Summary of Contents for Strom Combi E-Boiler Series
- Page 1 The Strom E-Boiler INSTALLATION GUIDE 2ND ISSUE REMEMBER TO REGISTER WWW.STROMLTD.COM/GUARANTEE THE FUTURE OF HEATING IT’S ALL IN THE DETAILS... www.stromltd.com STROM LIMITED 2020...
- Page 2 INTRODUCTION Please read the whole manual before attempting installation and follow these installation instructions carefully following the correct operating instructions to ensure long life of this Strom Electric Boiler. These instructions must be conserved and given to any new user.
- Page 3 Electric Boilers RELEVANT STANDRARDS This electric boiler must be fitted in accordance with the following: - - The local building regulations - UK building regulations BS EN 12828 Heating systems in buildings: Design for water-based heating systems. BS EN 12831 Heating systems in buildings: Method for calculation of the design heat load BS EN 14336 Heating systems in buildings: Installation and commissioning of water-based heating systems...
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Page 4: Boiler Specification
10mm 3x4mm 3x6mm 3x6mm Max. Heating Pressure 1.5 Bar Min. Heating Pressure 0.5 Bar Max. Flow Temp Min. Flow Temp Heating Connection Size 3/4” Male (We Recommend Flexi Hoses, Not Irons) PRV Connection Size 1/2” Female www.stromltd.com STROM LIMITED 2020... -
Page 5: What's In The Box
Electric Boilers WHATS IN THE BOX? 1. BOILER 2. INTEGRATED WALL MOUNTING BRACKET 3. WALL MOUNTING GUIDE 4. 3 x EXPANDING WALL BOLTS 5. INSTALLATION MANUAL... -
Page 6: Installation Schedule
COMBI BOILER ONLY For combination units ensure that the boiler has a sufficient heat output to provide the correct temperature & flow of water required for the application. If you need help calculating this please contact Strom. 3. VOLTAGE & LOAD CALCULATION. -
Page 7: Post Installation
INSTALLATION 1. COMPLETE SYSTEM PIPING. SEE PAGE 12 2. WALL MOUNT THE BOILER. SEE PAGE 23 SEE PAGE 25 3. CONNECT, FILL & FLUSH BOILER 4. CHECK ALL WATER CONNECTIONS SEE PAGE 28 5. MAKE ELECTRICAL CONNECTION SEE PAGE 29 6. - Page 8 Heating system patented heat exchanger Pressure gauge Thermal cut-outs Pressure sensor (linked to gauge) Heating expansion vessel Pressure & expansion relief valve Temperature sensor for heat flow Heating system replenishing valve Temperature sensor for heat return www.stromltd.com STROM LIMITED 2020...
- Page 9 Electric Boilers COMBI SCHEMATIC Circuit breaker Pressure gauge Power access window Pressure sensor (linked to gauge) Heating system patented heat exchanger Pressure & expansion relief valve Thermal Cut-outs Heating system replenishing valve Heating expansion vessel Thermal Cut-outs Temperature sensor for heat flow Domestic hot water heat exchanger Temperature sensor for heat return Temperature sensor for hot water outlet...
- Page 10 IGNITION The boiler is currently heating up either for heating or hot water. RETURN TEMPERATURE The return temperature is too high. RETURN TEMERATURE The return temperature has reached the temperature differential set by the installer. www.stromltd.com STROM LIMITED 2020...
- Page 11 E VALUE ADMIN MENU lue such as Used only under DECREASE VALUE rature. instruction by Strom. Decreases value such as temperature. PUMP RUNNING While lit solid the pump is running and is performing as expected. FROST PROTECT The boiler is too cold and is entering a defrost cycle in attempt to prevent damage to the boiler.
