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3
FUNCTIONAL TEST
Perform a functional (Go, No-Go) test by activating the
detector using the following test gases:
·
Smoke Sabre, P/N SMOKESABRE-01-001
·
Smoke Centurion (M8), P/N M8-001-024
·
Solo A5 Smoke Detector Tester Gas
P/N SOLOA5 001
·
Solo A10, P/N SOLO A10 / A10s
·
Testifire 1001 / 2001, P/N TS3-001
·
HSI PurCheck, P/N HO-30S
·
HSI SmokeCheck™, P/N HO-25S
Follow the instruction on the gas canister label. This test
is simply used to ensure that smoke can enter the
sensing chamber and alarm the control panel when the
detector reaches the programmed obscuration
(concentration) level.
The OH921 detectors can also be tested individually
using the DPU.
Refer to the DPU Manual, P/N 315-033260.
MAINTENANCE
The control unit automatically indicates the trouble
message for the OH921 detector whose smoke chamber
changes to the level where the set sensitivity cannot be
maintained. In such circumstances, the detector may
require replacement.
CAUTION
Under no circumstances is the detector head to be
disassembled.
No repairs should be attempted.
DO NOT PAINT
The detector is marked DO NOT PAINT. This is intended
to prohibit painting during routine maintenance of the
occupancy which can affect proper operation of the
detector.
Polarity insensitive wiring:
Figure 2
Isolator mode wiring:
Figure 3
Wire size: maximum 14 AWG, minimum 18 AWG (Wire larger than 14 AWG can damage the connector)
TO INITIATING CIRCUIT
OF SIEMENS COMPATIBLE
CONTROL UNIT
OPTIONAL
REMOTE
ALARM
INDICATOR
MODELS
8727W / 8727C /
RL-HW / RL-HC
TO NEXT BASE
TO NEXT BASE
DO NOT USE AN
END OF LINE DEVICE
DETECTOR BASE
MODEL DB-11/DB-11E
LINE 1 *
LINE 2 *
5
6
1a
TB1
TB3
TB2
1b
5
6
1a
1b
** The relay contacts are shown after System reset, which represents the non-alarm condition.
* OH921 is a polarity insensitive detector. Line 1 and Line 2 can be either line of the loop.
5+
NO
C
NC
6-
RELAY
**
CONTACTS
3A, 120 VAC
3A, 30 VDC
DO NOT USE AN
END OF LINE DEVICE
OPTIONAL
REMOTE
ALARM
INDICATOR
MODELS
8727W / 8727C /
RL-HW / RL-HC
TO NEXT BASE
TO NEXT BASE
DO NOT USE AN
END OF LINE DEVICE
DETECTOR BASE
MODEL DB-11/DB-11E
LINE 1
LINE 2
5
6
1a
TB1
TB3
TB2
1b
5
6
1a
1b
* The relay contacts are shown after System reset, which represents the non-alarm condition.
5+
NO
C
NC
6-
RELAY
*
CONTACTS
3A, 120 VAC
3A, 30 VDC
DO NOT USE AN
END OF LINE DEVICE
+
+
–
–
To initiating circuit of
SIEMENS compatible control unit