Powrmatic OUH20 User, Installation & Servicing Manual
Suspended oil unit heater industrial & commercial heating systems
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Summary of Contents for Powrmatic OUH20
- Page 1 Doc Ref: M105 Issue 5.4 May 2018 OUH Suspended Oil Unit Heater Industrial & Commercial Heating Systems User, Installation & Servicing Manual + 4 4 ( 0 ) 1 4 6 0 5 3 5 3 5 w w w . p o w m a t i c . c o . u k i n f o @ p o w r m a t i c .
- Page 2 1. The appliance type and serial number. 2. The original commissioning documentation. As much detail as possible on the fault. 3. Your supplier, or installer, will then contact Powrmatic to make a guarantee claim on your behalf. Conditions of Guarantee 1.
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Page 3: Table Of Contents
We appreciate you buying one of our high quality products and know that you have made the best choice. By choosing Powrmatic, you are investing in UK manufacturing & its workforce. We pride ourselves by manufacturing products that provide clean, comfortable and safe working environments worldwide together with the personal &... -
Page 4: User Instructions
User Instructions D) Description of Operation If the heater has not been left operational proceed as follows. Important: The heater must NOT be A) Checks before lighting the Air Heater controlled by switching ON and OFF the main electrical supply to it. The following preliminary checks should be made before lighting the heater(s) 1) Standard Units... - Page 5 Your safety is paramount to us. 1.1 Introduction The Powrmatic OUH Range is a range of oil fired forced draught, closed flue, fanned circulation air heaters having an output range of 20kW to 60kW .
- Page 6 Duties Model High Fire (max) Output Low Fire (min) High Fire (max) 21.70 32.15 49.40 65.57 Input (nett CV) Low Fire (min) 16.40 24.20 33.70 45.17 Volume 0.58 0.82 1.34 Throw OUH F Airflow OUH C Fan Static Standard V/ph/Hz 230/1/50 Supply Optional...
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Page 7: Dimensions
Dimensions OUH F 20 - Axial Fan Model OUH F 20 OUH F 30/45/60 - Axial Fan Model OUH F 30 OUH F 45 OUH F 60 OUH C 20 - Centrifugal Fan Model OUH C 20 page no. 7 of 32 OUH Range Users, Installation &... -
Page 8: Technical Data
Burner Pressure Setting Temp MODEL Type Danfoss p.s.i. no. (mm) °C High Fire 12.41 12.56 84.3 OUH20 RG1 RKD 0.50Gal 60° S Low fire 8.27 12.46 74.6 High Fire 12.07 12.55 63.2 OUH30 RG1 RKD 0.75Gal 60° S Low fire 8.96... - Page 9 Burner Pressure Setting Temp MODEL Type Danfoss p.s.i. no. (mm) °C High Fire 10.0 12.56 84.3 OUH20 RG1 RKD 0.55Gal 45° S Low fire 12.46 74.6 High Fire 10.0 12.55 63.2 OUH30 RG1 RKD 0.85Gal 45° S Low fire 12.58 65.4...
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Page 10: General Requirements
1.3 General Requirements 1.3.1. Related Documents the heater is such that it might suffer external mechanical damage e.g. from overhead cranes, fork lift trucks etc. All OUH heaters comply with the following European it must be suitably protected. Any ducting should be Directives: kept as short and direct as possible having regard to the distribution of the heated air and the max duct resistance... -
Page 11: Installation
1.3.8 Flue System natural or mechanical ventilation is required. These being: Natural Ventilation: Only flue systems supplied through Powrmatic Ltd may be There must be permanent air vents communicating used with OUH units. Several configurations of flue and directly with the outside air, at high level and at low level. - Page 12 900mm of the outlets. Where inter-joist spaces are used as duct routes they should be suitably lined with a fire-resisting material. Ducting Requirements Model Air Volume m³/h Maximum Duct Resistance OUH20 2088 OUH30 2952 OUH45 4320 OUH60 6840 OUH C Air Heater page no.
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Page 13: Fitting The Unit
LHS Clearance (when viewed at front of heater) Top of heater 1000 Rear of heater (dependent on flue system) 2500-3000 OUH20/30F Recommended mounting heights (floor level to underside of unit) OUH45/60F 3000-5000 For multi air heater installations the following minimum distances between units must be observed... - Page 14 (floor level to work to more precisely define the point of air delivery, base of unit) for OUH20 and OUH30 is between 2.5m and and /or provide ducted return air or ducted fresh air inlet.
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Page 15: General Identification Of Items
2.1.5 Oil Connection All units must be earthed. The electrical supply must be run to a point adjacent to the heater and be suitably terminated to provide an isolation point that will prevent The oil pipework length and diameter should be in remote activation of the unit during servicing. -
Page 16: Fitting The Flue
The flue system connects directly into the flue socket on The chimney must be supported independently of the air the top (OUH20) or rear (OUH30 - 60) of the heater. The heater. socket is sized to accept standard sheet metal flue that is secured in place using suitable fasteners. -
Page 17: Electrical Cable Installation
2.4 Electrical Cable Installation 2.4.1 Electrical Connections See the wiring diagram for the heater electrical connections section 2.5 Warning: THIS APPLIANCE MUST BE All units are fully prewired and only require final EARTHED. connections for the incoming mains supply and completion of the control circuit (230V). - Page 18 2.4.4 External Fuses F - Free Blowing Unit C - Centrifugal Unit Running Running Fuse/MCB Rating (A) Model Fuse/MCB Rating (A) Current (A) Current (A) (motor rated Protection Device) OUH20 0.94 OUH30 0.50 4.33 0.50 5.54 OUH45 OUH60 9.76 NOTE:...
