Siemens OOH941 Installation Instructions Manual Download Page 5

A6V10324659_en--_j

5

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)

FROM ADDRESSABLE
DEVICE CIRCUIT OF A
COMPATIBLE CONTROL

UNIT OR PREVIOUS
ADDRESSABLE 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.

* OOH941 is a polarity insensitive detector. Line 1 and Line 2 can be either line of the loop.

5

NO

C

NC

6

SUPERVISED AND POWER LIMITED

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

Summary of Contents for OOH941

Page 1: ...s area is protected adequately by each smoke detector This is why it is mandatory to closely follow the installation drawings In all installations place the detector on the ceiling a minimum of 6 inches from a side wall or on a wall 12 inches from the ceiling For thermal detection use the matrix below Spacing Feet Temperature Rating F With without Guard Model 50 135 145 155 165 175 With and withou...

Page 2: ...hapter for High Air Movement Areas and Control of Smoke Spread The detectors can also be installed in duct applications between 0 and 4000 ft min For duct installations follow detector installation requirements in NFPA 90A Chapter for Special Ceiling Construction Factors When the detectors employ a fixed temperature rating of 165 F 74 C or less they are intended for a maximum installation temperat...

Page 3: ...sure that the panel supports Isolator mode for the OOH941 product version 30 Isolator mode must not be used with a OOH941 product version 30 You will find the product version number on the detector label DETECTOR MOUNTING The recommended orientation of the detector for wall mounting is shown in Figure 4 To ensure proper installation of the detector head into the base be sure the wires are properly...

Page 4: ...welding electrical arcing present Some airborne deceptive phenomena contaminant present Hospital Controlled clean environment High level risk Some exposure RF generating equipment Exposure to cleaning solvents Health Care Higher level risk relatively clean electronic equipment Some chemical and cleaning vapor exposure Dormitory Airborne dust and temperature changes living quarters Cooking fumes sm...

Page 5: ...shown after System reset which represents the non alarm condition OOH941 is a polarity insensitive detector Line 1 and Line 2 can be either line of the loop 5 NO C NC 6 SUPERVISED AND POWER LIMITED 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 BA...

Page 6: ...e can enter the sensing chamber and alarm the control panel when the detector reaches the programmed obscuration concentration level The OOH941 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 OOH941 detector whose smoke chamber changes to the level where the set sensitivi...

Page 7: ... profiles settings are available and suitable for these and other applications See the table titled Selectable Application Profiles table in this document for options and application descriptions Failure to follow these guidelines may result in unwanted nuisance alarms Method to configure the detector s special application sensitivity The detector default sensitivity is for a standard office envir...

Page 8: ...rham Park New Jersey 07932 www siemens com buildingtechnologies Siemens Canada Limited Smart Infrastructure 2 Kenview Boulevard Brampton Ontario L6T 5E4 Canada Siemens Industry Inc Data and design subject to change without notice A6V10324659_en _j P N A5Q00044198 ...

Reviews: