Genesis SHERLOCK 102, Руководство по эксплуатации

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44-00-0297 SHERLOCK 102/202 REV. 4.1 05-02-15
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Machine rooms with cycling exhaust fans:
Position the sensor about waist high, below the fan. DO
NOT mount the sensor in the fanhousing. The sensor set-
back should be assigned to any sensors mounted in a high
air flow path. A dry contact from the fan relay or a sail
switch will be needed to switch the
SHERLOCK 2-Series
to the SETBACK mode.
Refrigeration pits piping troughs:
Position the sensor at least 12 inches above the lowest
point. If the piping trough is subject to the effects of the
machine room exhaust, use the sensor SETBACK feature.
Return air duct to the HVAC system:
Most any location in the main return duct will pick up leaks
in the sales area of the store. See
NOTE below.
Ammonia, being lighter than air, will rise from the source;
therefore, ammonia sensors should be mounted above and
down wind from the source. Since halocarbon based refriger-
ants are heavier than air, the sensors detecting the presence of
these refrigerants should be located low and down wind from a
potential leak.
NOTE : When the sensor are mounted in an area that has air
of high velocity, measures must be taken to prevent the sensor
from being cooled while still allowing the sensor to sample the
air. One method is to mount the sensor inside a 3” diameter by
9” length plastic sewer pipe. A second method is to mount a
baffle in the air stream just ahead of the sensor. Air flow across
the sensor should never exceed 2 feet per second.
COMPONENT INSTALLATION
8.00"
7.250"
.238” dia Mounting Holes, 3 Places
SHERLOCK 102/202 Control Backplate
(IO Boards, Power Supply)
WARNING: Sensors will be damaged by liquids. Mount the
sensors away from possible contact with any liquid.
Cable Runs .
All cabling must avoid running parallel to high voltage (48VDC
or greater) or any AC voltage wiring. Cable must be greater than
12 inches from high voltage wiring or conduit. Avoid running
cable near all inductive loads, such as motors, fluorescent fix-
tures, transformers. Depending upon local codes, sensor cabling
may be run loose or be placed into conduit used exclusively for
low voltage control wiring.
Sensor cable shall have the minimum specifications:
SOLID STATE SENSOR
For Wiring Runs of 0 to 100 ft
Twisted, Triad (3-wire) - 22 AWG
Belden part number 8443 or 9407 (For shielded applica-
tions - 9363. For Plenum installations - 83395)
For Runs 100 to 1000ft
Shielded, Twisted Triad (3-wire) - 18 AWG
Belden part number 8770 (For Plenum installations-
83335)
INFRARED SENSOR
For Wiring Runs of 0 to 1000 ft
Shielded, Twisted, Triad (3-wire) - 18 AWG
Belden part number 8770 or 9407
Cable wire from other manufacturers with the same specifica-
tions and ratings can also be used.