Siemens OOH941 Installation Instructions Manual Download Page 7

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Special Application

The Special Applications (Telecommunications) selectable application profile setting shall be used for
environments and applications that are clean with little or no Deceptive Phenomena. Detectors set to the special
application sensitivity are not suitable for use in areas where cooking appliances may be used or in sleeping areas.
If cooking appliances are used within the protected space a normal application mode or configuration must be used
for that area. A normal application mode is other than indicated as Special Application in the “Selectable
Application Profiles” table located in this document. The detector default sensitivity setting is for a normal standard
“office” environment.  The special applications setting incorporates a pre-alarm and sensitive alarm levels to
provide a Very Early Waring Fire Detection (VEWFD) alarm level for applications to avoid business disruption.

Typical suitable applications for the special applications Telecommunications’ application profile include:

Telecommunications, Data Centers, IT rooms, Clean Rooms, Laboratories and any clean environment.

Applications not suitable for the special application Telecommunication application profile setting:

The special application mode of operation is not for general use and may be more prone to false alarms if used in
unsuitable environments. Unsuitable environments for the special application setting are: hotels, hospitals, nursing
homes, restaurants, kitchens, condo, auto repair shops, parking garages, industrial production facilities,
warehouses, power generation facilities. Any environment or application which may exhibit deceptive phenomena
(dirt, dust, steam or cooking) is not suitable for the special application telecommunications profile setting. Note:
other “non special applications” selectable application 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” environment. For programming and to select the special
application setting / profile (Telecommunications) refer to the specific Siemens compatible fire alarm control panel
operation manual.

In the device line, up to 30 of any compatible devices in polarity insensitive mode with 20 ohms max line resistance
can be isolated between two modules in isolator mode in a Class A Style 6 wiring.
In the device line, up to 30 of any compatible devices in polarity insensitive mode with 20 ohms max line resistance
can be isolated behind one module in isolator mode in a Class B Style 4 wiring.

HLIM isolator module and SBGA-34 sounder base cannot be used in the same loop with the modules in
isolator mode.

FCC Statement

WARNING!

Installation and usage of equipment not in accordance with instructions manual may
result in:

Radiation of radio frequency energy
Interference to radio communications

·

  Install and use equipment in accordance with installation instructions manual

·

  Read the following information

This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in
accordance with the instructions manual, may cause interference to radio communications.
It has been tested and found to comply with the limits for a Class A computing device pursuant to Part 15 of FCC
Rules, which are designed to provide reasonable protection against such interference when operated in a
commercial environment.
Operation of this equipment in a residential area is likely to cause interference in which case the user at his own
expense will be required to take whatever measures may be required to correct the interference.

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 ...

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