£ MB-6001 APRIL 17, 2008 FIREYE ® MULTI-BURNER CONTROL APPROVED DESCRIPTION The Fireye Multi-Burner Monitoring System controls the start-up sequence and monitors the flame of up to 20 individual gas, oil, or combination gas/oil burners connected to a common valve train. Its dynamic on-board testing checks for faulty relays, proof of valve closure, high and low fire switch interlocks, and shorted air switch.
£ MBSERIES SPECIFICATIONS PARAMETER SUPPLY VOLTAGE DESCRIPTION 120 VAC (+10%, -15%), 50/60 Hz POWER COMSUMPTION TEMPERATURE RANGE 25 VA UNIT MODEL NO TEMPERATURE RANGE MULTI-BURNER MB-600S -40° TO +60°C (-40° TO +140°F) FLAME SENSOR MB-600PF -40° TO +60°C (-40° TO +140°F) REMOTE DISPLAY MB510 0° TO +50°C (-32° TO +122°F) UV SCANNER UV7A4 -40° TO +125°C (-40° TO +257°F) 90° UV SCANNER UV7R4 -40° TO +60°C (-40° TO +140°F) SELF-CHECK UV UV7SC -40° TO +60°C (-40° TO +140°F) FLAME FAIL
£ DIMENSION INFORMATION: twortto MMain an i Chassis C h assis(for(Fo w four ot oburners) fo u rb ur n ers ) FIGURE 1. 5.500" (140mm) 13.562" (344mm) 8.875" (225mm) 1 2 3 4 5 6 7 8 9 10 1 E 2 3 4 5 6 7 8 MB-600S FLAME RELAY FIREYE¨ 9.250" (235mm) MBPF-600PF MBPF-600PF FLAME RELAY FIREYE¨ FLAME RELAY FIREYE¨ 0.781" (20mm) 6.000" (152mm) Expansion Boards Mounting Holes (4) .187" (5mm) Dia. 8.875" (225mm) 1.000" (25mm) Mounting Holes (6) .187" (5mm) Dia. 9.250" (235mm) 4.625" (117mm) 6.
£ MBSERIES ORDERING INFORMATION ITEM PART NUMBER DESCRIPTION BULLETIN MB-6001 1 MB-600S MULTI-BURNER CONTROL SYSTEM, 120VAC, 50/60 HZ CONSISTING OF MOTHER BOARD (MB-600M), RELAY BOARD (MB-600R), LOGIC MODULE (MB-600L), AND POWER MODULE (MB-600P), CONTAINS 4 AUXILIARY INPUTS, PURGE MODULATION, VALVE LEAK TESTING 1 MB-632S SAME AS MB-600S EXCEPT MOTHERBOARD IS MB-632M FOR RS-232 COMMUNICATIONS 1 MB-685S SAME AS MB-600S EXCEPT MOTHERBOARD IS MB-685M FOR RS-485 COMMUNICATIONS 1 MB-600M REPLACEM
£ PRODUCT DESCRIPTION The Fireye Multi-Burner Control System consists of a motherboard and 3 plug in modules. These modules are located under the cover attached to the motherboard by 4 type #6-32 X 1/2 in screws. It will be necessary to remove the cover to access the dip switches located on the logic module. Relay Module (MB-600R) The relay module contains the output relays which provide power for operating the ignition coil, pilot valve, main valve, combustion fan and alarm.
£ incorporates test point and ground (GND) connection jacks in the front of the unit. Using these, the flame signal strength of each burner can be measured using a 0-15 VDC, one megohm/volt meter. Expansion Module The expansion board contains the mounting sockets and connection terminals for adding additional MB-600PF flame sensing modules, which is needed for systems having more than four burners.
£ The DIP switches are located on the logic module, which is mounted in the second position from the left on the motherboard next to the relay module. To gain access to the DIP switches, the cover of the logic module must be removed. To do this, remove the four screws which hold the cover onto the motherboard. Then gently pull the logic module towards you to disengage the logic module from its mating connector. Located on the outside of the cover is a label describing the function of the DIP switches.
£ S4 DIP Switches SW1 determines fan motor operation: OFF = Fan motor remains energized after flame fail ON = Fan motor de-energizes with flame fail after 15 second post purge SW8 determines operational mode: ON = PURGE TIME OFF =EXTENDED PURGE TIME SW7 of the S4 DIP switches is used; along with SW3 of DIP switch S2. TFI timings as shown in table below. REQUIRED TFI (Sec.
