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BENSON HEATING LTD G20 I2H User Instructions

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BENSON CABINET
HEATER
NATURALGAS (G20 I
H)
2
PROPANE GAS (G31 I
P)
3
I 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
July 2010
Issue 11
THIS MANUAL SHOULD BE LEFT WITH THE END USER .
TO ENSURE SERVICE AND MAINTENANCE INFORMATION IS AVAILABLE ON SITE

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Summary of Contents for BENSON HEATING LTD G20 I2H

  • Page 1 BENSON CABINET HEATER NATURALGAS (G20 I PROPANE GAS (G31 I I 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 July 2010 Issue 11...

  • Page 2: Table Of Contents

    CONTENTS Compliance Notices Certificates of Conformity General Product Information General Requirements Delivery & Pre inspection Warranty Location & Positioning Gas Supply Electrical Supply Air Supply Minimum Space Requirements Air Distribution System Flue System Flue Installation Installation Packaging & Siting Flooring Minimum Clearances Assembly Gas Installation &...

  • Page 3: 10.1 Commissioning/Hand Over

    S E C T I O N 2 ~ C O N T E N T S ~ 10.0 Introduction S E C T I O N 1 10.1 Commissioning/hand over 10.2 Servicing 10.3 Start up procedure 1.0 Compliance Notices 10.4 Stop procedure 1.1 Certificates of Conformity 10.5 Shutdown procedure...

  • Page 4: Compliance Notices

    1.0 Compliance notices Where proprietary items are incorporated The Benson Gas fired Cabinet Heaters into Benson Heating products, detailed detailed herewith are manufactured by information and instructions are also Benson Heating Within a strictly controlled provided as part of the information pack. quality environment within the parameters of ISO 9001.

  • Page 5: Certificates Of Conformity

    BS EN 1020 Requirements for non or be used as free blowing units, but each domestic gas fired forced convection air heater must be connected to its own heaters for space heating incorporating a fan individual open flue. to assist transportation of combustion air and/or combustion products.

  • Page 6: Delivery & Pre Inspection

    a) The position of the heater for the optimum 1.5 Warranty efficient distribution and circulation of warm The heater is supplied with a 2 year warranty b) The position of the heater relative to the made up as follows; first year covering parts route of the flue and labour, and second year covering parts c) The position of the heater relative to the...

  • Page 7: Location & Positioning

    j) The manufacturer's recommended minimum service requirements have not Indirect fired heaters must not be located in been complied with hazardous areas, however, it is permissible Note (ii) for the heater to supply air to such areas. All warranty claims must contain the following information to enable processing to The heater must not be installed within an take place;...

  • Page 9: Gas Supply

    2.1 Gas supply - general in the case of a unit wired for a three phase supply, the supply should only be used to The Benson range of gas fired cabinet serve the heater itself and no other plant or heaters are all manufactured and pre-set for equipment.
  • Page 10 2.3.1 Heaters installed within the Minimum Free Area of ventilation opening heated space Model Where heaters are installed within the space High Level Low Level to be heated (I.e. not a plant room or enclosure Combustion air or heater related ventilation None None Will not be required if...
  • Page 11 The table below provides specific data for 2.3.2. Heaters Installed within a Plant each heater model as - 2.3.2.2 Natural Ventilation Openings to Room or Enclosure A plant room means a room housing the Minimum Free Area of heater plant and probably other items of ventilation opening building service plant and would generally Model...

  • Page 12: Minimum Space Requirements

    operation should mechanical air supply fail for any reason 2.3.2.3 Mechanical Ventilation to a  Plant Room or Enclosure The table below provides specific data for Minimum Free Area of each heater model as - ventilation opening Model 2.4 Minimum space requirements High Level Low Level Mechanical...

  • Page 13: Flue System

    feature, a full and unobstructed return air 2.6 Flue system path to the heater(s) must be provided, with It is essential that the products of combustion return air grilles connected by ducting directly are flued to the outside of the building. Each to the return air inlet on the heater.
  • Page 14 If the flue passes through a wall, ceiling, or roof made from combustible material then it has to be sleeved so as to provide a minimum of a 25 mm void between the exterior of the flue and the internal wall of the sleeve.
  • Page 15 Not less than Not less than 600mm 600mm Parapet Greater than 1500mm Flat roof with parapet Not less than 600mm Less than 10 h Less than 10 h Greater than 1500mm Flat roof envelope method Not less than 250mm Structure Structure Greater than 10 h Flat roof where the flue height is more than 10 Heights (H) away from all structures...
  • Page 16 Not less than Not less than 600mm 250mm Flat roof with no parapet Not less than 600mm Structure Less than 1500mm Flat roof with structure close to flue outlet Not less than 600mm Not less than 600mm Not greater than °...

