BENSON OUHA 100 Installation And User Instructions Manual
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BENSON OUHA 100 Installation And User Instructions Manual

Oil fired unit heater range
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BENSON OIL UNIT HEATER
BENSON
2
OIL UNIT HEATER
RANGE
N S T A L L A T I O N C O M M I S S I O N I N G
I
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 AND MAINTENANCE INFORMATION IS AVAILABLE ON SITE
1

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Summary of Contents for BENSON OUHA 100

  • Page 1 BENSON OIL UNIT HEATER BENSON OIL UNIT HEATER RANGE 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...

  • Page 2: Table Of Contents

    BENSON OIL UNIT HEATER Section Contents Page No Compliance Notices Certificates of Conformity General product Information General Requirements Delivery & Pre-installation Checks Warranty Installation Installation Clearances and Mounting Heights Heater Mounting Warm Air Circulation Air Supply Fuel Installation Flue Installation...

  • Page 3: Compliance Notices

    The Benson OUHA ( C ) Range conform to The heaters have been designed, manufactured, assembled, inspected, and the following harmonized standards;...

  • Page 4: Certificates Of Conformity

    The position of the heater relative to the used in the construction or manufacture of supply of fresh air the Benson range of Unit Heaters. The materials selected for use can withstand the f) The position of the heater relative to...

  • Page 5: Warranty

    If any of the points are not satisfied then heating mode contact should be made with the sales office at Benson Heating as soon as possible by g) The heater has been subject to and telephoning 01547 528534. in the case of...

  • Page 6: Installation

    BENSON OIL UNIT HEATER 2.0 Installation Suspended free blowing Unit Heaters are at their most effective when located as close to the working area as possible. However care Note should be exercised to avoid directing the It is a requirement that only qualified and...

  • Page 7: Heater Mounting

    BENSON OIL UNIT HEATER The following clearances in mms must be 2.3 Warm Air Circulation observed The air heater should be positioned to enable *when suspended maximum circulation of discharged warm air within the area to be heated, whilst taking...
  • Page 8 BENSON OIL UNIT HEATER 2.4.1 Heaters installed within the 2.4.2 heated space Heaters installed Within a Plant Room Where heaters are installed within the space Where the heater is installed within a plant to be heated (e.g. not a plant room separate...
  • Page 9 BENSON OIL UNIT HEATER For heaters with a rated input of more than extend to not less than 100mm above the 60 kW — 540 cm plus for each kW of rated bottom of the tank. A non return valve with a...
  • Page 10 BENSON OIL UNIT HEATER Typical Fuel layout I.D. I.D. 10mm Maximum 35.0 100.0 4 metres 30.0 100.0 25.0 100.0 20.0 90.0 15.0 70.0 30.0 20.0 BURNER The pump suction should not exceed a maximum of 4 metres. Beyond this limit gas is released from the oil.
  • Page 11 BENSON OIL UNIT HEATER Caution obstacles which will influence this must be The internal by-pass plug must be removed taken into account, preferably at the design from the burner pump when used in a stage. pressurised ring main application .
  • Page 12 BENSON OIL UNIT HEATER Flue terminals should be fitted on all flues, the make contact with any surfaces liable to be terminal must be of the approved type, and subject to high temperatures or where the have outlet grilles on all sides giving a total insulation of the wiring could be impaired as a free area of at least double that of the flue.

  • Page 13: Commissioning

    BENSON OIL UNIT HEATER (h) Check that there is provision for flue gas (b) Ensure that the oil supply is turned off. sampling and that this sample point can be plugged and sealed after commissioning. (c) If CP2 supplied Select the following...
  • Page 14 * Re-check all readings and calculations. * Adjust burner as per manufacturers (k) Repeat steps 4.2 c,a, instructions. * Consult Benson Heating Technical (l) Repeat steps 4.2 d,e,f, allowing the heater Department. to reach thermal equilibrium. (r) Complete commissioning card and provide...
  • Page 15 BENSON OIL UNIT HEATER (b) If the current drawn is greater than the Additionally, the fan and limit stat has been stated running current, in most probability this factory set, and must not be re-set without will be caused by insufficient static formal consent from the manufacturer.

