Product Overview



MEP437

PROGRAMMER MODULE

FOR USE WITH THE FIREYE

MEC320

MicroM™ CONTROL

WARNING: Selection of this control for a particular application should be made by a

competent professional, licensed by a state or other government. Inappropriate application

of this product could result in an unsafe condition hazardous to life and property.

DESCRIPTION

The Fireye MicroM Series Flame Safeguard Control is a compact, microprocessor based,

modular burner management system designed to provide automatic ignition and continuous

flame monitoring for commercial sizes of heating and process equipment firing any type of

fuel. The advantages of the MicroM are zero dependence on discrete components previ-

ously used for timing functions.

Flame Failure Response Time (FFRT) is determined by the selection of the amplifier mod-

ule. Test jacks are also provided on the flame amplifier module to permit flame signal mea-

surement during operation. For proper and safe application of this product, you must refer

to Fireye bulletin MC-5000 for a detailed description of the various programmer modules,

including installation instructions, amplifier selection, operating sequences for each pro-

grammer module, etc.

To maximize safety the MEP437 provides early spark termination followed by a pilot prov-

ing period. This prevents the unwanted detection of spark generated by a maladjusted pilot

and spark assembly. Refer to Figure 3 on page 4, Sequence Timing.

Unique to the MEP437 is the ability to check the main valve proof of closure switch also

referred to the fuel valve end switch. This switch must be connected to terminals L1-7. The

proper state of this switch checked after the running interlocks connected to terminal 6 are

closed. Refer to Figure 2 on page 3.

Functions provided on the MEP437 programmer:

1. Operating temperature: -40F (-40C) to 140 F (60C)

2. MEC320 type chassis required

3. Purge time: User selectable 0, 5, 15, 30, 60, 90, 120, 240 seconds

4. Pilot trial for ignition period (PTFI): User selectable 5 (closed) or 10 seconds (open) fixed.

5. Pilot solenoid operation, terminal 3 user selectable Interrupted or Intermittent

6. Pilot proving period (ignition terminal 4 de-energized): 5 seconds

7. Main trail for ignition period (MTFI): 5 seconds

8. Action on pilot flame fail: Lockout

9. Action on pilot proving period flame fail: Lockout

10. Action on main trial for ignition period flame fail: Lockout

MP-5401

APRIL 11, 2013

PAGE 1
 MP-5401 APRIL 11, 2013 MEP437 PROGRAMMER MODULE FOR USE WITH THE FIREYE® MEC320 MicroM™ CONTROL WARNING: Selection of this control for a particular application should be made by a competent professional, licensed by a state or other government. Inappropriate application of this product could result in an unsafe condition hazardous to life and property.
PAGE 2
 11. Action on main flame fail 12. 13. 14. 15. 16. 17.
PAGE 3
 FIGURE 2. WIRING ARRANGEMENT FOR PILOT IGNITED BURNERS USING MEP437 PROGRAMMER RUNNING INTERLOCK FLAME SCANNER FUEL VALVE END SWITCH H 6 7 KL (WATCHDOG) 1 S2 2 N KA A KP KB 8 S1 FLAME AMPLIFIER F1 120VAC 50/60Hz KI 3 4 PV ALARM BLOWER MOTOR OR CONTACTOR PILOT VALVE INTERRUPTED OR INTERMITTENT FLAME ROD ONLY KF 5 MV SPARK IGNITION MAIN FUEL VALVE Lockout occurs on all occurrences of flame failure. WARNING: Remove power from the control before proceeding.
PAGE 4
 SEQUENCE TIMING - MEP437 FIGURE 3. NOTICE When Fireye products are combined with equipment manufactured by others and/or integrated into systems designed or manufactured by others, the Fireye warranty, as stated in its General Terms and Conditions of Sale, pertains only to the Fireye products and not to any other equipment or to the combined system or its overall performance.