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Page 12: System Piping
The boiler must be installed by a competent and certified plumber or heating engineer and systems should be designed to meet the current building regulations in force at the time of installation. Strom Limited are not responsible for faulty installations which are performed by unqualified tradespeople. DESIGN NOTES:... - Page 13 Electric Boilers PART L COMPLIANT LAYOUTS HEAT ONLY BOILER PROGRAMMER, ROOM THERMOSTAT & TRV’S - 2 PORT VALVE CONTROL (<150m BOILER 2 PORT 3 PORT WHEEL LOCK THERMASTIC HEAD SHIELD RAD VALVE VALVE VALVE ROOM PROG MULTI JUNCT. WIRING STAT ROOM CHAN CHAN...
- Page 14 ROOM PROG MULTI JUNCT. WIRING STAT ROOM CHAN CHAN CHAN STAT STAT PROG PROG PROG DIAGRAMS PROVIDED AS GUIDANCE ONLY, FINAL DESIGN SHOULD BE DECIDED UPON BY A QUALIFIED PLUMBER INLINE WITH CURRENT PART L GUIDELINES. www.stromltd.com STROM LIMITED 2020...
- Page 15 HEAT ONLY BOILER PROGRAMABLE ROOM THERMOSTAT & TRV’S - 2 PORT VALVE CONTROL (<150m BOILER 2 PORT 3 PORT WHEEL LOCK THERMASTIC HEAD SHIELD RAD VALVE VALVE VALVE ROOM PROG MULTI JUNCT. WIRING STAT ROOM CHAN CHAN CHAN STAT STAT PROG PROG PROG...
- Page 16 ROOM PROG MULTI JUNCT. WIRING STAT ROOM CHAN CHAN CHAN STAT STAT PROG PROG PROG DIAGRAMS PROVIDED AS GUIDANCE ONLY, FINAL DESIGN SHOULD BE DECIDED UPON BY A QUALIFIED PLUMBER INLINE WITH CURRENT PART L GUIDELINES. www.stromltd.com STROM LIMITED 2020...
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Page 17: Combination Boiler
COMBINATION BOILER PROGRAMMER, ROOM THERMOSTAT & TRV’S - 2 PORT VALVE CONTROL (<150m BOILER 2 PORT 3 PORT WHEEL LOCK THERMASTIC HEAD SHIELD RAD VALVE VALVE VALVE ROOM PROG MULTI JUNCT. WIRING STAT ROOM CHAN CHAN CHAN STAT STAT PROG PROG PROG DIAGRAMS PROVIDED AS GUIDANCE ONLY, FINAL DESIGN SHOULD BE DECIDED UPON BY A QUALIFIED... - Page 18 ROOM PROG MULTI JUNCT. WIRING STAT ROOM CHAN CHAN CHAN STAT STAT PROG PROG PROG DIAGRAMS PROVIDED AS GUIDANCE ONLY, FINAL DESIGN SHOULD BE DECIDED UPON BY A QUALIFIED PLUMBER INLINE WITH CURRENT PART L GUIDELINES. www.stromltd.com STROM LIMITED 2020...
- Page 19 HEAT ONLY BOILER PROGRAMMABLE ROOM THERMOSTATS & TRV’S (150m BOILER 2 PORT 3 PORT WHEEL LOCK THERMASTIC HEAD SHIELD RAD VALVE VALVE VALVE ROOM PROG MULTI JUNCT. WIRING STAT ROOM CHAN CHAN CHAN STAT STAT PROG PROG PROG DIAGRAMS PROVIDED AS GUIDANCE ONLY, FINAL DESIGN SHOULD BE DECIDED UPON BY A QUALIFIED PLUMBER INLINE WITH CURRENT PART L GUIDELINES.
- Page 20 ROOM PROG MULTI JUNCT. WIRING STAT ROOM CHAN CHAN CHAN STAT STAT PROG PROG PROG DIAGRAMS PROVIDED AS GUIDANCE ONLY, FINAL DESIGN SHOULD BE DECIDED UPON BY A QUALIFIED PLUMBER INLINE WITH CURRENT PART L GUIDELINES. www.stromltd.com STROM LIMITED 2020...
