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ELECTRIC COMBINATION BOILER 

  

 

 

(European Patent No: 1757678.  Design Right Protected). 

 

TH6-150U M3, TH9-150U M3, 

TH6-185U M3, TH9-185U M3

 

 

This product is suitable for connection to ~230-240V, 50Hz 

 

INSTRUCTIONS FOR USE, INSTALLATION AND 

SERVICING 

for all models with serial No beginning 6-

 

TO BE LEFT WITH THE USER 

 

The instructions consist of three parts; 

User

Installation

 and 

Servicing

 instructions, which include the guarantee registration 

card.  
 
The instructions are an integral part of the appliance and must, to comply with the current issue of the building, electrical 
regulations and water by-laws, be handed to the user on completion of the installation. 
 

GUARANTEE REGISTRATION 

Thank you for installing a new Thermaflow product in your home. 

 

Thermaflow Ltd appliances, are manufactured to the very highest standards so we are pleased to offer our customers, a 
comprehensive first year guarantee and a second year parts guarantee. 
 
In the instruction envelope is to be found your guarantee registration card, which must be completed and returned to  
Thermaflow Ltd or register your Thermaflow appliance for 1st year guarantee protection by calling the below number. 
 
Our guarantee gives you peace of mind valuable protection against breakdown by covering the cost of- 

 

All replacement parts 

 

All labour charges 

 

All call-out charges 

 

                                                                                                                                  

 

THERMAFLOW LTD 

Nethercroy Road, Croy, Kilsyth, Glasgow, G65 9JF 
 

Customer services 
Tel  

+44 (0) 1236 722 769 

email         [email protected] 
Web 

www.thermaflowheating.co.uk 

 

Issue Number: 2a   Issue date: February 2012 

 

Copyright Notice 

This document contains proprietary information protected by copyright, and this Manual and documentation are copyrighted. All rights are reserved. No part of this 
document may be photocopied or reproduced by mechanical, electronic, or other means in any form without permission from Thermaflow Ltd. 

©

 Copyright Thermaflow Ltd 2006-12 -All rights reserved. 

Summary of Contents for TH6-150U M3

Page 1: ...a comprehensive first year guarantee and a second year parts guarantee In the instruction envelope is to be found your guarantee registration card which must be completed and returned to Thermaflow Lt...

Page 2: ...It is TMV3 rated for Anti Scald purposes The combination boiler is able to provide room heating as part of an under floor or central heating system and domestic hot water direct from the cold water s...

Page 3: ...the occupants and shall be positioned away from any electrical devices The position of discharge pipes Tundish drain valves and motorised valves etc must be positioned away from electrical components...

Page 4: ...y 12 2 1 6 Heating system controls 12 2 2 1 Boiler Position 12 2 2 2 Boilers in a compartment 13 2 2 3 Clearances allow for external primary heat transfer kit 14 2 3 1 General notes 14 2 3 2 Safety va...

Page 5: ...6 Preventing pump seizure in summer 31 3 2 7Checking correct operation of electrical components 31 3 2 8 Low pressure switch 31 3 2 9 Control and high limit manual re set thermostats 31 3 2 12 Checkin...

Page 6: ...3 5 bar and has a volume of 0 5 litres The primary pressure relief valve is set to 300 KPA 3 0 Bar Thermaflow Model Number TH6 150U M3 TH9 150U M3 TH6 185U M3 TH9 185U M3 TH12 185U M3 Primary storage...

Page 7: ...G CERTIFICATION The boiler is tested and certified for safety and performance It is therefore important that no alteration is made to the boiler without permission in writing from Thermaflow Ltd Any a...

Page 8: ...lling the Thermaflow They are as follows 1 Flow and return connections to the heating system are 22mm compression 2 Cold water inlet 22mm compression 3 Hot water outlet 22mm compression 4 Pressure rel...

Page 9: ...THERMAflow Ltd THERMAFLOW ELECTRIC COMBINATION BOILER Tel 0870 850 5207 9 1 c 1a 11 2 3 4a 4b 1b 17a a 13a 18 19 14 13b 16 17b 20 10 10a 10b 8 7 6 21 12 5 15 9 Unit Design Protected by Design Rights...

Page 10: ...7 168 Water Content Domestic Secondary 2 Litres 0 44 Gallons Primary Expansion INTERNAL 15 Litres 3 3 Gallons 17 Litres 3 74 Gallons Secondary Expansion Vessel 0 5 Litres 0 11 Gallons CH Cold Fill Pre...

Page 11: ...utory requirements 2 1 3 DATA The data label is on the front case of the boiler 2 1 4 ELECTRICAL SUPPLY Power supply and wiring The power supply to the premises must meet the minimum requirements of t...

