Product Overview
21
®
TIMING CHART
Pilot stabilization timing begins as soon as flame is proven.
Lockout on loss of air flow after flame is proven.
Lockout on flame fail.
INSTALLATION TESTING
Use of Test Meter (All Controls)
Testing the Fireye Modular M-Series II Controls requires the use of a test AC-DC multimeter, with a
1,000 ohm/volt DC rating or greater, or a digital meter with 500K input impedance or greater.
With the test meter on the DC scale, and the test meter leads inserted into the test jacks on the ampli-
fier module, a steady DC voltage reading of 4.0 to 6.0 volts (for UV amplifiers) and 6 to 18 volts
(for flame rectification amplifiers) should be obtained when the controls are detecting flame, and
zero volts when no flame is present.
With the test meter on the AC scale, line and load voltages may be measured at the identified test
points on the chassis.
On the Modular M-Series II controls utilizing a flame rectification amplifier, a micro-ammeter may
be connected in series with the wire to Terminal S2. Normal flame will produce a meter reading
between 4 and 10 micro-amps.
Flame Signal Testing (All Controls)
1. Manually shut off the main fuel valve for a pilot ignited burner, or the secondary fuel valve for a
direct spark ignited burner.
2. Set the test meter on the DC scale and insert the test leads into the test jacks on the amplifier
module. (If the meter reads backwards, reverse the meter leads). Red - Plus, Black - Negative.
3. Initiate a normal startup.
4. When flame is established, the test reading should be normal: a steady DC voltage reading of
4.0 to 6.0 volts (for UV amplifiers) and 6 to 18 volts (for flame rectification amplifiers).
5. Inadequate flame signal may be improved by:
a. Assuring that the flame detector and wiring installations have followed the instructions on
pages 3 and 5.
b Assuring that the flame detector is clean and within the ambient temperature limits.
c Assuring that the flame is sufficiently large to detect.
d Assuring that the flame quality (fuel to air ratio, combustion air velocity) is satisfactory.
e Trying a shorter sight pipe, or increasing the sight pipe diameter.
TYPE MP562
PROGRAMMING SEQUENCE
L1/7
ON
PURGE
COMPLETE
FIRING
PERIOD
L1/7
OFF
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
MTFI
10 SEC
STABLIZATION
8 SEC
PERIOD