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BENSON OIL UNIT HEATER 

(a Model is as per order 

 

(b That it is undamaged 

 

(c That it is suitable for the fuel supply 

 

(d That it is suitable for the electrical supply 

 

 

If any of the points are not satisfied then 

contact should be made with the sales office 

at Benson Heating as soon as possible by 

telephoning 01547 528534. in the case of 

claims for damage, this must be reported in 

writing within 24 hours of delivery, in order to 

comply with insurance criteria. 

THE WARRANTY REGISTRATION CARD 

SUPPLIED WITH THE HEATER MUST BE 

COMPLETED AND RETURNED IN THE 

PRE PAID ENVELOPE TO BENSON 

HEATING ON COMPLETION OF 

COMMISSIONING 

Warranty claims made without this 

condition being fulfilled  will not be 

processed 

 

1.5 Warranty 

 

The heater is supplied with a 2 year warranty 

comprising of the following :- 

 

1 year parts and labour  

1 year parts only. 

 

In addition to this there is also a 10 year time 

related warranty on the combustion chamber. 

The warranty commences from the date of 

dispatch from the manufacturer, and is 

subject to the terms detailed within the 

Benson Heating  'conditions of business'. 

The warranty may be invalidated if - 

 

a) The warranty registration and 

commissioning card has not been completed 

and returned to Benson Heating  

 

b) The installation is not in accordance with 

the general requirements of this manual 

 

c) The flue arrangement and air supply for 

the heater are not in accordance with the 

manufacturers recommendations, 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 Unauthorised service/

repairs undertaken 

 

f) The main electrical supply input to the 

heater has been interrupted during the 

heating mode 

 

g) The heater has been subject to and 

affected by the ingress of water in any form 

 

h) The heater is not operated at the rating’s 

laid down in the manufacturers technical 

specifications 

 

i) The heater has not been operated or used 

within the normal scope of its intended 

application 

 

j) The manufacturer's recommended 

minimum service requirements have not 

been complied with 

 

All warranty claims must contain the 

following information to enable 

processing to take place; 

 (1) Heater model 

 (2) Heater serial number 

 (3) Order reference/date of order, together 

with full installation details (name and 

address)  

(4) Details or symptoms of fault  

(5) Installers name and address. 

 

Faulty parts must be returned to the Benson 

Heating Spares Department, the address of 

which is provided at the back of this manual. 

Any such parts will undergo inspection to 

verify the claim. Replacement parts supplied 

prior to this may be charged, and a credit 

supplied upon subsequent validation of the 

warranty claim. 

Consumable items are specifically not 

included within the scope of the warranty. 

 

Notification is required immediately a fault is 

suspected.  

The manufacturer will not accept 

responsibility for any additional damage that 

has been caused, expense incurred, or 

consequential loss resulting from any failure 

of the heater (s) 

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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