Hoval SR-plus heating boilers Outputs from 30 to 4000kW Working pressures to 8 bar
...built in the UK where high quality and reliability have been a way of life for generations. Hoval SR-plus Simplicity of design High grade steel construction No minimum fl ow required through boiler Effi ciency to 2% net Hinged door for easy cleaning and maintenace Low annual service costs Extended warranty and annual service contracts available Available in PED version for higher temperatures and pressures Available in Combination, Heatpack and Condensing formats Available as lead or back-up with biomass or bio-fuel fi red boilers
Hoval SR-plus steel shell hot water boilers 30kW - 4000kW. Reliable. Durable. Built to Last. The Hoval SR-plus is a well proven steel shell boiler designed and manufactured under EN ISO 001 being fully CE-marked. The SR-plus offers both high effi ciency with low NOx and is based on the proven reverse fl ame pattern of fi ring. Key Benefits No minimum water fl ow rate is required due to the generous boiler water content. However an adequate pump run-on time is required through individual boilers (i.e: when not fi ring) to dissipate heat to avoid the occurance of nuisance over-temperature lockouts. High quality steel chamber and shell construction with heavy grade tubes. Standing losses typically 0.3%. Hinged boiler door and smoke box cleaning doors provide easy access for cleaning and maintenance. Operating temperatures up to 100 C. (Higher temperature version with PED certifi cation available on request) Working pressure 6 bar as standard. 8 bar model available on request. Effi ciency to 2% net. Suitable for fi ring with a range of matched burners for use with gas (including bio-gas), oil (including bio-diesel) or dual fuel. Available in stacked SR-plus Heatpack version. Allows a second boiler to be stacked on top of another. Combi version with inbuit calorifi er available. Condensing version with combined TC-AF ThermoCondensor available. Controls All SR-plus boilers are supplied with an integral control panel which is top or side mounted for models 30 to 00 and side mounted as standard for models 1200 to 4000. The standard control panel incorporates the following: Flow thermometer. Temperature control thermostat(s). High temperature limit thermostat with manual reset. On/off switch. Excess temperature, burner run, burner lockout and high fi re indicators. Optional items include: Volt free contacts (for BMS interface) Hours run meter Burner modulating controller Flue gas thermometer and altitude gauge. TopTronic T control Hoval TopTronic T controller(s) can be supplied, providing a simple user friendly operating platform that controls individual heating and hot water systems and optimises energy consumption. Burners It is Hoval policy to supply boilers with matched burners from several recognised manufacturers. Details of gas pressures, gas boosters, noise levels, acoustic shrouds etc are given on individual quotations.
Hoval SR-plus Heating Boiler Technical Data SR-plus Type 30 400 00 600 700 00 1200 100 Maximum output kw 360 410 00 600 70 1000 120 100 Minimum output kw 180 20 22 300 37 00 62 70 Boiler input at maximum output kw 33.44 448.8 46.4 66.0 818.77 104.0 1366.12 1646.4 Boiler input at minimum output kw 12.31 21.02 240.60 322.23 401.0 34.76 667.74 803.86 Maximum boiler operating temperature (1) C 100 100 100 100 100 100 100 100 Minimum return temperature (oil/gas) C 60/ 60/ 60/ 60/ 60/ 60/ 60/ 60/ Minimum fl ue gas temperature C 140 140 140 140 140 140 140 140 Maximum working pressure / test pressure (2) bar 6/ 6/ 6/ 6/ 6/ 6/ 6/ 6/ Boiler effi ciency net (3) at 100%PN % 1. 1.4 1. 1.4 1.6 1.4 1. 1.1 at 30%PN % 3.6 3. 3. 3.1 3.4 3. 3.6 3.3 Standing losses qb at 70 C Watt 2 1066 120 100 172 1800 237 2400 Insulation thickness mm 100 100 100 100 100 100 100 100 Fuel Consumption at maximum output Nat Gas (4) m 3 /hr 40.77 46.4 6.3 68.07 84.0 113.4 141.66 170.73 3 seconds oil () litres/hr 3.0 4.03.17 66.13 77.22.37 137.87 166.16 Hydraulic resistance through the boiler (6) z-factor 0.10 0.03 0.020 0.020 0.010 0.011 0.011 0.00 Hydraulic resistance with 11 K T m bar 83.14.1 30. 