Mode 9
Mode 10
OPTIONAL FEATURES
-
A RANGE OF ELECTRO-MECHANICAL CONTROL PANELS
-
VOLT FREE CONTACTS FOR REMOTE INTERFACE
-
REMOTE, ELECTRICAL BLADE STATUS INDICATION PANELS
-
DAMPER MOUNTING TERMINAL BOX FOR MICROSWITCH
AND/OR MOTOR CABLING
-
HEVAC INSTALLATION FRAME/DRY WALL FIXING FRAME
-
ACCESS PANELS
Description
Mode 9 is a fully automatic type of smoke and
fire damper and operates on the basis of fail
safe closure with automatic reset. It has been
designed to close in smoke and fire conditions
upon a failure of the supply voltage to the motor
or in the event of an electro thermal fusible link
separating at a pre-determined temperature
(72°C standard). Volt free microswitches are
included as standard.
Operation
Mode 9 is fitted with a spring return square drive
motor which will hold the damper open for as
long, as the supply voltage is available.
Interruption of this supply will cause controlled
damper closure by way of the motors spring
return operation. In addition however, the
damper is fitted with an electro thermal fusible
link which will fail at a pre-determined
temperature (72°C standard) and close the
damper irrespective of the status of the motor.
An integral test pushbutton on the electro
thermal fuse housing allows for the local testing
of the damper operation.
Motor Control Options
A
: 24V AC or DC supply.
B
: 240V AC supply.
Note: All options are complete with position
microswitches as standard.
Re-set Procedure
Provided the fusible link is intact the damper will
automatically reset after an interruption of the
supply voltage to the motor. The motor will take
approximately 80 seconds to open the damper.
The spring return motor and terminal box (if
fitted) are mounted on the ductwork connection
sleeve. Fully assembled prior to despatch they
require only the external electrical connections
to be made.
Mode 10 performs in exactly the same manner
as the Mode 9 except that the operation is
reversed and the unit is fail safe open. The
motor sets the unit in the full closed position and
the unit will only open in the event of a an
interruption of the supply voltage to the motor or
separation of the thermal fusible link.
Ordering procedure: Back cover
5
DUCTGARD
Duct Mounting Smoke and Fire Control Dampers
