EM RANGE GAS FIRED Benson Heating HEAT EXCHANGE MODULE RANGE Installation Operation & Servicing Manual BENSON HEATING is a Division of Benson Climate Systems Ltd Ludlow Road Knighton Powys LD7 1LP UK Telephone + 44 (0) 1547 528534 - Facsimile + 44 (0) 1547 520399 -1-
EM RANGE GAS FIRED CONTENTS 1,0 1,1 1,2 1,3 Introduction General Product Information Safety Features General Requirements 2,0 2,1 2,2 2,3 2,4 Location & Positioning Gas Supply Electrical Supply Air Supply Flue System 3,0 3,1 3,2 3,3 3,4 3,5 3,6 3,7 Installation Positioning & Siting Flooring & Support Minimum Clearances Flue Installation Gas Installation Electrical Installation EM unit Control Installation 4,0 4,1 4,2 4,3 Commissioning Pre-Test Ignition Hand Over 5,0 5,1 5,2 5,3 Servicing Planned S
EM RANGE GAS FIRED range from 60kW to 700kW, and are suitable for use with natural gas. 1,0 Introduction The Exchange Module range of gas fired process EM units are manufactured by Benson Heating within a strictly controlled quality environment within the parameters of ISO 9001. The EM units within the range have been classed as B23 appliances under BS EN 1020.
EM RANGE GAS FIRED The location chosen for the EM unit must allow for the fitting of an effective flue system, it must also offer adequate clearance for the following; the air handling unit and air supply, return air circulation, gas supply, electrical supply, safe working access to all parts of the AHU and EM unit data plate. Ensure that the electrical supply is in accordance with the information contained on the data plate.
EM RANGE GAS FIRED Position of vent Area of vent direct to outside The means of connection to the main electrical supply must allow for complete electrical isolation of the appliance, furthermore, in the case of units wired for a three phase supply, the supply should only be used to serve the unit and respective air handling system. The position of the isolation switch must be such that it is adjacent to the appliance and easily accessible at all times.
EM RANGE GAS FIRED Not less than 600mm Not less than 600mm Parapet Greater than 1500mm Flat roof with parapet Not less than 600mm H1 H2 Less than 10 h2 Less than 10 h1 Greater than 1500mm Flat roof envelope method H2 Not less than 250mm Structure Structure H1 Greater than 10 h1 2 Flat roof where the flue height is more than 10 Heights (H) away from all structures -6-
EM RANGE GAS FIRED Not less than 600mm Structure Less than 1500mm Flat roof with flue close to parapet Not less than 600mm Not less than 250mm Flat roof with no parapet Not less than 600mm Structure Less than 1500mm Flat roof with structure close to flue outlet -7-
EM RANGE GAS FIRED Not less than 600mm Not less than 600mm Not greater than 45° Pitched roof not greater than 45° Less than 1500mm Not less than 600mm Dormer window Pitched roof chimney within 1.
EM RANGE GAS FIRED Not less than 1000mm Not less than 1000mm Greater than 45° Pitched roof exceeding 45° Termination on ridge Not less than 600mm Less than 45° Pitched roof internal route not exceeding 45° and ridge termination Not less than 600mm Not less than 1000mm Dormer window Pitched roof chimney within 1.5m from dormer window measured horizontal.
EM RANGE GAS FIRED 3,1 Positioning and siting Combustion Chamber Internal Resistance EM60 - EM88 EM117 - EM175 EM235 - EM301 EM375 EM440 EM525 - EM600 EM700 It is advisable that when positioning the appliance the lifting eyes are used, thereby reducing the risk of inadvertent damage. 0.4 mbar 0.6 mbar 0.9 mbar 0.6 mbar 0.9 mbar 0.7 mbar 1.
EM RANGE GAS FIRED 3,9 EM unit Control Installation the EM unit and any other plant reliant upon the supply. All EM units are manufactured with the fan and limit thermostat, air pressure switch, and burner pre-wired and installed.
EM RANGE GAS FIRED can be commissioned. A fan overrun facility must have been programmed into the fan controls so as to allow for residual heat to be dissipated at the end of a heating cycle. (b) Ensure that the gas supply is turned off (c) Check that all panels and fasteners are secure and in place Failure to provide this facility will result in frequent overheat situations which over prolonged periods can compromise the longevity of the EM unit and its controls.
EM RANGE GAS FIRED 4,2 Commissioning - Ignition Warning If burner ignition is not satisfactorily accomplished, commissioning must not proceed until the reason or fault has been identified and rectified, if necessary by reference to the separate burner information or to section 6,0 of this manual. Warning Do not proceed with commissioning unless all the criteria detailed within sections 4,0 and 4,1 have been satisfied.
