Siemens AD-3I, AD-3ILP Installation/wiring Instructions

INSTALLATION/WIRING INSTRUCTIONS

Models AD-3I and AD-3ILP
AIR DUCT DETECTORS

INTRODUCTION

Model AD-3I and AD-3ILP Detectors from Siemens Industry , Inc. are System 3,
System PXL, System SXL-EX, System SXL, System XL3, System
CP-2ER, MXL Control Panel and MXL-IQ Control Panel compatible air
duct detectors. They are designed for use in heating, ventilating, and air
conditioning duct systems. Model AD-3I uses ionization smoke detectors,
and Model AD-3ILP uses photoelectric smoke detectors to detect the pres­ence of combustion products in a duct system. (Refer to TECHNICAL
DA TA below for information on compatible detectors.)

When smoke or combustion products are detected, shutdown of the duct
system and/or operation of supplementary equipment is provided by the
related system control panel.

TECHNICAL DA T A
Smoke Detector Compatibility

T ABLE 1

AD-3I COMP A TIBILITY

System/Module Compatible Detectors

CP-2ER DI-B3, DI-B3H
MXL/MXL-IQ Control Panel ILI-1B, ILI-1BH
MXL/MXL-IQ Control Panel DI-B3, DI-B3H

(CZM-1/1B6 or CZM-4)
System 3 DI-B3, DI-B3H
System PXL DI-B3, DI-B3H
System PXL (PZE-4B) DI-B3, DI-B3H
System SXL DI-B3, DI-B3H (no accessories)
System SXL (SZE-4R) DI-B3, DI-B3H (no accessories)
System SXL (SZE-8A) DI-B3, DI-B3H (no accessories)
System SXL-EX DI-B3, DI-B3H
System SXL-EX (SZE-4X) DI-B3, DI-B3H
System SXL-EX (SZE-8AX) DI-B3, DI-B3H
System XL3 (INX-3) ILI-1B, ILI-1BH
System XL3 (ZNX-3) DI-B3, DI-B3H

CZM-1/1B6

(no

accessories

)

with

Siemens Industry, Inc.
Building Technologies Division
Florham Park, NJ

P/N 315-093234-7

Siemens Building Technologies, Ltd.
Fire Safety & Security Products
2 Kenview Boulevard
Brampton, Ontario
L6T 5E4 Canada

T ABLE 2

AD-3ILP COMP A TIBILITY

System/Module Compatible Detectors

MXL/MXL-IQ Control Panel ILP-1, ILP-2*
System XL3 (INX-3) ILP-1

*The ILP-2 is only compatible with MXL/MXLV Rev. 8.0 or greater firmware and MXL-IQ

Rev. 3.0 or greater firmware. When the CSG-M is configured, the DUCT application must
be selected.

DO NOT USE air duct detectors with Alarm Verification.

T ABLE 3

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T ABLE 4

AIR DUCT CONDITIONS

T emperature Range: 32OF (0OC) - 100OF (38OC) per UL 268/268A
Altitude Range:

Model Detectors Range

AD-3I DI-B3, ILI-1B 0-4000 feet

DI-B3H, ILI-1BH 3000-8000 feet

AD-3ILP No altitude limitations

Relative Humidity Range:

0-93% (non-condensing) per UL 268-268A

Air Duct Velocity Range: 500-4000 ft/min – AD-3I

300-4000 ft/min – AD-3ILP

Sampling T ube Pressure Range of Differences:

.017-1.07 inches of water column for AD-3I
.006-1.07 inches of water column for AD-3ILP

2

CAUTION: These air duct detectors are designed for detection and con-

trol of products of combustion in a duct system. They are not

to be used for open area protection.

OPERATION

When the AD-3I/3ILP (AD-3I or AD-3ILP) is operating, a sample of air is
drawn from the duct and passed through the sampling chamber at low ve­locity by means of the inlet sampling tube. The air sample passes through
the smoke detector mounted in the duct housing and is exhausted back
into the duct through the outlet sampling tube.

Alarm Indication

The System 3, System SXL-EX, System SXL, System XL3, MXL/MXL-IQ
Control Panel, and System PXL all have LEDs for alarm indication that are
used with the AD-3I/3ILP.

