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Thank  you  for  purchasing  a  BN  Thermic  product.  Manufactured  to  a  high  standard,  this  product  will,  if  used  according  to  these 
instructions and properly maintained, give you years of trouble free performance. 

To make sure that you have selected the correct heater for your application, please read Section 12 on the back page before 
installation. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

1 .   SA F E T Y   I N ST R U C T I O N S

 

1.1 ELECTRICAL SAFETY

 

WARNING!

 It is the responsibility of the owner and the operator to read, understand and comply with the following: 

 

You  must  check  all  electrical  products,  before  use,  to  ensure  that  they  are  safe.  You  must  inspect  power  cables,  sockets  and  any  other 

connectors for wear or damage. You must ensure that the risk of electric shock is minimised by the installation of appropriate safety devices. 

If in any doubt consult a qualified electrician. 

 

You must also read and understand the following instructions concerning electrical safety.

 

 

The Health & Safety at Work Act 1974 makes owners of electrical appliances responsible for the safe condition of those appliances and the 

safety of the appliance operators. If in any doubt about electrical safety, contact a qualified electrician.  

 

Installation should in accordance with current IEE electrical regulations. 

 

Ensure that the insulation of all the cables on the appliance is undamaged and safe, before connecting it to the power supply. 

 

Ensure that the cables are always protected against short circuit and overload. 

 

Regularly inspect the power supply cables and plugs etc. for wear or damage and check all connections to ensure that none are loose. 

 

Important: Ensure that the voltage marked on the appliance matches the power supply to be used and that a correctly rated fuse is fitted. 

 

DO NOT use worn or damaged cables, plugs or connectors. Immediately have any faulty item repaired or replaced by a qualified electrician. 

 

A  suitable  local  isolating  switch  must  be  provided  in the  electrical  supply  circuit  as  close  as  possible  to  the  air curtain  with  at  least  3mm 

clearance on each pole. 

 

This heater is IP20 rated and is suitable for indoor use only. 

 

The controls and heaters may be fed from a different source and it is essential that all circuit breakers feeding the heating system are isolated 

prior to any work being carried out on any of the heaters in the system. 

 

If there are 2 or more units being used with single controls in the system 400v ac may be present in the control boxes due to supplies being 

taken from different phases. 

 

If you connect the heaters together in a Master / Slave configuration you can only use one RCD (Residual Circuit Device) for all heaters and 

individual MCB’s for each heater. 

 

Do not attach this heater to an extension cord it must be hard wired in position. 

1.2 GENERAL SAFETY INSTRUCTIONS 

  Remove all packaging and store it away from children, check the package and heater for visible damage or tampering. 

  Familiarise yourself with the applications and limitations of the heater. 

  Ensure the heater is in good order and condition both physically and electrically 

before use. If in any doubt, do not use the unit and contact your supplier.

 

  Only use recommended attachments and parts. To use unauthorised parts may 

be dangerous and will invalidate your warranty.

 

  Keep tools and other items away from the heater when it is in use.

 

  Keep children and unauthorised persons away from the heater, as it gets 

hot.

 

  Disconnect  from  mains  and  allow  to  cool  before  attempting  any  cleaning  or 

maintenance.

 

X

  DO NOT

 use in areas where hazardous gases or dusts may be present. 

X

  DO NOT

 locate the heater directly below the power outlet.

 

X

  DO NOT

 disassemble the heater for any reason. This heater must be checked 

by qualified personnel only.

 

X

  DO NOT

 use this heater to perform a task for which it has not been designed.

 

  WARNING! 

Ensure you observe the safety distances and mounting heights 

and there is no possibility of inflammable materials coming into contact. 

 

 

INSTRUCTIONS FOR:- 

INDUSTRIAL SPACE HEATER 

OUH2 Series

 

REGISTER

: PLEASE REGISTER THIS PRODUCT ONLINE TO ACTIVATE YOUR GUARANTEE AT 

 www.

bnthermic

.co.uk 

IMPORTAN

T: PLEASE READ THESE INSTRUCTIONS, NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS, AND CAUTIONS. 

USE THIS PRODUCT CORRECTLY, AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE 
DAMAGE AND/OR PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. 

 

Summary of Contents for OUH2 Series

Page 1: ...or use only The controls and heaters may be fed from a different source and it is essential that all circuit breakers feeding the heating system are isolated prior to any work being carried out on any...

Page 2: ...tside walls along the most exposed part of the building which is normally subjected to the prevailing winds see pictures at bottom of page MULTI FUNCTIONAL BRACKET Using the pictures above and to the...

Page 3: ...ter in mounting position 7 8 or 9 you MUST remove the 2 side panels turn them around 180 and reinstall them Would you also please turn around the front guard so our Logo reads correctly Many Thanks 3...

Page 4: ...een terminals L1 L2 L2 L3 can be found with this instruction leaflet Cable Sizes OUH2 03 3kW Use minimum 1 5mm 3 Core Mains Cable see note above OUH2 05 5kW Use 4mm 3 Core Mains Cable see note above O...

Page 5: ...mote thermostats are used turn up the internal thermostat to full allowing the external thermostat to control the heater RST TP Tamperproof Thermostat Used exactly the same as the RST2 IN but temperat...

Page 6: ...TAT Use 1 0mm 4 core cable Connections Colours for reference only Connect Black wire Terminal 10 of Heater and Terminal 3 on Frost Thermostat Connect Brown Live wire Terminal 11 of Heater and Terminal...

Page 7: ...Earth connection on Control Switch HEATER to THERMOSTAT Connect Black wire Terminal 5 of Heater and Terminal 1 on Thermostat Please note Black wire can be joined in the control switch using a suitabl...

Page 8: ...rminal 1 of Heater and Terminal L on Programmable Timer 230V Live connection Add a Link cable 1mm between Timer L connection and Timer Sin connection Connect Black wire Terminal 2 of Heater and Termin...

Page 9: ...nd still linked as Master Slaves If Using RCD Residual Circuit Device all Heaters connected in a Master Slave arrangement MUST be supplied from the same RCD and not multiple RCD s Multiple MCB s for e...

Page 10: ...nnect Black wire Terminal 6 of Master heater and Terminal 6 of first Slave heater Connect Grey wire Terminal 7 of Master heater and Terminal 7 of first Slave heater Connect Green Yellow wire Terminal...

Page 11: ...g can damage the heater and is not covered by the guarantee 9 TROUBLE SHOOTING AND SOLUTIONS Wall thermostat does not work correctly in a Master Slave set up or single heater Check that you have turne...

Page 12: ...t losses from the entire area you are heating If you are in any doubt please contact BN Thermic and we can carry out a quick check for you Temperature rise OUH2 industrial fan heaters warm a space by...

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