tor alarms, air is flowing through the detector. Remove the duct
smoke detector cover and blow out the residual aerosol smoke
from the chamber and reset the duct smoke detector. Use duct
tape to seal the aerosol smoke entry hole.
*Aerosol smoke can be purchased from Home Safeguard Indus-
tries, Malibu, CA. Phone: 310/457-5813.
[6.1.3] Smoke Entry Test
To determine if smoke is capable of entering the sensing cham-
ber, visually identify any obstructions. Plug the exhaust and sam-
pling tube holes to prevent ducted air from carrying smoke away
from the detector head, then blow smoke such as cigarette, cotton
wick, or punk directly at the head to cause an alarm. REMEMBER
TO REMOVE THE PLUGS AFTER THIS TEST, OR THE DETECTOR
WILL NOT FUNCTION PROPERLY.
[6.1.4] Air Flow Test using Dwyer Series 607 Differ-
ential Pressure Transmitter
Verify the air speed of the duct using an anemometer. Air speed
must be at least 100 FPM. Wire the Dwyer transmitter as shown
in Figure 7. Connect the leads of the meter to either side of the
1000
Ω
resistor. Allow unit to warm up for 15 seconds. With both
HIGH and LOW pressure ports open to ambient air, measure and
record the voltage drop across the 1000
Ω
resistor (measurement
1), 4.00 volts is typical. Using flexible tubing and rubber stoppers,
connect the HIGH side of the transmitter to the sampling tube of
the duct smoke detector housing, and the LOW side of the trans-
mitter to the exhaust tube of the duct smoke detector housing.
Measure and record the voltage drop across the 1000
Ω
resistor
(measurement 2). Subtract the voltage recorded in measurement
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 7. Procedure for verifying air flow:
DIFFERENTIAL
PRESSURE
TRANSMITTER
MODEL #607-01
HIGH
LOW
TO SAMPLING TUBE
TO EXHAUST TUBE
VOLT METER
FLUKE MODEL 87
OR EQUIVALENT
1000 OHM 5% 1 WATT RESISTOR
9 VOLT
BATTERY
9 VOLT
BATTERY
9 VOLT
BATTERY
15 TO 36VDC
SUPPLY
H0163-01
[6.1.5] Filter Replacement
The filters do not substantially affect smoke performance even
when up to 90% of the filter is clogged. Quarterly visual inspec-
tion usually suffices to determine whether the filters should be
replaced because only a high percentage of contamination affects
performance. If further testing is required, compare differential
pressure readings with and without the filters installed. If the
difference exceeds 10% replace the filters. In no case should the
pressure differential fall below 0.0015 inches of water.
[6.2] Standby, Alarm and Sensitivity Tests
The cover must be removed to perform these tests. The use of
a remote accessory for visible indication of power and alarm
is recommended.
[6.2.1] Standby And Trouble
Standby —
Look for the presence of the flashing green
LED. The LED should flash approximately ev-
ery 10 seconds.
Trouble —
If the detector LED does not flash, then the
detector lacks power (check wiring, panel, or
power supply), the detector board is missing
(replace), the cover has been missing or not se-
cured properly for more than 7 minutes (secure
cover properly), or the unit is defective (return
for repair).
Test —
The trouble condition can be caused inten-
tionally to verify correct operation of the
system. Remove the detector board to cause
a trouble condition locally and at the system
control panel.
Cover Tamper — If the cover is removed or not properly secured
for a period longer than 7 minutes, a trouble sig-
nal is generated to indicate the cover is missing.
[6.2.2] Alarm Tests
[6.2.2.1] M02-04-00 Magnet Test
1. Place the painted surface of the magnet onto the TEST locator
on the bottom of the housing (Figure 14).
2. The red alarm LED on the detector should latch on, as should
any accessories (i.e. RA400Z, RTS451). Verify system control
panel alarm status and control panel execution of all intended
auxiliary functions (i.e. fan shutdown, damper control, etc.).
3. The detector must be reset by system control panel, front
cover reset button, or remote accessory.
[6.2.2.2] RTS451/RTS451KEY Remote Test Station
The RTS451/RTS451KEY Remote Test Station facilitates test of the
alarm capability of the duct smoke detector as indicated in the
RTS451/RTS451KEY manual. The DH100ACDCLP duct smoke de-
tector can be reset by the RTS451/RTS451KEY. If a system control
panel is used, the panel itself may also require testing.
To install the RTS451/RTS451KEY, connect the device as shown
in Figure 10; wire runs must be limited to 25 ohms or less per
interconnecting wire.
Please note that the magnetic coil supplied with the RTS451 and
RTS451KEY is not required when these accessories are used with
the DH100 Series detectors. The functionality of the magnetic coil
has been designed into the circuitry of the new Innovair™ duct
smoke detectors.
[6.2.2.3] SSK451 Multi-Signaling Accessory
The System Sensor SSK451 Multi-Signaling accessory combines
a sounder feature with a key activated test and reset function.
Green, amber and red LEDs provide a visual indication of power,
trouble, and alarm respectively. An optional strobe (PS24LO)
with a smoke lens can be added to conform to the codes of cer-
tain jurisdictions.
To install the SSK451, connect the device as shown in Figure 13.
D200-14-00
5
I56-0084-009R
