System Sensor DH400ACDCP Exploded view of duct detector components, Limitations Of Duct Detectors

[2] Figure 1. Exploded view of duct detector components:

	CONDUIT HOLES
FOAM	INLET SAMPLING TUBE
GASKETS	(SUPPLIED SEPARATELY)

TUBE

END

PLUG

O-RINGS

DETECTOR BASE

HOUSING

MOUNTING SCREWS

EXHAUST

FILTER ADAPTER

DETECTOR HEAD

SAMPLING TUBE

DUCT DETECTOR

HOUSING

TERMINAL STRIP

PC BOARD

INSULATOR

DUCT DETECTOR

COVER

SAMPLING TUBE

MOUNTING

SCREWS

H0249-00

TEST MAGNET

FILTERS

[3] Contents Of The Duct Detector Kit

1.Complete housing base and cover assembly

2.Two #10 sheet metal mounting screws

3.Two sampling tube filters

4.One test magnet

5.Drilling template

6.Two 5/16 O-rings

7.Two rubber tube bushing seals

8.Four #6 self-tapping mounting screws for the sampling and optional exhaust tube extension

9.One filter adapter

10.One inlet tube end plug 11.Two #10 speed nuts

NOTE: The inlet sampling tube must be ordered sepa- rately. It must be the correct length for the width of the duct where it will be installed. See Table 1 on page 4 to determine the inlet tube required for different duct widths.

[4] Limitations Of Duct Detectors

WARNING

The National Fire Protection Association has established that DUCT DETECTORS MUST NOT BE USED AS A SUB- STITUTE FOR OPEN AREA DETECTOR PROTECTION as a means of providing life safety. Nor are they a substitute for early warning in a building’s regular fire detection system.

System Sensor supports this position and strongly recom- mends that the user read NFPA Standards 90A, 72, and 101. The DH400ACDCP Air Duct Smoke Detectors are listed per UL 268A.

WARNING

This device will not operate without electrical power. Frequently, fire situations may cause an interruption of power. The system safeguards should be discussed with your local fire protection specialist.

WARNING

This device does not sense smoke unless the ventilation system is operating.

CAUTION

For this detector to function properly, it MUST be installed according to the instructions in this manual. Furthermore, the detector MUST be protected from the elements and operated within ALL electrical and environmental specific- ations listed in this manual. Failure to comply with these requirements may prevent the detector from activating when smoke is present in the air duct.

[5] Installation Sequence
Step		Page
[5.1]	Verify duct air flow direction and velocity	2
[5.2]	Drill the mounting holes	3
[5.3]	Secure the detector housing to the duct	3
[5.4]	Install the sampling tube	3
[5.5]	Complete the field wiring	5
[5.6]	Install the filters and check pressure differential	8
[5.7]	Perform detector check	8
[5.8]	Install the cover	8

[5.1] Verify Duct Air Flow Direction And Velocity Model DH400ACDCP detectors are designed to be used in air handling systems having air velocities of 500 to 4000

D400-13-00 2 I56-555-09R