Operation; Initial Operating Mode - Macurco DVP-120 User Instructions

3

Operation

3.1

Initial Operating Mode

When power is first applied to the DVP-120, a few simple self-tests will be performed, and the system will cycle through all status lights,
and display the system name and model # (Figure 3-1). The system will then proceed to normal mode, if the operating parameters
have been entered.
Each time the unit is turned on it performs a self-test, which activates the audible and visual alarms. If the self-test fails, or all the alarms do not
activate, do not use. Failure to do so may adversely affect product performance and result in sickness or death.
If the user has not entered any parameters, the system WILL NOT be controlling the ventilation system. The relays WILL NOT actuate
and the horn and strobe outputs WILL NOT be powered. The power status light will show NORMAL (steady green) and the system will
immediately enter the CONFIGURATION mode, see section 3.2 for details to set the configuration parameters.
If a valid set of configuration parameters have been entered, the panel will wait for all sensors to warm up. During this time, the display
will show a count-down, minutes and seconds, until the end of the warm-up period, (Figure 3-2).
During the warm-up period, the keypad will be locked. When the warm-up period ends, the LCD will start showing the normal display.
3.1.1 Status Light Display
The POWER, ALARM/WARNING, SILENCE, RELAY 1, RELAY 2 and RELAY 3 status lights indicate the system status and provide
the following data:

POWER
 Green (steady)
 Yellow (steady) – Trouble is indicated by a transducer or the panel itself

ALARM/WARNING
 Off – All indicated gas levels are below the warning level
 Red (steady) – One or more gas levels is at or above the alarm level
 Amber (steady) – One or more gas levels is at or above the warning level

HUSH
 Off –There are no silenced alarms or warnings
 Red (flashing) –There are alarms, warnings and/or troubles that have been silenced (gas levels may or may not

RELAY 1
 Off – Relay 1 is not on
 Green (steady)
D V P - 1 2 0 V e r 1 . 0 7
Figure 3-1 Model Display
! WARNING
D V P - 1 2 0
W a r m - u p
Figure 3-2 Warm-Up display
– Power is good and there are no trouble indications
remain or continue to be at alarm or warning levels)
– Relay 1 is on
V e r . 1 . 0 7
2 : 3 0