CBM Thermocouple safety

Q334 AND Q385 “2000” series PILOT BURNERS INSTRUCTION SHEET Maximum operating temperatures At target tip: Q334A: 815 _C Q385A: 730 _C At orifice assy: 340 _C Recommended thermocouple Q334A pilot burner is designed for use with Q309A and Q335C thermocouple. Q385A pilot burner is designed for use with Q309A thermocouple Recommended pressure adjustment Q385A Type of gas Pressure adjustment Manufactured (I1) Max. Natural (I2H) Max. Natural (I2L) Max. LP (I3) Max. Q334A Accessories To be ordered seperately, see Product Handbook APPLICATION EN2R--9002 Q334A and Q385A non primary aerated target type pilot INSTALLATION burners provide main burner ignition for gas appliances using manufactured, natural or LP gas. IMPORTANT Q334A and Q385 pilot burners are used in conjunction with a Installer must be a trained, experienced service man. Honeywell thermocouple which has to prove the presence of Turn off gas supply before starting installation. pilot flame before main gas is admitted into the appliance. An important requirement for the Q334A and Q385A SPECIFICATIONS pilot burner is that it must be installed carefully. Consult Honeywell application engineers when considering using these devices. Models Subject to change without notice. Printed in the Netherlands. Q334A: non primary aerated large target type pilot burner. Locating pilot burner Q385A: non primary aerated small target type pilot burner. · Position for easy access and observation. Q334A pilot burners are available with three mounting · Position so that pilot flame will not touch adjacent parts or brackets. and with target position K (right handed) or L (left main burner flames. handed). See fig. 4. · Position so that pilot flame will ignite main burner when pilot gas pressure just exceeds safety shut--off pressure. Q385A pilot burners are available with three mounting · Ensure that pilot flame has an ample supply of dust free brackets. and with target position K (right handed), F (straight) air. or L (left handed). See fig. 5. · Do not expose to draughts which will extinguish pilot flame. Q385A pilot burners are provided with a clip for easy · Pilot burner should not extinguish when main burner is mounting of an ignition electrode. switched ON and OFF. Dimensions · Pilot burner shall be mounted in a preferably upright position. Q334A: see fig. 4. Q385A: see fig. 5. Mounting pilot burner Consumption Fix pilot burner to main burner at selected location. Mounting surfaces other than main burner should be avoided as much Q334A: approximately 250 Watt as possible since they may shift, bend or deform due to close Q385A: approximately 100 Watt proximity of main burner. EN1R--9095 0002R5--NE Mounting of ignition electrode (see fig. 1.) · Place tip of ignition electrode between clip and bracket. · Push ignition electrode upwards. · Position electrode tip in the hole on the top of the bracket. · Push ignition electrode further upwards until the thickning passes the hook of the bracket. Remounting of ignition electrode (see fig. 1.) · Push metal clip sidewards. · Pull ignition electrode to disengage. Fig. 1. Mounting of ignition electrode Pilot gas connection (see fig. 2.) · Square off end of tubing, clean, remove burrs and form it. · With orifice assembly and compression fitting in position, insert tubing into target spud until it bottoms and turn compression fitting finger tight. · Hold tubing to prevent turning and tighten compression fitting with a wrench about two turns beyond finger tight for 6 mm tubing and about 3/4 turn beyond finger tight for 4 mm tubing to make a pressure tight joint. CAUTION Fig. 2. Pilot gas connection Do not bend tubing near fitting after tightening as this may result in gas leakage at connection. Mounting of thermocouple (see fig. 5) · Connect other end of tubing to pilot gas supply or gas Insert thermocouple tip into thermocouple spud of pilot burner control according the manufacturer’s instructions. and tighten with the attached nut. Fig. 3. Mounting of thermocouple EN1R--9095 0002R5--NE 2  L K K 20_ 20_ 8,5 1,1 18,1 13 20_ 90 10,1…