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Honeywell T834C Quick Start Manual
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Honeywell T834C Quick Start Manual

Heating/cooling thermostats
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APPLICATION

T834C and T8034C Thermostats provide low voltage control
of single-stage heating, cooling or heating-cooling systems.
® U.S. Registered Trademark
Copyright © 2003 Honeywell International Inc.
All Rights Reserved
Heating/Cooling Thermostats

FEATURES

• Integral switches control Heat-Off-Cool System
switching and Auto-On or On-Auto Fan switching.
• Standard heating-cooling, single-stage heat pump, and
electric heat models available.
• Coiled bimetal operates silent, dust-free spdt mercury
switch.
• T834C models have vented cover to provide better air
flow for temperature sensing.
• Adjustable heat anticipator and fixed cool anticipator
on all models.
• T834C models mount directly on wall or on a vertical
outlet box.
• T8034C models mount directly on wall or on a
horizontal outlet box.
• SUPER TRADELINE® T8034C includes horizontal
wallplate for covering marks from old thermostat.
• Accessory mounting plate assembly allows mounting
T834C on horizontal outlet box or T8034C on vertical
outlet box.
Application.........................................................................1
Features ............................................................................1
Specifications ....................................................................2
Ordering Information .........................................................2
Installation .........................................................................3
Settings and Adjustments..................................................7
Checkout ...........................................................................8
T834C, T8034C
PRODUCT DATA
Contents
68-0075-2

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Summary of Contents for Honeywell T834C

  • Page 1: Table Of Contents

    • Adjustable heat anticipator and fixed cool anticipator on all models. • T834C models mount directly on wall or on a vertical outlet box. • T8034C models mount directly on wall or on a horizontal outlet box.

  • Page 2: Specifications

    If you have additional questions, need further information, or would like to comment on our products or services, please write or phone: 1. Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory). 2. Honeywell Customer Care...

  • Page 3: Installation

    Mounting and Wiring 4-3/4 (121) M20945 Disconnect power supply before beginning installation. Fig. 1. T834C Thermostat approximate IMPORTANT dimensions in in. (mm). (T8034C Thermostat has All wiring must comply with local codes and ordi- same dimensions except mounting is horizontally.) nances.
  • Page 4 T834C, T8034C HEATING/COOLING THERMOSTATS T834C The T834C can be mounted directly on a wall or vertical outlet box: — Use the 193121A Mounting Plate Assembly (ordered separately) to mount thermostat on horizontal outlet box or to cover marks from an old thermostat.
  • Page 5 T834C, T8034C HEATING/COOLING THERMOSTATS To wire and mount thermostat. 5. Set the adjustable heat anticipator indicator to match 1. In replacement applications, check existing thermostat the current draw of the primary heating control (see wires for cracked or frayed insulation. Replace any Heat Anticipator Setting).
  • Page 6 T834C, T8034C HEATING/COOLING THERMOSTATS (HOT) SWITCH FAN RELAY AUTO TEMP. FALL ANTICIPATOR ANTICIPATOR HEAT RELAY SYSTEM SWITCH COOL HEAT COMPRESSOR CONTACTOR HEAT COOL M1038B POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. Fig. 7. Internal schematic and typical hookup diagram for electric heat systems.

  • Page 7: Settings And Adjustments

    Fan and System Switching tor. do not use this device on Powerpile (millivolt) systems. The T834C and T8034C feature System and Fan switches for 1. A current rating is usually stamped in the nameplate of control of the heating-cooling and fan systems.

  • Page 8: Checkout

    T834C, T8034C HEATING/COOLING THERMOSTATS CHECKOUT 1. With System switch set to Off and Fan switch set to On, the fan runs continuously. CAUTION 2. Move Fan switch to Auto. In gas-fired or oil-fired sys- tems, fan operation is controlled by thermostat in cool- Checkout Method Hazard.

This manual is also suitable for:

T8034c