GAS 120 ACE WHAT’S INSIDE 03 WELCOME TO REMEHA 13 ELECTRICAL CONNECTIONS 03INTRODUCING THE REMEHA GAS 120 ACE RANGE 14 FLUE OPTIONS 04BOILER CONSTRUCTION 20SINGLE BOILER HYDRAULIC ACCESSORIES 05 OPERATING PRINCIPLE 22 MODULAR/CASCADE OPTIONS 06TECHNICAL INFORMATION 22SMART CONNECTION TECHNOLOGY 08ENGINEERING SPECIFICATION 09DIMENSIONS AND CONNECTIONS 10MAINTENANCE AND SERVICE CLEARANCES 11 TYPICAL INSTALLATIONS 12ELECTRICAL INSTALLATION 23 TECHNICAL SUPPORT 23DECLARATION OF COMPLIANCE GAS 120 ACE RANGE 03 WELCOME TO REMEHA, THE EXPERT CHOICE WE LEAD THE WAY IN INNOVATION, RELIABILITY AND EFFICIENCY FOR ADVANCED, COMMERCIAL HEATING SOLUTIONS. We’re completely focused on commercial heating solutions and are at the forefront of condensing gas boiler technology – we don’t manufacture boilers for anyone else. We invest heavily in research and development which enables our specialist teams to design high-performance products at every level. From using the latest materials and manufacturing techniques to meticulously designing and engineering each boiler, we ensure they’re the right choice to specify, install, run and maintain. All our boilers share the same simple design, so they’re expandable, adaptable and future-proofed. We’ve tried to think of everything, so from specification through to supply and installation, our customer service and product support is our number one priority. INTRODUCING THE REMEHA GAS 120 ACE RANGE The Gas 120 Ace range features advanced floor-standing, modular gas-fired condensing boilers, available in 65, 90 and 115 models. These boilers have been specifically developed to fit directly into the same floor area as a traditional boiler of equal output, promoting higher energy-efficiency and lower carbon emissions. They're designed for sealed heating systems, with a maximum operating temperature of 90°C. FEATURES AND BENEFITS High efficiency condensing boilers (up to 97.6% gross seasonal efficiency) for use with natural gas or LPG Higher than average energy savings Low Class 6 NOx emission levels from 29mg/kWh (0% 02, dry) Low pollutant emissions meeting all environmental legislation 0-10 volt and volt free contacts as standard R-Bus Allows basic connection to a BMS system Remeha Connect Predictive and scheduled maintenance, full/advanced connection to a BMS system e-Smart ready (upgraded controls) Remote boiler connection over wifi, buffer management, DHW, new cascade manager Open Therm connectivity (iSense, iSense Pro, eTwist) For quick and easy connection between boiler and thermostatic controller Cascade packages for up to 4 boilers Space saving solution for greater design flexibility Quiet operation <45dBA Improved comfort levels – suitable for schools and hotels Extremely compact – boilers are only 600mm wide The Gas 120 Ace range will fit into even the smallest of plant rooms (offering a genuine alternative to using wall-hung boilers which are more labour intensive to install) GAS 120 ACE BOILER CONSTRUCTION 20 19 1 18 2 17 3 4 16 5 15 6 14 7 13 12 11 8 9 10 MW-2000670-02 KEY 1 Control unit 8 Return sensor 15 Flue gas sensor 2 Flow sensor 9 Pressure gauge sensor 16 Fan 3 Light 10 CU-GH-08 PCB housing 17 Automatic air vent 4 Ignition/ionization electrode 11 Siphon 18 Flue gas measuring point 5 Non-return valve 12 Flue gas circuit 19 Combustion air measuring point 6 Gas valve 13 Intake silencer 20 Flue gas outlet/air supply 7 Heat exchanger (heating circuit) 14 Venturi BOILER CONSTRUCTION AND OPERATING PRINCIPLE 05 GAS 120 ACE OPERATING PRINCIPLE The products of combustion, in the form of hot flue gases, are forced through the heat exchanger, transferring their heat to the system water. The flue gas temperature is reduced to approximately 5°C above the temperature of the system return water then discharged vertically via the condensate collector, through the flue connection to atmosphere. The low flue gas exit temperature means there will be a vapour cloud