Eclipse TFB030 Manual

Also see for TFB030: Installation guide

Contents

Eclipse TFB030 Manual Manual pdf 11 page image

11Eclipse TFB, V2, Design Guide 310, 11/14/2014Figure 3.9. System SchematicsStep 3: Ignition SystemFor the ignition system use:• 6000 VAC transformers• full wave spark transformers• one transformer per burnerDo NOT use:• 10,000 VAC transformers• twin outlet transformers• distributor type transformers• half wave spark transformersTFB burners are capable of direct spark ignition anywherewithin the listed operating range. However, it isrecommended that low fire start be used. Local safety andinsurance requirements demand that you limit themaximum time that a burner takes to ignite. These timelimits vary from country to country. For the USA the timelimit is 15 seconds, for Europe it is 3 seconds.The time that a burner takes to ignite depends on:• the distance between the gas shut-off valve and theburner• the air/gas ratio• the gas flow at start conditionsIn the USA, with a time of 15 seconds to ignition, thereshould be sufficient time to ignite the burners. It ispossible, however, to have the low fire too low to ignitewithin the time limit. Under these circumstances you mustconsider the following options:• start at higher input levels• resize and/or relocate the gas controlsStep 4: Flame Monitoring Control SystemA flame monitoring system consists of two main parts:• a flame sensor• flame monitoring controlNOTE: A flame monitoring system may not be required fortube fired burners. According to NFPA 86, combustionsafeguards on radiant tube type heating systems are notrequired where a means of ignition is provided and thesystems are arranged and designed such that either of thefollowing conditions is satisfied:(a) The tubes are of metal construction and open at one orboth ends with heat recovery systems, if used, that are ofexplosion-resistant construction.(b) The entire radiant tube heating system, including anyassociated heat recovery system, is of explosion-resistantconstruction.PCombustion air at ambient temperature(Radiant & Immersion applications)PPre-heated combustion air(Radiant applications)SafetyValveTrainSafetyValveTrainto other BurnersImpulse linePressure tapsto other Zonesto other Zones to other Burnersto other Burnersto other BurnersImpulse linePressure tapsto other Zonesto other Zones (optional)(optional)