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Siemens FDBZ492-PR Installation Instructions Manual Download Page 4

P/N A6V10330327_a_en

Siemens Industry, Inc.
Building Technologies  Division

4

confirmation of velocity and pressure differential within
specifications is required.

The pressure differential between the input sampling (high
pressure) tube and outlet (low pressure) tube for the
FDBZ492-PR smoke duct detector should be greater than
0.01 inches of water and less than 1.2 inches of water.

3)

Identify a code compliant location (supply or return side, or
both) for the installation of the duct unit that will permit
easy access for viewing and serviceability.

4)

When installing on the return side, install duct units prior to
the air being exhausted from the building or diluted with
outside “fresh” air.

5)

When installing duct smoke units downstream of filters,
fires occurring in the filters will be detected, but if the filters
become blocked, insufficient air flow through the duct unit
will prevent the correct operation of the duct detector. Duct
units installed in the supply air side may monitor upstream
equipment and/or filters.

Figure 2

Recommended Locations in Duct Systems

RETURN

AIR

SUPPLY

AIR

AIR DUCT
HOUSING

AIR DUCT
HOUSING

DAMPER

BLOWER

FILTER

PLENUM

FRESH AIR INTAKE

DAMPER

TYPE A: CLOSED SYSTEM - NO EXHAUST

D

D

TYPE B: PROVISION FOR EXHAUSTING

SOME PERCENTAGE OF RETURN AIR

RETURN

AIR

SUPPLY

AIR

AIR DUCT
HOUSING

AIR DUCT
HOUSING

DAMPER

DAMPER

BLOWER

FILTER

PLENUM

FRESH AIR INTAKE

DAMPER

D

D

EXHAUST AIR

OUTPUT

DAMPER

TYPE C: RETURN AIR UNDER POSITIVE PRESSURE

FROM SEPARATE BLOWER

EXHAUST AIR

OUTPUT

DAMPER

RETURN

AIR

SUPPLY

AIR

AIR DUCT
HOUSING

RETURN AIR

BLOWER

AIR DUCT
HOUSING

DAMPER

DAMPER

BLOWER

FILTER

PLENUM

FRESH AIR INTAKE

DAMPER

D

D

Figure 1

Typical Mounting of Duct Housing

OUTLET

TUBE

INPUT

SAMPLING

TUBE

CENTER

LINE

OF DUCT

CL

Summary of Contents for FDBZ492-PR

Page 1: ... of products of combust control of products of combust control of products of combust control of products of combust control of products of combustion in a duct sy ion in a duct sy ion in a duct sy ion in a duct sy ion in a duct syst st st st stem em em em em They are They are They are They are They are not to be used as a subst not to be used as a subst not to be used as a subst not to be used as...

Page 2: ... A 92A R A 92A R A 92A Recommended P ecommended P ecommended P ecommended P ecommended Pract ract ract ract ractice for ice for ice for ice for ice for Smok Smok Smok Smok Smoke Control e Control e Control e Control e Control S S S S Sy y y y yst st st st stems ems ems ems ems This unit is not intended for open area protection nor should it be used for early warning detection or to replace a regul...

Page 3: ...a e l b u o r t n i s i r o t c e t e D 5 1 1 E P 4 5 8 8 C 1 1 E P 1 2 1 P O d e R m r a l A 2 1 1 E P 4 5 8 8 C 1 1 E P s e h s a l F o N r i a p e r s e r i u q e r r o d e r e w o p t o n s i r o t c e t e D _ _ 1 2 1 P O s e h s a l F o N r o d e r e w o p t o n s i r o t c e t e D d e d e e n s i t n e m e c a l p e r _ _ MOUNTINGTHE AIR DUCT HOUSING Location on Duct System This guideline co...

Page 4: ...lters will be detected but if the filters become blocked insufficient air flow through the duct unit will prevent the correct operation of the duct detector Duct units installed in the supply air side may monitor upstream equipment and or filters Figure 2 Recommended Locations in Duct Systems RETURN AIR SUPPLY AIR AIR DUCT HOUSING AIR DUCT HOUSING DAMPER BLOWER FILTER PLENUM FRESH AIR INTAKE DAMPE...

