2
resolve the application requirement. Current families of programmers for use with the MEC120 and
MEC230 type chassis include the MEP100, MEP 200 and MEP500 series. Programmers for use with
the MEC320 and MEC480 type chassis include the MEP300, MEP400 and MEP600 series.
Some programmer modules are equipped with a series of dipswitches to select Purge Timing, Pilot
Trial for Ignition (PTFI) timing, Proof of Air flow open at start, Post Purge, Recycle and Non-Recy-
cle operation. LED indicators on the programmer modules indicate the current operating status of the
control and during a lockout condition displays the fault as a coded sequence, simplifying the trou-
bleshooting of a shutdown.
In the event of pilot ignition failure, or following a safety shutdown, the control locks out, activating
an alarm circuit and displays the cause of lockout on the integrated LED’s and on the optional ED510
display. Unless otherwise specified, manual reset is required. Remote reset is available on the
MEC120R, MEC120RC, MEC320RD, MEC230RC, MEC320R, MEC320RC and MEC320RD
chassis. A detailed description of the various programmer, amplifier and chassis modules is found
later in this document. A “run-check” switch, provided to assist in testing size, position and stabiliza-
tion of the pilot, is provided on some specific models and all MEP500 and MEP600 series program-
mers.
Modular MicroM controls incorporate a safety checking circuit that is operative on each start. If
flame (real or simulated) is detected prior to a start or during purge, the fuel valves will not be ener-
gized and the unit will lock out.
The modular MicroM controls use the same wiring base as the Fireye UVM, TFM and M- Series II
controls and are designed to be interchangeable with most models with little or no rewiring. See
INSTALLATION OF CONTROL, SCANNERS AND FLAME DETECTORS (page 8 and 47) for
temperature and wiring requirements.
SPECIFICATIONS
Supply:
120 VAC (min. 102, max. 132) 50/60 Hz. (MEC1XX, MEC3XX)
230 VAC (min. 196, max. 253) 50/60 Hz. (MEC2XX, MEC4XX)
Power Consumption:
12 VA (Operating)
Shipping Weight (Approx):
3 lbs (1.4 kg)
Operating Temperature:
-40°F (-40°C) to 140°F (60°C)
Table 1:
AMBIENT TEMPERATURE LIMITS
MAXIMUM
MINIMUM
Control
140
°
F
60
°
C
- 40
°
F
- 40
°
C
Scanner UV1A, UV2,
UV8A, 45UV3
200
°
F
93
°
C
- 40
°
F
- 40
°
C
45UV5-1007, 45UV5-1009
200
°
F
93
°
C
- 40
°
F
- 40
°
C
Photocell 45CM1
165
°
F
74
°
C
- 40
°
F
- 40
°
C
Flame Rod
(Tip 2460 F)
1500
°
F
816
°
C
- 40
°
F
- 40
°
C
48PT2
140
°
F
60
°
C
-40
°
F
-40
°
C
CSIA5
140
°
F
60
°
C
-40
°
F
-40
°
C
NOTE: The individual MicroM modules, i.e. MEC chassis, MEP programmers and amplifiers are
not interchangeable with M-Series II modules, i.e. MC chassis, MP programmers and amplifiers.
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