Thermostat - Electric Thermostat User Manual

ManualsBrandsHoneywell ManualsHome Theater SystemT498A

PRODUCT DATA

X-XX UL

T498A,B

Electric Heat Thermostats

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.

Contents

General ............................................................................... 1

Features ..............................................................................1

Specifications ...................................................................... 2

Ordering Information ...........................................................2

Installation ........................................................................... 3

Setting and Checkout ..........................................................4

Security Features ................................................................4

Calibration ........................................................................... 5

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.

95C-10686-3

Summary of content (8 pages)

PAGE 1
T498A,B Electric Heat Thermostats PRODUCT DATA 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.
PAGE 2
T498A,B ELECTRIC HEAT THERMOSTATS SPECIFICATIONS CSA Performance Certification: 16A at 208/240 Vac. IMPORTANT The Specifications given in this publication do not include normal manufacturing tolerances. Therefore, this unit may not exactly match the listed specifications. Also, this product is tested and calibrated under closely controlled conditions, and some minor differences in performance can be expected if those conditions are changed.
PAGE 3
T498A,B ELECTRIC HEAT THERMOSTATS Leave the cover on the thermostat while making connections. Push the leadwires into the outlet box and insert the thermostat into the box for mounting by pushing against the cover. Remove the thermostat cover by grasping the top and bottom edges and pulling outward. Turn the dial so that the setpoint indicator is at the 12 o’clock position. This will prevent accidental damage to the dial stop during mounting.
PAGE 4
T498A,B ELECTRIC HEAT THERMOSTATS L2 2 T498B 1 L1 (HOT) 3 6 L1 L2 RED WIRE 5 T1 T2 60 50 70 40 4 ELECTRIC HEATER OFF 80 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 USE SPECIAL SERVICE CO/ALR SOLDERLESS CONNECTORS WHEN CONNECTING ALUMINUM CONDUCTORS OR A FIRE HAZARD MAY RESULT. 3 °F BREAKS AND REMAKES BELOW -31°F(-35°C); NORMALLY THERMALLY ACTIVATED. BREAKS ON A TEMPERATURE RISE; MAKES ON A TEMPERATURE FALL.
PAGE 5
T498A,B ELECTRIC HEAT THERMOSTATS CALIBRATION The T498 Thermostats are calibrated at the factory using precise instruments under closely controlled conditions. Recalibration should not be necessary. Allow the thermostat to operate for several hours before checking calibration. Temperature deviations of 2°F (1°C) are normal. If the thermostat is mounted in a suitable location and still appears out of calibration, check calibration using the procedures that follow.
PAGE 6
T498A,B ELECTRIC HEAT THERMOSTATS 95C-10686—3 6
PAGE 7
T498A,B ELECTRIC HEAT THERMOSTATS 7 95C-10686—3
PAGE 8
T498A,B ELECTRIC HEAT THERMOSTATS Automation and Control Solutions Honeywell International Inc. 1985 Douglas Drive North Golden Valley, Minnesota 55422 95C-10686—3 C.H. Rev. 4-96 Honeywell Limited-Honeywell Limitée 35 Dynamic Drive Scarborough, Ontario M1V 4Z9 8 www.honeywell.