- Page 21 COMBINATION BOILER PROGRAMMABLE ROOM THERMOSTATS & TRV’S (150m BOILER 2 PORT 3 PORT WHEEL LOCK THERMASTIC HEAD SHIELD RAD VALVE VALVE VALVE ROOM PROG MULTI JUNCT. WIRING STAT ROOM CHAN CHAN CHAN STAT STAT PROG PROG PROG DIAGRAMS PROVIDED AS GUIDANCE ONLY, FINAL DESIGN SHOULD BE DECIDED UPON BY A QUALIFIED PLUMBER INLINE WITH CURRENT PART L GUIDELINES.
- Page 22 ROOM PROG MULTI JUNCT. WIRING STAT ROOM CHAN CHAN CHAN STAT STAT PROG PROG PROG DIAGRAMS PROVIDED AS GUIDANCE ONLY, FINAL DESIGN SHOULD BE DECIDED UPON BY A QUALIFIED PLUMBER INLINE WITH CURRENT PART L GUIDELINES. www.stromltd.com STROM LIMITED 2020...
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Page 23: Wall Mounting The Boiler
In terms of clearance strom recommend at least 100mm from all fixed obstructions on all sides of the boiler. Please ensure that the designated wall for mounting the boiler has the structural integrity to support the unit when full. - Page 24 Hang the boiler from the top three bolts before securing the boiler to the wall using standard fastenings at the bottom. Please make sure that the boiler is now firmly fixed in position and unable to move. Failure to secure the boiler may cause damage to the wall and boiler in the future. www.stromltd.com STROM LIMITED 2020...
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Page 25: Making Connections
Electric Boilers WATER CONNECTIONS MAKING CONNECTIONS: • The connections for flow and return must be carried out according to the colour scheme and labelling marked on the boiler. • The connections for mains water inlet and outlet must be carried out according to the colour scheme and labelling marked on the boiler. -
Page 26: Filling Point
The filling loop should be installed in close vicinity to the boiler or connected to the water replenishing connection. The filling loop should be installed to current water regulations and should be removed after filling and the valves sealed with suitable caps. www.stromltd.com STROM LIMITED 2020... - Page 27 Electric Boilers FILLING & FLUSHING FLUSHING: The system must be flushed to 10% of mains PPM (chloride and otherwise) or lower to ensure that the water system is not detrimental to the lifespan of the boiler. If the boiler is being installed into an existing heating system, a power flush must be carried out on the radiators and pipework to remove any potential debris.
- Page 28 If you are unable to check for leaks in the few hours after installation please drain down and only fill the system again when you have the time to do so. This applies to one circuit on a system boiler and both circuits on a combination boiler. www.stromltd.com STROM LIMITED 2020...
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Page 29: Power Supply
It is essential that the boiler is properly earthed, and the wiring tested to current IEE regulations. The following table shows the specification for the full selection of Strom Boilers, please check carefully your model and read off from the table below. Calculations should always be done to ensure that the information is correct for your circumstances, as variences in installations can change the breaker size and or cable size, for instance voltage varies from property to property and does not necessarily follow any regional variences. -
Page 30: Boiler Wiring
More information can be found on system types on page 11. The following information is provided as a guide only and refers to Strom manufactured heating controls, however you should follow the guidance of the manufacturer when connecting the thermostat to the Strom Boiler. -
Page 31: Checking Electrical Connections
Electric Boilers CHECKING ELECTRICAL CONNECTIONS It is important before powering on the boiler for the first time that all electrical connections are checked, this is not only your own connections but also the factory made ones too. Whilst all factory made connections are tested at the factory it is possible that during transit or installation connections may have come loose. - Page 32 The power button will bring the boiler out of standby mode, but for the time being leave the boiler in this mode so that the boiler settings can be configured. www.stromltd.com STROM LIMITED 2020...
