background image

9

P/N 315-049708FA-4

Figur

e 6

Typical Connections f

or

 the 87

41 / 87

43 Using 87

10

 and 87

13

 Detector

s

N

O

TES:

1.

The r

ela

y cont

acts ar

e sho

wn af

ter

 a r

eset pulse,

 whic

h repr

esents the non-alarm condition.

2.

R

ef

er

 to the 8727W / 8727C Inst

allation Instr

uctions,

 P/N 31

5-033230F

A.

3.

The gr

een gr

ounding scr

ew

 in the wiring compartment of the air

 duct housing is not used.

LINE

2

LINE

1

NOT USED

LINE 1 OR 2

TO REMOTE TB1

OTHER LINE

TO REMOTE TB3

COM

NO

NC

NO

DEVICE

LOOP

OTHER

LINE

LINE

1O

R2

RELA

Y

ALARM

COM

NC

COM

NO

NC

TB2

(6

or

5)

TB3

(5

or

6)

TB1

(1A)

TB1

TB1

TB1

MODEL

8741

MODEL

8743

MODEL

8743

8710

8713

OPTIONAL

REMOTE

ALARM

INDICA

T

O

R

MODEL

8727C

OR

8727W

SEE

NOTE

2

LOOP

WIRES.

SEE

COMP

A

TIBLE

CONTROL

EQUIPMENT

T

ABLE.

8710

8713

T

O

NEXT

ADDRESSABLE

DEVICE

ALARM

CONT

ACTS

125

V

AC,

24

VDC,

2.5A

SEE

NOTE

1

ALARM

C

ONT

ACTS

125

V

A

C,

24

VDC,

2

.5A

SEE

NOTE

1

NO

DEVICE

LOOP

OTHER

LINE

LINE

1O

R2

RELA

Y

ALARM

COM

NC

8710

8713

TO REMOTE TB2

If the r

ela

y cont

acts

ar

e being used to

contr

ol 1

20 

VA

C

oper

ated eq

uipment,

ensur

e that the

conduit is pr

operly

at

ta

ched to the

internal metal

gr

ound str

ap,

 using

the pr

oper

 conduit

loc

king nuts.

  

Failur

e

to

 pr

o

vide pr

oper

g

rounding ma

y

result in f

atal

electrical shoc

k

and violation of

national and local

codes.

Summary of Contents for 8742

Page 1: ...c see char har har har harts on the page ts on the page ts on the page ts on the page ts on the page 1 1 1 1 12 of this manual 2 of this manual 2 of this manual 2 of this manual 2 of this manual TECHN...

Page 2: ...detector is equipped with cover removal switch SW1 that instantly provides a trouble condition upon removal of the clear cover For all testing and inspection with the cover removed the cover removal...

Page 3: ...R PLENUM FRESH AIR INTAKE DAMPER D D Figure 1 Typical Mounting of Duct Housing OUTLET TUBE INPUT SAMPLING TUBE CENTER LINE OF DUCT C L MOUNTINGTHE AIR DUCT HOUSING Location on Duct System This guideli...

Page 4: ...m 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...

Page 5: ...be cut to length and must span at least 80 the width of the duct Sampling tubes over 3 0 must be supported on the opposite side of the duct To ensure the correct operation the red stopper stopper in i...

Page 6: ...d the duct unit assembly in position and use 2 12 X 3 4 sheet metal screws packaged in the installation kit to secure the duct smoke detector to the HVAC duct sheet metal Air Duct Sampling Tube Pressu...

Page 7: ...e loop Note any limitations on the number of detectors and restrictions on the use of remote devices permitted for each circuit When replacing a detector with a different model be aware that existing...

Page 8: ...the initiating circuit 3 Do not use looped wire under base terminal 4 Break wire run to provide supervision of connection 5 The green grounding screw in the wiring compartment of the air duct housing...

Page 9: ...6 or 5 TB3 5 or 6 TB1 1A TB1 TB1 TB1 MODEL 8741 MODEL 8743 MODEL 8743 8710 8713 OPTIONAL REMOTE ALARM INDICATOR MODEL 8727C OR 8727W SEE NOTE 2 LOOP WIRES SEE COMPATIBLE CONTROL EQUIPMENT TABLE 8710 8...

Page 10: ...zle model AD TGN purchased separately available from Siemens Industry Inc insert the test gas nozzle into the hole in the red test plug in the unit cover Press can against cover for about 1 2 second t...

Page 11: ...F ed Farada arada arada arada araday S y S y S y S y Service R ervice R ervice R ervice R ervice Represent epresent epresent epresent epresentat at at at ati i i i ive ve ve ve ve If the fire alarm sy...

Page 12: ...P M 0 0 0 6 C P M 5 A F 0 5 8 4 3 0 5 1 3 N P 1 0 4 W L 3 A F 7 9 9 5 9 0 5 1 3 N P 1 0 4 W L A 4 E Z W L 4 A F 8 1 0 6 9 0 5 1 3 N P 1 0 4 W L A 8 E Z W L 3 A F 2 2 0 6 9 0 5 1 3 N P R O T C E T E D...

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