EM RANGE GAS FIRED • Adjust burner as per manufacturers instructions • Consult Benson Heating Technical Department In order to maintain the efficient operation of the Exchange Module and its accompanying air handling unit it is recommended that the following planned servicing and preventative maintenance programme is adopted by the user.
EM RANGE GAS FIRED checked to ensure that no stray strands are bridging terminals. Electrical continuity should also be checked. (a) Remove brass nuts and cover from heat exchanger end assembly to expose heat exchanger tubes. (b) Remove any accumulated deposits from the tubes by pushing through the full length with a flue brush. (c) The flue brush should be withdrawn so as to pull any deposits back into the bottom of the EM unit and flue box where they can then be removed by using a vacuum cleaner.
EM RANGE GAS FIRED fault diagnostics is contained within the burner manual which is supplied as part of the information pack with each EM unit.
EM RANGE GAS FIRED Check Gas supply Excess Air Check that flue Gas CO is as advised Adjust damper to suit Burner lights on start gas but fails to establish main flame Low Gas Pressure Check Inlet Gas Pressure Signal Check Main Burner Gas Pressure Check Flame Probe Position Check Burner Check Low Flame Switch is On Check Controls Check Control Insufficient air passing over Heat Exchanger Check air to inlet is not restricted Resistance too high Burner starts but excess temperature shuts down t
EM RANGE GAS FIRED 7.0 Wiring Diagrams 20-33-660 EM 175 / 235 / 301 RIELLO RS28.
EM RANGE GAS FIRED 20-33-661 EM 265 / 300 RIELLO RS38.
EM RANGE GAS FIRED 20-33-666 EM 235/301 RIELLO RS28 EM375 RIELLO RS38 (nonstd) HI / LO 230V/3ph/50Hz - 20 -
EM RANGE GAS FIRED 20-33-667 EM 375 RIELLO RS38 EM440 RIELLO RS50 HI / LO 415/3ph/50Hz - 21 -
EM RANGE GAS FIRED 20-33-680 EM235/301 RIELLO RS28M GAS MODULATING 230V/1PH/50Hz - 22 -
EM RANGE GAS FIRED 20-41-210 EM375/ 440/600/700 RIELLO RS38M / 50M / 70M /100M 415/3PH/50Hz Burner supply - 23 -
EM RANGE GAS FIRED 20-41-211 EM525/600 RIELLO RS70 EM700 RIELLO RS100 HI/LO 415/3PH/50Hz - 24 -
EM RANGE GAS FIRED 20-46-157 EM60,88,117,150, RIELLO GS10 / 20 BURNER ON/OFF 230V/1PH/50Hz - 25 -
EM RANGE GAS FIRED 20-46-213 EM60 to 175 RIELLO GS10D /20D GAS FIRED HI/LO 230V/1PH/50Hz - 26 -
EM RANGE GAS FIRED 20-46-374 EM 60-175 RIELLO GS10/GS20M GAS FIRED MODULATING - 27 -
EM RANGE GAS FIRED 8.
EM RANGE GAS FIRED MODEL HEAT OUTPUT HEAT INPUT (GROSS) GAS CONSUMPTION BURNER TYPE BURNER HEAD PRESSURE Mbar (zero resistance cover fitted) MINIMUM GAS INLET PRESSURE HEAD SETTING (zero flue resistance) AIR SHUTTER SET (zero flue resistance) GAS CONNECTION RESISTANCE @ MAXIMUM AIR RESISTANCE @ MINIMUM AIR MAXIMUM AIR VOLUME MINIMUM AIR VOLUME MAXIMUM TEMPERATURE RISE SOUND LEVEL COMBUSTION CHAMBER (press) FLUE RESISTANCE FLUE DIAMETER CONTROLS INPUT ELECTRICAL SUPPLY FUSE RATING (UNIT) RUNNING CURRENT CAB
EM RANGE GAS FIRED MODEL HEAT OUTPUT HEAT INPUT (GROSS) GAS CONSUMPTION BURNER TYPE BURNER HEAD PRESSURE Mbar (zero resistance cover fitted) MINIMUM GAS INLET PRESSURE HEAD SETTING (zero flue resistance) AIR SHUTTER SET (zero flue resistance) GAS CONNECTION RESISTANCE @ MAXIMUM AIR RESISTANCE @ MINIMUM AIR MAXIMUM AIR VOLUME MINIMUM AIR VOLUME MAXIMUM TEMPERATURE RISE SOUND LEVEL COMBUSTION CHAMBER (press) FLUE RESISTANCE FLUE DIAMETER CONTROLS INPUT ELECTRICAL SUPPLY FUSE RATING (UNIT) RUNNING CURRENT CAB
EM RANGE GAS FIRED - 31 -