£ S6 Dip Switches The S6 DIP switches permit selection of the number of burners in the system. The setting of S6 should equal the amount of MB-600PF flame sensing modules connected. NO.
£ FUNCTION SUMMARY Combustion Air Flow Check Terminal The Multi-Burner Control checks that the combustion air flow switch is open before start-up, closed during operation and open again at burner shutdown, thus preventing operation with an air switch that is defective, maladjusted or jumped. Main Fuel Valve Proof-of-Closure Terminal The Multi-Burner Control checks that the main fuel valve is closed before start-up and after burner shutdown.
£ SYSTEM FAULTS A system fault (illuminated by the fault LED on the logic cards) prevents gas ignition but does not lock out the system. System fault conditions are as follows: 1. If a flame is detected out of sequence, which may be caused by: a) a faulty scanner b) electrical interference on the sensor leads c) a flame exists in the burner due to a gas leak or other condition. 2. Air flow switch closed before start-up.
£ Extended Features High to Low Fire Purge Modulation Capability with High to Low Fire Position Switch Interlocks The modulation feature incorporates a high fire purge time and a low fire start check into the purge sequence. This feature allows the Multi-Burner Control to sequence internal dry contacts which can be used by the customer requiring a high fire purge of the combustion chamber before ignition.
£ If the VLSD does not activate the VLSD 120 VAC input within 40 seconds, then an alarm lockout will occur, and the following message will appear on the optional remote display: VALVE LEAK FAIL If a valve leak occurs, then the fan output on the Multi-Burner Control will be activated to purge the combustion chamber of gases. If the VLSD input is not used, then it should be connected to 120 VAC.
£ RS232/RS485 Communication Interfaces Terminals 5 and 6 on Multi-Burner Control terminal strip J7 provide a serial output communication interface for remotely monitoring the system sequence and status using a terminal or a modem; refer to later section for the types of messages sent by the Multi-Burner Control. The communications protocol is 8 bit, no parity, 1 stop bit and1200 baud. Multi-Burner Control model MB-632S is provided as a RS232 interface.
£ TIMING SEQUENCE 15
£ SYSTEM INSTALLATION In this section, the necessary procedures are detailed to integrate a Multi-Burner Control into a burner system; Figures 5 and 6 illustrate the various terminal strips mentioned followed by suggested wiring diagrams. Shut off the power supply before any module is removed or replaced from the unit, including the remote display. Caution: Installation and maintenance must conform with the National Electrical Code and all other national and local codes and authorities having jurisdiction.
£ HIGH FIRE INPUT The system can be wired to check for high fire position during the high fire purge portion of the sequence. To use this feature, the high fire position switch must be connected to the high fire input (terminal 5 on terminal strip J1). If this feature is not used, a jumper must be placed between terminals 1 and 5 on terminal strip J1.
£ TERMINAL STRIP IDENTIFICATION AND LOCATION Main Chassis (for 2 to 4 burners) FIGURE 5. 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 E 2 3 4 5 6 7 8 MB-600S MBPF-600PF MBPF-600PF FLAME RELAY FIREYE¨ FLAME RELAY FIREYE¨ Expansion Board Connection FM APPROVED N MBPF-600PF MBPF-600PF FLAME RELAY FIREYE¨ FLAME RELAY FIREYE¨ L 9 1 2 3 4 5 6 7 8 9 10 1 2 3 4 Expansion Boards FIGURE 6.
£ WIRING DIAGRAM & CONNECTIONS - MAIN CHASSIS On/Off 15 A. Fuse G 120 VAC Neutral J9 Terminals J2 Terminals J1 Terminals Interlocks & Limits Air Flow POVC 11 Low Fire 11 High Fire 11 Leak Detect 11 VDK/VLSD Aux. Input #1 11 Aux. Input #2 11 Aux. Input #3 11 Aux. Input #4 11 Customer Supplied (if used) 1 E 2 2 3 J3 Terminals 4 1 5 2 6 3 7 Common 2 Low Fire 4 3 4 9 10 + 6 CR VDK/VLSD Alarm 120VAC J7 Terminals Burner #1 UV7A4 or UV7R4 U.V.
