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BENSON OUHA 100, Installation And User Instructions Manual, Page: 2 / 31

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BENSON OUHA 100 Installation And User Instructions Manual Download Page 2

BENSON OIL UNIT HEATER 

2 

Section 

Contents 

Page No 

1.0 

Compliance Notices 

3 

1.1 

Certificates of Conformity 

4 

1.2 

General product Information 

4 

1.3  

General Requirements 

4 

1.4 

Delivery & Pre-installation Checks 

4 

1.5  

Warranty 

5 

2.0 

Installation 

6 

2.1 

Installation Clearances and Mounting Heights 

6 

2.2 

Heater Mounting 

7 

2.3 

Warm Air Circulation 

7 

2.4 

Air Supply 

7 

3.0 

Fuel  Installation 

9 

4.0 

Flue Installation 

11 

5.0 

Electrical Installation 

12 

 

 

 

6.0 

Commissioning 

12 

6.1 

Ignition Sequence 

13 

 

 

 

7.0 

Servicing 

15 

7.1 

Servicing Procedure 

15 

 

 

 

8.0 

Fault Diagnosis 

16 

 

 

 

9.0 

Wiring Diagrams 

19 

 

 

 

10.0 

Technical Data 

27 

 

 

 

11.0 

Parts Listing 

28 

 

 

 

12.0 

Dimensions 

29 

Summary of Contents for OUHA 100

Page 1: ...N S T A L L A T I O N C O M M I S S I O N I N G S E R V I C I N G U S E R I N S T R U C T I O N S Issue 3 October 2007 PART NO 33 65 190 THIS MANUAL SHOULD BE LEFT WITH THE END USER TO ENSURE SERVICE...

Page 2: ...y 5 2 0 Installation 6 2 1 Installation Clearances and Mounting Heights 6 2 2 Heater Mounting 7 2 3 Warm Air Circulation 7 2 4 Air Supply 7 3 0 Fuel Installation 9 4 0 Flue Installation 11 5 0 Electri...

Page 3: ...part of the information pack It is the responsibility of the installer owner user or hirer of such products supplied by Benson Heating to ensure that they are familiar with the appropriate information...

Page 4: ...or installation contrary to the manufacturers recommendations may constitute a hazard Note To ignore the warning and caution notices and to ignore the advice from the manufacturer on installation com...

Page 5: ...s codes of practice or similar standards d Air flow through the heater is not in accordance with the manufacturers technical specifications e Internal wiring on the heater has been tampered with or Un...

Page 6: ...ective flue system The location must also allow for adequate clearance for the air supply return air circulation oil supply electrical supply whilst also providing good and safe working access Suspend...

Page 7: ...d obstructions Ensure louvres are adjusted outwards and ensure blades are not resonating The air temperature rise on passing the heat exchanger is typically around 340 C A full and unobstructed return...

Page 8: ...2 16m3 h per kW of rated heat input Mechanical ventilation systems where fitted must be provided with safety interlocks to prevent heater operation in the event of airflow failure 2 4 2 Heaters insta...

Page 9: ...of the tank and the fuel feed pipe should extend to not less than 100mm above the bottom of the tank A non return valve with a metal to metal seat should be fitted especially if the return pipe work i...

Page 10: ...ine terminate over the fuel level a non return valve is essential The return line should terminate within the oil tank at the same level as the suction line in this case a non return valve is not requ...

Page 11: ...al is not situated in a high pressure area the proximity of buildings and other obstacles which will influence this must be taken into account preferably at the design stage Provision must be made for...

Page 12: ...rm to the appropriate IEE regulations All heaters are supplied fused and pre wired all must be earthed The Control fuse ratings are detailed on the appliance data plate Warning Ensure that the electri...

Page 13: ...operational details of the burner supplied with the heater as part of the information package is studied prior to commissioning Time intervals within the ignition sequence will vary slightly from one...

Page 14: ...inely adjusted to achieve a CO2 reading of 12 5 0 5 All Unit Heaters are test fired and pre commissioned as part of the manufacturing process if however during on site commissioning the data are found...

Page 15: ...aled and are designed so as to be tamper proof Usually such items do not require servicing and therefore should not be tampered with Failure to comply with this can invalidate any warranty and can als...

Page 16: ...ails to light and Lockout Occurs Fuel Feed Incorrect Check that the Oil Pressure is correct Check that Head of Gravity is Sufficient Check that the suction Lift is not too great two pipe system Check...

Page 17: ...Check for Air in Fuel Line Check Fuel Pressure Check Nozzle Check Filter Check Fuel Lines Check Valves Burner gives a smokey flame Poor Combustion Insufficient Combustion Air Inadequate Flue Draught...

Page 18: ...Air Flow over the Heat Exchanger Check Fan and Motor Assembly Check for no Loose Contacts Limit Control Incorrectly Set Reset to 100C Check Fan and Motor are Secure Check that Fan is not Blocked or Ch...

Page 19: ...BENSON OIL UNIT HEATER 19 9 0 Wiring Diagram OUHA 100 OUHA 140 ON OFF 33 65 100...

Page 20: ...BENSON OIL UNIT HEATER 20 Wiring Diagram OUHA 200 OUHA 350 ON OFF 33 65 106...

Page 21: ...BENSON OIL UNIT HEATER 21 Wiring Diagram OUHA 100 OUHA 140 HIGH LOW 33 65 107...

Page 22: ...BENSON OIL UNIT HEATER 22 Wiring Diagram OUHA 200 OUHA 350 HIGH LOW 33 65 108...

Page 23: ...BENSON OIL UNIT HEATER 23 Wiring Diagram OUHC 200 OUHC 350 ON OFF 33 65 191...

Page 24: ...BENSON OIL UNIT HEATER 24 Remote Connections CP2OU Controller On Off 33 65 102 CP2OU Controller High Low 33 65 130...

Page 25: ...BENSON OIL UNIT HEATER 25 Remote Connections Less Controls 33 65 132 Remote Connections CP4 Optimised Control 33 65 131...

Page 26: ...98 4 45 1 6 7 2 2 0 9 0 2 3 10 4 2 5 11 34 Oil Connection BSP 3 8 3 8 3 8 3 8 3 8 3 8 Air Throw mtrs 21 23 31 37 36 39 Air Flow Axial m3 s ft3 m 0 9 1900 1 02 2120 1 6 3400 1 9 4050 2 44 5180 2 63 55...

Page 27: ...Holder 20 30 061 20 30 061 20 30 061 20 30 061 20 30 061 20 30 061 Sight Glass Gasket 31 28 084 31 28 084 31 28 084 31 28 084 31 28 084 31 28 084 Fuse 1ph 28 07 049 28 07 049 28 07 049 28 07 049 28 0...

Page 28: ...BENSON OIL UNIT HEATER 28 12 0 Heater Dimensions Axial Fan...

Page 29: ...BENSON OIL UNIT HEATER 29 12 1 Heater Dimensions Centrifugal Fan...

Page 30: ...he instruction s can lead to a premature failure or damage being occasioned to the heater or its component parts Warning is used when failure to heed or implement the instruction s can lead not only t...

Page 31: ...fan motor will continue to run until heat dissipation allows the fan and limit stat to shut down the fan Caution Do not use the main electrical isolator to turn off the heater to do so can cause dama...

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