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Manual Honeywell Q674L

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  • Honeywell Q674L - page 1

    X-XX UL INST ALLA TION INSTRUCTIONS ®U.S. Registered Trademark Copyright © 1997 Honeywell Inc. • • All Rights Reserved T874R Thermostats and Q674L Subbases Installation Instructions for the T rained Service T echnician. APPLICA TION The T874R Thermostat and Q674L Subbase provide 24 to 30 Vac control of 2-stage heating and 1-stage cool-ing hea ...

  • Honeywell Q674L - page 2

    69-0392—9 2 T874R THERMOST A TS AND Q674L SUBBASES OPERA TION On a 2-heat thermostat, the two stages of heat make sequentially as the temperature drops. Make refers to the mercury switch initiating a call for heat or cool. There is about 1 ° F (0.6 ° C) between stages so the sec- ond stage makes only when the first stage can not handle the load ...

  • Honeywell Q674L - page 3

    69-0392—9 3 T874R THERMOST A TS AND Q674L SUBBASES M925 VERTICAL OUTLET BOX ADAPTER RING SUBBASE COVER PLATE MOUNTING SCREWS (2) MOUNTING SCREWS (2) 1 SUBBASE MOUNTING SCREWS (2) HORIZONTAL OUTLET BOX 1 2 2 NOT INCLUDED WITH UNIT. ACCESSORY PARTS AVAILABLE (193121A). 1 2 Fig. 1. Installation of subbase on outlet box. WIRES THROUGH WALL OPENING WA ...

  • Honeywell Q674L - page 4

    69-0392—9 4 T874R THERMOST A TS AND Q674L SUBBASES Fig. 5. Internal schematic and typical wiring diagram for Y594R1763 (T874R1954/Q674L1827). Replaces GE AY28X078, AY28X139; Trane Baystat 139, Baystat 239 and Baystat 240; and Honeywell Y594R1136 Thermostats. H1 FALL C1 L1 (HOT) L2 1 G W U B F R T X2 O Y FAN RELAY AUX. HEATER RELAY COMPRESSOR MONI ...

  • Honeywell Q674L - page 5

    69-0392—9 5 T874R THERMOST A TS AND Q674L SUBBASES Fig. 7. Internal schematic and typical wiring diagram for Y594R1300 (T874R1475/Q674L1520); fixed anticipation. H2 FALL H1 FALL C1 L1 (HOT) L2 1 2 2 1 2 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. CONNECT CHANGEOVER RELAY TO B FOR HEAT CHANGEOVER, TO O FOR COOL CHAN ...

  • Honeywell Q674L - page 6

    69-0392—9 6 T874R THERMOST A TS AND Q674L SUBBASES Fig. 9. Internal schematic and typical wiring diagram for Y594R1664 (T874R1871/Q674L1736) and Y594R1706 (T874R1913/Q674L1777). Exact replacement for York model no. 2TH11702224. H2 FALL H1 FALL C1 L1 (HOT) L2 1 FAN SWITCH AUTO ON FAN RELAY AUX. HT. RELAY "H" RELAY EM. HT. RELAY CHANGEOVE ...

  • Honeywell Q674L - page 7

    69-0392—9 7 T874R THERMOST A TS AND Q674L SUBBASES Fig. 11. Internal schematic and typical wiring diagram for Y594R1672 (T874R1889/Q674L1736) and Y594R1698 (T874R1905/Q674L1777). Exact replacement for York model nos. 2TH11702324 and 6TH11702224. H2 FALL H1 FALL C1 L1 (HOT) L2 1 FAN SWITCH AUTO ON FAN RELAY AUX. HT. RELAY "H" RELAY EM. H ...

  • Honeywell Q674L - page 8

    69-0392—9 8 T874R THERMOST A TS AND Q674L SUBBASES Mounting the Thermostat 1. Remove the thermostat cover by pulling the bottom edge of the cover away from the base until it snaps free from the cover clip. NOTE: The cover is hinged at the top and can be removed by pulling out at the bottom. 2. Carefully remove and discard polystyrene packing inse ...

  • Honeywell Q674L - page 9

    69-0392—9 9 T874R THERMOST A TS AND Q674L SUBBASES M5070 CHECKOUT Heating Move the system switch on the Q674 Subbase to HEAT. Move the setpoint lever on the T874 Thermostat about 10 ° F (6 ° C) above room temperature. Both stages of heating and the fan should start. Move the setpoint lever about 10 ° F (6 ° C) below room temperature. Heating ...

  • Honeywell Q674L - page 10

    69-0392—9 10 T874R THERMOST A TS AND Q674L SUBBASES ...

  • Honeywell Q674L - page 11

    69-0392—9 11 T874R THERMOST A TS AND Q674L SUBBASES ...

  • Honeywell Q674L - page 12

    69-0392—9 12 T874R THERMOST A TS AND Q674L SUBBASES 69-0392—9 G.H. Rev . 10-97 www .honeywell.com/yourhome Automation and Control Solutions Honeywell International Inc. Honeywell Limited—Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 ...

Manufacturer Honeywell Category Thermostat

Documents that we receive from a manufacturer of a Honeywell Q674L can be divided into several groups. They are, among others:
- Honeywell technical drawings
- Q674L manuals
- Honeywell product data sheets
- information booklets
- or energy labels Honeywell Q674L
All of them are important, but the most important information from the point of view of use of the device are in the user manual Honeywell Q674L.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Honeywell Q674L, service manual, brief instructions and user manuals Honeywell Q674L. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Honeywell Q674L.

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A complete manual for the device Honeywell Q674L, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Honeywell Q674L by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Honeywell Q674L.

A complete Honeywell manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Honeywell Q674L - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Honeywell Q674L, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Honeywell Q674L, that we can find in the current document
3. Tips how to use the basic functions of the device Honeywell Q674L - which should help us in our first steps of using Honeywell Q674L
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Honeywell Q674L
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Honeywell Q674L in a specific country, if it was not possible to solve the problem on our own.

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