Firex 2650-661, 2650-660 User Manual

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FIREX®the recognized leader in residential fire protection,
brings you the latest in duct smoke detection technology.
FIREX

®

Duct Smoke Detectors provide early detection of
smoke and products of combustion present in air moving
through an HVAC duct. These devices are designed for
prevention of smoke recirculation in areas by the air
handling systems. Fans, blowers, and complete systems
may be shut down in the event of smoke detection. Our
universal voltage models will operate on any one of
four input voltages.

Air sampling is accomplished by two tubes, which
protrude into the duct. An exhaust tube of one standard
length (7'') is provided with each FIREX

®

Duct Smoke
Detector. Intake sampling tubes, which must be ordered
separately, are available in three standard lengths.

Duct smoke detector mounting is accomplished by the use
of a mounting template and four sheet metal screws,
which are provided.

Front Mounted
Test / Reset Button

Provides quick and accurate
testing of system.

Duct Smoke Detectors

Universal Voltage Models
230 VAC, 115 VAC, 24 VAC or 24 VDC operation

2650-660 Ionization • 2650-661 Photoelectric

High Temperature Design

Rated to 155˚F (ionization model)
for rooftop and other installations
where high temperatures can
cause problems.

Interconnect
Up to 30 Models

Up to 30 models can be
interconnected to provide
complete HVAC system
protection–controlling all
connected blowers, fans
and dampers.

Alerts When Dirty

Automatically indicates when
maintenance is required.

• Four sheet metal screws provide easier mounting

• UL 268A Listed

• Factory set tube alignment

• Mechanical installation without cover removal

• Built-in power supply

• Installation template included

• Large terminal connection screws

• Power supervisory relay included

• Two independent form “C” alarm contacts standard

• Compatible with building automation & fire alarm systems

• Dust filtering included in detector head

• No additional screens or filters to clean

• Common or individual remote reset

• Common or individual fan shutdown relay operation

• Common or individual remote alarm indication,

i.e. red LED, horn, strobe

• Common or individual head removed remote indication

• One horn/strobe operated by up to 15 detectors

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Additional Features

Installation Flexibility

Fast and easy mounting to
rectangular ducts.

Wiring

Item:

2650-660 - 115 Volt AC, 230 Volt AC, 24 Volt AC,

or 24 Volt DC ionization

2650-661 - 115 Volt AC, 230 Volt AC, 24 Volt AC

or 24 Volt DC photoelectric
532 - Sampling tube for 6'' to 2.5' duct widths
533 - Sampling tube for 2.5' to 5.0' duct widths
534 - Sampling tube for 5.0' to 10.0' duct widths

Power Requirements:

115 Volt AC operation @ 5 mA standby, 15 mA alarm
230 Volt AC operation @ 12 mA standby, 16 mA alarm
24 Volt AC operation @ 20 mA standby, 50 mA alarm
24 Volt DC operation @ 20 mA standby, 50 mA alarm

Relay Contact Rating:

Alarm contacts, two form “C” rated at 10 Amps @ 230 VAC resistive
Trouble contact, one form “C” rated 10 Amps @ 230 VAC resistive

Radioactive Element:

For model 2650-660 only, Americium 241; 0.9 Micro-Curies

Sensitivity:

Factory set

Air Velocity:

500 to 3000 feet/minute

Approval:

Underwriters Laboratories Listed (UL 268A)

Ambient Temperature:

-5ºF to 155ºF (-23º to 68ºC) Model 2650-660

-5ºF to 120ºF (-23º to 48ºC) Model 2650-661

Humidity:

10% to 85% R.H.

Material:

18 ga. steel backbox, clear plastic ABS-94VO cover

Finish:

Textured gray finish

Maximum net weight:

4.0 pounds

Mounting:

Template and necessary hardware supplied

Dimensions:

9'' H x 7'' W x 2.25'' D (22.9 cm H x 17.8 cm W x 5.7 cm D)

Air duct smoke detectors shall be Firex®‚ item
number 2650-660 ionization type (2650-661 for
photoelectric). The detectors shall be listed by
Underwriters Laboratories to verify operational
characteristics in accordance with U.L. 268A
standard and local code requirements. The
detectors shall operate at an ambient
temperature up to 155°F (2650-661
photoelectric, 120°F) and air velocities from 500
feet per minute to 3,000 feet per minute. A
custom fitted NEMA 3R rated Firex‚ Weatherproof
Enclosure item number 590 shall be used for
indoor or outdoor locations that require protection
from environmental elements.

The detector housing shall be of 18 gauge steel
construction with a special ABS-94VO high
strength plastic cover for maximum durability.
Complete mechanical installation of the unit
must be performed without removal of detector
cover to prevent dirt and debris from entering
unit. The plastic cover shall be clear to allow full
visibility of the internal components for future
visual inspections.

Detector heads contained within the unit shall
not require separate filters or screens which must
be maintained or replaced to insure that unit is
fully operational. The housing shall accept either

ionization or photoelectric type detector heads
as required.

Terminal connections shall be of screw type and
be a minimum of #6 screw for easy wiring during
installation. Terminals shall be provided for
remote pilot and alarm indication.

Visual indicators shall be mounted at an angle on
the front housing for pilot and alarm status to
allow easy viewing from lower elevations during
routine inspections. A manual test/reset switch
shall also be provided on the front of the detector
for unit testing during standby conditions or rou­tine inspections.

Product Specifications

Engineers & Architects Specifications

FIREX® Duct Smoke Detector

Powe r
Connections
(See Below)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

12.0A 12.0A 10.0A

Remote

Accessories

Alarm

Contacts

*Trouble
Contacts

115 VAC Operation

115 VAC

@ 50/60 Hz

Input

0.1 A. Max.

1 2 3

GNH

4 5 67

230 VAC Operation

230 VAC

@ 50/60 Hz

Input

0.1 A. Max.

1 2 3

GN H

4 5 67

24 VAC Operation

24 VAC

@ 50/60 Hz

Input

0.2 A. Max.

1 2 3 4 5 67

24 VDC Operation

24 VDC

Input

0.1 A. Max.

1 2 3 4 5 67

+

* Trouble contacts are

shown in non-energized
condition. Normal operation
contacts will be reversed.

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Controls Americas

515 South Promenade Avenue
Corona California 92879-1736 USA
Cust. Svc. Telephone [phone]
Cust. Svc. Facsimile [phone]
[e-mail]

3505 Laird Road Unit #14
Mississauga Ontario L5L 5Y7 Canada
Cust. Svc. Telephone [phone]
Cust. Svc. Facsimile [phone]
[e-mail]

Technical Service

Telephone [phone]
Facsimile [phone]
[e-mail]

See sell sheet 150-1661 and 150-1991 for listing of accessories © 2006 Invensys Controls Americas 6/06 - #150-1610D