44.00 34.36 67.20 10.00 122.31 Hydraulic resistance with 20 K T m bar 2.1 28.0.2 13.31 10.3 20.33 31.77 37.43 Water Flow rate with 11 K T m 3 / h 28.14 32.0 3.08 46.0 8.62 78.16 7.71 117.2 Water Flow rate with 20 K T m 3 / h 1.48 17.63 21.0 2.80 32.24 42. 3.74 64.4 Boiler water content litres 28 17 800 770 1340 120 1320 1330 Dry Weight (without burner) (7) kg 1600 160 1700 174 2463 2616 330 360 SR-plus Type 170 2000 220 200 270 3000 300 4000 Maximum output kw 1760 200 230 260 2800 3000 300 410 Minimum output kw 880 102 117 132 1400 100 170 207 Boiler input at maximum output kw 131.4 2242.8 273.3 208.8 3063.46 328.87 3837.72 4.43 Boiler input at minimum output kw 4.22 1100.7 1260.73 1418.63 147.33 1602.6 1871.66 2226.40 Maximum boiler operating temperature (1) C 100 100 100 100 100 100 100 100 Minimum return temperature (oil/gas) C 60/ 60/ 60/ 60/ 60/ 60/ 60/ 60/ Minimum fl ue gas temperature C 140 140 140 140 140 140 140 140 Maximum working pressure / test pressure (2) bar 6/ 6/ 6/ 6/ 6/ 6/ 6/ 6/ Boiler effi ciency net (3) at 100%PN % 1.1 1.4 1.3 1.1 1.4 1.3 1.2 1.1 at 30%PN % 3.1 3.1 3.2 3.4 3. 3.6 3. 3.2 Standing losses qb at 70 C Watt 247 210 230 270 2620 260 3070 3160 Insulation thickness mm 100 100 100 100 100 100 100 100 Fuel Consumption at maximum output Nat Gas (4) m 3 /hr 200.33 232.8 266.0 300.7 317.66 340.3 37.1 4.30 3 seconds oil () litres/hr 14.6 226.34 2.7 276.3 303.63 330.87 387.86 443.0 Hydraulic resistance through the boiler (6) z-factor 0.008 0.006 0.006 0.001 0.001 0.001 0.001 0.0017 Hydraulic resistance with 11 K T m bar 11.40 14.06 202.4 64.36 71.8 82.48 112.6 166.1 Hydraulic resistance with 20 K T m bar 4.80 46.60 61.24 1.47 21.73 24. 33.6 0.27 Water Flow rate with 11 K T m 3 / h 137.7 160.24 183.6 207.14 218.86 234.4 277.7 312.66 Water Flow rate with 20 K T m 3 / h 7.66 88.13 101.03 113.2 120.37 128.7 10.47 171.6 Boiler water content litres 210 260 330 3660 3780 3670 4020 4130 - Dry Weight (without burner) (7) kg 432 4600 400 00 642 62 8700 1080 (1) Based on a maximum limit thermostat setting of 110 o C. SR-plus boilers suitable for higher operating temperatures conforming to the PED are available on request. (2) Refers to all standard SR-plus boilers. A higher pressure version is available on request, (8 bar maximum operating pressure / 12 bar test). (3) Boiler effi ciencies at 100% load are based on a mean operating temperature of 70 o C, at 30% effi ciencies are based on a mean temperature of 0 o C. () Based on gross CV 4. MJ/kg and specifi c gravity 0.83. (6) Hydraulic resistance (mbar) = (Flow rate (m 3 /h)) 2 x z Figures are based on the maximum boiler outputs. (7) Dry weights based on the 6 bar boiler. To calculate the weight of an 8 bar version add 30%. (4) Based on gross CV 38. MJ/m 3. 4
Hoval SR-plus Heating Boiler Dimensions and Technical Information SR-plus heating boiler (models 30 to 00) J H G C B Control panels are mounted on top of the boiler as standard. Side mounting (left or right) can also be accommodated. 1 10 7 2 1 2 3 Burner CL 7 A 7 7 Bur C 6 E 6 L 8 8 4 4 F D Rear view Note: The installer must ensure the condensate drain connection (8) is piped to drain via a drain trap to prevent flue gases escaping. Do not fi t an isolation valve in this pipework. As well as the safety valve, the installer must provide i) for a pressurised system - an automatic air vent. ii) for an open vented system - a vent from the fl ow line. Key 1 Flow 4 Hydraulic Drain 7 Flue gas Test Point 2 Return Flue Outlet 8 Smokebox Condensate Drain Connection 3 Safety Valve Connection 6 Smokebox Cleaning Door Control Panel # Flanges PN16 on optional 8 bar boilers A single phase 230V supply is required for the control panel operation. Single phase burners are electrically supplied via the control panel. Three phase burners require a seperate three phase isolated supply (by the installer direct to the burner, incorporating a flexible connection to allow for boiler/burner door opening. A seperate control cable is fi tted with wieland plug/sockets to run between the control panel and the burner. SR- Plus Model kw Rating A B C D E F G H J L Flow/return flanged to BS404 PN6 # Safety valve Flue I/D Dry Weight kg Water Content litres 30 336-360 1276 1130 2020 16 711 10 1200 70 2 711 80 N/B R 2 22 1600 28 400 361-410 1276 1130 2020 16 711 10 1200 70 2 711 80 N/B R 2 22 160 17 00 411-00 1413 1262 2323 18 766 10 1320 20 280 766 100 N/B R 2½" 20 1700 800 600 01-600 1413 1262 2323 18 766 10 1320 20 280 766 100 N/B R 2½" 20 174 770 700 601-70 182 1440 280 2414 86 220 1780 1330 36 86 12 N/B R 2½" 300 2463 1340 00 876-1000 182 1440 280 2414 86 220 1780 1330 36 86 12 N/B R 2½" 300 2616 120
Hoval SR-plus Heating Boiler Dimensions and Technical Information SR-plus heating boiler (models 1200 to 4000) C J 1 G H 100 INSULATION 3 2 Control panel can be mounted on left or right hand side. 180 7 7 7 6 Burner CL 8 8 A L 10 E 4 F D ELEVATION B REAR VIEW Note: The installer must ensure the condensate drain connection (10) is piped to drain via a drain trap to prevent fl ue gases escaping. Do not fi t an isolation valve in this pipework. As well as the safety valve, the installer should provide; i) For a pressurised system - an automatic air vent. ii) For an open vented system - a vent from the fl ow line. Key 1 Flow 4 Hydraulic Drain 7 Flue Gas Test Point 2 Return Shell Access Connection 8 Flue Outlet 3 Safety Valve Connection 6 Smokebox Cleaning Door Control Panel 10 Smokebox Condensate Drain Connection A single phase 230V supply is required for the control panel operation. Single phase burners are electrically supplied via the control panel. Three phase burners require a seperate three phase isolated supply (by the installer direct to the burner, incorporating a flexible connection to allow for boiler/burner door opening. A seperate control cable is fi tted with wieland plug/sockets to run between the control panel and the burner. SR- Plus Model kw Rating A B C D E F G H J L Flow/Return flanged to BS404 PN16 Safety valve Flanged to BS404 PN16 Flue I/D Dry Weight kg Water Content litres 1200 111-120 1626 100 20 214 876 220 1807 137 32 876 12 N/B 80 N/B 30 300 1320 100 1426-100 1722 10 20 214 27 220 1807 137 32 27 10 N/B 80 N/B 400 330 1330 170 162-1760 182 1720 3361 266 2 220 214 14 602 2 10 N/B 80 N/B 400 402 210 2000 100-200 12 1820 3381 266 1042 240 214 14 602 1042 10 N/B 80 N/B 40 417 260 220 2200-230 2103 170 344 306 1118 20 2212 162 602 1118 10 N/B 80 N/B 40 100 330 200 240-260 2143 2016 38 3140 113 270 2384 1734 612 113 200 N/B 80 N/B 40 600 3660 270 267-2800 2261 2120 3674 321 1200 280 214 1864 612 1200 200 N/B 80 N/B 00 612 3670 3000 200-3000 2261 2120 3674 321 1200 280 214 1864 612 1200 200 N/B 80 N/B 00 622 3670 300 320-300 2477 2300 423 3720 1327 340 212 2387 612 1327 200 N/B 80 N/B 00 8400 4020 4000 370-410 2660 2400 4270 37 1460 340 2812 2162 612 1460 200 N/B 80 N/B 0 100 4130 6
Hoval SR-plus Heating Boiler Installation Information Delivery and assembly All SR-plus boilers are delivered with burner, insulation, cladding and control panel fi tted prior to despatch. Any ancilliary items such as safety valves, altitude gauges, drain valves, gas boosters etc, will also be supplied separately for fi tting by the installer. Typical Plan View If 3ph burners are fi tted, the installer should ensure that the power supply to the burner is fl exible to allow the boiler door to fully open. Plantroom Layout. Wherever possible, space should be left around the boiler to enable all parts to be examined and the cubicle casings to be fi tted or removed easily. Front clearance: Space for the burner and the servicing of the equipment, must be accommodated. Ideally, front clearance should equate to the length of the boiler. This will permit the cleaning and removal of boiler tubes. The installer is advised to avoid creating obstructions