Honeywell Q682B Application Manual

Subbase Use with Thermostat
Q682B T8082A; T8085A,B,C;
T8090A, T8095, T8190
Q682D T8082A; T8085A,B,C;
T8090A, T8095, T8190
Q682L T8085R
WHEN INSTALLING THIS PRODUCT
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a hazardous
condition.
2. Check the ratings given in the instructions and on the
product to make sure the product is suitable for your
application.
3. Installer must be a trained, experienced service tech-
nician.
4. After installation is complete, check out product
operation as provided in these instructions.
CAUTION
1. Disconnect power supply to prevent electrical
shock or equipment damage.
2. On systems using a low-voltage gas valve,
never apply a jumper across valve coil terminals.
This may burn out thermostat heat anticipator.
IMPORTANT:
1. T8082, T8085, T8090, T8190 and T8095 Fuel Saver
Thermostats are mounted at true level when cali-
brated at the factory. An inaccurately leveled sub-
base will cause the temperature control to deviate
from set point.
2. Refer to thermostat Owner Manual for complete
installation instructions.
LOCATION
Locate the subbase about 5 ft. [1.5m] above the floor in
an area with good air circulation at average temperature.
Do not mount the subbase where the thermostat may be
affected by:
— drafts, or dead spots behind doors and in corners.
— hot or cold air from ducts.
— radiant heat from the sun, appliances or fireplace.
— concealed pipes and chimneys.
— unheated (uncooled) areas, such as an outside wall
behind the thermostat.
Q682B,D,L Switching Subbases
System
HEAT-OFF-
COOL
ON-OFF or
AUTO-OFF
EM.HT.-HEAT-
OFF-COOL
Installation
J. H. • Rev. 4-94 • ©Honeywell Inc. 1994 • Form Number 60-1179—7
Switching
Fan
AUTO-ON
AUTO-ON
AUTO-ON
MOUNTING
1. If replacing an existing thermostat, remove thermo-
stat and wallplate or subbase. To avoid miswiring, label
wires with the letter or number of each terminal as it is
disconnected. Be sure insulation on thermostat wires is in
good condition (not cracked, worn or frayed). Replace
wires if necessary.
If a new installation, prepare an opening for the thermo-
stat wires, run wires and pull about 3 in. [76 mm] through
the opening.
NOTE: Color-coded, 18-gauge thermostat cable (Under-
writers Laboratories Inc., approved limited energy safety
control wire) with one conductor to each wiring terminal
is recommended.
2. Use a spirit level for leveling the Q682 Switching
Subbase (Fig. 1) and mount to the wall with the three
screws provided. If mounting to a horizontal outlet box, use
the two machine screws furnished.
Fig. 1—Leveling the Q682 Switching Subbase.
PLUMB
LINE
PLUMB
BOB OR
WEIGHT
WIRING
Disconnect power supply before making wiring connec-
tions to prevent electrical shock or equipment damage.
All wiring must comply with local electrical codes and
ordinances.
1
Application
Application LED Options
Heating/Cooling Clogged Filter LED
Heating-only or
Cooling-only
Heat pump EM.HT. and AUX.
R
G
FAN
ON AUTO
None
HT. LEDs
SPIRIT LEVEL
O
B
W
Y
COOL
HEAT OFF
M1555
60-1179—7