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Installation - Honeywell T8195B Installation Instructions Manual

Heating or cooling and heating/cooling new construction thermostat, wallplate and subbase
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WHEN INSTALLING THIS PRODUCT...
1. Read these instructions carefully. Failure to follow
them could cause a hazardous condition.
2. Installer must be a trained experienced service technician.
3. After installation is complete, check out product op-
eration as provided in these instructions.
IMPORTANT: An incorrectly leveled subbase will cause
the temperature control to deviate from setpoint. It is
not a calibration problem.
CAUTION
1. Disconnect power supply to prevent electrical
shock or equipment damage.
2. To prevent interference with the thermostat link-
age, keep wire length to a minimum and run
wires as close as possible to the subbase.
3. Do not overtighten thermostat captive mount-
ing screws because damage to subbase threads
can result.
4. Do not short across coil terminals on relay. This
can burn out the thermostat heat anticipator.
LOCATION
Locate thermostat about 5 ft [1.5m] above the floor in an
area with good air circulation at average temperature.
Do not mount the thermostat where it may be affected by:
— drafts, or dead spots behind doors and in corners.
— hot or cold air from ducts.
— radiant heat from the sun or appliances.
— concealed pipes and chimneys.
— unheated (uncooled) areas such as an outside wall
behind the thermostat.
Run wires from the heating, cooling, or heating/cooling
equipment to the new thermostat location.
IMPORTANT: This control requires an additional con-
ductor to the control transformer common (e.g., a
typical 2-wire heating system requires three wires be
pulled, a 4-wire heating/cooling requires five wires).
UNPACK THERMOSTAT
Handle your new thermostat carefully; rough handling
may interfere with its accuracy. Before unpacking, refer to
Fig. 1.
Remove and discard the shipping wrap.
IMPORTANT: Save package of screws and instructions
for the homeowner.
Remove the thermostat cover by lifting from the bottom.
Set aside cover until needed later.
Carefully remove the material protecting the mercury
switch bulb.
Loosen two captive mounting screws, and separate wall-
plate (if provided) from back of thermostat base.
MOUNT WALLPLATE OR SUBBASE
Wall Mounting (Fig. 2)
Hold the wallplate or subbase in position on wall (Fig. 2).
Mark holes on the wall for anchors. Use spirit level to
make sure the wallplate or subbase is level.
69-0564—3

Installation

Fig. 1—Unpack thermostat.
CAPTIVE MOUNTING
SCREWS
LIFT
COVER
THERMOSTAT BASE
Drill 3/16-in. holes, and gently tap anchors into holes
until flush with the wall.
Pull wires through the large wiring hole in the wallplate or
subbase.
Loosely fasten the wallplate or subbase to the wall with
the three screws. Do not completely tighten the screws.
Carefully level the wallplate or subbase (Fig. 3), and
firmly tighten the screws.
Fig. 2—Mounting wallplate or subbase to wall.
3 SCREW HOLES
WITH PLASTIC
ANCHORS
FAN
HEATING/COOLING SUBBASE
3 SCREW HOLES
WITH PLASTIC
ANCHORS
HEATING-ONLY
WALLPLATE
2
THERMOSTAT
COVER
1
REMOVE
PACKING
MATERIAL
O
B
R
W
G
Y
COOL
ON
AUTO
HEAT
OFF
M8605
M1552A
M857

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