design flow rate @ 30°C ∆T rise l/s 1.2 2.4 3.6 1.6 3.2 4.8 2.0 4.0 6.0 Water side pressure loss @ 30°C ∆T rise mbar 60 60 60 120 120 120 180 180 180 Design flow rate @ 20°C ∆T rise l/s 1.8 3.6 5.4 2.4 4.8 7.2 3.0 6.0 9.0 Water side pressure loss @ 20°C ∆T rise mbar 145 145 145 246 246 246 395 395 395 Design flow rate @ 11°C ∆T rise l/s 3.3 6.6 9.9 4.3 8.6 12.9 5.4 10.8 16.2 Water side pressure loss @ 11°C ∆T rise mbar 500 500 500 850 850 850 1300 1300 1300 Operating water pressure minimum barg Dependent on differential temperature (See full brochure) Operating water pressure maximum barg 10 10 10 10 10 10 10 10 10 Maximum operating water temperature °C 90 90 90 90 90 90 90 90 90 Gas Gas flow rate natural gas (G20) - maximum m 3 /h 16.0 32.0 48.0 21.4 42.8 64.2 27.9 55.8 83.7 Gas inlet pressure natural gas (G20) - min/nom/max mbar 17.5 min / 20.0 nom / 25.0 max Flue Approx. flue gas volume @ 15°C, 9.3-9.8% C02 m 3 /h 214 428 642 279 558 837 354 708 1062 Flue gas temperature @80/60 °C °C 78 78 78 83 83 83 82 82 82 NOx emission (0% excess oxygen, dry air free) European Class 6 mg/kWh 37.7 37.7 37.7 39.9 39.9 39.9 38.8 38.8 38.8 Pressure at flue outlet Pa 89 89 89 90 90 90 150 150 150 Misc. Nominal supply voltage 230V 1Ph 50Hz Approx. shipping weight kg 226 452 678 226 452 678 226 452 678 Noise emissions/module @ 1m @max. modulation Max dB (A) 65 65 65 65 65 65 65 65 65 400 400 1250 750 crs 1799 A 600 750 crs 704 Single 1454 Double 2204 Triple cascade width Minimum clearances Minimum boiler to boiler stack spacing Module spacing 541 541 1258 717 1082 342 680 Gas RP 1¼" male Relief valve R¾" male Flow G 2½" male Return G 2½" male * When using Hamworthy pipekits 400 400 1250 750 crs 1799 A 600 750 crs 704 Single 1454 Double 2204 Triple casca e width Minimum clearances Minimum b iler to boiler t ck spacing Module spacing 541 541 1258 717 1082 342 680 Gas RP 1¼" male Relief valve R¾" male Flow G 2½" male Return G 2½" male * When using Hamworthy pipekits 400 400 1250 750 crs 1799 A 600 750 crs 704 Single 1454 Double 2204 Triple cascade width Minimum clearances Minimum boiler to boiler stack spacing Module spacing 541 541 1258 717 1082 342 680 Gas RP 1¼" male Relief valve R¾" male Flow G 2½" male Return G 2½" male * When using Hamworthy pipekits 7 r 7 r 7 Si l 454 l 2 ripl c i t i i cl ra i i b iler to b il r st c spaci g l i 541 541 717 s R 1 al Relief valve R¾ mal Fl w G 2 " al R t r G 2 " al sin Ha rthy ip its 400 400 1250 750 crs 1799 A 600 750 crs 704 Single 1454 Double 2204 Triple cascade width Minimum clearances Minimum boiler to boiler stack spacing Module spacing 541 541 1258 717 1082 342 680 Gas RP 1¼" male Relief valve R¾" male Flow G 2½" male Return G 2½" male * When using Hamworthy pipekits BOILERS Rear Side Front one side only, required for rear access.
28 BOILERS Purewell Variheat mk2 boiler Cast iron condensing, fully modulating, pre-mix gas-fired commercial boiler. Purewell Variheat mk2 is the only ErP compliant cast iron condensing commercial boiler available in the UK. It is the natural replacement for old atmospheric boilers. Key benefits: Robust cast iron heat exchanger Proven reliability with 10-year heat exchanger warranty Tolerant of older heating systems Close control and accurate load matching Secondary heat exchanger ensures maximum amount of residual heat from combustion is extracted 6 bar rated heat cell Integral boiler sequence controller for up to 16 boiler modules Suitable for open vented and sealed systems Easy access for servicing with quick to remove front cover hooks Ideal for refurbishments - sits on same footprint as many older atmospheric boilers Options: External boiler sequencing cascade controller Room sensors LPB bus communications modules Outside air sensor DHW cylinder sensor kit Pipework header kits Available for use with LPG Air (for Channel Islands) 5 Models 70-180 kW Output 47% reduction in gas consumption The Marlowe Theatre in Canterbury almost halved their gas consumption by upgrading to Purewell Variheat boilers. Read more on page 103. BIM Objects 3:1 up to Turndown Nat Gas LPG 96 up to Gross Seasonal Efficiency % ErP Part L Compliant Heat Exchanger Warranty
29 01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com 1286 1177 Condensate drain 32 dia. 460 min 460 min* 139 865 680 recommended 534 Return connection R2" male Gas connection R1" male Flow connection R2" male 150mm clearance 460 recommended Technical data Dimensions Note: All dimensions in mm unless otherwise stated. * Rear clearance required when using Hamworthy pipe kits. * If higher flow temperatures are required (up to 85°C maximum) please contact Hamworthy. Purewell Variheat mk2 boiler models Units PV70c PV95c PV110c PV140c PV180c Energy Building regulations - seasonal efficiency (%) gross 95.3 95.6 95.8 95.7 94.6 ErP efficiency rating (modules ≤ 70kW only) A N/A N/A N/A N/A Boiler output (non-condensing) mean 70°C - maximum kW 63.5 86.3 99.8 134.4 172.8 Boiler output (non-condensing) mean 70°C - minimum kW 21.2 28.8 33.3 44.8 50.3 Boiler output (condensing) mean 40°C - maximum kW 70 95 110 140 180 Boiler output (condensing) mean 40°C - minimum kW 23.3 31.67 36.37 46.67 53.0 Gross boiler input - maximum kW 72.2 98.4 115 151.3 194.6 Gross boiler input - minimum kW 24.1 26.7 38.3 50.4 56.6 Net boiler input - maximum kW 65 88.6 103.5 136.3 175.2 Net boiler input - minimum kW 21.7 29.6 34.5 45.4 51.0 Water System design flow rate @ 20°C ∆T rise l/s 0.8 1.1 1.3 1.7 2.1 Water side pressure loss @ 20°C ∆T rise mbar 32 52 72 134 221 System design flow rate @ 11°C ∆T rise l/s 1.5 2.1 2.4 3 3.9 Water side pressure loss @ 11°C ∆T rise mbar 96 176 244 442 731 Maximum water pressure bar g 6 6 6 6 6 Gas Gas flow rate natural gas (G20) - maximum m3/hr 6.9 9.4 10.9 14.4 18.5 Maximum gas inlet pressure natural gas (G20) mbar 25 25 25 25 25 Flue Flue Gas Flow Rate@ 15°C, 9.5% CO2 m3/hr 86 117 137 180 232 Approx. flue gas temperature @ 80/60 (50/30)°C °C 60 (40) 60 (40) 65 (45) 70 (50) 75 (50) Pressure at boiler flue spigot @full load Pa 100 100 100 100 100 Dry NOx emission (0% excess oxygen, dry air free) European Class 6 mg/kWh 21.3 31.1 39.1 32 37.8 Nominal flue diameter (I/D) mm 150 150 150 150 150 Electrics Electrical supply 230 V 1Ph 50Hz Power consumption @maximum W 94 94 94 207 207 IEC power outlet power consumption @ maximum W 460 460 460 460 460 Start current and run current Amp 0.54 0.54 0.54 0.6 0.6 Misc. Approx shipping weight kg 195 195 195 250 250 Noise emission @1m and @maximum boiler modulation Max dB (A) 53 53 53 65 65 Front Back Side BOILERS
30 BOILERS Upton boiler Vertically-stacked, fully-modulating condensing pre-mix, gas-fired aluminium boiler. The compact, space-saving, vertically stacked design means more than 1MW output can sit on less than 1 square metre footprint. Key benefits: Highly efficient for energy saving and compliance with legislation High turndown ratio enables close load matching for improved efficiencies Gas and water connections identical across range Easy access for service and system cleaning Advanced controls platform with integrated sequence control Low noise for installation close to building occupants 6 bar rated heat cell Air inlet filter for clean combustion and reduced noise. Options: NEW pipework header kits with optional matched pumps (see Upton brochure for details) Low loss header with integrated air and dirt separator 3 port manifold Blanking plates for left and right sided pipe installation Room and outside temperature sensors LPB bus communications module Multiple heating circuit control (VT & CT) DHW control with Legionella protection function 18 Models 98-1046 kW Output BIM Objects 15:1 up to Turndown Nat Gas LPG 97 up to Gross Seasonal Efficiency % ErP Part L Compliant Heat Exchanger Warranty Aluminium sectional heat exchanger Quick to respond with low water content. Excellent heat transfer properties. Lightweight and compact. Parallel water flow for an even surface temperature. 5-year warranty.
