D440-03-00 2 I56-758-05
© System Sensor 1997
Three-Year Limited Warranty
System Sensor warrants its enclosed remote test station to be free from de-
fects in materials and workmanship under normal use and service for a
period of three years from date of manufacture. System Sensor makes no
other express warranty for this remote test station. No agent, representa-
tive, dealer, or employee of the Company has the authority to increase or
alter the obligations or limitations of this Warranty. The Company’s obli-
gation of this Warranty shall be limited to the repair or replacement of any
part of the remote test station which is found to be defective in materials
or workmanship under normal use and service during the three year pe-
riod commencing with the date of manufacture. After phoning System
Sensor’s toll free number 800-SENSOR2 (736-7672) for a Return Authori-
zation number, send defective units postage prepaid to: System Sensor,
Repair Department, RA #__________, 3825 Ohio Avenue, St. Charles, IL
60174. Please include a note describing the malfunction and suspected
cause of failure. The Company shall not be obligated to repair or replace
units which are found to be defective because of damage, unreasonable
use, modifications, or alterations occurring after the date of manufacture.
In no case shall the Company be liable for any consequential or incidental
damages for breach of this or any other Warranty, expressed or implied
whatsoever, even if the loss or damage is caused by the Company’s negli-
gence or fault. Some states do not allow the exclusion or limitation of inci-
dental or consequential damages, so the above limitation or exclusion may
not apply to you. This Warranty gives you specific legal rights, and you
may also have other rights which vary from state to state.
24 VDC
AUX POWER
SUPPLIED
BY USER
(100mA
SUPPLY)
DH400
DUCT DETECTOR 24 VAC (+10%, –15%)
FULL WAVE RECTIFIED,
UNFILTERED POWER
MAY BE USED
RTS451KEY
REMOTE TEST STATION
METHOD #1 — AUX POWER LOCATED AT DUCT DETECTOR
TEST
1
2
4
5
(+)
(–) (+)
(–) 3
4
6
7
8
2.8 VDC
IN ALARM
(–)
(+)
24 VDC
AUX POWER
SUPPLIED
BY USER
(100mA
SUPPLY) TEST
1
2
4
5
(+)
(–)
(+)
(–)
3
4
6
7
2.8 VDC
IN ALARM
(–)
(+)
24 VAC (+10%, –15%)
FULL WAVE RECTIFIED,
UNFILTERED POWER
MAY BE USED
RTS451KEY
REMOTE TEST STATION DH400
DUCT DETECTOR
METHOD #2 — AUX POWER LOCATED AT TEST STATION
A78-2351-10
Figure 2. RTS451KEY wiring diagram for DH400ACDC,
stand-alone configuration (See Note 1 for use with
FACP):
NOTE 1: When utilizing an FACP, trouble contacts (10 and
11) should be wired as shown in Figure 6 of the
DH400ACDC installation manual. The
RTS451KEY supervisory terminal (6) should not
be used.
A78-2609-01
Figure 3. RTS451KEY wiring diagrams for DH400:
NOTE: Terminal 6 of the RTS451KEY is not used when
wired to a 2-wire detector.
5
6
3
4
ALARM (+)
AUX POWER (–)
RESET (–)
TEST (–)
7
1
2
4
3
5
RESET
TEST
6
DH400ACDC
Duct Smoke Detector RTS451KEY
Remote Test Station
SIGNAL
AUX POWER (+)
SUPERVISORY
CONTACTS
11
10
{
See Note 1
Figure 4. Test Coil installation:
NOTE: Test coil is NOT used with some detectors. Please
refer to the detector installation manual for more
information.
DETECTOR
HEAD
TEST COIL
A78-1994-01
Wiring Instructions
Consult the appropriate detector installation instructions
for the applicable wiring diagram. The RTS451KEY mounts
to a single gang box (21/2˝ minimum depth).
In Canadian applications, the RTS451KEYA is intended to
be located in the same room as the smoke detector and
within 60 feet of the unit.
