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Summary of Contents for elco Polywarm-Maxi PWC1-500
- Page 1 Polywarm-Maxi PWC Indirect Hot Water Cylinders PWB Buffer Vessels Models PWC1 - 500, 800, 1000 & 1500 PWC2 - 500, 800, 1000 & 1500 Models PWB - 500, 800, 1000, 1500, 2000, 2500 & 3000 Installation and Operating Instructions Page 1 of 25...
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Page 2: Table Of Contents
Index Section Topic Page No Overview & Regulations ..…..………………………………..…… Technical data & dimensions ………………………………..…… Installation ....…………………………………………..… Connections ……………………………........…..Primary coils circulation ………........………..…. Self cleaning flux …………………........……...…. Immersion heaters …………………........……..Hard water ………………………………………………………...… Unvented systems ………………………………………………..Expansion vessels pre-charge pressure …………...….…... Expansion vessel capacity …………………………..…..…... - Page 3 There are seven models of storage tanks with capacities from 500 - 3000 litres. Controls - external (non Elco supply) devices may be used to control the operation of the system or alternatively the Elco Easy Control panel is designed for simple timed...
- Page 4 Note: - BS6700- The Design, Installation, Testing and Maintenance of Services supplying water for domestic use within buildings. This document has been superseded by BS EN 806 Electrical Standards:- BS 3456 Part 201, EN 60335 Part 1 CP 342-2 Code of practice for centralised hot water supply. Buildings other than individual dwellings.
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Page 5: Technical Data & Dimensions
Technical data & dimensions ITEM DESCRIPTION Polywarm-Maxi PWC1 Indirect Cylinders Drain Domestic cold water inlet Primary circuit return (15) 1/2”BSP tapping for instrumentation Blind inspection flange Primary circuit flow H13 (13) H11(11) ”BSP connection for magnesium anode Connection for immersion (10) H8(8) heater... - Page 6 2.1.2 Dimensions 2.1.3 Performance data Page 6 of 25...
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Page 7: Connections
2.2.1 Polywarm-Maxi PWC2 (twin coil) Indirect Cylinders ITEM DESCRIPTION Drain Domestic cold water inlet Primary circuit return (15) 1/2”BSP tapping for instrumentation Blind inspection flange H14 (14) Primary circuit flow H12(12) H13 (13) 1/2”BSP tapping for instrumentation H11(11) Connection for immersion heater H10(10) H9(9) H8(8) - Page 8 2.2.2 Dimensions handling and drain pipe already fitted. Page 8 of 25...
- Page 9 2.2.3 Performance data Page 9 of 25...
- Page 10 2.3.1 Polywarm-Maxi PWB Buffer Vessels ITEM DESCRIPTION Drain (14) Domestic cold water inlet H17(12) Flow to external heat source H17 ( 11 ) H17(13) Blind inspection flange H16(10) H15 (9) 1/2”BSP tapping for instrumentation Re-circulation 1/2”BSP tapping for instrumentation H7 (8) Connection for immersion H6(7) heater...
- Page 11 2.3.2 Dimensions All other models - Removable soft fleece ‘grips’ on the bottom which allow the use of a forklift when handling and drain pipe already fitted. Page 11 of 25...
- Page 12 2.3.3 Performance data 2.3.4 Unvented kits Page 12 of 25...
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Page 13: Self Cleaning Flux
Installation 3.1 Handling Care should be taken when handling the Polywarm-Maxi cylinders to avoid damage to the outer insulation. Models 800 and larger, are supplied with lifting points on the top of the cylinder and models 1500L and larger are fitted with cutouts in the base support ring to accommodate fork lift truck access. -
Page 14: Hard Water
8 Hard Water In known hard water areas the use of scale prevention measures is recommended. Ensure compatibility with stainless steel material. No warranty is provided for components such as immersion heaters that are damaged through scale build up. 9 Unvented Systems If the installation is to be of the “unvented”... -
Page 15: Safety Relief Valves Discharge Pipes
12 Safety Relief Valve Discharge Pipes It is a requirement of the Building Regulations that any discharge from an unvented system is conveyed safely to a point that is visible but will not constitute a hazard or danger to persons in or about the building. It is the responsibility of the installer to supply and install discharge pipes and suitable tundishes, in accordance with the requirements of the Building Regulations. -
Page 16: Electrical Connections For Optional Immersion Heaters
Operation - the hot water system must be exercised at least every two months to ensure that gas is not allowed to build up in the tank. The system must not be disconnected from the mains electrical supply whilst the tank is full of water as this will compromise the corrosion protection. - Page 17 Figure 16 - Immersion heater wiring diagrams Page ! of !
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Page 18: Typical Installation Schematics
16. Pressure relief valve 3. Strainer 4. Pressure reducing valve 17. Immersion heater 18. Two port motorised valve 5. Expansion vessel (not of Elco supply) 6. Non return valve 7. Expansion relief valve 8. Drain valve 9. Inox Maxi SSC1 10. Re-circulating pump 11. - Page 19 15. Primary heating circuit return 16. Pressure relief valve 17. Immersion heater 18. Two port motorised valve (not of Elco supply) 19. Inox Maxi SSC2 Figure 17.3 - Typical Open Vented Indirect Cylinder Schematic Legend 14. Primary heating circuit flow 1.
- Page 20 14. Primary heating circuit flow 15. Primary heating circuit return 16. Pressure relief valve 17. Immersion heater 18. Two port motorised valve (not of Elco supply) 19. Inox Maxi SSC2 20. Double regulating valve 21. Loading pump 22. Packaged plate heat exchanger set 23.
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Page 21: Commissioning
18 Commissioning If the installation is unvented, before filling the system with water, check the air pressure in the potable water expansion vessel and adjust as necessary to a nominal 3.5bar. If the pressure regulating valve supplied with the unvented kit is an adjustable type, ensure that the setting is limited at a maximum of 3.5bar. -
Page 22: User Instructions
20 Regular Maintenance To ensure safe and continued performance of the water heater it is a requirement that the unit should be regularly maintained and only genuine spare parts from Elco Heating should be used. Maintenance should be carried out at intervals not exceeding 12 months by a competent installer In hard water areas, immersion heaters should be periodically de- scaled. ... -
Page 23: Easy Control Panel
Easy Control Panel For more detailed information refer to the product instruction manual. The panel is suitable for remote mounting or mounting directly onto the cylinder. Description EASY CONTROL is a central controller for domestic hot water production systems. The EASY CONTROL panel makes it simple to programme the temperature of the domestic hot water as required at different times of the day, optimising the comfort of the user with the use of the system at the same time. - Page 24 Wiring Symbol Terminals Device Characteristics INPUTS External Mains Supply EXT line 230 Vac 50 Hz ± 10% FUSE 1 T 15 A cable Internal mains supply INT line 1 – 2 230 Vac 50 Hz ± 10% FUSE 2 T 5 A Range of operation: -50°C ÷...
- Page 25 ELCO UK 3 Juniper West, Fenton Way, Southfields Business Park, Basildon, Essex SS15 6SJ Tel: 01268 547600 Fax: 01268 88250 www.elco.co.uk This publication is issued subject to alteration or withdrawal without notice. The illustrations and specifications are not binding in detail. All offers and sales are subject to the Company's current terms and conditions of sale.
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