• Home
• Brands
• Honeywell Manuals
• Honeywell TROL-A-TEMP Q674B
• Honeywell TROL-A-TEMP Q674B Installation Instructions Manual

Honeywell TROL-A-TEMP Q674B Installation Instructions Manual

Download Installation instructions manual of Honeywell TROL-A-TEMP Q674B Thermostat for Free or View it Online on All-Guides.com. This version of Honeywell TROL-A-TEMP Q674B Manual compatible with such list of devices, as: TROL-A-TEMP Q674B, TROL-A-TEMP Q674D, TROL-A-TEMP Q674E, TROL-A-TEMP T874A, TROL-A-TEMP T874D

1

2

3

4

5

6

7

8

9

10

S. M. • Rev. 6-93 • • ©Honeywell Inc. 1993 • Form Number 69-0580—2

M3375

T874A,D Zone Thermostats/

Q674B,D,E Subbases

TABLE 2—THERMOSTAT/SUBBASE SPECIFICATIONS.

Thermostat/ Anticipator Range (A)

Thermostat/Subbase Switching Subbase Heating Cooling

Order Number

a

System Fan Color (Adj.) (Fixed)

T874A1465/Q674B1471 HEAT-OFF-COOL ON-AUTO White/Gray Stg. 1— Stg. 1—

T874A1465/Q674D1123 None None White/Gray 0.1 to 1.2 0 to 1.5

T874A1465/Q674E1379 HEAT-OFF-COOL-AUTO ON-AUTO White/Gray

T874D1801/Q674B1463 HEAT-OFF-COOL ON-AUTO Beige/Brown Stg. 1— Stg. 1—

T874D1827/Q674B1471 HEAT-OFF-COOL ON-AUTO White/Gray 0.1 to 1.2; 0 to 1.2;

T874D1801/Q674D1115 None None Beige/Brown Stg. 2— Stg. 2—

T874D1827/Q674D1123 None None White/Gray 0.1 to 1.0. 0 to 1.0.

T874D1827/Q674E1379 HEAT-OFF-COOL-AUTO ON-AUTO White/Gray

a

Subbase not included with thermostat; order separately.

Operation

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 are about 2° F [1° C] between stages so that the

second stage makes only when the first stage cannot

handle the load. This is the interstage differential.

Recycling Notice

This control contains mercury in a sealed tube. Do not

place control in the trash at the end of its useful life.

If this control is replacing a control that contains mercury

in a sealed tube, do not place your old control in the trash.

Contact your local waste management authority for

instructions regarding recycling and the proper disposal of

this control, or of an old control containing mercury in a

sealed tube.

If you have questions, call Honeywell at 1-800-468-1502.

M3375

Installation Instructions for the Trained Service Technician.

TABLE 1—THERMOSTAT/SUBBASE AND SYSTEM COMPATIBILITY.

Thermostat/ Application

Subbase Model

Number

a

Mini-Zone Mabs II, Mabs II-L Mabs XX Stages

T874A/Q674B Zone 1; conventional Zone 1; conventional Any zone; conventional heat-cool. Single-stage

heat-cool. heat-cool.

T874A/Q674D Zones other than zone 1; Zones other than zone 1; Not applicable Single-stage

conventional heat-cool. conventional heat-cool.

T874A/Q674E Not applicable Not applicable Any zone; conventional heat-cool. Single-stage

T874D/Q674B Not applicable Zone 1; conventional Any zone; conventional heat-cool. Multistage

heat-cool.

T874D/Q674D Not applicable Zones other than zone 1; Not applicable Multistage

conventional heat-cool

and heat pump.

T874D/Q674E Not applicable Not applicable Any zone; conventional heat-cool. Multistage

a

Subbase not included with thermostat; order separately.

Application

These T874A,D Zone Thermostats and Q674B,D,E

Subbases provide 24 to 30 Vac temperature control in

Honeywell Trol-A-Temp heating/cooling zone systems.

See Table 1 for thermostat/subbase and system compatibil-

ity; see Table 2 for thermostat specifications. For complete

Honeywell Trol-A-Temp System specification and appli-

cation information, refer to the system specification in-

cluded with the control panel.