Honeywell T4398A1021 User Guide
Honeywell T4398A1021 - Electric Heat Thermostat Manual
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- Honeywell T4398A1021 | User Guide - Page 1
Micro Switch™ mechanism. • Color-coded leads for easy installation. • Cover thermometer indicates room temperature. • Rugged, plastic mounting base. • Contemporary white finish complements almost any decor. The T4398A,B High Performance Electric Heat Thermostats provide precise line voltage control - Honeywell T4398A1021 | User Guide - Page 2
ELECTRIC HEAT THERMOSTATS SPECIFICATIONS 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 - Honeywell T4398A1021 | User Guide - Page 3
must be a trained, experienced service technician. 4. After installation is complete, check out product operation as provided in these instructions. WARNING HIGH VOLTAGE CONTROL. ELECTRICAL SHOCK HAZARD. Follow local codes and ordinances when installing this thermostat. Improper handling can cause - Honeywell T4398A1021 | User Guide - Page 4
T4398A,B HIGH PERFORMANCE ELECTRIC HEAT THERMOSTATS T4398A L1 4 T1 1 L1 (HOT) L2 SOLDERLESS CONNECTORS 2 ELECTRIC HEATER 3 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 - Honeywell T4398A1021 | User Guide - Page 5
IMPORTANT Make sure that all wiring connections are secure before beginning checkout. After thermostat installation is complete, check the operation as follows: ᕡ Move the thermostat setting knob clockwise until the switch makes (click sound); the electric heater starts. ᕢ Move the setting knob - Honeywell T4398A1021 | User Guide - Page 6
heater. The vapor-filled dual diaphragm sensing element is more sensitive to temperature changes than a bimetal sensor. This accuracy, usually associated with low voltage thermostats, is now available for line voltage control. Electric heat thermostats are often affected by the heat generated - Honeywell T4398A1021 | User Guide - Page 7
T4398A,B HIGH PERFORMANCE ELECTRIC HEAT THERMOSTATS 7 68-0147-2 - Honeywell T4398A1021 | User Guide - Page 8
T4398A,B HIGH PERFORMANCE ELECTRIC HEAT THERMOSTATS Home and Building Control Honeywell Inc. 1985 Douglas Drive North Golden Valley, MN 55422 Home and Building Control Honeywell Limited-Honeywell Limitée 155 Gordon Baker Road North York, Ontario M2H 2C9 68-0147-2 C.H. Rev. 4-96 Printed in U.S.A.
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PRODUCT DATA
Copyright © 1996 Honeywell Inc.
•
•
All Rights Reserved
FEATURES
•
Controls both fan-forced and baseboard electric
heaters.
•
Temperature-responsive, vapor-filled dual diaphragm
sensing element provides
2
°
F (1
°
C) sensitivity with
minimum droop.
•
UL listed up to 5 kW at 277 Vac.
•
Replaces virtually all standard wall-mounted line
voltage thermostats.
•
Includes long-lasting Micro Switch™ mechanism.
•
Color-coded leads for easy installation.
•
Cover thermometer indicates room temperature.
•
Rugged, plastic mounting base.
•
Contemporary white finish complements almost any
decor.
T4398A,B High
Performance Electric Heat Thermostats
Contents
General
.............................................................................
1
Features
............................................................................
1
Specifications
....................................................................
2
Ordering Information
.........................................................
2
Installation
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3
Settings and Adjustment
...................................................
4
Checkout
...........................................................................
5
Operation
..........................................................................
6
GENERAL
The T4398A,B High Performance Electric Heat Thermostats
provide precise line voltage control of resistance-rated electric
heating equipment. Snap action switch makes heating circuit
on temperature fall; T4398B models make double line break
with setting knob at OFF position.
68-0147-2