Effective November, 1999
Heat Detectors
Series 600
The Heat Detectors Series 600 are supplied
with the following standard features:
• Rate-of-Rise and Fixed Temperature • Low Profile
• One or Two-Circuit, Normally Open • Visual Indication
• Easy Installation • Operation Testing
Description
The Series 600 Heat Detector is attractive, durable and
features combination rate-of-rise and fixed temperature
operation. Heat detectors are available in 135°F and 200°F
temperature ratings.
Rate-of-rise detects heat by quickly responding to a rapid
temperature increase. Rate-of-rise units have a wide spacing
allowance of 50-foot centers. See specification table for 3-1/4" or 4"
details. Octagonal Box or
4" Square Box
Fixed temperature reacts to heat by responding to a specific
temperature setting.
Series 600 Detectors use the same reliable pneumatic rate-of-
rise element of former models, but offer added aesthetic
appeal.
The pneumatic rate-of-rise element responds to a rapid rise in
temperature, approximately 15°F. (8°C) per minute, by
expansion of air within the sealed chamber faster than it can
escape through a calibrated vent. The resultant increase in
pressure depresses the diaphragm, causing the electrical
contact to close the circuit.
The fixed temperature element uses a fusible alloy. When
activated, the external heat collector drops away to provide
quick visual confirmation that the element has operated.
The units protrude only 1-3/8 inch from the ceiling surface with
a junction box mounting. They have pleasing contours and an
Mounting plate is molded of white self-extinguishing thermo-
all-white finish that conforms to ceiling aesthetics.
plastic rated at 221°F (105°C). The plate is extremely strong
yet adapts to uneven mounting surfaces.
Installation
Each detector includes a patented reversible mounting plate. Series 600 Testing Methods
In one position, it easily attaches to 4" square junction box,
Models 601/621 and 602/622 can be tested by the quick
3.25" or 4" octagonal box, or plaster ring.
application of heat from any convenient source. A portable hair
In reverse, the plate can be used for open wiring without a dryer is recommended. However, do not apply heat that
junction box. A 1/4" space between detector and mounting exceeds the fixed temperature rating of the detector.
surface allows for wire connections. All mounting screws are
Models 603/623 and 604/624 cannot be tested. However, the
concealed.
fusible alloy element used is considered so reliable that testing
The detector attaches easily to the mounting plate with a push is not necessary.
and twist motion. No tools are required.
All rights reserved (10/99).
Effective: November,1999
Model 601 and 621 Model 602 and 622 Model 603 and 623 Model 604 and 624
No Marking Gray Ring Gray Spot Gray Ring and Dot
Model 601 (1 circuit) Model 602 (1 circuit) Model 603 (1 circuit) Model 604 (1 circuit)
Model 621 (dua circuit) Model 622 (dual circuit) Model 623 (dual circuit) Model 624 (dual circuit)
Rate-of-Rise and Fixed Rate-of-Rise and Fixed Fixed Temperature only, Fixed Temperature only,
Temperature, 135°F (57°C) Temperature, 200°F (94°C) 135°F (57°C) 200°F (94°C)
Applications: Normal Applications: Normal tempe- Applications: Unusually violent Applications: Unusually violent
temperature fluctuations rature fluctuations and ceiling temperature fluctuations temperature fluctuations and
and ceiling temperatures temperatures exceeding 100°F and ceiling temperatures ceiling temperatures exceeding
not exceeding 100°F (38°C) (38°C) but not 150°F (66°C) not exceeding 100°F (38°C) 100°F (38°C) but not 150°F (66°C)
Maximum Spacing Maximum Spacing Maximum Spacing Maximum Spacing
Allowance* - Allowance* - Allowance* - Allowance* -
50 x 50 ft. - UL 50 x 50 ft. - UL 25 x 25 ft. - UL 15 x 15 ft. - UL
30 x 30 ft. - FM 30 x 30 ft. - FM 20 x20 ft. - FM
*Refer to National Fire Alarm Code Standard NFPA 72 for application requirements
Important Special Notes
Screw Terminals
Application: Heat detectors should be used for property
protection. Reliance should not be placed on heat detectors for
Life Safety.
CAUTION: When life safety is involved, smoke detectors
MUST also be used. Detectors must not be painted.
Battery Back-Up: Heat detectors should be electronically
supervised with battery back-up at the panel.
The rate-of-rise mechanism may be subject to reduced
sensitivity over time. Annual testing of the rate-of-rise mecha-
nism is recommended.
Electrical Ratings
6-125 Volts A.C., 3.0 Amps.
6-28 Volts D.C., 1.0 Amps.
125 Volts D.C., 0.3 Amps.
250 Volts D.C., 0.1 Amps.
Listings/Approvals
• Listed by Underwriters Laboratories (UL)
• Factory Mutual Approved (FM)
• California State Fire Marshal Approval (CSFM)
• City of New York (MEA) Listing No. 188-94-E
• Listed by Underwriters’ Laboratories of Canada (ULC)
This literature is provided for informational purposes only. CHEMETRONICS assumes no responsibility for the product’s suitability for a
particular application. The product must be properly applied to work correctly. If you need more information on this product, or if you have a
particular problem or question, contact CHEMETRONICS, Ashland, MA; Telephone (800) 496-8383.
Chemetronics
400 Main Street
Ashland, MA 01721 USA
Phone: (800) 496-8383
Fax: (800) 496-7272
Website: www.chemetronics.com
All rights reserved (10/99).