Alarm Condition

When used with the CP-2ER, MXL/MXL-IQ Control Panel, System PXL,
System SXL-EX, System SXL, System 3, or System XL3, the Model AD-3I/
3ILP operates directly from the control panel. An alarm condition on any of
these systems is indicated by visual and audible system devices. On XL3
Systems the alarm is also indicated on the DAX module and any optional
printers used. On MXL Systems the alarm is indicated on the Control Panel
display and on the optional printer. See system manuals for further infor­mation.

After a fire is extinguished, and all products of combustion are cleared from
the duct system, each system can be reset at its respective control panel,
or remote annunciator, if available.

Trouble Condition

A trouble condition from an AD-3I/3ILP is indicated by visual and audible
devices on the control panel in the CP-2ER, System 3, System SXL-EX,
System SXL, System XL3, MXL/MXL-IQ Control Panel, or System PXL,
depending on the type of system in which it occurs. On System XL3 and
MXL/MXL-IQ Control Panels it also may be indicated by an optional printer.
Call your Authorized Siemens Industry , Inc. Service Represent ative when a
trouble occurs.

For further information, refer to the appropriate Operating Instructions:

CP-2ER OPERATING INSTRUCTIONS, P/N 315-193524
MXL Control Panel OPERATING INSTRUCTIONS, P/N 315-092117
MXL-IQ Control Panel OPERATING INSTRUCTIONS, P/N 315-093626
System PXL OPERATING INSTRUCTIONS, P/N 315-094211
System SXL-EX OPERATING INSTRUCTIONS, P/N 315-094999
System SXL OPERATING INSTRUCTIONS, P/N 315-092419
System 3 OPERATING INSTRUCTIONS, P/N 315-084881
System XL3 OPERATING INSTRUCTIONS, P/N 315-082989

3

MOUNTING THE AIR DUCT HOUSING
Location on Duct System

Locate the air duct detector in the main supply duct, downstream from the
filters and positioned so as to operate reliably in case of smoke in any part
of the air stream. In instances where filters are capable of removing
smoke, install detectors both upstream and downstream from the filters.

The air duct detectors use sampling tubes which monitor the full width of an
air duct to overcome the limitations of spot-type smoke and heat detectors
in the duct. However, since stratification can occur in the air stream af ter a
long duct run, locate the detector after bends or inlets which create turbu­lence, and hence, a more homogeneous mixture of air. The detector should,
when possible, be located a minimum of six duct-widths downstream from
source of the turbulence (See Figure 1). A 12 inch by 12 inch access hole
should be cut in the duct adjacent to the detector to permit checking and
cleaning of the sampling tubes, if necessary .

OUTLET
SAMPLING TUBE
INLET
SAMPLING TUBE

AT LEAST SIX

DUCT WIDTHS

the

Figure 1

Typical Mounting of Duct

Locate the air duct detector in the air handling system, as shown in Figure
2 and in conformance with NFP A Pamphlet No. 90A, Air Conditioning
and Ventilating System and with NFPA 72 National Fire Alarm Code.
(Both publications are available from the National Fire Protection Associa­tion, Batterymarch Park, Quincy , Massachusett s.) The detector on the
return air side of the blower should be located at a point prior to exhaust­ing air from the building or diluting return air with outside air . The detector
on the supply air side of the blower should be downstream of the blower.

Wire or program the detectors into the system so that they automatically shut
down the blowers and operate dampers as required in the event of an alarm.

4

Figure 2

Recommended Locations in Duct Systems

Mounting of the Air Duct Housing (See Figure 3)

a. Affix the adhesive backed gaskets (Item 1) to the back of the detector

housing (2) so that the larger hole on the gasket lines up with the sam­pling tube hole on the sampling chamber and the smaller hole lines up

with the housing mounting hole.
b. Affix the adhesive backed template (5) to the side of the ductwork.
c. Drill the four 0.110 diameter holes with a No. 35 drill bit and cut or

punch out two 7/8-inch diameter holes as indicated on the template.
d. Attach the appropriate model housing to the air duct using two No. 10

11/2 inch screws (6) and also using two No. 10 1-inch screws (7) with

lockwashers (8).
e. Cut a 12 inch by 12 inch access hole in the duct adjacent to the hous-

ing to permit checking and cleaning of the sampling tubes. The access

hole must be covered and sealed when not in use.

5

DETECTOR

Exploded View

Figure 3

DETECTOR

CAUTION: DISCONNECT POWER

PRIOR TO SERVICING.

