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Summary of Contents for EHC Fusion Comet Series
- Page 1 The COMET Range of Boilers the ultimate solution for central heating InsTallaTIOn & TEChnICal Manual If you require any further assistance: Telephone: 01698 820533 Fax: 01698 825697 E-mail: info@electric-heatingcompany.co.uk or visit our website www.electric-heatingcompany.co.uk...
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Page 2: Page Contents
Page Contents INTRODUCTION PREPARATION INSTALLATION INSTALLATION ELECTRIC BOILER INTERNAL LAYOUT COMMISSIONING INSTALLATION ELECTRICAL CONNECTIONS AND CONTROLS EXTERNAL CONTROL WIRING CONTROL PANNEL CONNECTIONS POWER BOARD - CONNECTION 415V 3N~ 39kW POWER BOARD - CONNECTION 415V 3N~ 14,4 -23 kW 16 POWER BOARD - CONNECTION 240V 4-14.4kW EXTERNAL BOILER WIRING BOILER DIMENSIONS USER INSTRUCTIONS... - Page 3 PREPaRaTIOn Instructions and Building Regulations This appliance must be fitted in accordance with the following instructions. The Local Building Regulations The Building Regulations The Building Standards, (Scotland-consolidated) Regulations. Local water bylaws. British Standards- code of practice Bs En 12828 Heating systems in buildings. Design for water-based heating systems.
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Page 4: Installation
InsTallaTIOn 1. General There must be no direct connection between the boilers central heating system and the main water supply. When mains water is The boiler must be installed by a professional plumber or heating required to fill the system directly, all local water bylaws must be engineer and must be connected to the public low voltage observed, and any connection made must be disconnected after network by a competent person. -
Page 5: Electric Boiler Internal Layout
InsTallaTIOn ElECTRIC BOIlER InTERnal laYOuT [1] - Stainless Steel Heat Exchanger [11] - Automatic Vent [2] - Flow Sensor [12] - Expansion vessel [3] - Pressure Sensor [13] - By-pass Valve [4] - Safety Valve [14] - Magnetic Filter [5] - Circulating Pump PF - Internal „mains” phase connections from the PN connection block [6] - Safety Temperature limiter PN - Incoming ‘mains’ cable connection block [7] - Return connection WP - Electric cable access [8] - Flow connection... - Page 6 COMMIssIOnInG IMPORTanT: TURN ON THE ELECTRICAL POWER SUPPLY TO THE BOILER. MAKE SURE THAT THE PROGRAMMER IS NOT CALLING FOR HEAT AT THIS STAGE! FIll InG ThE hOT WaTER CIRCuT. (If applicable) 1. Check the pressure in the potable vessel is set to 3 Bar. 2.
- Page 7 InsTallaTIOn IF SUPPLIED WITH THE GRUNDFOS UPM3 PUMP 15. start-up / Commissioning 1. Ensure the system is filled with water and correctly vented. 2. Check if the appropriate system installation pressure is reached (see the “TECHNICAL DATA” section) by pressing the down arrow button whilst the control panel is off, the pressure value will be displayed.
- Page 8 InsTallaTIOn Mains Water Supply Temporary Filling Loop Figure 4 GB-031C_f...
- Page 9 Temporary Filling Loop Mains Water Supply Figure 5 GB-031C_f...
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Page 10: Electrical Connections And Controls
For Heating and Hot water installations, we recommend the All pipe-work must be earthed in accordance with the IEE BS7671 use of the TWIN HEAT PACK which includes the EHC ROOM Wiring Regulations. THERMOSTAT & AN EHC 2 CHANNEL PROGRAMMER. - Page 11 ElECTRICal COnnECTIOns anD COnTROls Programmer/stat Connections The boiler PCB has a voltage free connection for the controls (RP) & After the cleansing and protection of the system has been carried out, (na). under no circumstances should 240V be connected to these set the external controls to the customers selected times.
