Intelligent Products—DH500 Series Intelligent Air Duct Smoke Detector 5
Order the inlet sampling tube and a smoke detector head (1551J for
ionization or an 2551J for photoelectronic) separately. The sampling tube
selected must be the correct length for the width of the duct where it will
be installed. To determine the inlet tube required for different duct widths,
see Table 4: Sampling Inlet Tubes in the Mounting, Mount Duct Housing
section of this technical bulletin.
Figure 1: Duct Detector Housing Kit
F o a m
G a ske t
D e te cto r B a se
E xh a u st F ilte r
A d a p te r
C o n d u it H o le s
D e te cto r H e a d
(S u p p lie d S e p a ra te ly)
S a m p lin g T u b e
F ilte rs
C o ve r
S cre w s
S a m p lin g T u b e
M o u n tin g S cre w s
D u ct D e te cto r
C o ve r
(C le a r P la stic)
T u b e E n d
P lu g
D u ct D e te cto r
H o u sin g
T e rm in a l S trip
P C B o a rd
In su la to r
d h5 0 0 j-1
T e st M a g n e t
In le t S a m p lin g T u b e
(S u p p lie d S e p a rte ly)
O -rin g s
H o u sin g
M o u n tin g S cre w s