formed at the flue gas terminal – this is water vapour formed during the combustion process. If the controls allow the flow, and therefore return temperature, to fall below dew point (55°C), this water vapour will begin to condense in the boiler, transferring its latent heat into the system water and increasing the output of the boiler, without increasing gas consumption. Condensation formed within the boiler and flue system is discharged from the boiler to an external drain via the drain pan/siphon supplied. Combustion air is drawn into the closed air box by a variable speed fan, through the air inlet connection from the plant room (open flued) or from outside via the concentric flue system (room-sealed). On the inlet side of the fan is a specially designed Venturi which is connected to the outlet side of the gas valve. Depending on the demand (under the dictates of flow/return sensor and other external/internal control inputs) the electronic control unit directly monitors the volume of gas and air being delivered to the premix burner. This mixture is initially ignited by the combined ignition/ionisation probe which then monitors the state of the flame. If the flame doesn’t ignite or is unstable, within the pre-set safety time cycle, the controls will shut the boiler down (after five attempts) requiring manual intervention to reset the boiler. The digital display will also indicate a flashing fault code confirming the reason for the failure. GAS 120 ACE TECHNICAL INFORMATION GAS 120 ACE 65 GAS 120 ACE 90 GAS 120 ACE 115 Nominal output (kW) central heating operation (80/60°C) min-max 12.0-61.5 61.5 14.1-84.2 84.2 18.9-103.9 103.9 Nominal output (kW) central heating operation (50/30°C) min-max 13.5-65.0 65.0 15.8-89.5 89.5 21.2-109.7 109.7 Nominal input (kW) central heating operation (Hi) min-max kW 12.2-62.0 62.0 14.6-86.0 86.0 19.6-107.0 107.0 SEBM seasonal efficiency GCV 97.6 95.7 95.4 Efficiency – full load 100% NCV 99.2 97.9 97.1 Efficiency – part load 30% NCV 110.4 108.1 108 ECO design useful efficiency @ 80/60% (100% full load) GCV 89.4 88.2 87.5 ECO design useful efficiency @ 50/30% (30% part load) GCV 99.5 97.4 97.3 PERFORMANCE EFFICIENCY Energy labelling seasonal space efficiency GCV 94 N/A ErP efficiency rating A N/A GAS Standard fuel NG Optional fuel adjustment – see installation manual LPG Max gas consumption NG m3/h 6.6 9.1 11.7 Max gas consumption LPG kg/h 2.5 1.5 2.0 Min-max gas inlet pressure NG mbar 17-25 Min-max gas pressure LPG mbar 37-50 Gas connection size BSP inches ¾” FLUE (CONCENTRIC CONNECTION SUPPLIED AS STANDARD) Flue diameter mm I/D 100 Air inlet diameter mm I/D 150 Min-max flue gas flow rate kg/h 21-104 Average flue gas temperature (75/60°C) Residual fan duty PA 28-138 36-178 30-120 100 160 220 TECHNICAL INFORMATION 07 GAS 120 ACE TECHNICAL INFORMATION GAS 120 ACE 65 GAS 120 ACE 90 GAS 120 ACE 115 Water content litres 7.1 10.1 10.1 Hydraulic resistance @ 20°C ΔT mbar 130 140 250 Resistance @ 11°C ΔT mbar 430 463 826 Normal flow rate at 20°C ΔT I/s 0.74 1.01 1.24 Normal flow rate at 11°C ΔT I/s 1.34 1.83 2.26 Minimum flow rate l/hr 290 340 455 HYDRAULICS Condensate connection 25mm OD Connection size BSP 1 ¼” (m) Standard operating temperature °C 20-90 Max operating temperature °C 90 Max water operating pressure bar 4 Min water operating pressure bar 0.8 Min water operating pressure bar open vented* (OV) 0.3 0.5 GENERAL Dry weight (kg) 98 109 600 x 1360 x 605 600 x 1582 x 605 NOx (dry, 0% 0) mg/kWh EN483/15420 29 41 Noise levels dB (A) at 1 metre 40 45 Eco design sound power levels LWA indoors dB 55 Dimensions (WxHxD) (includes flow/return and gas pipework) Standby heat loss kWh/24hr 61 0.114 60 0.119 ELECTRICAL Nominal power supply Power consumption w 230v-1ph 25-92 24-124 Modulating input v DC 0-10 Fuse rating amps 6.3 Controls voltage 24 (4va) Insulation class IP *Open vented option maximum operating temperature 75°C. Note: These figures are correct at