Mount The Thermostat - Honeywell TRADELINE T8090A User Manual

WIRING
Follow the instructions provided by the heating, cooling
or heating-cooling equipment manufacturer. If not avail-
able, refer to the Typical Wiring Diagrams section.
Disconnect power supply before making wiring connec-
tions to prevent electrical shock or equipment damage.
NOTE: All wiring must comply with local electrical codes
and ordinances.
This thermostat clock can be powered by 24 Vac trans-
former with battery backup, 24 Vac transformer only or
battery only, or through the control system. Refer to Figs.
16 through 19 for hookup diagrams of typical powering
applications.
Wallplate (Heating-only wallplate included)
Refer to Fig. 5 and strip thermostat wire insulation as
necessary.
For heating-only systems, connect wires to R, W and C
(if applicable) terminals. See Fig. 20. Firmly tighten screws.
Push excess wire back into the wall.
Plug the hole in the wall with nonhardening caulk, putty,
or nonflammable insulation to prevent drafts from affect-
ing thermostat operation.
NOTE: For cooling only or heating-cooling applications,
refer to Installation Instructions packed with the wallplate
or subbase.
Fig. 5—Methods of connecting terminals.
FOR STRAIGHT
CONNECTION
STRIP 5/16 in. [8 mm]
FOR WRAPAROUND
CONNECTION
STRIP 7/16 in. [11 mm]

MOUNT THE THERMOSTAT

Note the tabs on the top inside edge of the thermostat
base. These tabs fit the slots molded into the top of the
wallplate or subbase.
Hang thermostat base on wallplate or subbase.
Insert the two captive mounting screws located in the
bottom corners of the base. See Fig. 6.
Firmly tighten the screws.
69-0750—1
INSERT CLOCK BATTERIES
or two AAA alkaline batteries (included), or by the heating
or cooling control circuit. Backup batteries may be in-
stalled to supply power to the clock if power is interrupted
when using 24 Vac powering method.
new AAA alkaline batteries. We recommend Energizer
batteries.
BARRIER
M1556B
4
Fig. 6—Thermostat mounting.
TAB (2)
MOUNTING SLOT (2)
1
35
30
2 0
THERMOSTAT WALLPLATE
OR SUBBASE
M3408 BASE
Power is supplied to the clock by the 24 Vac transformer
Install the batteries in the thermostat. See Fig. 7.
Once a year or when batteries are dead, replace with two
Fig. 7—Insert clock batteries.
BATTERY LOCATION FOR
(2) AAA BATTERIES;
INSTALL WITH POSITIVE
ENDS UP
JUMPER WIRES
CAPTIVE
MOUNTING SCREWS
®
M7188