  • Page 17: Flue Installation

    2.7 Flue Installation 3.3 Minimum clearances An integral flue spigot is fitted to all Cabinet The following minimum clearances (in Heaters thereby allowing the flue to connect millimeters) must be observed when directly to the heater. The design of the flue installing the heater.

  • Page 18: Gas Installation/Connection

    3.5 Gas Installation/Connection Warning Always isolate from mains electrical supply Service pipework must terminate at an before commencing work on the heater. approved gas cock, and be adjacent to the Always ensure that the appropriate personal position of the heater. protective equipment is used.

  • Page 19: Heater Control Installation

    To minimise noise levels the registers should Warning be set away from corners, additionally, a good All Cabinet Heaters undergo a rigorous test seal between the register frame and the wall programme prior to being despatched, whilst is important, particularly on high level such a programme does involve pre- positions, if unsightly staining through warm commissioning and setting up the heater to...

  • Page 20: Ignition

    (k) Check that fan and limit stat settings have (b) Ensure that the gas supply is turned off. not been disturbed and are as follows 100/700 800/1000 (c) Select the following switch settings on the Range heater Fan on 60oC Fan on ANALOGUE TYPE Overheat limit -100oC Overheat limit -100...
  • Page 21 Note and then automatically re-lights once the It is strongly recommended that the separate minimum off period has elapsed (Separate manual concerning the operational details of information on the time clock is contained the burner supplied with the heater as part of within the information package supplied with the information package is studied prior to the heater).

  • Page 22: Air Delivery System

    (a) Check that the amount of fan produced Note (iv) air volume is in accordance with the heater All Cabinet Heaters are test fired and pre- specification, if the volume is too great the commissioned as part of the manufacturing fan can be overloaded.

  • Page 23: Servicing

    regular servicing carried out by competent maintenance programme is adopted by the and qualified persons. user. Caution Quarterly Inspection After approximately 100 hours of running, the (a) Visual inspection of the burner tension of the fan belts must be checked to (b) Clean and check ionisation probes ensure that they are correct and that they (c) Check overheat safety is operational...
  • Page 24 Motorised Fan Assembly 100-300 Fan and Motor Assembly 400-700 Fan and Motor Assembly 800-1300...
  • Page 25 Turbulator Positions in Heat Exchanger 200-250-300 Gas Cabinets 13 off Turbulator Positions in Heat Exchanger 400-500 Gas Cabinets 18 off Turbulator Positions in Heat Exchanger 600-700 Gas Cabinets 22 off Turbulator Positions in Heat Exchanger 800-1000 Gas Cabinets 24 off Turbulator Positions in Heat Exchanger 1200-1300 Gas Cabinets 28 off...
  • Page 26 wipes may be used to remove heavy soiling wear or damage, if necessary replace the from the motor casing. pulley as follows. Traces of surplus lubricants spreading from (a) Release tension on belts and remove. the bearings should also be cleaned away. (b) Release the taper locks by slackening the Where motors are fitted with grease nipples securing screws by several complete turns.

  • Page 27: Service Re Commissioning

    Electrical Supply Heat Exchanger All connections must be checked to ensure The heat exchanger requires a visual that they are secure, and free from corrosion. inspection at least once per year, this should Terminals and connections should also be be accompanied by cleaning. checked to ensure that no stray strands are It is recommended that a flue brush and bridging terminals.

  • Page 28: Fault Diagnosis By Flow Chart

    Check On/Off Switch Check Isolator Power Check Fuses Burner fails Check for to Run Lockout Check Thermostat Check Timer Check Air Demand Check Overheat Pressure Switch Check Voltage Check Flame Probe Check Control Check Burner Box and Burner Motor Check Gas Ensure Gas Cock is Ensure start Gas Supply...
  • Page 29 Check Gas Excess Air Check that flue supply Gas CO is as advised Adjust damper to suit Burner Low Gas Check Inlet lights on Check Pressure Gas Pressure start gas Flame but fails to Probe establish Check Main Signal Burner Gas main Pressure flame...

