Published in U.S.A.
www.johnsoncontrols.com
A421 Series Standard Electronic Temperature Controls Installation Instructions
17
Johnson Controls® and PENN® are registered trademarks of Johnson Controls, Inc. in the
United States of America and/or other countries. All other trademarks used herein are the property
of their respective owners. © Copyright 2015 by Johnson Controls, Inc. All rights reserved.
Building Efficiency
507 E. Michigan Street, Milwaukee, WI 53202
Table 12: A99B Series Positive Temperature Coefficient Sensors
Sensing Range
1
Type A99BA and A99BB: -40 to 212°F (-40 to 100°C)
Type A99BC: -40 to 248°F (-40 to 120°C)
Reference Resistance
1,035 ohms at 77°F (25°C) and 855 ohms at 32°F (0°C)
Accuracy
0.9°F (0.5°C) between 5°F and 167°F (-15°C and 57°C). Refer to the
A99B Series
Temperature Sensors Product/Technical Bulletin (LIT-125186)
for accuracy rating
outside of this temperature range.
Sensor Construction
Probe: Stainless Steel
Sensor Cable Sheath
Type A99BA: Shielded PVC Cable
Type A99BB: PVC Cable
Type A99BC: High Temperature Silicon Cable
Wire Gauge
22 AWG
Ambient Operating Conditions
Type A99BA and A99BB: -40 to 212°F (-40 to 100°C); 0 to 100% RH, Condensing
Type A99BC: -40 to 248°F (-40 to 120°C); 0 to 100% RH, Condensing
Ambient Storage Conditions
Type A99BA and A99BB: -40 to 221°F (-40 to 105°C); 0 to 100% RH, Condensing
Type A99BC: -40 to 266°F (-40 to 130°C); 0 to 100% RH, Condensing
Shipping Weight
1.4 oz (41 g) for 6 1/2 ft (2 m) sensor
Accessories
1.
When any A99 Series Temperature Sensor is connected to a standard A421 control model, the range of displayed
temperature values is -40 to 212ºF or -40 to 100ºC.
The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these
specifications Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.
United States Emissions Compliance
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Canadian Emissions Compliance
This Class (B) digital apparatus meets all the requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la Classe (B) respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
