System Sensor D2 - Manual (Page 4)

tor housing, and the LOW side of the transmitter to the exhaust tube of the
duct smoke detector housing. Measure and record the voltage drop across the
1000Ω resistor (measurement 2). Subtract the voltage recorded in measure-
ment 1 from the voltage recorded in measurement 2. If the difference is greater
than 0.15 volts, there is enough air flow through the duct smoke detector for
proper operation.
fIgURE 5. PROCEDURE fOR VERIfyINg AIR fLOw:
HIGH LOW
9 VOLT
BATTERY
9 VOLT
BATTERY
9 VOLT
BATTERY
TO SAMPLING TUBE
TO EXHAUST TUBE
DIFFERENTIAL
PRESSURE
TRANSMITTER
MODEL #607-01
15 TO 36
VDC SUPPLY
1000 OHM 5%
1 WATT RESISTOR
VOLT METER FLUKE
MODEL 87 OR
EQUIVALENT
+ –
H0163-01
[8] fIELD wIRINg; INSTALLATION gUIDELINES
All wiring must be installed in compliance with the National Electrical Code
and the local codes having jurisdiction. Proper wire gauges should be used.
The conductors used to connect smoke detectors to control panels and acces-
sory devices should be color-coded to prevent wiring mistakes. Improper con-
nections can prevent a system from responding properly in the event of a fire.
For signal wiring, (the wiring between interconnected detectors or from detec-
tors to auxiliary devices), it is recommended that single conductor wire be no
smaller than 18 gauge. The duct smoke detector terminals accommodate wire
sizes up to 12 gauge.
Smoke detectors and alarm system control panels have specifications for al-
lowable loop resistance. Consult the control panel manufacturer’s specifica-
tions for the total loop resistance allowed for the particular model control
panel being used before wiring the detector loop.
[8.1] wIRINg INSTRUCTIONS
The D2 detectors are designed for easy wiring. The housing provides a ter-
minal strip with clamping plates. Wiring connections are made by sliding the
bare end of the wire under the plate, and tightening the clamping plate screw.
See Figure 6 below for system wiring.
[9] DETECTOR STATUS INDICATION
Detector status is indicated by the LED’s on the sensor. Refer to table below
for more details.
SS-300-014 4 I56-3050-004R
Status Sensor LEDs Designation Description/Trouble Shooting
Sensor
Initialization
Alternating red blink every
5 seconds
At power up the sensor will take approximately 30 seconds to inialize. Also occurs when
sensor is removed during a seven minute delay.
Standby
Simultaneous red blink every
5 seconds
The LED on the sensor should flash approximately every 5 seconds. If the sensor LEDs
are not illuminated, then the detector lacks power (check wiring, panel or power supply).
Maintenance Not illuminated
The sensor is outside of its sensitivity limits and shall be cleaned or replaced.
See Section 10.3 for details.
Alarm Solid Red The unit is in alarm.
TABLE 2. DETECTOR STATUS INDICATIONS
(+) IN (+) OUT
(+)
(+)
(–)
(–)
1ST DETECTOR
IN LOOP D2
(–)
RA400Z (OPTIONAL)
REMOTE ALARM LED
4.4 VDC NOM.
IN ALARM
(+) IN (+) OUT
(+)
(+)
(–)
LAST DETECTOR
IN LOOP D2
(–)
RA400Z (OPTIONAL)
REMOTE ALARM LED
4.4 VDC NOM.
IN ALARM
E
O
L
R
STYLE D OPTIONAL WIRING
UL/FM LISTED
COMPATIBLE 2-WIRE
CONTROL PANEL
ALARM
INITIATION
LOOP
(+)
(–)
EOL RESISTOR
SPECIFIED
BY PANEL
MANUFACTURER
RA
RA
RA
RA
(–)
~~
~~
(+) IN (+) OUT
(+)
(+)
(–)
(–)
2ND DETECTOR
IN LOOP D2
(–)
RA400Z (OPTIONAL)
REMOTE ALARM LED
4.4 VDC NOM.
IN ALARM
RA
RA
~~
~~
fIgURE 6. SySTEM wIRINg DIAgRAM fOR D2 2-wIRE DUCT SMOkE DETECTORS
(DETECTORS POwERED fROM INITIATINg CIRCUIT):
CAUTION
Do not loop wire under terminals when wiring detectors. Break wire runs to provide system supervision of connections.
H0564-01