  • Page 30: Wiring Diagrams

    Wiring Diagram 20-45-419 100-300 ON/OFF Riello Gas or Oil Fired Burner SC³-FM 230/50/1ph...
  • Page 31 Wiring Diagram 20-45-421 400-500 ON/OFF Riello Gas or Oil Fired Burner SC³-FM 230/50/1ph...
  • Page 32 Wiring Diagram 20-45-423 200-1000 ON/OFF Riello Gas or Oil Fired Burner SC³-FM 415/50/3ph...
  • Page 33 Wiring Diagram 20-45-420 100-300 ON/OFF Riello Gas or Oil Fired Burner Remote SC³-SZ 230/50/1ph...
  • Page 34 Wiring Diagram 20-45-422 400-500 ON/OFF Riello Gas or Oil Fired Burner Remote SC³-SZ 230/50/1ph...
  • Page 35 Wiring Diagram 20-45-424 200-1000 ON/OFF Riello Gas or Oil Fired Burner Remote SC³-SZ 415/50/3ph...

  • Page 36: Technical Data

    Wiring Diagram 20-45-181 100-300 ON/OFF Riello Gas or Oil Fired Burner Remote CP2 230/50/1ph...
  • Page 37 Wiring Diagram 20-45-182 400-500 ON/OFF Riello Gas or Oil Fired Burner Remote CP2 230/50/1ph...
  • Page 38 Wiring Diagram 20-45-183 200-1000 ON/OFF Riello Gas or Oil Fired Burner Remote CP2 415/50/3ph...

  • Page 39: Cabinet Range Technical Data

    Wiring Diagram 20-45-311 100-300 ON/OFF Riello Gas or Oil Fired Burner Remote CP4 230/50/1ph...
  • Page 40 Wiring Diagram 20-45-312 400-500 ON/OFF Riello Gas or Oil Fired Burner Remote CP4 230/50/1ph...
  • Page 41 Wiring Diagram 20-45-313 400-1000 ON/OFF Riello Gas or Oil Fired Burner Remote CP4 415/50/3ph...
  • Page 42 Wiring Diagram 20-45-439 200-1000 HI/LOW Riello Gas or Oil Fired Burner Remote SC³-MZ 415/50/3ph...

