FUNCTION TEST (Continued)
1. (Continued)
After verifying the above, remove the jumper wire. The control
module will reset to normal (as long as the cycle for Time
Delay No. 1 has not been exceeded). Normal is when only the
GREEN Power LED is pulsing and no other LEDʼs or the
Audio Alarm are operating. Also, the alarm relay will return to
normal.
2. This next test will verify the settings of the time delays. Again,
hold the jumper wire on Terminals 3 and 4. Continue to hold
the jumper wire on these terminals until the second time delay
has started. Once the second time delay has started, the
jumper wire can be removed.
The following will take place while the jumper wire is being
held on the terminals:
• The RED Alarm LED and sounder will pulse at a rate of two
times per second
• The first time delay cycle will start and time through its
cycle
• The alarm relay will activate (non-latching)
After the first time delay has completed its cycle, the following
will take place:
• The RED Alarm LED and sounder will pulse at a rate of four
times per second
• The second time delay cycle will start and time through its
cycle
• The alarm relay will activate (latching)
• The shut-down relay will activate (latching), causing vehicle
shutdown
• At the end of the second time delay cycle, the release
circuit (gas motor) will activate, causing the GREEN LED
on the release circuit tester to illuminate.
3. After the jumper wire has been removed, reset release circuit
test module by pressing the reset button on the tester. Do not
disconnect the test module at this time.
4. Push the “RESET” button on the CHECKFIRE MP-N control
module and the module will return to the normal condition.
5. If required, make certain to reset any auxiliary shutdown
devices.
Initiating Circuit No. 2
Initiating circuit No. 2 can be programmed as an initiating input
circuit, which will cause a release to occur, or as a pressure switch
feedback input circuit, which will not cause a release to occur. If
programmed as an initiating input circuit, two options are avail-
able. The first option allows the circuit to be programmed for
immediate release and the second option allows for
shutdown/time delay/release. If choosing the shutdown/time
delay/release option, the programming will also require a length of
time delay to be chosen.
Before conducting the functional test, remove the module cover
and install the extender cable(s). Then, using a digital Ohmmeter,
measure the resistance between terminals 3 and 4 with the detec-
tion wire connected. The resistance value should read approxi-
mately 4.7K ohms. This will verify the circuit is intact and the
end-of-the-line resistor is connected.
Immediate Release Option
1. Using the jumper wire, hold the wire on Terminals 5 and 6.
This is the pull station circuit. If the circuit was programmed for
immediate release, the following will take place:
• The RED Alarm LED and the sounder will pulse at a rate of
four times per second
• The alarm relay will operate (latching)
• The shutdown relay will operate (latching)
• The release circuit (gas motor) will activate, causing the
GREEN LED on the release circuit tester to illuminate
2. Reset release circuit test module by pressing the reset button
on the tester. Do not disconnect the test module at this
time.
3. Push the “RESET” button on the CHECKFIRE MP-N Control
Module and the module will return to the normal condition.
4. If required, make certain to reset any auxiliary shutdown
devices.
Shutdown/Time Delay/Release Option
1. Using the jumper wire, hold the wire on Terminals 5 and 6.
This is the pull station circuit. If the circuit was programmed for
shutdown/time delay/release, the following will take place:
• The RED Alarm LED and sounder will pulse at a rate of four
times per second
• The alarm relay will operate immediately (latching)
• The shutdown relay will operate immediately (latching)
• A single time delay cycle will start (during test, verify length
of delay)
After the single time delay cycle is completed, the release
circuit (gas motor) will actuate, causing the GREEN LED on
the release circuit tester to illuminate.
2. Reset release circuit test module by pressing the reset button
on the tester. Do not disconnect the test module at this
time.
3. Push the “RESET” button on the CHECKFIRE MP-N Control
Module and the module will return to the normal condition.
4. If required, make certain to reset any auxiliary shutdown
devices.
Pressure Switch Option
1. Using the jumper wire, hold the wire on terminals 5 and 6. This
is the pressure switch circuit. The following will take place:
• The alarm relay will operate (latching)
• The shutdown relay will operate (latching)
• The RED alarm LED and the sounder will pulse at a rate of
four times per second.
2. Push the “RESET” button on the CHECKFIRE MP-N Control
Module and the module will return to the normal condition.
3. If required, make certain to reset any auxiliary shutdown
devices.
INSTALLATION
PAGE 22 REV. 02 2012-MAY-18
CHECKFIRE MP-N Electric
Detection and Actuation System Manual
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