AIR DUCT

Item

15 Detector ILP-1 or ILP-2

16 Cover Gasket

17 Ionization Detector Cover

18 Photoelectric Detector

19 Screw, No. 6

20 Sensitivity Test Jack Lid

Cover (P/N 305-093076)

10 Bracket

12 Screw,

13 Plug

14 Detector DI-B3, DI-B3H,

11 Screw,

8 Lockwasher

9 Rubber Stopper

ILI-1B, or ILI-1BH

3

8

/16

/32

4 Outlet Sampling Tube

5 Template

6 Screw, No. 10 – 1

7 Screw, No. 10 – 1

1

/2

3 Inlet Sampling Tube

No. Component

1 Sampling Tube Gasket

2 Housing

6

Sampling Tube Selection

There are four standard lengths of inlet sampling tubes. To ensure accurate
air sampling, select the appropriate length and determine the outside width of
the duct. Select the sampling tube nearest to, but greater than, the duct width
(Table 5). The outlet sampling tube for all ducts is a fixed length of 4 inches
(10.1 cm). Trim the inlet sampling tube at the job site as described below.

T ABLE 5

SAMPLING TUBE SELECTION CHART

Sampling T ube Standard

Outside Duct Width Model No. Tube Length

1 ft 93/4 in or less STA-2 2 ft
1 ft 93/4 in - 3 ft 33/4 in STA-3 3 ft 6 in
3 ft 33/4 in - 6 ft 33/4 in or less STA-6 6 ft 6 in
6 ft 33/4 in - 9 ft 93/4 in or less ST A-10 10 ft
Greater than 9 ft 93/4 in Consult factory

Note: Each model is manufactured with a different number and size of

sampling hole. Only the specific tube must be used for the specified
duct width.

Figure 4

Sampling T ube Orient ation

7

Trimming the Inlet Sampling Tube (See Figure 4)

a. Measure the outside width of the duct.
b. Add 2.25 inches to obtain proper length of tube.

Example: Outside width of duct 2 ft 6 in

Add 2.25 inches + 2.25 in
Length of sampling tube 2 ft 8.25 in
The length (2 ft 8.25 in) determines (Table 5 on page 7)

the model number of the appropriate sampling tube (STA-3).

c. Measure the sampling tube, starting from the end with the four mounting

holes.

d. T rim tube to the correct length, remove all burrs, and insert a rubber

stopper (Figure 3, Item 9) in the tube.

Installation of the Sampling Tubes

a. Before installing the tubes, cut a 7/8-inch hole in the duct wall that is

directly opposite the inlet sampling chamber hole in the detector hous­ing. This will allow the inlet tube to protrude through the duct.

b. Attach brackets (10) to the inlet and outlet air sampling tubes with 3/16

screws (1 1).

NOTE: When attaching brackets, be sure to align tubes properly

(See Figure 4).

c. Install the inlet tube (3) by inserting it through the air sampling chamber

as shown in Figure 3. Face sampling tube holes into the air stream
(Figure 4), and secure to the housing with 8/32 screws (12).

d. Install the outlet tube (4) by inserting it into the upper socket of the air

sampling chamber with the scarfed end facing downstream (See Figure

4). Secure the bracket to the housing with an 8/32 screw.

e. Make sure no sampling holes extend beyond the ductway , that the stop-

per (9) remains firmly in position, and that the duct hole is sealed around
the protruding sampling tube.

Air Duct Sampling Tube Pressure Measurement

The Model PDM-3 Pressure Differential Measuring device should be used
to ensure that the sampling tube pressure differential is within the specified
limits (See TECHNICAL DA T A). Qualified personnel should take measure­ments in accordance with the PDM-3 Instructions, P/N 315-085535.

8

ELECTRICAL WIRING

System 3, System PXL, System SXL-EX, System SXL, MXL/MXL-IQ
Control Panel (CZM-1/1B6 or CZM-4), or CP-2ER – See Figure 6. Use

two wire circuits of 18 A WG, limited energy , shielded cable without conduit,
if permitted by the local building codes.

System XL3 – See Figure 7. Use two wire circuits of 18 A W G, limited energy,
shielded cable without conduit, if permitted by the local building codes.

MXL/MXL-IQ Control Panel – See Figure 8. Use two wire circuits of 18
AWG, limited energy , shielded cable without conduit, if permitted by the lo­cal building codes.

