Related Manuals for Comtherm PP Series
Summary of Contents for Comtherm PP Series
- Page 1 Installation & Maintenance Manual +44(0) 1905 775 783 www.comtherm.co.uk sales@comtherm.co.uk PP Burner...
- Page 2 Page.15 ………………………………….Fault Finding Guide (Indirect Heaters) Page.16 ..........Parts List (Key) Page.17 ..........Suggested Service Program Page.18 ..........Suggested Service Program Page.19 ..........Burner Service program Page.20 ..........Burner Commissioning Record Page.21 ..........Additional Commissioning Notes Page.22 ………………………………….PP Burner Exploded Diagram Comtherm Ltd Installation & Maintenance Manual...
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Page 3: General Specification
The PP burners utilise the well proven Comtherm PH and PHC burner head and combustion system. The burner system produces a wide flame spread and therefore relatively short flame; this feature makes the burner ideal for applications were chamber length is restricted. -
Page 4: General Description
See pages 16 for key to items referred to throughout this manual. Refer to documents M1, M3, M4, M5, M9 sent with your contract for specific component manufacturers used on this equipment. Comtherm Ltd Page 02 Installation & Maintenance Manual... -
Page 5: Installation
For low-pressure supplies up to 25 mbar (10 w.c), the pressure drop between the meter and the burner inlet should normally not exceed 1mbar (0.4 w.c). For high-pressure supplies, this pressure drop should not exceed 10% of the available gas pressure. Comtherm Ltd Page 03 Installation & Maintenance Manual... - Page 6 10-15, should be completed and any leaks repaired. The burner should be left with the manual shut off valve (item V1) in the closed position until the plant is commissioned by a suitably qualified gas engineer. Comtherm Ltd Page 04 Installation & Maintenance Manual...
- Page 7 High temperature wire (tri-rated or better) should be used for all electrical connections. The electrical connections to the burner shown on diagram M5 should be strictly adhered to. Gas pipe work should not be used as an electrical earth. Comtherm Ltd Page 05 Installation & Maintenance Manual...
- Page 8 S1 and S2. Open the test point downstream of S2 and connect the manometer (valve V2 must be closed); if no pressure builds up within 1.5 minutes then valve S2 is sound. Comtherm Ltd Page 06 Installation & Maintenance Manual...
- Page 9 14. Check that all pressure switches associated with the burner are in the `on’ position calling for heat’ and switch the burner on. It may be necessary to reset the burner lockout fault button. Comtherm Ltd Page 07 Installation & Maintenance Manual...
- Page 10 25. Whilst the burner is operating, block the combustion air supply so that the pressure switch P1 switches to the ‘no air’ position, checking that the burner shuts down. Comtherm Ltd Page 08 Installation & Maintenance Manual...
- Page 11 At no point should the settings of any safety device be altered to overcome changes in process conditions without the burner again being fully commissioned in line with those process conditions. Comtherm Ltd Page 09 Installation & Maintenance Manual...
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Page 12: Fault Finding Guide
Check that the combustion air fan motor is rotating in the correct direction Check that the combustion air fan is running, if not check the overload or circuit breakers Comtherm Ltd Page 10 Installation & Maintenance Manual... - Page 13 Flame sensor not detecting Check sensor for damage or burner locks out before the flame moisture the main valves are Clean flame sensor energised Check flame sensor installation and position Faulty sensor Replace sensor Comtherm Ltd Page 11 Installation & Maintenance Manual...
- Page 14 Identify source of blockage and rectify Flame sensor not detecting Over firing and flame is ‘lifting off’ reset main flame flame firing rate Check flame sensor installation and position Check the main gas pressure governor Comtherm Ltd Page 12 Installation & Maintenance Manual...
- Page 15 ‘lifting off’ reset main flame firing rate Combustion air failure Check flame sensor installation and position Inspect combustion air fan for damage Check fan overloads Check air filter (if fitted) and clean if necessary Comtherm Ltd Page 13 Installation & Maintenance Manual...
- Page 16 Too much gas Check main gas pressure and reset Check gas control valve and reset Check fuel type Combustion air set too low Check air dampers, linkages and air filter (where fitted) Comtherm Ltd Page 14 Installation & Maintenance Manual...
- Page 17 Too much pressure in Check Flue. chamber. Unit Produces Burner turned down too Check the adjustment of the gas condensation. low. control valve. Low process air volume. Check and reset air. Comtherm Ltd Page 15 Installation & Maintenance Manual...
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Page 18: Parts List
Burners, Heaters & Combustions Systems Parts List A1: Flame control unit L5: Indication light – instruments on A2: Flame electrode L6: Indication light – burner fan failure A3: U.V. flame sensor L7: Indication light – burner fan run A4: Valve proving unit L9: indication light –... - Page 19 Check for free movement of the non-return valve flap inside the burner casing. Comtherm Ltd Page 17 Installation & Maintenance Manual...
- Page 20 Small cracks and fishers or slight distortion in the wings would not be detrimental to the operation of the burner. This down time with the burner should also be used to check the integrity and correct operation of safety pressure switches and solenoids. Comtherm Ltd Page 18 Installation & Maintenance Manual...
- Page 21 Burners, Heaters & Combustions Systems Burner Service Program Date of Service Service Company Engineer Name Date of Next Service Comtherm Ltd Page 19 Installation & Maintenance Manual...
- Page 22 Flame Control unit Flame Sensor Safety Pressure Switch Operation Combustion Fan p/sw Process Air p/sw High Gas p/sw Low Gas p/sw Valve Providing p/sw Exhaust p/sw Combustion Analysis – (where applicable) CO:CO Fuel Temperature Comtherm Ltd Page 20 Installation & Maintenance Manual...
- Page 23 Burners, Heaters & Combustions Systems Additional Commissioning Notes Comtherm Ltd Page 21 Installation & Maintenance Manual...
- Page 25 Burners, Heaters & Combustions Systems PP Burner Installation & Maintenance Manual If you have any questions – Call Us On +44(0)1905 775783 Comtherm Ltd, Comenco Works, Union Lane, Droitwich, Worcestershire WR9 9AZ...
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