Table of Contents
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GENERAL
The T498A,B Electric Heat Thermostats provide line voltage
control of electric heating equipment. A snap action switch
makes heating circuit on temperature fall.
Copyright © 1996 Honeywell Inc. •
Electric Heat Thermostats
• All Rights Reserved
FEATURES
• CSA Performance Certifled at 16A.
• CSA Certified, Underwriters Laboratories Inc. Listed
up to 5 kW at 277 Vac.
• Long life, industrial-grade Micro Switch™ mechanism.
• Rugged, engineering plastic mounting base with
captive mounting screws.
• Replaces any standard wall-mounted electric heat
thermostat.
• Classic beige styling.
• Range: 40°F to 80°F (5°C to 25°C).
• Locking cover and range stops are optional.
• Energy efficient and economical.
General ............................................................................... 1
Features .............................................................................. 1
Specifications ...................................................................... 2
Ordering Information ........................................................... 2
Installation ........................................................................... 3
Setting and Checkout .......................................................... 4
Security Features ................................................................ 4
Calibration ........................................................................... 5
X-XX UL
T498A,B
PRODUCT DATA
Contents
95C-10686-3
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Summary of Contents for Honeywell T498A
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Page 1: Table Of Contents
GENERAL The T498A,B Electric Heat Thermostats provide line voltage control of electric heating equipment. A snap action switch makes heating circuit on temperature fall. Copyright © 1996 Honeywell Inc. • • All Rights Reserved Electric Heat Thermostats FEATURES • CSA Performance Certifled at 16A. -
Page 2: Specifications
Honeywell, 1885 Douglas Drive North Minneapolis, Minnesota 55422-4386 In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9. International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A. -
Page 3: Installation
HAZARD MAY RESULT. BREAKS AND REMAKES BELOW -31°F(-35°C); NORMALLY THERMALLY ACTIVATED. BREAKS ON A TEMPERATURE RISE; MAKES ON A TEMPERATURE FALL. USE A SEPARATE LIMIT CONTROL IN THE HEATING APPLIANCE. Fig. 2. Typical hookup for T498A Thermostat. T498A ELECTRIC HEATER M6091A... -
Page 4: Setting And Checkout
T498A,B ELECTRIC HEAT THERMOSTATS T498B (HOT) POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. USE SPECIAL SERVICE CO/ALR SOLDERLESS CONNECTORS WHEN CONNECTING ALUMINUM CONDUCTORS OR A FIRE HAZARD MAY RESULT. BREAKS AND REMAKES BELOW -31°F(-35°C); NORMALLY THERMALLY ACTIVATED. BREAKS ON A TEMPERATURE RISE;... -
Page 5: Calibration
See Fig. 6. Using finger pressure, secure the realigned decal on the center of the knob. Wait five minutes and recheck the calibration. T498A,B ELECTRIC HEAT THERMOSTATS ° F APPLY NEW INSERT DECAL Fig. 6. Thermostat recalibration. M7237... - Page 6 T498A,B ELECTRIC HEAT THERMOSTATS 95C-10686—3...
- Page 7 T498A,B ELECTRIC HEAT THERMOSTATS 95C-10686—3...
- Page 8 T498A,B ELECTRIC HEAT THERMOSTATS Automation and Control Solutions Honeywell International Inc. Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, Minnesota 55422 Scarborough, Ontario M1V 4Z9 95C-10686—3 C.H. Rev. 4-96 95C-10686—3 www.honeywell.com/yourhome...