time of print. Please refer to the manual for the latest information. IPX1B 34.4-180 SUGGESTED ENGINEERING SPECIFICATION GAS 120 ACE CONSTRUCTION The boiler shall be a floor-standing type condensing boiler. The single piece cast aluminium heat exchanger and other major components are contained within a sealed air box. The boiler casing is complete with a removable front section for maintenance purposes. Electrical and electronic controls are contained within the instrument panel mounted in the hinged top panel and also the electrical housing mounted on the inside of the boiler panel. YDRAULIC, GAS AND H FLUE CONNECTIONS The combined flue gas outlet and combustion air inlet shall be mounted at the top of the boiler, with the flow, return, gas and condensate connections located at the rear. The boiler is suitable for room-sealed or open flue applications. The boiler is designed for central heating and indirect hot water production up to four bar working pressure. The boiler is suitable for use on sealed systems and open vented installations. OPERATION The boiler is complete with a modulating control system that limits the maximum difference in temperature between the heating flow and return, and the maximum speed at which the flow temperature increases. The boiler is complete with a pre-mix burner (NG or LPG) with the gas/air ratio control system controlled internally. An intelligent, advanced boiler control continuously monitors the boiler conditions, varying the heat output to suit the system load. The control is able to react to external negative influences in the rest of the system (flow rates and air/gas supply problems) maintaining boiler output for as long as possible without resorting to a lock out condition. Should a negative effect happen in the system the boiler reduces its output and/or shuts down (shut-off mode), awaiting the negative conditions to return to normal before restarting. The control cannot override the standard flame safety controls. Standard frost protection shall activate below 7°C with stage one activating the system/shunt pump. Stage two shall activate below 3°C with boiler switching on to 10°C flow. CONTROLS The boiler includes a controls package that allows the actual and set values to be read and adjusted on the built-in digital display, which also provides normal operating and fault code indication. The controls come as standard with the following inputs/outputs: • 0-10V input (flow temperature or load control) • DHW temperature input • high-limit lock out • safety/shutdown/release input • low water protection • outside sensor (optional) • external shunt pump control • service report indicator • external system pump control • run and fault indication output • open therm interface • R-Bus. FEATURES • Ultra-low Class 6 NOX <29mg/kWh. • Fully modulating. • Quiet operation <45 dB(A). • Data file for storing fault/run info. • ErP compliant. • Full colour text display. • Premix burner. The boiler meets the requirements of the following EC regulations and directives: • Gas Appliances Regulation (EU) (2016/426) • Pressure Equipment Directive 2014/68/EU • Electromagnetic Compatibility Directive (2014/30/EU) • Low Voltage Directive (2014/35/EU) • Efficiency Directive (92/42/EEC) • uropean Ecodesign Directive (2009/125/EC) E EU Regulation (813/2013) • uropean Labelling Framework Regulation (EU) (2017/1369) E EU Regulation (811/2013). ENGINEERING SPECIFICATION AND DIMENSIONS AND CONNECTIONS 09 GAS 120 ACE DIMENSIONS AND CONNECTIONS 600 150 605 5 145 255 100 132 107 A B C 95 1 240 2 D 92 105 4 E 3 141 F 418 G MW-2000684-03 DIMENSIONS 5 Flue gas pipe Gas 120 Ace 65: Diameter 100/150mm Gas 120 Ace 90: Diameter 100/150mm Gas 120 Ace 115: Diameter 100/150mm D Gas 120 Ace 65: 971mm Gas 120 Ace 90: 1193mm Gas 120 Ace 115: 1193mm Gas inlet (G3/4") A Gas 120 Ace 65: 1340mm Gas 120 Ace 90: 1562mm Gas 120 Ace 115: 1562mm E Gas 120 Ace 65: 410mm Gas 120 Ace 90: 632mm Gas 120 