Page 5: ... duct widths of 3 0 to 5 0 requires support ST 100 For duct widths of 5 0 to 10 0 requires support This model is supplied as two 5 ft sections with a coupling Assembly is required for installation Eac Eac Eac Eac Each model is manufact h model is manufact h model is manufact h model is manufact h model is manufactured with a dif ured with a dif ured with a dif ured with a dif ured with a different...

Page 6: ...aining position Once the tube is installed rotate the retainer back into place and tighten screw Mounting After securing the input and outlet tubes to the duct smoke unit or initially placing the tubes through the 1 holes drilled or punched in the HVAC duct to accept the input and outlet tubes and then attaching them to the duct unit hold the duct unit assembly in position and use 2 12 X 3 4 sheet...

Page 7: ...r each circuit Do not use looped wire under Do not use looped wire under Do not use looped wire under Do not use looped wire under Do not use looped wire under t t t t terminals erminals erminals erminals erminals Break wire run to Break wire run to Break wire run to Break wire run to Break wire run to pro pro pro pro provide for vide for vide for vide for vide for proper proper proper proper prop...

Page 8: ... a m r o n n i n e p O t c a t n o c O N y a l e r e l b u o r T 0 1 B T 0 1 T C E N N O C R E T N I E T O M E R S E I R O S S E C C A T N C L T R t s e t o t C D V 4 2 y l p p A m r a l a t s e T 1 1 B T e l b u o r t s t c e t e d t i n u n e h w C D V 4 2 s e t o m e r r o f t u p t u o e l b u o r t t n e r r u c w o L 2 1 L T R C d n u o r G 3 1 L T R C t u p t u o C D V 4 2 4 1 1 L A d e t c...

Page 9: ...sponse See Figure 5 for terminal block connections EOL End of Line for Specific FACP FDBZ492 PR FDBZ492 RTL C RTL GREEN RED LED RTL CNT C RTL KEY SWITCH NORMAL TEST 5 6 1b See Figure 5 for terminal block connections AL1 AL1 FACP NO FACP NO C C C C FACP COM FACP COM FDBZ492 PR 1 FDBZ492 PR X All alarm relays operate with single alarm Individual horn strobe units operate on alarmed detector only 30 ...

Page 10: ...vityTest The detectors monitor their smoke sensitivity automatically and require no test equipment A green flash of the detector LED or in the FDBZ492 RTL Remote Accessory indicates that the smoke sensitivity is within its listed limits FunctionalTest SmokeTesting UsingTG 11 smoke test canister with testing nozzle model AD TGN purchased separately available from Siemens Industry Inc insert the tes...

Page 11: ... PE 1 PE 11C or 1C or 1C or 1C or 1C or 8853 to be disassembled by an 8853 to be disassembled by an 8853 to be disassembled by an 8853 to be disassembled by an 8853 to be disassembled by any y y y yone other one other one other one other one other than an than an than an than an than an authoriz authoriz authoriz authoriz authorized Siemens Industry ed Siemens Industry ed Siemens Industry ed Sieme...

Page 12: ...P 3 M E T S Y S 5 3 P C 2 2 2 0 9 4 8 0 5 1 3 N P Q I L X M L X M 6 B 1 M Z C 9 5 5 3 5 9 0 5 1 3 N P Q I L X M L X M 4 M Z C 0 1 6 2 8 0 9 0 5 1 3 N P M Z H 1 0 9 C F 4 2 9 C F 2 2 9 C F 5 0 0 2 C F 5 2 0 2 C F 0 5 0 2 C F 0 5 2 S F S L X r e d n i F e r i F 6 0 5 8 4 3 0 5 1 3 N P X E L X S 8 7 9 9 5 9 0 5 1 3 N P X E L X S X 4 E Z S 8 8 1 0 6 9 0 5 1 3 N P X E L X S X A 8 E Z S 8 2 2 0 6 9 0 5 ...

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