Product Overview

17
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APPLICATION AND FUNCTION - MP230H
The MP230H Programmer Module is designed as a direct replacement for the Fireye M3H Series
“non-recycle” controls, as well as providing a “recycle” operation for the control. It provides
prepurge, ignition and flame safeguard for heating and process light oil or gas fired burners. The
“recycle” or “non-recycle” operation is determined by the position of dipswitch #8 on the Program-
mer Module. Purge timing as well as trial for ignition timing is also set by the dipswitch settings. See
Programmer Dipswitch Settings on page 11.
All installation, wiring, functions, testing instructions for the MP230 control are applicable to the
MP230H. The MP230H provides an additional function whereby the powering of Terminal 5 is
delayed for eight (8) seconds after flame is detected, and Terminal 4 remains powered during the
eight (8) second delay.
This additional function is offered primarily for two-stage light oil burners, to assure a specific delay
between light off of the first and second stage, and to provide additional ignition timing to improve
flame stabilization.
Amplifier and Scanner Selection
The Amplifier Module should be selected based on the type of flame scanner (UV scanner or flame
rod), and the required Flame Failure response Time (F.F.R.T.). See ORDERING INFORMATION on
page 4 for the appropriate part numbers.
TIMING CHART
Pilot Stabilization timing begins as soon as flame is proven.
Selectable Recycle/Non-Recycle operation on loss of flame after Terminal 5 is energized.
TYPE MP230H
PROGRAMMING SEQUENCE
L1/7
ON
PURGE
COMPLETE
FIRING
PERIOD
L1/7
OFF
SELECTABLE PTFI
5 OR10 SEC
SELECTABLE
PURGE
8
T
E
R
M
I
N
A
L
S
3
4
5
SELECTABLE
POST PURGE
AIR
FLOW
PROVEN
STABILIZATION PERIOD
8 SEC