Ace 115: 632mm 3 Heating circuit return (R1"1/4) B Gas 120 Ace 65: 1164mm Gas 120 Ace 90: 1386mm Gas 120 Ace 115: 1386mm F Gas 120 Ace 65: 87mm Gas 120 Ace 90: 303mm Gas 120 Ace 115: 303mm 4 Condensate discharge (DN22) C Gas 120 Ace 65: 1082mm Gas 120 Ace 90: 1304mm Gas 120 Ace 115: 1304mm G Gas 120 Ace 65: 128mm Gas 120 Ace 90: 350mm Gas 120 Ace 115: 350mm 1 Heating circuit flow (R1"1/4) 2 Clear space should be left around the boiler: MAINTENANCE AND SERVICE CLEARANCES 500mm in front of the boiler 500mm above the boiler • 500mm each side of the boiler • 100mm each side of the boiler (in cascade). • • (Facilitates removal of the casing.) The boiler can be located along a partition on one of its sides, provided there is a 500mm space on the opposite side. Allow enough space around the boiler to facilitate accessibility and maintenance. The minimum recommended dimensions are shown in the illustration. 110 0 500 260 A B 0 35 600 0 58 0 50 MW-2000679-02 DIMENSIONS GAS 120 ACE 65 A B GAS 120 ACE 90 GAS 120 ACE 115 500mm 1082mm 1304mm MAINTENANCE AND SERVICE CLEARANCES AND TYPICAL INSTALLATIONS 11 Note: These layouts do not constitute a design. Calculations must be carried out to ensure pipework and pumps are sized to match boiler nominal flows against system design flow requirements. All connections are to the back of the boiler. SINGLE BOILER GAS 120 ACE Flow Return Gas Condensate SINGLE BOILER, DIRECT HOT WATER PRIORITY WITH LOW LOSS HEADER AAV GAS 120 ACE Flow Gas Return Condensate GAS 120 ACE GAS 120 ACE MODULAR/CASCADE BOILER CONFIGURATION AAV Flow Condensate Gas Return TYPICAL INSTALLATIONS ELECTRICAL INSTALLATION GENERAL The Gas 120 Ace is supplied as standard with electronic control and flame ionisation safety controls, with a specially designed microprocessor at the heart of the control system. SPECIFICATIONS ELECTRICAL SUPPLY The Gas 120 Ace must have a permanent 230V – 50Hz single phase supply rated at 6.3 amps. BOILER TEMPERATURE CONTROL The Gas 120 Ace has electronic temperature control with flow and return temperature sensors. The flow temperature can be adjusted between 20 and 90°C. HIGH-LIMIT TEMPERATURE PROTECTION The high-limit temperature protection device switches off and locks out the boiler when the flow temperature exceeds the high-limit set point (adjustable). When the fault is corrected, the boiler can be restarted by using the reset key on the control panel. LOW WATER PROTECTION (FLOW AND CONTENT) The Gas 120 Ace is supplied with low water protection via pressure sensor. By modulating back at the moment, the water flow threatens to fall too low, the boiler is kept operating for as long as possible. In the event of low flow (F/R ΔT > 45°C) the boiler will shut off and not lockout. If the boiler is fired dry it will go to lockout. ELECTRICAL INSTALLATION AND ELECTRICAL CONNECTIONS 13 ELECTRICAL CONNECTIONS The Gas 120 Ace 65/90/115 must have a fixed 230v – 50Hz single phase mains supply. It must be powered by a circuit containing a double pole switch with an opening distance of 3mm. CB-09 PCB KEY THE CB-09 PCB ALLOWS ADDITIONAL INPUTS TO BE CONNECTED AS PER THE TABLE BELOW 6 L N PWM R-Bus BL 1 2 RL 3 Tout 4 - 5 MARKER CONNECTOR DESCRIPTION 1 R-Bus Not used 2 BL Boiler frost protection (active if contact open) 3 RL Release open contact 4 Tout Not used 5 PWM Modulating pump control connection 6 X4 Modulating pump power connection 1 INPUT 2 INPUTS 3 BUS • Flow sensor • Three • OpenTherm • DHW sensor • Heating + MW-2000826-01 SCB-02 • Outside • Safety N L N N L Status A Status B Nc C No Nc C No sensor contact • DHW way valve zone pump pump • Status contact (2x) 0-10 Tdhw Tflow Tout R-Bus • 0-10 - + V slave and Room unit Bus • L-Bus (local bus) • S-Bus (service bus) X1 X4 Status IF-01 CONNECTOR DESCRIPTION 0-10 (input) The 0-10V signal corresponds to a temperature or power set point, depending on the position of the jumpers 0-10 (output) Output signal indicating the