Operations; Power Up; Led Indicator; Buzzer Silence - Macurco RD-VRF User Instructions

•
For power supply connection, it is recommended to use a 2-wire cable with suitable section
according to the distance and number of detectors.
•
Once the installation is completed, verify that each detector reaches at least 12 Vdc.

4 Operations

4.1 Power up

When the detector is powered on, the status LED starts blinking green during warm-up time. After two minutes, the
LED goes to a steady green during normal status. Once the warm-up phase is over, the detector can work correctly,
although the optimal performance will be achieved after two hours.

4.2 LED Indicator

Clean Air – During normal operation, the Power indicator will be green and steady.
Warmup – During warmup, the Power indicator will be green and blinking.
Alarm – During an alarm condition, the Power indicator will be red and blinking.
Fault/Trouble – During a fault condition, the Power indicator will flash between amber and red.

4.3 Buzzer Silence

To silence the buzzer, the special magnet must be brought near the point on the left of the gas sensor, in
correspondence with the hall effect sensor. If the alarm condition persists, after 1 minute the buzzer is reactivated.
Utilizing the onboard dipswitch, you can disable the buzzer permanently with position 1 in the Off position and you
can enable the buzzer reactivation alarm from silence from 1 minute (default) to 5 minutes by adjusting position 4 in
the Off position.

4.4 Internal Dipswitch Function

Switch Position
1
2 Relay 2 Normally Energized (Default)
3 Relay 1 Normally Energized (Default)
4 Buzzer 5 Min. Reactivation after silencing

4.5 Trouble Indicator

The RD-VRF monitors all critical functions of the unit through software diagnostics that continuously test and verify
unit operation. Internal failure of the RD-VRF will engage both relays based on the corresponding dipswitch settings
on both relays. The status LED will flash between amber and red. The buzzer will emit a constant sound (if the
BUZZER is enabled). Failure of the VRF's internal power supply or a lack of power to the detector will result in the
status light remaining OFF (not illuminated). In this case, the most common cause of detector trouble would be a
break in the wiring between the control panel and the VRF.
REV – 1.0
Table 4-1: Dipswitch Function
ON
Buzzer Enabled (Default)
34-5354-0001-14
OFF
Buzzer Disabled
Relay 2 De-energized
Relay 1 De-energized
Buzzer 1 Min. Reactivation after silencing (Default)
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