Dormont Flexible Gas Hose Installation and Operating Instructions
Contents
1. 7 Warning The quick disconnect coupling must be fitted so that the gas enters the female half valved of the coupling and exits the male nipple half Follow the gas flow direction arrows permanently marked Appliance on the coupling Er APPLIANCE SIDE 8 In order to achieve correct curvature of gas hose it may be necessary to fit View from above a 90 degree elbow to the appliance connection point E fig 1 Apply appropriate thread jointing compound and tighten into position required 9 End fittings are supplied bonded into the ends of the Dormont gas hose Apply appropriate thread jointing compound to the end fitting threads and wind the end fitting gas hose D assembly into the appliance connection point E 10 Ensure that the gas supply and all the appliance control knobs are turned off before connecting to the gas supply GAS SUPPLY INSTALLATION SIDE 11 Separate the female half of the quick disconnect coupling B from the male nipple half C that is bonded into the end of the gas hose 12 Apply appropriate thread jointing compound and thread the female half of the quick disconnect coupling onto the supply pipe from the gas isolation valve A Tighten into position 13 Connect the quick disconnect nipple C into the quick disconnect female B 14 On completion the final assembly shall be tested for leaks at all joints Leak test in accordance with accepted procedures Leak test solutions can cause corrosi2. A B149 1 Natural Gas and Propane Installation Code Association Royale Des Gaziers Belges Societe Technique De UIndustrie Du Gaz En Belgique A S B L Test Reports LDG 95 2166 2170 December 1995 STANDARDS AUSTRALIA Ej AS 1869 1991 Hose and hose assemblies for liquefied petroleum gases LPG natural gas and town gas Type 2 AS1869 B WP7kPa 1650 12 5 mm 1675 19 mm 16100 25 mm 16125 31 mm 15019001 OG KM39643 Installation Correct Incorrect Examples Restraining Device Installation Instructions The restraining device must always be connected when the appliance is in service Installation of the restraining device must be in accordance with BS 6173 INCORRECT CORRECT Q D AT APPLIANCE END Q D AT SUPPLY END Refer to figure 3 8 A Staple Bracket B Plastic Wall Plugs C 12 1 Screws 1 The restraining device must be installed parallel for ol and in line with the gas hose Lo Ao i f 2 Attach the staple bracket A securely to the wall using the plastic wall plugs B and screws C supplied or an appropriate alternative D Hex Nut E Washers 2 F Eye Bolt x 3 Locate a sufficiently strong part of the rear appliance G Nylon Lock Nut E Device frame Carefully drill a 5mm diameter hole taking care BA nap hooks not to damage internal appliance components O KONS INCORRECT 4 Thread hex nut D and washer j E onto the eye bolt F Slide the eye fi bo
3. dry thoroughly 4 Contact with sharp objects wiring etc and surfaces at temperatures in excess of 105 degrees celsius shall be avoided 5 Bending and flexing of hoses should be limited to movement required to carefully push and pull appliance into and out of position for cleaning and maintenance Gas hoses are for use with Ist 2nd and 3rd family gas operating at a pressure not in excess of 5Ombar End fittings are bonded into the ends of the gas hose and no attempt should be made to remove them Once fitted gas hoses must not be reused on another appliance or at another location WARNING THE HOSE ASSEMBLY MUST BE FITTED SO THAT GAS ENTERS THE FEMALE HALF OF THE QUICK DISCONNECT COUPLING AND EXITS THE MALE NIPPLE HALF DIRECTION ARROWS ARE PERMANENTLY MARKED ON THE QUICK DISCONNECT COUPLING eC wo nN 10 Never insert screwdrivers probes etc into the quick disconnect coupling This will damage the valve assembly 11 Never allow the gas hose to be kinked twisted torqued or pinched when installed 12 Ensure that only the restraining device supplied with the Dormont hose is fitted The restraining device must be fitted at all times when the appliance is in use and should be inspected as part of the regular maintenance and safety procedures 13 Use only one gas hose per appliance 14 For installations where greater mobility is required Dormont SwivelMAX gas hose assemblies are recommended 15 Quick disconnect cou