31 01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com BOILERS Technical data 100-150kW modules Dimensions 100-150kW modules Note: All dimensions in mm unless otherwise stated. *Note: the rear clearance allows for installation of a Hamworthy pipe kit. If installing a third stack of boilers either an additional 500mm clearance would be required behind the pipe kit or the spacer spool (400mm) would need to be fitted between the second and third boiler stack. Boiler model Units UF100-1 UF200-2 UF300-3 UF150-1 UF-300-2 UF450-3 No. of modules 1 2 3 1 2 3 Energy Building regulations Part L seasonal efficiency % gross 97.4 97.4 97.4 95.6 95.6 95.6 Boiler output 80/60°C kW 89.1 178.2 267.3 134.5 269.0 403.5 Boiler output 50/30°C kW 98.6 197.2 295.8 147.3 294.6 441.9 Boiler input gross (maximum) kW 103.0 206.0 309.0 154.6 309.2 463.8 Boiler input nett (maximum) kW 92.8 185.5 278.3 139.2 278.4 417.6 Boiler output 80/60°C (minimum) kW 17.8 17.8 17.8 26.9 26.9 26.9 Water Water content litres 9.0 18.0 27.0 12.6 25.2 37.8 System design flow rate @ 11°C ∆T rise l/s 2.2 4.3 6.5 3.3 6.5 9.8 Water side pressure loss @ 11°C ∆T rise mbar 736 736 736 820 820 820 System design flow rate @ 20°C ∆T rise l/s 1.2 2.4 3.6 1.8 3.6 5.4 Water side pressure loss @ 20°C ∆T rise mbar 225 225 225 250 250 250 Maximum water pressure barg 6 6 6 6 6 6 Maximum flow temperature setting °C 85 85 85 85 85 85 Minimum flow temperature setting °C 30 30 30 30 30 30 Gas Gas flow rate (maximum) m 3 /hr 9.8 19.6 29.5 14.7 29.5 44.2 Gas inlet pressure - minimum/nominal/maximum mbar 17.5 min / 20.0 nom / 25.0 max Flue Approx flue gas volume @ 72°C , 9.0% CO2 m 3 /hr 155 310 465 233 466 699 Maximum flue gas temperature @ 80/60°C °C 72 72 72 72 72 72 Pressure available at flue connection Pa 150 150 150 150 150 150 mbar 1.5 1.5 1.5 1.5 1.5 1.5 NOX,pond,Hs (gross) emission (0% excess oxygen, dry air) mg/kWh 33 33 33 32 32 32 NOX Class 6 6 6 6 6 6 Misc. Electrical supply 230V ~ 50Hz 230V ~ 50Hz 230V ~ 50Hz 230V ~ 50Hz 230V ~ 50Hz 230V ~ 50Hz Approx shipping weight kg 152 286 420 177 336 495 Noise emission @1m @max modulation (per module) Max dB (A) 55.8 55.8 55.8 59.4 59.4 59.4 Minimum clearances Flue Ø200 Minimum boiler to boiler spacing 1800* 700 1450 2200 50 A 380 Flue 754 750 750 Flow R2-11 Return R2-11 Gas R1 1/4-11 700 Minimum clearances Flue Ø200 1300 Minimum boiler to boiler spacing 1800* 700 1450 2200 50 2017 A 380 Flue 754 400 400 750 750 Flow R2-11 Return R2-11 Gas R1 1/4-11 700 1403 789 Minimum clearances Flue Ø200 1300 Minimum boiler to boiler spacing 1800* 700 1450 2200 50 2017 A 380 Flue 754 400 400 750 750 Flow R2-11 Return R2-11 Gas R1 1/4-11 700 1403 789 Minimum clearances Flue Ø200 1300 Minimum boiler to boiler spacing 1800* 700 145 2200 50 2017 A 380 Flue 754 400 400 750 750 Flow R2-11 Return R2-11 Gas R1 1/4-11 700 1403 789 Height to top of flue terminal (A) No. of modules mm 3 1990 2 1376 Side Rear * one side only, required for rear access.
