OPERATOR MANUAL // SECTION 2
INSTALLATION
HONEYWELL
16
2.1.4
Power Supply Considerations
The Model SS4-AS/-AS2 Detector uses 24 Volts DC at a maximum current of
75 mA (with the 4-20 mA option the maximum supply current is 95 mA). Make
sure the Panel's power supply can withstand the load current of the total number
of Detectors connected to it. For example, if 10 (ten) Model SS4-AS/-AS2
Detectors are connected to a single Panel's power supply (multiplying 75 mA by
10), the power supply must be able to withstand at least 750 mA + 10% (0.75 A +
10%). This load current must also be taken in consideration for calculating the
Panel's 24-hour power backup requirements.
2.2
Installation Procedure
2.2.1
Configuring and Wiring Detectors
To configure and wire a Model SS4-AS/-AS2 Detector, or to replace the
Detector module, the module must be removed from the enclosure. After the
configuration settings and wiring connections have been completed, the module
should soon be re-installed in the enclosure to avoid contamination from the
environment.
NOTE
:
Avoid touching the Detector sensors at the front of
the Detector module.
If touched accidentally, they should be cleaned
per instructions of Section 3.2.
2.2.2
Removing Detector From Its Enclosure.
a.
With electrical power off (verify that electrical power is off by making sure
that the Detector's LEDs do not blink for at least 15 seconds), loosen the
Allen-head screw at the base of the metal enclosure top lens cover.
b.
Remove the cover and set it aside along with the "O" ring avoiding
contamination.
c.
Loosen the three Philips head captive screws located on the top circuit
board.
d.
Carefully lift out the module, sliding it along the three metal standoffs.
2.2.3
Configuring the Detector Module.
Set the DIP switches located on the center PC board of the Detector module to
desired settings. Refer to Section 1.5 and Table 2 for DIP switch settings.