4. Recommended Operating Instructions Cleaning Behind Equipment I Disconnecting the gas hose 1 Turn the control knobs of the appliance to the off position 2 Carefully pull the appliance away from the wall stopping when the restraining device cable is taut 3 Turn off the gas supply at the local gas isolation valve Turn off the electrical supply and unplug any electrical leads 4 Pull back the sleeve on the female half of the quick disconnect coupling and withdraw the nipple which is connected to the gas hose Do not allow the gas hose to drop onto the floor which may damage the hose Protect both halves of the quick disconnect coupling 5 Unclip the restraining device at one end 6 Carefully move the appliance away from the wall 7 Carry out the cleaning process making sure no cleaning solution or foreign substance comes into contact with either half of the quick disconnect coupling or the gas hose II Reconnecting the gas hose 1 Ensure that the appliance control knobs and the local gas isolation valve are turned off Reconnect the two halves of the quick disconnect coupling by pushing the nipple into the female half Reattach the restraining device Reconnect any electrical supply cables Turn the local gas isolation valve to the on position Carefully push the appliance back into position ensuring that the gas hose is not twisted or kinked Make sure that the gas hose does not fall u
5. connect ge f ee SwivelIMAX 4 1 Firmly push the quick disconnect nipple gas hose assembly into the Safety Quik body This will allow the outer safety sleeve to return to the original position 2 Turn the blue isolation handle to the on position F _ Equipment in line with gas hose ex Coiled Restrainer Note The valve cannot be turned to the on position until the nipple gas hose is fully attached Installation Instructions efer to figure 1 below Before commencing with the installation carefully read all sections of this instruction booklet including the WARNING section and the installation correct incorrect section Installation work should only be carried out in accordance with BS 6173 by a CORGI registered engineer The accessible manually operated shut off valve shall be installed in accordance with BS 6173 1990 This gas isolation valve A must be in the off position If there is no local gas isolation valve fitted the main gas isolation valve must be turned off Do not commence with installation unless the gas supply is fully isolated Remove the Dormont gas hose and fittings from the bag box p N A w The location of the gas connection point on site in relation to the gas connection point on the appliance can vary greatly It is not possible to illustrate every possible installation combination and these instructions illustrate a few examples The installation engineer must
6. gths other than those given or for hoses fitted with SwivelIMAX fittings or without quick disconnect couplings contact Mechline for advice AVOID FATIGUE MAINTAIN A CONSTANT LOOP DIAMETER Other Gas Hose Installation Products Available From Dormont Maximum Movement Swivel Swivel MAX Design certified for use with Dormont gas hoses only the SwivelMAX is supplied fitted as part of the Dormont gas hose assembly when ordered with an S suffix 2 S suffix denotes double swivel assembly Installation of Swivel MAX Dormont gas hose assemblies should be carried out in the same method as detailed in this booklet Single SwivelMAX 1S Installation Double SwivelMAX 2S Installation DOF Innit The Safety Quik is designed as a combined quick disconnect coupling shut off valve and can be used in place of the female half of the standard quick disconnect coupling Installation should be carried out in the same method as detailed in this booklet How to use Iy Shut Off l To disconnect Valve SFZ Coupling 1 Turn the blue isolation handle to the off position FE horizontal to the gas hose 2 Push the outer safety sleeve up toward the blue handle This will cause the nipple gas hose assembly to disconnect Off position On position Note The nipple gas hose cannot be disconnected until the valve is in the off position Safety Quik Iron Elbow A To re
7. lt through the 5mm drilled hole and place other washer E and nylon lock ue nut G onto the eye bolt on the inside a Xx of the appliance panel frame es Tighten securely ene pe 5 Attach one of the restraining device ee a x ef Q AVOID SHARP BENDS THE CORRECT WAY TO INSTALL METAL HOSE FOR VERTICAL TRAVERSE IS snap hooks H to the staple bracket is WITH A SINGLE NATURAL LOOP AVOID SHARP BENDS THAT STRAIN AND TWIST THE METAL HOSE batt Ey all and the other to the INCORRECT Note The restraining devices are designed to be shorter than the length of the gas hose and can withstand a minimum tensile load of 500kg The restraining device must be fitted to prevent damage to gas hose assembly and must not be attached to gas supply pipes to the gas hose assembly or to any point which is insufficiently anchored l i I l I l l AVOID TWISTING THE HOSE INCORRECT CORRECT BTU Capacities Flow rating BTU 0 55 sp gr natural gas 0 58 mbar pressure drop 37 96 MJ m3 Length mm 1000 mm 1250 mm 1500 mm Hose I D inches 1 2 66 000 59 000 56 000 3 4 152 000 142 000 136 000 PNCORBECE 1 246 000 236 000 214 000 1 1 4 490 000 455 000 430 000 The BTU capacities given here were determined under the test conditions specified in BS669 part 2 1997 The BTU capacities given here are for braided and unbraided gas hoses fitted with standard quick disconnect fittings or Safety Quik For sizes len