INST ALLATION OF SMOKE DETECTORS

CAUTION: Air Duct Detector Models AD-3I/3ILP are designed only for

those detectors shown in the Smoke Detector Compatibility
section (See Tables 1 and 2). Do not use any other detector
(See Figure 3, items 14 and 15).

Programming

ILI-1B, ILI-1BH, ILP-1, ILP-2 Detectors

Model AD-3I/3ILP ducts, using ILI-1B, ILI-1BH, ILP-1, or ILP-2 detectors,
can be programmed to respond at a specific and unique system address.
Program each detector using the Model FPI-32 Programmer/Tester. See
the FPI-32 Manual, P/N 315-090077. The ILP-2 requires FPI-32 Rev. 1.3
software or greater .

Installation

Align the detector alarm LED with the LED imprint located within the detec­tor compartment on the housing. Rotate the detector counterclockwise
while pushing on the detector until it drops in place. Next, push and rotate
clockwise to engage the electrical connections. The detector automatically
stops and locks in place.

Removal

To remove the detector, push on the detector and rotate it counterclockwise
until the stop is reached. Then pull the detector out of the base to disengage.

9

Model AD-3I

Model AD-3I

or

DI-B3

or

DI-B3

DI-B3H

DI-B3H

BLOCK

TERMINAL

OPTIONAL REMOTE

ALARM INDICATOR

MODEL RL-30, RL-40,

OPTIONAL REMOTE

ALARM INDICATOR

MODEL RL-30, RL-40,

RLI-1, OR RLI-2, IF

RLI-1, OR RLI-2, IF

SUPPORTED BY ZONE

SUPPORTED BY ZONE

TO NEXT DETECTOR

OR EOL DEVICE

SEE NOTE

Figure 6

NOTE:

EOL device must be compatible with system initiating circuit.

Observe proper polarity where applicable.

number of air duct detectors

per circuit.

relay board option cannot be

CAUTION:

1. See Table 3 for maximum

used.

2. If remote lamps are used, the

used with the MXL/MXL-IQ

Control Panel (CZM-1,

CZM-1B6, CZM-4) and SXL.

to control a critical system

3. Remote lamps may not be

function, the relay and its

4. When a remote relay is used

associated detector and

optional module(s) must be

the ONLY devices on the

initiating circuit.

10

ZONE WIRES FROM

SIEMENS INDUSTRY, INC.

COMPATIBLE CONTROL PANEL

(SEE TABLE 1)

System SXL, MXL/MXL-IQ Control Panel (CZM-1, CZM-1B6, CZM-4)

T ypical Connections for System 3, CP-2ER, System PXL, System SXL-EX

OPTIONAL REMOTE

ALARM INDICATOR

MODEL RLI-1 OR RLI-2

TO NEXT

ADDRESSABLE

DEVICE

Model AD-3I or AD-3ILP

Model AD-3I or AD-3ILP

ILP-1,

ILI-1B,

ILP-1,

ILI-1B,

or

ILI-1BH

or

ILI-1BH

BLOCK

TERMINAL

NOT

NOT

USED

USED

RED

OPTIONAL REMOTE

RED

ALARM INDICATOR

MODEL RLI-1 OR RLI-2

BLACK

BLACK

WIRE NUT REQUIRED

Figure 7

T ypical Connections for System XL3 Use

11

ZONE WIRES FROM SIEMENS INDUSTRY,

INC. SYSTEM XL3 CONTROL PANEL

(SEE TABLES 1 AND 2)

OPTIONAL REMOTE

ALARM INDICATOR

MODEL RLI-1 OR RLI-2

TO NEXT

ADDRESSABLE

DEVICE

Model AD-3I or AD-3ILP

Model AD-3I or AD-3ILP

ILP-1,

ILP-2,

ILP-1,

ILP-2,

or

ILI-1B,

ILI-1BH

or

ILI-1B,

ILI-1BH

BLOCK

TERMINAL

NOT

NOT

USED

USED

RED

OPTIONAL REMOTE

RED

ALARM INDICATOR

BLACK

Figure 8

WIRE NUT REQUIRED

MODEL RLI-1 OR RLI-2

BLACK

T ypical Connections for MXL/MXL-IQ Control Panel Use

12

ZONE WIRES FROM SIEMENS INDUSTRY,

INC. MXL/MXL-IQ CONTROL PANEL

(SEE TABLES 1 AND 2)

Sensing Compartment Cover Installation

a. Install the cover gasket (Figure 3, 16) on the housing, if not already

installed. Be certain the alignment holes in the cover gasket are aligned
with the guides on the housing.

b. Install the sensing compartment ionization cover (17) when using DI-B3,

DI-B3H, ILI-1B, or ILI-1BH detectors and the photoelectric cover (18)
when using an ILP-1 or ILP-2 detector.

c. Fasten the cover, using the No. 6 screws (19) provided. T ighten snugly,

but not so tightly as to warp the cover and cause air leakage around the
edges of the cover.

