Intelligent Products—DH500 Series Intelligent Air Duct Smoke Detector 27
g.
Replace the screen by aligning the arrow on top with the field
test slot on the base of the detector.
h.
Press the screen into place. It should fit tightly into the
chamber.
c o v& s c r5
R em ovable
H ead C over
C le anab le S c ree n
P /N R S 2 4 (w /o Th erm al)
R S 2 4T (w /The rm al)
T es t Slot
V an ed C ham ber
H ead Cover
R emoval S lot
Figure 11: Exploded View of the Photo Head
Ionization Intelligent Detectors
a.
Remove the detector cover by depressing the three lock prongs
on the top of the cover (Figure 12).
b.
Rotate the cover counterclockwise to remove the cover and
screen assembly. The CRT400 cover removal tool makes the
cover removal easier.
c.
Carefully pull the screen out of the cover.
d.
Clean the screen thoroughly with a soft brush or vacuum.
Replacement screens are available, Part Number RS14.