which may hinder opening the boiler door, or the fitting of an acoustic shroud. These obstructions include; other plant, extended boiler plinths, extensive gas pipework, and rigid oil lines / burner power supplies. Hoval recommend the boiler plinth does not project beyond the front of the boiler as this will prevent a wheel over type shroud from encapsulating the burner. Also, in some circumstances a plinth may be necessary to increase the fi ring height of the boiler to accomodate a particular burner. The installer must avoid, wherever practicable, the fitting of pipework within the swing of the boiler door. If this is not possible, a removeable stool piece with a shut off valve upstream must be fi tted. Side Clearance: Generally a minimum clearance of 100mm is required at the side of the boiler to fi t and remove the side casings. Space to one side of the boiler is required to swing the boiler door with the burner fi tted, (standard to the right, optional to left), whereby when the door is open 0 o, the length of the burner+80mm will be at the side of the boiler. Normally the same access for the burner swing can also be used for getting to the back of the boiler. Where gas burners are fi tted consideration should be given to the gas train (and booster if specifi ed). Normally the gas mains are run either from high or low level. In both cases an elbow has to be fi tted off the gas train to connect back to the header. Where gas trains fall within the width of the boiler this elbow has to be taken into account. Back clearance: is required for the fl ue and system connections and access to the cleaning door. Top clearance: is required above the boiler to fi t safety valves, automatic air vents and to access the top boiler on Heatpack units. Shorter clearances are possible subject to cleaning methods and plantroom layout. Please consult Hoval technical. K Minimum Access L W T K = (W T) x L T = (W K) x L T = Door opening K = Corridor width W = Boiler width L = Boiler length 7
Other associated products SR-plus Combination The SR-plus combination boiler couples the tried and tested technology of the SR-plus boiler with that of the Hoval CT-plus and Modul-plus calorifi er range. Mounted on top, the calorifi er combines with the boiler to provide a fully integrated package, including the primary circulating pump and DHW temperature control. Mix & Match your DHW and heating requirements with a tailored combination package. Hoval Ltd Northgate Newark Notts NG24 1JN Tel: (01636) 672711 Fax: (01636) 67332 e-mail: boilersales@hoval.co.uk Web Site: www.hoval.co.uk SR-Plus Condens Combined with a TC-AF ThermoCondensor to form a fully engineered and matched package, the highly effi cient SR-plus is even better, achieving up to 107% net effi ciency on gas. The ThermoCondensor alufer TC-AF is an independent exhaust gas condensation heat recovery unit. It is available in seven sizes and matched to Hoval gas fi red pressure jet boilers. The TC-AF can be matched as a single unit with the SR-plus boiler up to 3200kW to achieve signifi cant energy savings Hoval STU: The Hoval STU Biomass is a welded steel wood-pellet fired LTHW boiler designed and manufactured to fully meet the requirements of EN303- Class 3 as tested and verified by TÜV. The boiler comprises of a welded steel shell with a water jacket surrounding an oval combustion chamber and is based on the well-established Hoval ST boiler design, with unique e pattern gas flow. Output: 100-1200kW Hoval Service For specialist commissioning, maintenance and troubleshooting of your Hoval equipment, contact our in-house Service and Spares Department. Make use of it to ensure economic operation, reliability and best cost of ownership. September 200 By Appointment to Her Majesty the Queen Boiler Manufacturers & Engineers Hoval Ltd Newark. Conservation of energy - protection of the environment Hoval follows a policy of continued improvement and reserves the right to change specifi cations without notice.