  • Page 44: Parts Listing

    8.0 Technical Data Appliance Type PIN / report no 0063AQ0533 Country Approved Gas Category AT,BG,CH,CY,CZ,DK,EE,ES,FI,GB,GR,HR, IE,IT,IS,LT,LV,NO,PT,RO,SE,SI,SK,TR BE,CZ,NL,FR,DE,IE,IT,ES,CH,PT,GB,SE, SK,SL,PT,PL,TR PL,LU,DE,RO 2E(R)B 2ESi...
  • Page 45 Natural Gas (G20 I ) Cabinet Heater The minimum allowable pre-purge time requires calculating [BS EN1020:1998 clause 6.38]. To do this only Carbon Dioxide CO figure needs to be measured. E.G. on a model 300 the calculated minimum time is = 203.6 / ((100 / CO2) + 1) If the measured CO is 9.7% Then 100 / 9.7 = 10.3...
  • Page 46 ropane (G31 I ) Cabinet Heater The minimum allowable pre-purge time requires calculating [BS EN1020:1998 clause 6.38]. To do this only the Carbon Dioxide CO figure needs to be measured. E.G. on a model 125 the calculated minimum time is = 490.7 / ((300 / CO2) + 2.01) If the measured CO is 11.2% Then 300 / 11.2 = 26.79...
  • Page 47 8.1 Technical Data MODEL HEAT kW/hr 29.16 36.21 43.32 57.96 OUTPUT Btu/hr 99,500 123,500 147,800 197,800 HEAT INPUT KW/hr 35.40 44.09 54.10 70.31 (GROSS) Btu/hr 120,800 150,500 184,500 239,900 NETT EFFICIENCY 91.49 91.21 88.93 91.54 q1 is the heat of the dry products of combustion (% of heat released per unit volume of gas) GROSS EFFICIENCY 82.4 82.2...
  • Page 48 Technical Data MODEL HEAT kW/hr 73.00 86.05 117.02 132.16 OUTPUT Btu/hr 249,000 293,600 399,300 450,900 HEAT INPUT KW/hr 88.83 107.12 142.78 161.23 (GROSS) Btu/hr 303,000 365,500 487,200 550,100 NETT EFFICIENCY 91.26 89.21 91.02 91.03 GROSS EFFICIENCY 82.2 80.3 82.0 82.0 NAT GAS 10.1 13.6...
  • Page 49 Technical Data MODEL HEAT kW/hr 176.59 204.99 234.96 OUTPUT Btu/hr 602,500 699,400 801,700 HEAT INPUT KW/hr 214.22 255.72 285.70 (GROSS) Btu/hr 730,900 872,500 974,800 NETT EFFICIENCY 91.54 90.00 91.07 GROSS EFFICIENCY 82.4 80.2 82.05 NAT GAS 20.2 23.9 27.0 CONSUMPTION 956.5 BURNER TYPE RIELLO...
  • Page 50 Technical Data MODEL 1000 1200 1300 HEAT kW/hr 283.67 349.98 380.45 OUTPUT Btu/hr 967,900 1194,100 1298,100 HEAT INPUT KW/hr 345.88 426.66 470.08 (GROSS) Btu/hr 1180,150 1455,800 1603,900 NETT EFFICIENCY 91.08 91.09 89.88 GROSS EFFICIENCY 80.2 NAT GAS 33.0 40.7 45.8 CONSUMPTION 1168 1437...
  • Page 51 9.0 Reference Information Doc/Ref Title/Subject BS EN 1020 :1998 Non Domestic Gas Fired Forced Convection Air Heaters For Space Heating BS EN 292 Parts 1 and 2; 1992 Safety of Machinery BS EN 60204 Part 1; 1993 Safety of Machinery - Electrical BS EN 60335 Part 1;...
  • Page 52 Parts list DESCRIPTION Stackbox Assy 31-28-078 31-28-078 31-28-078 31-24-074 Flue Box Cover Assy 31-28-115 31-28-115 31-28-115 20-45-094 Fan/Limit Thermostat 28-60-023 28-60-023 28-60-023 28-60-023 Fan/ limit Stat Gasket 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 Pressure Relief Gasket 31-28-080 31-28-080 31-28-080...
  • Page 53 DESCRIPTION Stackbox Assy 31-24-074 31-27-123 31-27-123 Flue Box Cover Assy 20-45-094 20-45-094 20-45-094 Overload 28-11-053 Contactor 28-11-057 Fan/Limit Thermostat 28-60-023 28-60-023 28-60-023 Fan/ limit Stat Gasket 20-33-549 20-33-549 20-33-549 Burner Plate Gasket 30-40-156 30-40-156 31-27-121 Pressure Relief Gasket 31-27-121 31-27-121 31-27-121 Sight Glass 20-31-151...
  • Page 54 DESCRIPTION Stackbox Assy 31-27-123 20-46-307 20-46-307 20-47-425 Flue Box Cover Assy 20-45-094 20-46-310 20-46-310 20-46-310 Overload 28-11-056 28-11-055 28-11-055 28-11-054 Contactor 28-11-057 21-11-057 21-11-057 28-11-057 Fan/Limit Thermostat 28-60-023 28-60-023 28-60-023 28-60-023 Fan/ limit Stat Gasket 20-33-549 20-33-549 20-33-549 20-33-549 Burner Plate Gasket 31-27-121 31-27-121 31-29-046...
  • Page 55 DESCRIPTION 1000 DESCRIPTION 1200 1300 Stackbox Assy 20-47-425 Gas Exit Duct Assy 20-27-090 20-27-090 Gas Exit Duct Assy Flue Box Cover Assy 20-46-310 20-27-092 20-27-092 Overload 28-11-111 Star Delta Starter 28-11-044 28-11-045 Contactor 28-11-057 Fan/Limit Thermostat 28-60-023 Fan/Limit Thermostat 28-60-021 28-60-021 Fan/ limit Stat Gasket 20-33-549...

  • Page 56: Start Up Procedure

    10.1 Commissioning and hand over S E C T I O N 2 Warning B A S I C U S E R As part of the commissioning programme, the commissioning engineer must go through I N S T R U C T I O N S the following with the operator.

  • Page 57: Stop Procedure

    ANALOGUE OPTION 10.6 Ventilation only (d) Ensure On Standby switch ON (e) Ensure heat vent switch is set for ‘heat’ CP4 OPTION (f) Check for the following burner sequence (a) Select Fan / Enter to confirm. interval o p e r a n d ANALOGUE OPTION (b) Set Heat/Ventilate switch to 'ventilate'.
  • Page 60 BENSON HEATING LTD LUDLOW ROAD KNIGHTON POWYS LD7 1LP Telephone +44 (0) 1547 528534 Facsimile +44 (0) 1547 520399 email information@bensonheating.co.uk Web www.bensonheating.com...

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G31 i3p

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