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Page 12: External Control Wiring
EXTERnal COnTROl WIRInG heating Only Wiring (Non Standard Volt Free Switching) Figure 8 GB-031C_f... - Page 13 heating & hot Water Wiring: s Plan (Non Standard Volt Free Switching) Figure 9 -------------------- 230V~10A 50Hz ClassII -15T55 BS6220 FIXED Product: EC10010 Optional 2nd WIRING MAX 1.5mm Description: 16 Way junction box heating zone GB-031C_f...
- Page 14 COnTROl PannEl COnnECTIOns (Volt Free) shower sensor connection (Optional) External Volt Free Call signal (Programmer / Thermostat Figure 10 saFETY nOTE: „RP”, and „na” are signal conductors only. DO nOT COnnECT anY VOlTaGE to these as this will damage the boiler and invalidate the boilers warranty! GB-031C_f...
- Page 15 POWER BOaRD - COnnECTIOn 415V 3n~ 39kW Connection of power board 39kW 415V 3n~. Power supply 230/400V~ Ground Grz 6 G4 G6 PUMP blue GB-031C_f...
- Page 16 POWER BOaRD - COnnECTIOn 415V 3n~ 14,4 -23 kW Connection of power board 14,4 - 23kW 415V 3n~. Power supply 230/400V~ Ground H.e 3 PUMP blue GB-031C_f...
- Page 17 POWER BOaRD - COnnECTIOn 240V 4-14.4kW Connection of power board 4-14.4kW 240V~ Power supply 230/400V~ Ground H.e 3 PUMP blue GB-031C_f...
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Page 18: Boiler Dimensions
EXTERnal BOIlER WIRInG Figure 11 BOIlER DIMEnsIOns Return Inlet Flow Outlet Figure 12 GB-031C_f... -
Page 19: Control Panel
usER InsTRuCTIOns COnTROl PanEl Control Panel Key A - Water pressure indicator (bar) B - Water flow rate indicator (l/min) C - kW indicator D - Water temperature indicator (°C) E - Digital display F - Summer Mode G - Call for Heat H - Pump operation indicator I - Return temperature indicator J - Flow temperature indicator K - Boiler heating indicator Figure 13 InDICaTORs Heat Indicator. - Page 20 Voltage free control connections economically. 2.5 EHC recommends adjusting the pump settings and system Flow Rate to best suit the system design during the installation of the boiler. To check this setting press the...
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Page 21: Fault Finding
FaulT FInDInG symptom Reason Procedure No power to the boiler Check electricity mains power supply The indicators and LCD display on the front panel are off Check the temperature safety cut-out investigate cause Main over heat stat cut-out - possibly fault / return sensors or power board Insufficient water pressure Check water pressure in display panel and increase to 1.5 bar The „A”... -
Page 22: Technical Specifications
TEChnICal sPECIFICaTIOns Fusion Comet Fusion Comet Fusion Comet Fusion Comet Fusion Comet Fusion Comet Fusion Comet Fusion Comet Boiler range 12kW 14.4kW 12kW 14.4kW 22.6kW 38.7kW (EhCCOM6KW) (EhCCOM9KW) (EhCCOM12KW) (EhCCOM15KW) (EhCCOM12KW) (EhCCOM15KW) (EhCCOM23KW) (EhCCOM39KW) Pipe entry from boilers Bottom Bottom Bottom Bottom Bottom... - Page 23 GB-031C_f...
- Page 24 Electric heating Company ltd Unit 40, Block 5 Third Road Blantyre Industrial Estate Blantyre Glasgow G72 0UP Tel: 01698 820533 Fax: 01698 825697 www.electric-heatingcompany.co.uk (Waste Electrical & Electronic Equipment) (applicable in the European union and other European countries with separate collection systems).
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Questions and answers
Pressure keeps falling and stopping the heating from turning on
The pressure in an EHC Series system can fall due to insufficient water pressure. If the pressure is too low, the heating will not turn on. This can be identified by checking the water pressure on the display panel. If the pressure is low, it should be increased to 1.5 bar using the external filling loop.
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