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This section of the manual is intended to help you plan your tasks to complete the installation. Please read this section thor-
oughly, especially if you are installing a SK-FFT for the first time.
2.1 Environmental Specifications
It is important to protect the SK-FFT control panel from water. To prevent water damage, the following conditions should be
AVOIDED when installing the units:
•
Do not mount directly on exterior walls, especially masonry walls (condensation)
•
Do not mount directly on exterior walls below grade (condensation)
•
Protect from plumbing leaks
•
Protect from splash caused by sprinkler system inspection ports
•
Do not mount in areas with humidity-generating equipment (such as dryers, production machinery)
When selecting a location to mount the SK-FFT, the unit should be mounted where it will NOT be exposed to temperatures
outside the range of 0°C- 49°C (32°F-120°F) or humidity outside the range of 10% - 93% at 30°C (86°F) non-condensing.
2.2 Preventing Water Damage
Water damage to the fire fighters phone system can be caused by moisture entering the cabinet through the conduits. Conduits
that are installed to enter the top of the cabinet are most likely to cause water problems. Installers should take reasonable pre-
cautions to prevent water from entering the cabinet. Water damage is not covered under warranty.
2.2.1 Removing the SK-FFT Assembly from the Housing
If it should ever be necessary to remove the control panel assembly from the cabinet for repair, do so by removing the screws
that hold the control panel in to the cabinet. Do not attempt to disassemble the circuit boards.
2.3 SK-FFT Board Layout
Figure 2.1 illustrates the SK-FFT board layout and terminal information.
Mounting stud
Mounting stud
Power Status LED
Non Power
Trouble
Limited
Relay
mounting stud
8
Section 2: Prerequisites for Installation
PZT
DIP Switch
Status LED's
All circuits inherently power limited except
the trouble relay
Connector for FFT-24
JumpStart
mounting stud
mounting stud
Figure 2.1 SK-FFT Back View
Model SK-FFT Manual — P/N 54711:B2 12/18/2020
Accept
mounting stud
Phone In
Phone Out
SLC IN
SLC Out
Not used
DC
Power
Local
Handset
Supervised
Power Limited
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