  • Page 16: Ignition Sequence

    BENSON OIL UNIT HEATER 8.0 Fault Finding No Power Check Isolator Check Fuses Burner Lockout Burner fails to Fan / Limit Thermostat Room Thermostat Check Timer Demand Controls Heat / Ventilate Switch On / Off Switch Fuel Feed Check that the...
  • Page 17 BENSON OIL UNIT HEATER Adjust Air Damper Air / Fuel Mix Ratio Incorrect Check for Air in Fuel Line Burner gives a Too Much Air Check Fuel sparky flame Pressure Check Nozzle Fuel Feed Check Filter Restricted Check Fuel Lines...
  • Page 18 BENSON OIL UNIT HEATER Foreign Matter in Check Burner Fan Motor Worn / Dry Bearing Burner Suction Lift to giving Great excessive Insecure Burner noise Check Burner Water in Fuel Oil Pump Line Fuel Feed Restriction Check for High Adjust W arm Air...

  • Page 19: Wiring Diagrams

    BENSON OIL UNIT HEATER 9.0 Wiring Diagram OUHA 100 - OUHA 140 ON / OFF 33-65-100...
  • Page 20 BENSON OIL UNIT HEATER Wiring Diagram OUHA 200 - OUHA 350 ON / OFF 33-65-106...
  • Page 21 BENSON OIL UNIT HEATER Wiring Diagram OUHA 100 - OUHA 140 HIGH / LOW 33-65-107...
  • Page 22 BENSON OIL UNIT HEATER Wiring Diagram OUHA 200 - OUHA 350 HIGH / LOW 33-65-108...
  • Page 23 BENSON OIL UNIT HEATER Wiring Diagram OUHC 200 - OUHC 350 ON / OFF 33-65-191...
  • Page 24 BENSON OIL UNIT HEATER Remote Connections CP2OU Controller On / Off 33-65-102 CP2OU Controller High / Low 33-65-130...
  • Page 25 BENSON OIL UNIT HEATER Remote Connections CP4 Optimised Control 33-65-131 Remote Connections Less Controls 33-65-132...

  • Page 26: Technical Data

    BENSON OIL UNIT HEATER 10.0 Technical Data MODEL OUH 100 OUH 140 OUH 200 OUH 250 OUH 300 OUH 350 HEAT kW/hr 31.26 39.78 58.61 71.88 87.92 102.5 OUTPUT Btu/hr 106.660 135.725 200.000 245.240 300.000 350.000 HEAT INPUT kW/hr 34.24 44.60...

  • Page 27: Parts List

    BENSON OIL UNIT HEATER 11.0 Parts List DESCRIPTION Fan/Limit Thermostat 28-60-021 28-60-021 28-60-021 28-60-021 28-60-021 28-60-021 Fan/Limit Stat Gasket 20-33-549 20-33-549 20-33-549 20-33-549 20-33-549 20-33-549 Burner Plate Gasket 31-28-080 31-28-080 31-28-080 30-40-156 30-40-156 30-40-156 O/heat Thermostat 28-40-059 28-40-059 28-40-059 28-40-059...
  • Page 28 BENSON OIL UNIT HEATER 12.0 Heater Dimensions Axial Fan...

  • Page 29: Dimensions

    BENSON OIL UNIT HEATER 12.1 Heater Dimensions Centrifugal Fan...
  • Page 30 ISO 9001: 2000. information. (ii) Safety features, data plate, and labelling. All Benson Heating Oil Fired Heaters are CE (iii) The requirement for regular inspection - marked, having been found to satisfy the especially if the heater is within a more...
  • Page 31 BENSON OIL UNIT HEATER 10.5 Shut down procedure (e) Set manual/automatic switch to 'automatic' (a) Follow steps 10.5 (a) and (b), when fan stops turn main electrical isolator off, and (f) Set on/standby switch to 'on' shut oil supply valves (g) Check for the following burner sequence 10.6 Ventilation only...

This manual is also suitable for:

Ouha 140Ouha 300Ouha 350Ouhc seriesOuha 200Ouha 250

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