Document Version 1
September 2019
© 2019 Coopers Fire Ltd.
Page
21
of
29
16)
Split Drop Delay (SDD)
If the Alarm is reset while the curtain is at the Split Drop position, the curtain will retract without the
need to deploy fully first. This may require a manual reset depending on the setting entered in Step
15.
SDD is comprised of 3 settings:
Split Drop Delay
On or Off
Activate or deactivate Split Drop Delay.
SDD Drop Time
Time in secs
Deployment time from fully retracted position.
SDD Pause Time
Time in secs
Hold time before continuing deployment.
To activate Split Drop Delay
Use the
↑
and
↓
buttons to navigate the menu and select ‘Split Drop Delay’ by pressing the
OK
button.
Press the
↑
button to switch SDD on and the
↓
button to turn SDD off. Press the
OK
button to exit.
Set SDD Drop Time
Use the
↑
and
↓
buttons to navigate the men
u and select ‘SDD Drop 1/10s’ by pressing the
OK
button.
Use the
↑
and
↓
buttons to adjust the drop time. The drop time is adjustable by 1/10 of a second to
give fine adjustment. Press the
OK
button to exit.
Set SDD Pause Time
Use the
↑
and
↓
buttons t
o navigate the menu and select ‘SDD pause time’ by pressing the
OK
button.
Use the
↑
and
↓
buttons to adjust the ‘pause’ time. Press the
OK
button to exit.
The required setting for the height and ‘pause’ time of SDD will generally be advised
within the fire strategy and will take into account variables such as the number of
occupants and pre-movement times. If no details have been provided, contact the Project
Manager.
17)
Half Drop Delay (HDD)
HDD is not available with Double Knock.
HDD allows the curtain to deploy to a set height but unlike SDD, the curtain will remain in this
position until a second activation signal is received.
HDD is only available as Alarm as first activation signal, either Detector as the second
activation signal.
If the Alarm is reset while the curtain is at the Half Drop position, the curtain will retract without the
need to deploy fully first. This may require a manual reset depending on the setting entered in Step
15.
The
SDD ‘On/Off’ setting does not affect the HDD function.
Use the
↑
and
↓
buttons to navigate the menu and select ‘Half Drop?’ by pressing the
OK
button.