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Page 33: Changing The Settings
Electric Boilers SET THE BOILER PARAMETERS The boiler has 3 key parameters that need to be set in order to make the boiler function correctly: CLOCK The time function displays the Time on the front of the boiler during normal operation, this helps the homeowner to confirm that the programmer has been programmed correctly by letting them see the time the boiler has become activated. - Page 34 Finally now that all the air has been purged from the system check the final pressure reading of the heating circuit, and top up if required. Once set please disconnect the filling loop or water supply to the water replenishment valve, and ensure that all connections are capped off until required again at a future date. www.stromltd.com STROM LIMITED 2020...
- Page 35 Electric Boilers SET DHW FLOW & TEMPERATURE COMBINATION BOILERS ONLY The hot water side of the electrical combination boiler relies on setting the correct flow rate of water going in to the unit, if the water going in to the unit is too fast then the unit will be unable to cope with the demand and the water will come out cold.
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Page 36: Heating Test
Give the boiler a few minutes to reach temperature. Check that the tap is ouputting water at the correct temperature, if not please refer to setting the hot water flow and temperature on page 35. Close the hot water tap to complete testing. www.stromltd.com STROM LIMITED 2020... - Page 37 Electric Boilers PLUMBERS CHECKLIST PLUMBER TO COMPLETE... COMPANY NAME: PLUMBERS NAME: COMPANY ADDRESS: COMPANY TELEPHONE: DATE OF INSTALLATION: PRODUCT CODE: WAS THIS A EXISTING INSTALL OR NEW INSTALL? EXISTING NEW INSTALL HOW MANY HEATING ZONES ARE INSTALLED? HAS THE FILLING LOOP BEEN REMOVED & CAPPED OFF? WAS AN ABV FITTED? AT WHAT SETTING? SETTING: WHAT IS THE HEATING PRESSURE SET AT?
- Page 38 BY SIGNING YOU AGREE THAT YOU HAVE INSTALLED THE BOILER IN ACCORDANCE WITH THIS MANUAL AND THAT THE BOILER IS WORKING AS INTENDED WITHOUT ANY LEAKS AND ALL INSTALLER MADE AND FACTORY MADE CONNECTIONS HAVE BEEN CHECKED. SIGNED: DATE: www.stromltd.com STROM LIMITED 2020...
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Page 39: Fault Finding
Check the wiring and reseat outlet temperature sensor & PCB connection if loose. Faulty temperature sensor for heating Call Strom on 0333 344 24 74 outlet. Loose connection between the heating Check the wiring and reseat return temperature sensor & PCB connection if loose. - Page 40 FAULT FINDING Please check pump speed, air locks, Poor water circulation autobypass valve setting. Faulty Temperature Sensor Call Strom on 0333 344 24 74 Check both ends of all pcb Loose PCB Connection connections are fitted correctly and sat in firmly.
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Page 41: Boiler Maintenance
Electric Boilers BOILER MAINTENANCE Strom electric boilers do not require particular maintenance other than the following: The heating system must be filled and maintained when the water is cold, between a pressure of 1 – 1.5 bar. Frequent refilling of the system can cause scaling, corrosion and damage to a heating system and should be avoided wherever possible. Regular pressure loss could be indicative of a leak within the system and should be investigated. -
Page 42: Warranty Information
All Strom products are supplied in accordance with standard Terms & Conditions (available on request or via our website). This Policy also applies in addition to our terms and conditions to any Strom Electric Boilers and by fitting this product you are agreeing to be bound by these Terms & Conditions and this Policy. This Policy sets out the Warranty Period and exclusions which apply to Electric Boilers, for other products please see our website or their corresponding manuals. -
Page 43: Terms And Conditions
Buyer in respect of any one or more installments shall not entitle the Buyer to treat 7.6 If the Company fails to deliver the Goods for any reason other than any cause “Company” means Strom Limited. the Contract as a whole as repudiated beyond the Company’s reasonable control or the Buyer’s fault then the Company... - Page 44 INSTALLATION GUIDE THE FUTURE OF HEATING IT’S ALL IN THE DETAILS... www.stromltd.com STROM LIMITED 2020...
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