Intelligent Products—DH500 Series Intelligent Air Duct Smoke Detector 19
Figure 6: Wiring Diagram
Most duct installations are subject to dust accumulation. Detector housing
filters remove a large percentage of this contamination, but cannot remove
all of it. Dust inside the duct detector causes problems.
●
Very fine particles of dust can enter the detector sensing chamber and
cause the unit to go into alarm.
●
The accumulation of dust and dirt necessitates a more frequent
periodic cleaning schedule, which can result in substantial cost and/or
down time.
Disposable sampling tube filters can greatly reduce the nuisance alarms
caused by dust, and can also significantly extend the maintenance interval.
To install the sampling tube filters:
1.
Press the filter adapter into the exhaust tube.
2.
Push the filter onto the adapter tube on the left (Figure 7).
3.
Install the other filter over the end of the inlet sampling tube.
4 5 6 7 8 9 1 0 11 12 1 3 1 4 15 16 1 7
A lw a ys ru n a uxiliary co ntro l
w irin g in se pa ra te con du it.
C o m m un ica tion
Line
F ro m P a ne l
C o m m u nica tion
L ine to R ese t
of S ystem
1
Jum per
J5
K 2
2
3
N ote: F or pow er supply w ires,
pola rity is no t im portan t.
Ju m p e r w ire (J5 )
is re q u ire d to b e
in ta ct fo r 2 -w ire
a p p lica tio n s o n ly.
C u t J5 fo r 4 -w ire
p o w e r su p e rvisio n .
24 0 V A C
12 0 V A C
D uct D etector
D H 500J
A larm Signal
2
6
A U X P ow er
R A 400Z
(O ptional)
R em ote (LE D )
A nnunciator
R
E
D
d hfig1 1
N ote : A u xiliary de v ices (R A 4 00 Z , P A 4 00, an d R T S 4 51 ) a nd
au xiliary contro l contacts w ill not functio n w ith ou t au xiliary po w er.
D uct D etector
D H 500J
PA 400
(O ptional)
A udible A lert
A la rm S ig na l
2
6
A U X P ow er
N o te :
N o te :
A larm Signal
2
6
D uct D etector
D H 500J
R T S 45 1 (O ption al)
R em ote T est S ta tio n
T est
R
E
D
A U X P ow er
1
2
3
4
5
3
1
A U X P ow er
T est
T est
R e se t
(N o t U se d )
T h e R T S 4 5 1 re se t
ca n n o t b e u se d o n th e D H 5 0 0 J.
Install the Filters
