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Honeywell Y343B1002 manual

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Table of contents for the manual

  • Page 1

    Honevwell THE Y343B IGNITION PACKAGE PROVIDES DIRECT SPARK IGNITION (DSI) FOR GAS HEATING SYSTEMS. THE PACKAGE IN- CLUDES THE S87D ELECTRONIC MODULE, Q354A FLAME SENSOR, Q347A SPARK IG- NITER-SENSOR AND 392286-l IGNITION CABLE. DEPENDABLE BURNER IGNITION 0 Spark generated by electronic module and internal step-up transformer. SOLID STATE DESIGN 17 [...]

  • Page 2

    SPECIFICATIONS 4 The Y34381002 Direct Soark Gas Burner lanition Package includes the S87D ilectronic Module, 6347A Spark Igniter-Sensor, Q354A Flame Sensor and 392286-l Ignition Cable Assembly. Other controls needed to complete the heating sys- tem include a 24 V, DSI gas valve; 24 V thermostat; 24 V transformer and high temperature limit controlle[...]

  • Page 3

    AMBIENT TEMPERATURE RATING: Minus 40 F to plus 175 F [minus 40 C to plus 79 C]. WIRING CONNECTIONS: l/4 in. [6.4 mm] male quick-connect terminals, for all except ALARM ter- minal. ALARM terminal, l/4 in. [6.4 mm] female quick-connect. l/4 in. [6.4 mm] diameter stud base for ignition cable. REPLACEMENT PARTS: 3 A fuse. Q347A SPARK IGNITER-SENSOR The[...]

  • Page 4

    TABLE l-GAS CONTROLS. MODEL NO. V845A VR8450A V845C VR8450C VR8540A VR8590A VR8600A TYPE OF PRESSURE REGULATOR Standard Standard Step-open Step-open Two-stage Negative Negative CAPACITY RANGE OF STANDARD MODEL cfh mJ/hr 110to335 3.1 to 9.5 110to290 3.1 to 7.8 11oto335 3.1 to 9.5 110to290 3.1 to 7.8 110to290 3.1 to 7.8 37 to 400 1.oto 11.3 37 to 400[...]

  • Page 5

    Position the Q347 so that only the tips of the elec- trodes are immersed in the burner flame. The burner must ignite smoothly - usually this will be ac- complished with tip of electrodes (spark gap) spaced approximately l/4 in. [6.4 mm] from the surface of the burner. Gas must flow into one of the three open sides of the spark gap (where outer elec[...]

  • Page 6

    Q354A FLAME SENSOR 1. Mate quick-connect terminals (l/4 in. [6.4 mmf)’ are provided on both the Q354 and S87D. Connect the SENSOR terminal on the 587 to the terminal on the Q354 as shown in Fig. 4. Use thermoplastic insulated wire with a minimum rating of 105 C [221 F] for the flame sensor leadwire; asbestos insulation is not acceptable. AUXILIAR[...]

  • Page 7

    FIG. B-WIRING HOOKUP FOR Y343B PACKAGE IN A TYPICAL TWO-STAGE DSI HEATING SYSTEM. ,, “,, ~ ,,, I ,,,, ,. ,.., :. II ,, , .xI,. j ,,,. ., _ ,-, CI ,x .,,, ., . .x _^.,” ~.. ,, ,IX ^ _, FIG. 7-S67D SIMPLIFIED SCHEMATIC DIAGRAM. 7 66-00?4[...]

  • Page 8

    STARTUP AND CHECKOUT The following start-up and checkout procedures are basic to the S87. If possible, refer to the specific instructions provided by the appliance manufacturer since the application and controls used may differ. NOTE: If one of the system components fails, the S87 will either not operate or it will go into safety lockout (depending[...]

  • Page 9

    FIG. a--NORMAL SYSTEM SEQUENCE OF OPERATION. SERVICE l Only persons trained and experienced in DSI systems should service this equipment. If a condition exists that causes the S87D electronic module to go into safety lockout, meter readings must be taken quickly after restart - within trial-for-ignition period. Always de-energize the system for at [...]

  • Page 10

    GROUNDING CONNECTIONS A common ground is required for the burner, spark igniter-sensor mounting bracket and the GND terminal of the 587. If ground is poor or erratic, safety shutdown may occur occasionally even though operation is nor- mal at time of checkout. Therefore, if nuisance shut- downs have been reported, be sure to check ground connection[...]

  • Page 11

    t TROUBLESHOOTING . Start the system by setting the thermostat (tem- down to the next box. If the condition is not true or not perature controller) to call for heat. Observe the system okay (answer is no), go to the box at right. Continue response and establish the type of malfunction or checking and answering conditions in each box until a deviati[...]