Page 12: ...ed isolator and MCB should be readily accessible and installed at the origin of the supply to the boiler It should be identified as to its use Means of disconnection should be readily accessible and a...

Page 13: ...al requirements for cupboards or compartment design are given in the current issue of BS6798 The doorway opening should be of sufficient size to allow for easy removal of the boiler Where the boiler i...

Page 14: ...exceeds the maximum quoted in table 1 Data an additional expansion vessel should be connected into the system as close as possible to the central heating return connection of the boiler Ref Diagram 2...

Page 15: ...termined by the volume and pressure of the incoming cold water supply and the primary store temperature 2 4 4 Hard water areas In areas where the water is Hard more than 200 mg litre it is recommended...

Page 16: ...The connection for the discharge is made at the bottom side of the safety relief valve This must be extended from the safety relief valve with not less than 15mm O D metal pipe to discharge in a visi...

Page 17: ...ntral heating then a separate 3 amp supply is not required for the controls as the controls are supplied via the 6 amp MCB in the control box marked No 17 on the boiler schematic on page 9 of this ins...

Page 18: ...be taken to supply controls as shown NO NEUTRAL OR EARTHS SHOWN FOR CLARITY Requires 240v 3AMP Supply when using Scottish Power Domestic Economy 2000 tariff LINK REMOVED if E2000 Tariff LOW PRESSURE...

Page 19: ...the Thermaflow boiler Connections onto main wiring terminal on boiler The Off Peak Control allows you to time the boiler to charge during the reduced rate periods on wet electric central heating tari...

Page 20: ...f peak control when using a wet electric tariff other than Domestic Economy 2000 to enable a reduction in running costs IMPORTANT If the boiler is connected to Scottish Power Domestic Economy 2000 tar...

Page 21: ...iagram 5 Standard colours are Brown Live Blue Neutral and the earth should be sleeved with a suitably sized green and yellow earth sleeve Make the earth cable of a greater length so that if the cable...

Page 22: ...AKE SURE THE BOILER AND SYSTEM IS COMPLETELY FULL OF WATER AND ALL AIR IS ELIMINATED BEFORE TURNING ON ANY OF THE POWER SUPPLIES TO THE BOILER Take care not to splash any of the electrical components...

Page 23: ...omatic air eliminator There should be no further need to re pressurise the system after this period If the system requires continuous re pressurisation there may be a leak in the installation 2 7 6 Co...

Page 24: ...CONTINUITY POLARITY SHORT CIRCUIT AND RESISTANCE TO EARTH CHECKS MUST BE REPEATED USING A SUITABLE MULTI METER Type of fault Check No domestic hot water or central heating 230 240V Supply 24HR 230 240...

Page 25: ...1 2 Bar No Yes Increase Pressure Is there continuity through 1st stage and 2nd stage master high limit manual re set safety thermostats No Yes Re set or replace thermostat Is there continuity through...

Page 26: ...alling for heat No Adjust the setting Is temperature above setting on aqua stat Should be set to 30o C No Re check when temperature increases Check thermostat and lock shield Valves on radiators are o...

Page 27: ...of 30 C Is domestic pump operating correctly Are the pump valves in the open position No Yes Open the pump valves If they are open replace the pump Is there circulation through the primary side of th...

Page 28: ...5207 28 Fault Diagnosis E10 or single rate supply R3 LP R1 POWER HL1 HL2 R2 NO POWER LOW WATER PRESSURE HIGH LIMIT 1 TRIPPED E10 HIGH LIMIT 2 TRIPPED E10 OFF PEAK CONTROL IS OFF OR BOILER HAS REACHED...

Page 29: ...ATION BOILER Tel 0870 850 5207 29 Fault Diagnosis E2000 Scottish Power region of Scotland ONLY R3 LP R1 POWER HL1 HL2 R2 NO POWER INTERUPTED SUPPLY E2000 LOW WATER PRESSURE HIGH LIMIT 1 TRIPPED HIGH L...

Page 30: ...iler and open a hot tap Water will run for a few seconds then stop Connect a pressure gauge to the car tyre type valve on the vessel The pressure should register 200 350 KPA 2 0 3 5 Bar Close the hot...

Page 31: ...RMINALS ALL SUPPLY CIRCUITS MUST BE DISCONNECTED 3 2 8 Low pressure switch To check correct operation of the low pressure switch drain some water from the central heating system until the pressure fal...

Page 32: ...il in an over heat condition the fault must be rectified before the appliance is turned back on for use If a failure has occurred contact Thermaflow Ltd for spares and advice 3 2 12 Checking the heati...

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