Edwards Signaling ReadySet - Manual (Page 17)

Chapter 2: Product description
ReadySET Aspirating Smoke Detection System Installers Handbook 9
(5) FLOW: Illuminates to indicate an airflow fault. This may be due to blocked or broken pipes, although
it can also occur if, for example, factory warehouse doors are opened on a windy day, a large
pressure change occurs, or if industrial air conditioning turns on. Another possible cause is that the
aspiration fan connection cable is damaged or disconnected.
(6) FILTER: Illuminates to indicate that the detector’s filter needs to be changed.
(7) HEAD: Illuminates to indicate a problem with the detector laser chamber, as might be caused by the
laser head connecting cable being damaged or disconnected. It can also be caused by certain kinds
of internal system faults, which appear in the detector’s event log as “process errors.”
Note: If the FAULT LED is illuminated but none of the additional LEDs are lit, it indicates a problem
with the power supply if its fault output is connected to the detector’s INPUT terminals.
Inside the detector
Figure 2 below shows the main interior parts of a detector with the cover off.
Figure 2: ReadySET internal components
(1) Two holes for conduit connection. There are two 3/4 in. drilling guides provided on the top of the
detector and one on the bottom providing holes for conduit.
(2) Pipe entries provide a connection for 3/4-inch pipe. A 3/4 in. male to 25 mm female adapter is
required when using larger than 1 inch (27 mm) O.D. pipe.
Note: Do not glue pipes into the detector to allow for future removal.
(3) Aspirating fan connector lead: If this lead is broken or not connected, the fan will not turn and the
detector will indicate a FLOW fault.
(4) Main PCB: No user-serviceable parts.