£ WIRING DIAGRAM & CONNECTIONS - EXPANSION BOARD UP TO FOUR BURNERS Main Chassis J9 Terminals L 120 VAC J3 Terminals 22 3 4 L 2 G 3 Flame Rod UV7A4 or UV7R4 U.V. Scanner Burner #6 1 Shield Yellow Flame Rod Flame Rod Yellow Blue Shield 4 Blue 7 10 Neutral Yellow 6 9 J4 Terminals 222 N UV7A4 or UV7R4 U.V. Scanner B (WH) 120 VAC (RD) Neutral A (BK) Signal (UV) (GN) GND (Return) C 5 8 J1 Terminals Blue 1 2 N G Burner #5 UV7A4 or UV7R4 U.V.
£ WIRING DIAGRAM & CONNECTIONS - EXPANSION BOARD UP TO EIGHT BURNERS Main Chassis J9 Terminals L 120 VAC J3 Terminals 22 3 4 N Yellow UV7A4 or UV7R4 U.V. Scanner Flame Rod J4 Terminals 22 J1 Terminals Blue 1 2 N G Burner #6 Neutral 1 L 2 G 3 Shield 4 5 10 7 Yellow UV7A4 or UV7R4 U.V.
£ TEST PROCEDURES INTRODUCTION This section describes the test procedures that must be performed after installation to insure that the Multi-Burner Control is operating properly; these procedures are mandatory. LIMITS AND INTERLOCK TESTS Periodically check all interlock and limit switches by manually tripping them during burner operation to make sure they cause the system to shut down. WARNING: Never operate a system that is improperly adjusted or has faulty interlocks or limit switches.
£ PILOT FLAME FAILURE TEST 1. 2. 3. 4. Manually shut off the fuel supply to one individual pilot and main burner, or all burners if the system has a single fuel supply. Place system in pilot test mode. Start the system normally. The controller should lock out*; if it doesn’t, then the controller is detecting a false flame signal. Find the problem and correct it before resuming normal operation. Repeat steps 1 through 4 until all burners have been tested.
£ leads in its own shielded cable. Multiple shielded cables can be run in a common conduit. * The burner at which a flame fails will be identified by a flashing red “FLAME FAIL” LED on the corresponding flame sensing module.
£ FLAME RODS FLAME ROD 3. 4. WRONG CORRECT Rod Detects Weak Pilot Rod Detects Only Strong Pilot Flame Flame rods should be used only on gas burners. They accumulate soot on oil burners, causing nuisance shutdowns and unsafe operating conditions. See the burner manufacturer’s literature for flame rod mounting location. When installing flame rods, please consider the following: 1.Keep the flame rod as short as possible and at least 13 mm (1/2") away from any refractory. 2.
£ SCANNER SIGHTING CONDITIONS FIGURE 8. Scanner Sighting 1/3 of FLAME LENGTH MAIN BURNER SCANNER SIGHT LINE 3. Aim scanners at the third of the flame closest to the burner nozzle, as shown at left. This is especially true for oil flames which typically have less UV radiation in the outer flame. The scanner should view the intersection of the pilot and main flames. When sighting scanners, please consider the following: 1.Sight the scanner away from the ignition spark.
£ MESSAGE TYPE LIMITS OPEN TIME=XXXX:XX:XX STATUS LOW FIRE FAIL XX:XX:XX LOCKOUT LOCKOUT Low fire switch (strip J1, terminal 4) is open just prior to pilot trial for ignition. MAIN ( ) FAIL XX:XX:XX LOCKOUT LOCKOUT Main flame was not established during the main burner trial for ignition .MAIN FLAME ON STATUS Main valve has been energized and main flame proven during trial for ignition. MAIN FLAME ON PILOT OFF STATUS Pilot valve (strip J2, terminal 5) is de-energized and main flame is on.
£ MESSAGE TYPE EXPLANATION VALVE LEAKAGE UNDER TEST XX STATUS Indicates that the optional valve leak sensing device has been activated and the test period (maximum of 35 seconds) has begun. VALVE LEAK FAIL XX:XX:XX LOCKOUT LOCKOUT The test period for valve leak sensing has exceeded 40 seconds and failed; check the gas shut-off valves. WATCHDOG FAIL XX:XX:XX LOCKOUT LOCKOUT Internal control failure; replace controller.