boiler's operating mode Status Boiler fault reporting contact output OTm Communication link with the CU-GH-08 PCB 0 + 0 + OTm X5 Nc C No % 0-10 0-10 2 Nc C No 1 OTm 0 + 0 + IF-01 AD-0000054-01 FLUE OPTIONS The Gas 120 Ace boilers have fan assisted flues supplied as standard, with a concentric flue outlet/air inlet connection used for room sealed operation, or for open flue (room ventilated) applications. An optional twin pipe fitting is available for the room sealed CLV system. The concentric system can be supplied for individual boilers for horizontal or vertical installation. Because of the excess fan capacity of the boiler, most flue lengths can be accommodated (depending on the boiler model and actual route taken), which enables installers to position the boiler almost anywhere in the building. Open flue or room ventilated systems can be installed as individual or combined flues and should discharge vertically, with the flue terminating in an optional tapered cone, complete with bird guard. Care needs to be taken when siting the actual discharge point. Please refer to local regulations. FLUE OPTIONS 15 3 4 2 C001246 7 GAS 120 ACE GAS 120 ACE 2 GAS 120 ACE 6 2 GAS 120 ACE 5 GAS 120 ACE GAS 120 ACE GAS 120 ACE 1 GAS 120 ACE GAS 120 ACE TYPICAL FLUE OPTIONS Note: The diagram above showing flue configurations is for classification purposes only. KEY 1 2 OR 3 OR 4 Flue type C13 Air/flue gas connection by means of concentric pipes to a horizontal terminal (so-called forced flue) 5 Flue type C53 Air and flue gas connection separated by means of a bi-flow adapter and single pipes (combustive air taken from outside) Flue type C33 Air/flue gas connection by means of concentric pipes to a vertical terminal (roof outlet) 6 Flue type B23P Chimney connection (combustive air taken from the boiler room) Flue type C33 Air/flue gas connection by concentric pipes in the boiler room and single pipes in the chimney (combustive air in counter current in the chimney) 7 Flue type B23P Cascade installation compulsory accessories: Flue damper Flue type C33 Air/flue gas connection by concentric pipes in the boiler room and single 'flex' in the chimney (combustive air in counter current in the chimney) Note: If further classification is required please refer to a specialist flue contractor. TYPICAL FLUE SYSTEMS CONCENTRIC ROOM-SEALED APPLICATIONS (C13/C33) FLUE OPTION GAS 120 ACE 65 GAS 120 ACE 90 GAS 120 ACE 115 Maximum length O/L using 100/150mm concentric flue C13 9m 8m 5.9m Maximum length O/L using 100/150mm concentric flue C33 11.5m 10m 9.4m CALCULATION DATA – ROOM-SEALED APPLICATIONS O/L O/L 90° Elbow – an equivalent length of 1.9m O/L To suit site requirements 45° Elbow – an equivalent length of 1.2m Inspection Tee – an equivalent length of 3.3m Note: Flue lengths can be extended by using larger diameter flue pipe. For further clarification please consult a flue specialist and the Remeha technical department on 0118 978 3434. O/L O/L O/L To suit site requirements CONVENTIONAL FLUE B23P Birdguard and reduction cone O/L CALCULATION DATA CONVENTIONAL FLUE Maximum length O/L using 100mm single wall flue O/L Birdguard and reduction cone FLUE OPTION GAS 120 ACE 65, 90 & 115 B23P 40m 90° Elbow – an equivalent length of 5m 45° Elbow – an equivalent length of 1.2m Inspection Tee – an equivalent length of 5.3m Note: Flue lengths can be extended by using larger diameter flue pipe. For further clarification please consult a flue specialist and the Remeha technical department on 0118 978 3434. O/L Birdguard FLUE OPTIONS 17 O/L Birdguard and reduction cone CLV SYSTEM C53 CALCULATION DATA – CLV SYSTEM (TWIN PIPE – TWO ZONE) APPLICATIONS Maximum length O/L using 2 x 100mm single wall flue FLUE OPTION GAS 120 ACE 65 GAS 120 ACE 90 GAS 120 ACE 115 C53 23m 17.5m 16m (11m air/ 5m gas) 90° Elbow – an equivalent length of 5m O/L Birdguard 45° Elbow – an equivalent length of 1.2m Inspection Tee – an equivalent length of 5.3m