32 Technical data 200-250kW modules Dimensions 200-250kW modules Note: All dimensions in mm unless otherwise stated. Minimum boiler to boiler spacing Minimum clear Flue Ø250 180 700 50 1450 2200 750 750 38 Flu A 700 Flow R2-11 Return R2-11 Gas R1 1/4-11 Note: all flow, return and gas connections male Minimum boiler to boiler spacing 1300 Minimum clearances Flue Ø250 400 400 1800* 700 50 1450 2200 750 750 381 Flue 942 2017 A 700 Flow R2-11 Return R2-11 Gas R1 1/4-11 Note: all flow, return and gas connections male 1403 789 Minimum boiler to boiler spacing 1300 Minimum clearances Flue Ø250 400 400 1800* 700 50 1450 2200 750 750 381 Flue 942 2017 A 700 Flow R2-11 Return R2-11 Gas R1 1/4-11 Note: all flow, return and gas connections male 1403 789 Minimum clearances* 1300 1300 400 400 *Note: the rear clearance allows for installation of a Hamworthy pipe kit. If installing a third stack of boilers either an additional 500mm clearance would be required behind the pipe kit or the spacer spool (400mm) would need to be fitted between the second and third boiler stack. Boiler model Units UF200-1 UF400-2 UF600-3 UF250-1 UF500-2 UF750-3 No. of modules 1 2 3 1 2 3 Energy Building regulations Part L seasonal efficiency % gross 96.5 96.5 96.5 94.3 94.3 94.3 Boiler output 80/60°C kW 181.7 363.4 545.1 229.4 458.8 688.2 Boiler output 50/30°C kW 197.9 395.8 593.7 246.9 493.8 740.7 Boiler input gross (maximum) kW 208.9 417.7 626.6 261.9 523.9 785.8 Boiler input nett (maximum) kW 188.1 376.1 564.2 235.9 471.7 707.6 Boiler output 80/60°C (minimum) kW 36.3 36.3 36.3 45.9 45.9 45.9 Water Water content litres 16.2 32.4 48.6 19.8 39.6 59.4 System design flow rate @ 11°C ∆T rise l/s 4.3 8.7 13.0 5.4 10.9 16.3 Water side pressure loss @ 11°C ∆T rise mbar 710 710 710 767 767 767 System design flow rate @ 20°C ∆T rise l/s 2.4 4.8 7.2 3 6.0 9.0 Water side pressure loss @ 20°C ∆T rise mbar 217 217 217 234 234 234 Maximum water pressure barg 6 6 6 6 6 6 Maximum flow temperature setting °C 85 85 85 85 85 85 Minimum flow temperature setting °C 30 30 30 30 30 30 Gas Gas flow rate (maximum) m 3 /hr 19.1 38.2 57.3 25.0 49.9 74.9 Gas inlet pressure - minimum/nominal/maximum mbar 17.5 min / 20.0 nom / 25.0 max Flue Approx flue gas volume @ 72°C , 9.0% CO2 m 3 /hr 314 628 942 394 788 1182 Maximum flue gas temperature @ 80/60°C °C 72 72 72 72 72 72 Pressure available at flue connection Pa 150 150 150 150 130 130 mbar 1.5 1.5 1.5 1.5 1.3 1.3 NOX,pond,Hs (gross) emission (0% excess oxygen, dry air) mg/kWh 33 33 33 35 35 35 NOX Class 6 6 6 6 6 6 Misc. Electrical supply 230V ~ 50Hz 230V ~ 50Hz 230V ~ 50Hz 230V ~ 50Hz 230V ~ 50Hz 230V ~ 50Hz Approx shipping weight kg 220 422 624 247 476 705 Noise emission @1m @max modulation (per module) Max dB (A) 59.7 59.7 59.7 58.5 58.5 58.5 Height to top of flue terminal (A) No. of modules mm 3 1990 2 1376 BOILERS Side Rear
RkJQdWJsaXNoZXIy NTAwMTk1