Sensitivity Testing

1. System 3, System MXL/MXL-IQ (CZM-1, CZM-1B6, CZM-4), System
PXL, System SXL-EX, System SXL, CP-2ER, and XL3 (ZNX-3) air
duct smoke detector sensitivities are factory set and not field adjust­able. The sensitivity range, as measured with the appropriate sensitiv­ity meter, is listed on the nameplate label of the detector.

2. The sensitivity of addressable System XL3 smoke detectors can be
measured at the system control panel. Refer to the System XL3 Opera-
tion, Installation, and Maintenance Manual, P/N 315-083206.

3. The sensitivity of addressable MXL/MXL-IQ Control Panel smoke de­tectors can be measured at the system control panel. Refer to the MXL
Operation, Installation, and Maintenance Manual, P/N 315-092036, or
the MXL-IQ Operation, Installation, and Maintenance Manual, P/N 315-
093624, as applicable.

4. To ensure that the sensitivities are within factory-specified limits, sensi­tivity testing of the smoke detectors should be done by qualified service
personnel only .

Maintenance

The performance of the air duct detector unit may be adversely affected by
dirt or foreign matter on the sampling tubes or detector. If the air holes in
the inlet sampling tube become restricted, the unit cannot receive a proper
air sample, and performance is impaired. It is recommended that the sam­pling tubes be checked and cleaned periodically. The detector mainte­nance program should consist of periodic cleaning of dust from the detec­tor head by using a vacuum cleaner. For cleaning Model ILP-1 or ILP-2,
refer to the detector’s Installation Instructions.

The cleaning and test program is recommended for 6 month intervals, or
more frequently , if needed, depending on the individual detector environment.

13

CAUTION: Under no circumstances is the ionization or photoelectric

detector portion of the unit to be disassembled by anyone
other than an authorized Siemens Industry, Inc. Systems
Technician. For service, contact your nearest authorized Si­emens Industry , Inc. Service Representative.

Periodic Testing

The unit should be tested per NFPA 70 recommendations to ensure opti­mum performance. This can be done by removing the sealing plug from
the inlet sampling tube on the opposite side of the duct and blowing smoke
directly into the inlet tube. Check that the fire alarm system is activated.

CAUTION: If the fire alarm system is connected to a central station or

fire department, or has external devices such as fans, extin­guishers, etc., connected, notify appropriate personnel and
disconnect the external devices until all tests are completed.
After testing, reset the system, reconnect the devices, and
notify the personnel that the system is operating again.

14

COMPATIBLE CONTROL EQUIPMENT

Equipment Installation/Wiring

Compatibility Identifier Instructions

CP-2ER P/N 315-093523-6
CP-35 (System 3) P/N 315-084902-20
CZM-1 (MXL/MXL-IQ System) P/N 315-090725-8
CZM-1B6 (MXL/MXL-IQ System) P/N 315-095355-4
CZM-4 (MXL/MXL-IQ System) P/N 315-090726-8
PXL P/N 315-094131-4
PZC-4D (PXL) P/N 315-094164-2
PZE-4B (PXL) P/N 315-094065-4
SXL P/N 315-092419-10
SXL-EX P/N 315-095997-5
SZE-4R (SXL) P/N 315-092430-4
SZE-4X (SXL-EX) P/N 315-096018-4
SZE-8A (SXL) P/N 315-092969-4
SZE-8AX (SXL-EX) P/N 315-096022-4
ZNX-3 (XL3 System) P/N 315-088562B
ZU-35 (System 3) P/N 315-083222-14

The detector model number is the compatibility identifier.

15

Siemens Industry, Inc.
Building Technologies Division
Florham Park, NJ

P/N 315-093234-7

Siemens Building Technologies, Ltd.
Fire Safety & Security Products
2 Kenview Boulevard
Brampton, Ontario
L6T 5E4 Canada