Note: Flue lengths can be extended by using larger diameter flue pipe. For further clarification please consult a flue specialist and the Remeha technical department on 0118 978 3434. The integral flue non-return valve allows for multiple Gas 120 Ace boilers when used on a common flue system. The following table offers flue system sizing guidance, based upon the total heat output and the available chimney height. Please consult a flue specialist or our technical department for any further assistance. Typical cascade flue arrangement, please refer to O&M Manuals and flue specialist for further assistance. Tapered cone c/w bird guard 100mm Boiler connections Note: Connect the boilers to the horizontal header using swept connections. MODULAR FLUE SYSTEMS FLUE OPTIONS 19 FLUE DILUTION SYSTEMS Bellmouth 2 x D + 50 Opening in duct 2 x D D 30 Drain Typical duct entry detail 100mm Boiler connections Note: Please contact a flue specialist for assistance with flue dilution system design. *Typical modular flue dilution system showing the flue break necessary for use on all pre-mix boilers. The flue break prevents the dilution fan affecting the gas/air ratio control system within the boiler. FLUE GUIDELINES Refer to the latest relevant British Standards. REF BS 5440-2: Specification for installation and maintenance of ventilation for gas appliances not exceeding 70kW (1st, 2nd and 3rd family gases). REF BS 5440-1: Specification for installation of gas appliances to chimneys and for maintenance of chimneys not exceeding 70kW (1st, 2nd and 3rd family gases). REF BS 6644: Specification for installation of gas red hot water boilers of rated inputs between 70kW to 1.8MW (net) (2nd and 3rd family gases). REF IGE/UP/10: Installation of flued gas appliances in industrial and commercial premises. It's the responsibility of the installer to install the flues and fluecades to comply with the current regulations and standards. IMPORTANT NOTE All flue terminals and CLV kits are supplied with a condense drain/ siphon – this must be connected within one metre of the boiler flue connection. Any condensate which is able to flow back into the boiler from flue lengths greater than one metre must be discharged via a condense collector and drain system fitted within one metre of the boiler flue connection. Make sure that any flue gas outlet pipe to the boiler has a sufficient gradient (at least 50mm per metre) and there's a sufficient condensate collector. Where boilers have been installed on a common open flue system, condensate collectors and drain systems must be fitted on each individual boiler directly above the boiler flue connection. Condense siphons must be deep-seal water type with the discharge taken to a suitable drain point. Further information regarding flue with dissimilar metals can be found in BS6644 – 2011 Section 6.10.4. Concentric room-sealed flue components should not be mixed with single wall flue components. Flue components are constructed from a white painted metal outer and plastic inner. Flue terminals are painted as detailed in the terminal diagrams. Plume kit external components are aluminium or plastic and are painted black. All flue components are CE approved. Remeha offers a low loss header solution for single boiler applications for use with the Gas 120 Ace Boilers. Fitting a low loss header allows the boiler to maintain the correct flow of water constantly, ensuring maximum reliability and efficiency. These accessories are easily integrated into the boiler. They are supplied with boiler case extension panels which conceal the low loss header arrangement. 