Honeywell Q682 User Manual
T8190A/191108AJ, Q682
Heating or Cooling
Thermostat and Wallplate
or Heating/Cooling
Thermostat and Subbase
D.F. Rev. 9-94 ©Honeywell Inc. 1994 Form Number 69-0643—1
M3375
Welcome…
to the world of energy savings with your new
Honeywell thermostat. The Honeywell name is
your assurance of accurate control and reliable
operation for years to come.
Your new thermostat will automatically lower
and raise the temperature in your home one or
more times every 24 hours. This allows you to
significantly lower your fuel costs, while awakening (or returning home) to a comfortable
temperature.
Read this manual to learn how to use your
new thermostat.
not
M3375
place
Recycling Notice
This control contains mercury in a sealed
tube. Do
of its useful life.
contains mercury in a sealed tube, do
your old control in the trash.
authority for instructions regarding recycling and
the proper disposal of this control, or of an old
control containing mercury in a sealed tube.
2 69-0643—1
not
place control in the trash at the end
If this control is replacing a control that
Contact your local waste management
Table of Contents
Page
Features of Your Thermostat ............................................................................................................ 4
Setting the Temperature .................................................................................................................. 7
Inserting Timer Batteries ................................................................................................................... 8
Setting the Timer ............................................................................................................................... 9
Programming................................................................................................................................... 10
Setting Subbase Switches .............................................................................................................. 13
Troubleshooting .............................................................................................................................. 14
Servicing the Thermostat ................................................................................................................ 22
Cycle Rate Adjustment ............................................................................................................... 22
Thermometer Adjustment ........................................................................................................... 23
Warranty.......................................................................................................................................... 27
3 69-0643—1
Features Of Your
Thermostat
1
1 FLIP-UP COVER. Lift it up to set clock for
energy saving and normal temperature
periods.
2 THERMOSTAT COVER. Lift up and remove
4
2
to adjust heat anticipator.
3 THERMOMETER. Provides accurate room
temperature reading.
4 TEMPERATURE SETTING LEVERS. Left
(blue mark) controls the low temperature,
right (red mark) controls the high temperature.
5 TIMER. This timer provides a 24-hour
slotted dial to hold the programming pins.
6 TIMER SETTING KNOB. Turn clockwise
to match the correct AM or PM time to
the time indicator.
M7349
3
7 TIME INDICATOR. Arrow head (triangle
shape) indicates low (blue) temperature
setting or high (red) temperature setting in
control on program index wheel. Also
indicates time on 24-hour dial.
4 69-0643—1
8 PROGRAM INDEX WHEEL. Controls high
and low temperature at specific time of day
as set by program pins.
9 PROGRAM PINS. Must be inserted into 24-
hour timer dial slots to control program
index wheel.
10 PIN SLOTS. Located on 24-hour dial at 10-
minute intervals for program pin insertion.
11 PROGRAM DIAL. 24-hour dial with light
band to indicate daytime and dark band to
indicator nighttime.
12 HEAT ANTICIPATOR SCALEPLATE.
Calibrated to match the heating system
current draw in amperes.
13 ANTICIPATOR SETTING LEVER. Must be
adjusted to match the heating system
primary control current.
14 MERCURY BULB AND BIMETAL ELE-
MENT (2). Provide automatic temperature
control by switching the heating or cooling
system on or off.
10
5
9
6
11
8
12
7
14
13
M7350
5 69-0643—1
15 WALLPLATE (Included with thermostat.)
Provides mounting base and wiring
connections for heating-only or cooling-only
thermostat.
16 SUBBASE (Optional, not included with
thermostat; ordered separately.) Provides
mounting base, wiring connections and
manual switching control for heating/cooling
thermostat. See Setting Subbase Switches
section for additional information.
15
M2421
O
B
R
W
G
16
FAN
Y
AUTO OFF
HEATON
COOL
M 719
6 69-0643—1
Setting the Temperature
For Heating:
■ Set the left lever (blue mark) to the energy
saving temperature you want when you are
sleeping or your home is unoccupied.
■ Set the right lever (red mark) to the tempera-
ture you want for normal comfort periods.
NOTE: You may override the time program by
setting both the red and blue levers to the
same temperature setpoint.
For Cooling:
■ Set the left lever (blue mark) to the tempera-
ture you want for normal comfort periods.
■ Set the right lever (red mark) to the energy
saving temperature you want when you are
sleeping or your home is unoccupied.
LOW TEMPERATURE
SETTING LEVER
50
50
607080
60 70 80
HIGH
TEMPERATURE
SETTING
LEVER
M8586
Fig. 1—Setting high and low temperature
setting levers.
7 69-0643—1
Inserting Timer Batteries
Power is supplied to the timer by the 24 Vac
transformer, by two AAA alkaline batteries
(included), or by the heating or cooling control
circuit. Backup batteries may be installed to
supply power to the timer if power is interrupted
when using a 24 Vac powering method. Install
batteries in thermostat as shown in Fig. 2. Once
a year or when batteries are dead, replace with
two new AAA alkaline batteries. We recommend
Energizer® batteries. Properly dispose of old
batteries.
BATTERY LOCATION FOR
(2) AAA BATTERIES;
INSTALL WITH POSITIVE
ENDS UP
M8585
Fig. 2—Inserting timer batteries.
8 69-0643—1
Setting the Timer
■ Lift thermostat flip-up cover and you’ll find the
24-hour program dial, slotted in 10-minute
increments. Adjust the timer to the current
time by carefully turning the knob clockwise
. DO NOT reverse the knob.
■ When time is correctly set, the time indicator
arrow (triangle shape) will point to the correct
time and corresponding daytime (light) or
night-time (dark) band of the program dial.
See Fig. 3
Example: For 11 PM, the time indicator arrow
will point directly to the dark band. For 11
AM, the arrow will point to the light band.
the knob carefully in a clockwise direction 23
hours. Do NOT reverse the knob, or damage to
timer mechanism may occur.
PROGRAM DIAL
PROGRAM
PIN (6)
TIMER
SETTING
KNOB
TIME
INDICATOR
ARROW
Daylight Saving Time
When Daylight Saving Time starts, move the
knob carefully in a clockwise direction one
hour. When Daylight Saving Time ends, move
M 821
TIME INDICATOR ARROW
Fig. 3—Setting the timer.
9 69-0643—1
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