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BENSON OIL UNIT HEATER 

12 

Flue terminals should be fitted on all flues, the 

terminal must be of the approved type, and 

have outlet grilles on all sides giving a total 

free area of at least double that of the flue. 

 

Caution  

It is imperative that the flue should be properly 

sealed where it passes through the roof, this 

can best be achieved by using the approved 

method of roof flashing plate and cravat. 

Note  

It should be noted that claims made under 

warranty and attributed to the ingress of water 

may not be considered especially if an 

approved method of sealing has not been 

used, or if the design of the flue has not made 

provision for possible condensation problems. 

 

5.0 Electrical supply

 

 

Wiring external to the unit heater must be 

installed in accordance with any Local, 

National, and European regulations, as well 

as meeting the appropriate requirements of 

IEE regulations. 

The  means  of  connection  to  the  main 

electrical  supply  must  allow  for  complete 

electrical  isolation  of  the  heater,  the  supply 

should only be used to serve the heater itself 

and no other plant or equipment. The position 

of  the  isolation  switch  must  be  such  that  it  is 

adjacent to the heater and easily accessible at 

all  times.  In  addition,  the  isolator  itself  must 

have  a  contact  separation  of  not  less  than 

3mm. (as per BS5991 clause 20.2).  

 

All connections must be checked to ensure 

that they are secure, and free from corrosion.  

Terminals and connections should also be 

checked to ensure that no stray strands are 

bridging terminals.  

Electrical continuity should also be checked 

 

Cables,  conduit,  and  fittings  that  are  used  to 

make the connection between the isolator and 

the  heater  must  conform  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  electric  and  oil  supplies  are 

turned off before any electrical work is carried 

out  on  the  heater.  Ensure  that  wiring  cannot 

make  contact  with  any  surfaces  liable  to  be 

subject  to  high  temperatures  or  where  the 

insulation of the wiring could be impaired as a 

result of such contact

.  

 

Final connections for any additional external 

controls must be completed on site, and must 

be carried out according to IEE regulations. 

Separate user information is provided for the 

time control unit and the burner, and forms 

part of the product information pack which 

accompanies every heater when despatched. 

 

Caution  

The main electrical supply must not be 

switched off or disconnected as a method for 

stopping the heater ,the exception to this is in 

an emergency,  

or during servicing when the controls must be 

completed on site and the heat exchanger has  

been allowed to cool sufficiently to prevent 

any damage from occurring , Claims will not 

be considered if they have resulted from 

incorrect wiring or the incorrect use of the 

heater       

 

Always ensure that the appropriate 

personal protective equipment is used. 

 

6.0 Commissioning – Pre test 

 

Check to ensure electrical safety, and inspect 

and check the oil installation, testing for leaks. 

 

(a) Ensure that the electrical supply is turned 

off. 

 

(b) Ensure that the oil supply is turned off. 

 

(c) Check that all panels and fasteners are 

secure and in place. 

 

(d) Check that the heater is installed correctly 

and that the support is adequate. 

 

(e) Ensure that warm air delivery outlets are 

open. 

 

(f) Check that fan is free to rotate and the 

guards are in place. 

 

(g) Ensure that the flue is secure, adequately 

supported, and that the various joints are 

properly sealed. 

 

Содержание OUHA 100

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

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

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

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

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

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

Страница 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...

Страница 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...

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

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

Страница 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...

Страница 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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