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CIVIC1-MOI-IT-W-ML-09-18-Rev.1
Watts Water Technologies, Inc.
EN
Once the correct power is supplied, the control unit carries out
the following phases in sequence:
LED and buzzer tests (about 5 seconds)
Whichever operating mode is selected, the LEDs will switch on
in sequence and the buzzer will sound briefly.
Warm-up of detectors (about 1 minute)
During this phase, which brings the detectors up to the
correct operating temperature, the gas detection system is not
operational. During this phase, if the wiring connections
are correct, the control unit display shows the following:
Operating test (about 3 minutes)
Once the detector warm-up phase is complete, the device
enters the operating test phase. During this phase, all internal
timing is reset to ease operating verification of the detectors
(alarm simulation). In this case, the control unit display shows
the following:
Keep the “Reset/Test” button pressed down for over 1 second
to interrupt the operating test phase. To test the detectors
correctly, proceed as follows:
Gas alarm test
Bring the test cylinder close to the detector grille and release
a small amount of gas (caution: if the gas is aimed directly at
the sensor, this will be permanently damaged). For CO testing
of detectors, smoked produced by combustion can be used.
The control unit will signal the alarm as follows:
Keep the “Reset/Test” button pressed down for 1 second to
silence the alarm (if there is no gas remaining) and terminate
the operating test phase. To restart the Test phase, just keep
the relative button pressed down for about 6 seconds.
Caution The repeated use or high concentration of interfering
substances (alcohol, lighter fluid etc.) can cause permanen
damage to the sensor and put the device out of order.
Interface Positive
logic
Negative
logic
Power supply LED Green Flashing 1 Hz Flashing 1 Hz
Failure LED Yellow On Off
Gas alarm LED Red On Off
Alarm buzzer No sound No sound
Alarm relay Energised De-energised
Failure output On Off
Interface Positive
logic
Negative
logic
Power supply LED Green Flashing 2 Hz Flashing 2 Hz
Failure LED Yellow On Off
Gas alarm LED Red On Off
Alarm buzzer No sound No sound
Alarm relay Energised De-energised
Failure output On Off
Interface Positive logic Negative logic
Gas alarm LED Red Off On
Alarm buzzer Continuous sound Continuous sound
Alarm relay De- energised
Energised
(permanently or
pulsed depending
on E2)
Failure output Off On
Interface Positive
logic
Negative
logic
Detector
Failure LED Yellow Off On
Alarm buzzer Intermittent
sound
Intermittent
sound
Failure output Off On
Detector failure test
Simulate a failure in the detector as follows:
- disconnect the cable of the detector and verify the following alerts:
- reconnect the detector and press the “Reset/reconnect the
detector and press the “Reset/Test” to return the control unit to
normal operating mode, making the sure the conditions of the
various interfaces are reset.
Normal operation
This is the normal operating phase of the control unit during
which both gas alarm monitoring and self-testing of the
instrument (detector) and the system (control unit) are
active. During this phase, where there are no alarms and/or
abnormalities, the control unit display shows the following:
When dangerous concentrations of gas are detected, the
control unit enters the gas alarm phase and carries out the
following operations:
Once the gas alarm condition is normalised, the control unit
needs to be reset to its normal operating status. Press the
“Reset/Test button on the front of the control unit to reset it.
If there are abnormalities (detector and/or control unit), the con-
trol unit will show the following display:
Once the failure is fixed, the control unit needs to be reset to its
normal operating status. Press the “Reset/Test button on the
front of the control unit to reset it.
Caution: it is advisable to repeat the operating test at least once
a year, or after a prolonged period of stoppage and in any case,
every time the detector is replaced.
Interface Positive
logic
Negative
logic
Power supply LED Green On On
Failure LED Yellow On Off
Gas alarm LED Red On Off
Alarm buzzer No sound No sound
Alarm relay Energised De-energised
Failure output On Off
Interface Positive
logic
Negative logic
Detector alarm LED Red Off On
Alarm buzzer Continuous
sound
Continuous
sound
Alarm relay De-energised
Energised
(permanently or
pulsed depending
on E2)
Failure output On Off
Interface Positive
logic
Negative
logic
Failure LED Yellow Off On
Alarm buzzer Intermittent
sound
Intermittent
sound
Failure output On Off
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