CUSTOMER SPECIFICATION

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1 MULTIPOINT GAS RE-IGNITER 120Vac Flame Re-Ignition For gas appliances Contents - Product description - Operating Principles - Compliance standards - Functional Requirements - Mechanical Requirements - Technical Specification - Environmental Specification - Physical Dimensions - Wiring Installation Schematic Product Re-igniter Interrupted Direct Spark Ignition system for use with natural, mixed, liquified petroleum and LP Gas mixtures. - Polarised 11 Way Input Connector allows for reduced assembly costs Vac operation. Page 1 of 7

2 Operating Principles The re-igniter monitors the flame presence at the burner and commences sparking if any flame fails. Correct operation of flame sense circuits requires the mains supply to the re-igniter to have at least a resistive connection to earth and the burners also to be earthed. An in-built delay of about one-second, between loss of flame sense and commencement of sparking, eliminates nuisance sparking if the flame is low and wavering. Compliance to Standards: ANSI Z /CSA manually Operated Electric gas Ignition Systems and Components ANSI Z21.92a 2005/CSA 6.29a-2005 manually Operated Electric gas Ignition Systems and Components Reference Standards: CAN/CSA-C22.2 No. 199-M89 Automatic Gas Ignition Systems and Components EN : 1997 Specification for Automatic controls for household and similar use EN50165: 1995 Clause Electrical equipment of non-electric appliances for household and similar purposes Functional Requirements: General The module provides (4) four interrupted, direct spark outlets to operate in conjunction with a 4 burner cook-top or range. Connected to the re-igniter is a single electrode at each burner. The electrode directs a generated spark through the gas/air medium surrounding the burner to ignite the mixture and also provides a means of detecting the flame. Each burner is individually controlled by a gas-cock. Opening the gas-cock simultaneously allows gas to flow to the burner and switches an AC voltage to the associated re-igniter channel through a micro switch. When a burner is turned on, sparks are simultaneously generated at all 4 outlets until flame is detected at the selected burner. The same process is repeated when any of the remaining burners are switched on. The circuit continues to monitor the flame presence at each burner and will recommence sparking at all burners if any flame fails. Sparking 4 independent high voltage output coils generate sufficient voltage and energy to generate a spark from the electrode across the spark gap to the earthed burner. A spark is guaranteed, provided the spark gap is within specifications and provided the electrode and cable load resulting from the cooktop or range design meets the maximum loading specifications. The spark rate varies primarily due to changes in the applied voltage, however other factors including temperature and component tolerance have an influence. Page 2 of 7

3 Flame Detection The module utilises a rectification flame sense circuit, which has distinct advantages over other reigniter flame sensing circuits. Flame conduction circuits are unable to differentiate between flame presence and leakage to earth. The flame rectification circuit applies an AC voltage (derived from the mains line voltage) to the sense electrode and detects the difference in current flow in each direction caused by the diode characteristic of the flame. Leakage paths caused by dirt or condensation do not have this diode or rectification characteristic and cannot be mistakenly sensed as a flame. The rectification sense circuit can tolerate, with no effect, leakage currents up to ten times larger than those that will cause a conduction circuit to falsely detect a flame. Even when the leakage current is large enough to have an effect, it safely results in continuous sparking, and not false flame detection as in the case of conduction circuits. The module detects flame under all flame conditions provided the electrode is positioned such that the detected flame current exceeds the minimum specified flame current. Burners with poor flame stability may result in momentary loss of sensed flame below the specified limits, however an in-built delay eliminates nuisance sparking if the flame is low and wavering. The flame failure re-ignition delay, which is dependent on the magnitude of the flame, is a delay between loss of flame sense and commencement of sparking on self re-ignition only. If flame sense is re-established within this period no sparking will occur. The module must only be used in a manner that meets all the relevant requirements of the Electrical and Gas Authorities in the country of use. Like other flame sense circuits, the AC supply to the re-igniter must have at least a resistive connection to Earth and the burners must also be earthed. When using an isolation transformer to supply the re-igniter, the Neutral connection on the re-igniter, the burners and one side of the transformer secondary are connected to earth. Alternatively Mains distribution networks with Line/Neutral have this characteristic. Mechanical Requirements Terminations HV Coil Output Terminal: 2.8*0.8mm (0.11 x0.032 ) Quick Connect tab. Input Connector: 11Way Receptacle 5mm/7.5mm Pitch. Tyco housing , pin Material (Housing Detail) Flame Retardant to standard UL94V- 0: Self extinguishing within 10sec. No flame drips that ignite. Mounting Method (Housing Detail) 2 screw mounting tabs have been integrated into the enclosure. Use No.8 Screw * 5/8 or ¾. Page 3 of 7

4 Technical Specifications Parameter Min Typ Max Units General Parameters Line Voltage Vac Frequency / Hz Current Input ma SR-Spark Rate *Note Spk/min Electrode & Cable Load to earth 40 pf Spark Max Load (40pF) *Note mm SV-Spark Output Peak Voltage * Note kv Spark Energy 15 mj Flame Sense Current *Note 2 ua FFRT-Flame Failure Reignition Time * Note sec FVT-Flame Verification Time * Note sec Note 1 : Maximum spark gap may be increase if load capacitance is reduced lower than Maximum specification. Note 2 : It is recommended that systems be designed to maintain the average minimum flame current above 0.5uA. This ensures the module does not spark due to drafts blowing flame away from the electrodes. Note 3 : CTQ Parameters ( CTQ - Critical to Quality ) Quality Assurance to monitor CTQ parameters. CTQ Data 120Vac 60Hz, 25C 15C ) Average Upper Pass Lower Units Limit Pass limit SR-Spark Rate Spk/Min SV-Spark Output Peak Voltage kv standard test load, equiv 40pF) FFRT-Flame Failure Reignition Time msec ( Flame current = 0.2uA (204 M )) FVT-Flame Verification Time (condition as FFRT) msec Definitions Flame Failure Re-ignition Time: Flame Verification Time: Spark Gap: Electrode & Cable Load to Earth: The period between loss of burner flame and a re-ignition attempt. The period between detection of burner flame and when sparking ceases. The closest distance from the electrode tip to any point on the cook-top range assembly that is connected to earth. The capacitance measured from the electrode to earth. Page 4 of 7

5 Environmental Specification Parameter Min Typ Max Units Operating Temperature ( continuous ) C Operating Temperature ( up to 1000 hours over 105 C life of product) Relative Humidity ( at 40C non condensing ) 95 % Page 5 of 7

6 Physical Dimensions Page 6 of 7

7 Wiring Installation Diagram Page 7 of 7