500 SINGLE BOILER HYDRAULIC ACCESSORIES MW-IMG0-7718672-01 110 0 500 110 0 260 260 500 500 130 4 108 2 0 0 0 42 600 35 80 0 42 600 35 0 58 5 0 0 50 50 MW-IMG1-7718671-01 MW-IMG1-7718672-01 GAS 120 ACE 65 GAS 120 ACE 90 & 115 SINGLE BOILER HYDRAULIC ACCESSORIES 21 Remeha offers a Plate to Plate Heat Exchanger Kit for single boiler applications for use with the Gas 120 Ace Boilers. Fitting this accessory allows the boiler to maintain the correct flow of water constantly, ensuring maximum reliability and efficiency. These accessories are easily integrated into the boiler. They are supplied with boiler case extension panels which conceal the low loss header arrangement. SINGLE BOILER HYDRAULIC ACCESSORIES MW-IMG0-7718669-01 MW-IMG0-7718669-01 110 0 500 260 500 110 0 500 A 260 0 20 600 35 4 500 0 58 0 50 A MW-IMG1-7718669-01 0 DIMENSIONS GAS 120 ACE 65 A 1082mm 0 42 600 0 58 0 50 35 GAS 120 ACE 90 & 115 1304mm MW-IMG1-7718669-01 MODULAR/ CASCADE OPTIONS Spreading the total required heat output over several boilers in cascade configuration improves reliability and efficiency of the heat provision. 3 4 1 2 MW-IMG2-7723251-01 DIMENSIONS B GAS 120 ACE 65 GAS 120 ACE 90 & 115 1082mm 1304mm Remeha’s ‘Smart Connection Technology’ modular pipework kit has been designed to reduce installation time and simplify the planning of the primary circuit layout, for up to four boilers. SMART CONNECTION TECHNOLOGY The pipework kit comprises a flow and return assembly to each boiler which incorporates a suitably sized circulation pump, safety relief valve set at three bar and isolation valves. Each manifold (one per boiler) simply bolts together at 700mm centres, with a low loss header and connecting/blanking flanges completing the installation. The standard manifold provides connections for both in-line and back-to-back boilers. Simply blank off the connections not used with the caps contained within the kit. The pipework kits have been designed to operate at a minimum 15ºC ΔT. MW-IMG4-7723251-01 MODULAR/CASCADE OPTIONS, SMART TECHNOLOGY, TECHNICAL SUPPORT AND DECLARATION OF COMPLIANCE 23 TECHNICAL SUPPORT From brochures to CAD drawings and BIM files, you can access all the information you need at remeha.co.uk Or call our sales and technical departments on 0118 978 3434. We are always happy to help. We can provide you with: • brochures • CAD files • technical specification sheets • energy-related products directive data • case studies • commissioning • installation manuals • technical information • BIM files • spare parts (part of our after sales service). DECLARATION OF COMPLIANCE We hereby certify that the series of appliances specified herein is in accordance with the standard model described in the EC declaration of compliance, and that it is manufactured and marketed in compliance with the requirements and standards of the following European Directives: • Gas Appliances Regulation (EU) (2016/426) • Pressure Equipment Directive 2014/68/EU • Electromagnetic Compatibility Directive (2014/30/EU) • Low Voltage Directive (2014/35/EU) • Efficiency Directive (92/42/EEC) • uropean Ecodesign Directive (2009/125/EC) E EU Regulation (813/2013) • nergy Labelling Framework Regulation (EU) (2017/1369) E EU Regulation (811/2013). Innovation House 3 Oaklands Business Centre Oaklands Park Wokingham RG41 2FD T 0118 978 3434 E firstname.lastname@example.org W remeha.co.uk Registered address: Baxi Heating UK Ltd Brooks House Coventry Road Warwick CV34 4LL Gas 120 Ace Specification Guide June 1.0 2019 ALL TOGETHER BETTER BAXI HEATING HAS A PORTFOLIO OF SOME OF THE BEST KNOWN AND MOST RESPECTED COMMERCIAL BRANDS IN THE HEATING INDUSTRY ACROSS THE UK AND IRELAND: • REMEHA, • ANDREWS WATER HEATERS, • POTTERTON COMMERCIAL AND • PACKAGED PLANT SOLUTIONS. BAXI HEATING COMMERCIAL BRANDS • REMEHA – ENGINEERING EFFICIENCY SINCE 1935 Reliably engineering high-performance and high-efficiency heating solutions. • ANDREWS WATER HEATERS – BUILT TO PERFORM UK’s No. 1 commercial water heaters of choice for quality and reliability. • POTTERTON COMMERCIAL – TOTALLY DEPENDABLE Heating solutions that customers can rely on and services they can trust. • PACKAGED PLANT SOLUTIONS – INGENUITY BOXED Leading specialists in prefabricated plant rooms from concept to completion.