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Wiring Instructions
The 14506873-001 is designed for easy wiring. The housing provides a terminal strip with clamping plates. Wiring con-
nections are made by stripping approximately 3/8-inch of insulation from the end of the wire, sliding this bare end under
the plate, and tightening the clamping plate screw.
The 14506873-001 is built for 120/240 VAC or 24 VAC/DC to operate auxiliary functions. See Figure 5A for operating and
wiring details.
Notes on Jumper Wire J5 (See Figure 5A):
If the jumper wire is cut in a 2-wire application, the unit will not function.
1. When the detector is used in a 4-wire application (relay circuit is being used to control fans, dampers, etc.), jumper
wire J5, located between the two terminal strips on the printed circuit board, must be cut to insure power supply super-
vision.
2. When the detector is used in a 2-wire application (relay control is not being used for any control of fans, dampers,
etc.), jumper wire J5 must be left in place.
120/240 VAC OPERATION
To complete the wiring for 110/120 VAC operation, connect the power supply wires to terminals 15 and 16 (see Figure
5A). If 220/240 VAC operation is preferred, connect the power supply wires to terminals 16 and 17.
24 VAC/DC OPERATION
To complete the wiring for 24 VAC or DC connect the power supply wires to the terminals marked 7 and 8. Polarity is not
important.
STEP 6. INSTALL THE FILTERS
Most duct installations are subject to dust accumulation.
System filters remove a large percentage of this contami-
nation, but cannot remove all of it. Dust inside the duct
detector causes problems. First, very fine particles of dust
can enter the detector sensing chamber and cause the
unit to go into alarm. Second, 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 significant-
ly extend the maintenance interval. To install the sampling
tube filters, simply push the filter adapter into the exhaust
tube, and then push the filter onto the adapter tube on the
left, as shown in Figure 6. Then install the other filter over
the end of the inlet sampling tube.
Caution:
Filters require periodic cleaning or replacement, depending on the amount of dust and dirt accumulated.
Visually inspect the filters at least quarterly; inspect them more often if the dust accumulation warrants it.
Replacement filters can be ordered from Honeywell (exhaust tube/intake tube filter P/N SSDF360500).
The filters do not substantially affect smoke behavior even when they are up to 90% clogged. Quarterly visual inspection
is usually often enough to determine if filters should be replace because only a high percentage of contamination affects
duct detector performance.
H500-03-00
INLET SAMPLING TUBE
FOAM GASKET
DETECTOR BASE
EXHAUST
FILTER ADAPTER
DETECTOR HEAD
Figure 6. Sampling Tube Filter Installation.
7
SAMPLING TUBE
SAMPLING TUBE
FILTERS
A78-2451-01
I56-475-09R
MOUNTING
SCREWS
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