8. nder the appliance casters Dormont Engineering Support The Dormont technical department is available to advise on all aspects of gas hose sizing installation and Standards Call 01908 261511 oa SS pormont lt gt MECHLING gt MANUFACTURING COMPANY Developments Ltd 6015 Enterprise Drive Export PA 15632 USA Unit 18 Potters Lane 724 733 4800 FAX 724 733 4808 Kiln Farm Milton Keynes MK11 3HF 1 800 DORMONT 367 6668 Tel 01908 261511 Fax 01908 261522 DM441A Rev 6 05 04 oe Dormont Flexible Gas Hose Installation and Operating Instructions To be left with the operator after installation EKEN REGISTERED KM39643 Dormont Flexible Gas Hose Installation and Operating Instructions WARNING Please read the following instruction booklet carefully Failure to fully comply with the enclosed instructions could result in severe injury or death WARNING 1 The installation MUST BE in compliance with BS 6173 Installation of gas fired catering appliances for use in all types of catering establishments 1st 2nd and 3rd family gases 2 Installation and testing MUST BE carried out by a CORGI approved installation engineer 3 Cleaning solutions and chemicals must not come into contact with any part of the gas hose This includes acids solvents fluxes chlorinated chemicals etc In the event of contact with the gas hose rinse immediately with clean water and
9. on so thoroughly rinsing with water is required Caution A naked flame shall not be used for this purpose 15 When installation of the gas hose is complete carefully push the appliance back into the required operating position Check that the hose is not kinked over bent caught under the appliance casters or touching the floor Ensure that the appliance controls are in the off position before turning on the gas supply
10. pling must be disconnected prior to maximum movement of appliance to avoid over extending the gas hose Whenever the appliance is moved for cleaning or maintenance the instructions contained within this booklet must be followed Design Certifications Certified to BS 669 2 1997 CORGI Technical Bulletin 54 Kitemark License KM39643 Canadian Standards Association a lle C ANSI Z21 24 Connectors For Gas Appliances ANSI Z21 69 Connectors For Moveable Gas Appliances ANSI Z223 1 National Fuel Gas Code Fire Prevention Association N F P A 54 ANSI Z21 15 Manually Operated Gas Valve For Appliances Appliance Connector Valves And Hose End Valves ANSI 221 75 Connectors For Outdoor Gas Appliances and Manufactured Homes ANSI 221 90 Gas Convenience Outlets and Optional Enclosures ANSI 2721 41 Quick Disconnect Devices For Use With Gas Fuel Design certified to ANSI ULL 567 Pipe Connectors For Flammable And Combustible Liquids And LP Gas For Use With Natural Gas And Propane National Sanitation Foundation component Criteria C 2 City of New York MEA 376 92 M and 379 92 M Approved by the Commonwealth of Massachusetts Board of State Examiners of Plumbers and Gas Fitters Anana Q Canadian Standards Association C G A 6 10 Connectors For Gas Appliances CSA 6 16 Connector For Moveable Gas Appliances CANIC G A 6 9 Quick Disconnect Devices For Use With Gas Fuel CAN C G
11. take great care to ensure that the gas hose 1s not kinked twisted or taut when installed and that the end fittings of the gas hose are not subjected to sharp bends The installation shall be such as to avoid excessive flexing bending or vibration in service Please refer to section of this manual for correct and incorrect installations For installation situations where sharp bends are a possibility or are unavoidable Dormont SwivelMAX fittings are recommended 5 It is recommended that the connection point for the hose at the installation end is fixed at 600mm 770mm AFFL and is facing downward This is dependent upon the length of hose to be used and the gas connection position on the appliance The gas outlet to which the hose is to be connected shall be located in the same room as the appliance The gas hose assembly must not be concealed within or run through any wall floor or partition The gas hose must not come into contact with the floor during use Figure 1 A Local gas isolation valve B Female half of quick disconnect coupling C Male nipple half of quick disconnect coupling J F D Dormont gas hose E Connection point into appliance F Appliance G Restraining device r 5 iy T e wt f fiii im 5 Side View Ea Gas Flow Direction I 6 To facilitate moving of the appliance as close to the wall as possible the two ends of the gas hose should be offset from each other refer to figure 2 Sip ee
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