- Page 19 Fan only demand (Summer cooling option) (Summer cooling option) LIVE EARTH NEUTRAL 2.4.5.2. Interconnecting Wiring: OUH Electrical Control Panel OUH to Powrmatic MC200 230V SUPPLY TO CONTROLLER Warning: External controls MUST be powered via heater terminal 10, 11 and Earth 9 10 11 12...
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Page 20: Wiring Diagram
2.5 Wiring Diagram RIELLO BURNER LIMIT INTERLOCK HIGH LIMIT INDICATOR Cut mode /RESET link 'B' RELAY FAN/LIMIT STAT 16 17 ºc Do not RELAY remove link 1 2 3 4 5 8 9 10 11 12 13 14 LIVE MAINS SUPPLY EARTH 230v 1ph 50Hz NEUTRAL... -
Page 21: Commissioning And Testing
1.Remove the sample point cover plug from the outlet flue burner instruction booklet. The burners length and insert a CO2 measuring instrument. are specifically adjusted for Powrmatic heaters, only use the settings in these instructions. page no. 21 of 32... - Page 22 Running Running In the event that the premises are not yet occupied turn Current Current off the gas and electricity supplies and leave instructional literature adjacent to gas meter. OUH20/30 C 0.55 4.3A 4.3A OUH45 C 5.5A 8.0A OUH60 C 9.7A...
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Page 23: Servicing
2.7 Servicing WARNING: Always switch off and disconnect 4. Withdraw cable through entry grommet. electricity supply and close the oil service valve before carrying out any servicing 5. Remove the fan and motor assembly complete by work or replacement of failed components. removing the four hexagon headed bolts that secure the fan to the rear panel. - Page 24 At the same time prevent Thermostat settings:- the dial from rotating and push the limit temperature Fan Off: 86°F/30°C Fan On: 122°F/50°C adjuster around to the required setting. Limit: OUH20 239°F/115°C OUH30-60 194°F/90°C 2.7.6.2. Main Axial Fan 1. Undo cover retaining screw 1.
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Page 25: Fault Finding
3.1 Fault Finding ault Cause Action Main burner will not light. Electrical 1. Check electrical supply is ON. 2. Check controls are ON or calling for heat. 3. Burner in lockout 3. Faulty ignition probe/lead/setting. 4. Faulty burner control unit. 5. -
Page 26: List Of Parts
3.2 List of Parts Item Description OUH20 OUH30 OUH45 OUH60 Riello Oil Burner BNR020/030/HILO/OIL BNR045/060/090/HILO/OIL Burner Gasket 141937080 141930806 Nozzle 35 sec 144707500 141522380 141522603 141522612 28 sec 141521014 141522399 141522612 141522619 Oil Filter 141474534 Fire Valve 141474530 Fan & Limit... - Page 27 Item Description OUH20 OUH30 OUH45 OUH60 Flex Oil Line 141956087 Control Box 141979501 141979502 Photocell 141979531 Electrode 142924310 141979541 Speed Gear Pump 141979551 Coil 1 141979561 Coil 2 141979562 Motor 141979571 Fan Impellor 141979581 Capacitor 141979575 Hydraulic Ram 141979591 Main Air Fan...
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Page 28: Oil Conversion
3.3 Oil Conversion 6. Fit replacement nozzle, again by holding the base of the WARNING: Always switch off and disconnect nozzle holder with a spanner whilst tightening nozzle. electricity supply and close the oil service valve before carrying out any servicing 7. - Page 29 Riello Burner Settings - 28sec Oil - Kerosene - Net CV (Hi = 47.00MJ/kg) Maximum Pump Suction = 0.4bar Burner Pressure High Fire Low Fire Nozzle part number MODEL Nozzle Type p.s.i. p.s.i. 141521014 OUH20 0.55 x 45°S 10.0 141522399 OUH30 0.85 x 45°S 10.0 141522612 OUH45 1.25 x 45°S 10.0...
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Page 30: Information Required For Ecodesign (Erp) Directive 2009/125
Appendices Information required for ecodesign (ErP) Directive 2009/125 Model Rated Heat Capacity 16.43 24.22 33.68 45.17 Minimum Heat Capacity High Fire Useful Efficiency Low Fire High Fire 0.47 0.35 0.38 0.60 Low Fire 0.46 0.32 0.38 0.55 Electrical Power Consumption* Standby <0.01 <0.01... - Page 31 Notes page no. 31 of 32 OUH Range Users, Installation & Servicing Instructions Doc Ref M105 issue 5.4 May 2018.
- Page 32 More information is available from our web site on:- http://www.powrmatic.co.uk/products/heating/browse/view/product/ouh-oil-unit-heaters/ HEATING DIVISION Hort Bridge Ilminster, Somerset TA19 9PS Tel: 01460 53535 Fax: 01460 52341 Every effort is made to ensure accuracy at time of going to press. However as part of continued product improvement, we reserve the right to alter specification without prior notice.
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