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THE ROUND® CREATIVE SERIES Y460A2003 THERMOSTAT
Disconnect wires from
the old thermostat or
subbase. Wrap the
wires around a pencil or
other object, as shown,
to prevent them from
falling back into the wall
opening.
NOTE: As you disconnect each wire, use masking
tape to tape the end and label with the letter of
the terminal designation to allow easier recon-
nection to the new subbase.
Keep the old thermostat for reference until your new
thermostat is functioning correctly.
RECYCLING NOTICE
If this control is replacing a control that contains
mercury in a sealed tube, do not place your old
control in the trash. Dispose of it properly.
Contact your local waste management authority for
instructions regarding recycling and the proper disposal
of the old thermostat. If you have questions, call the
Honeywell Customer Response Center at 1-800-468-
1502.
4 MOUNT THE SUBBASE
IMPORTANT:
Install your thermostat about 5 ft (1.5m) above
the floor in an area with good air circulation at
average temperature. Do not install it where it
may be affected by:
— drafts, or dead spots behind doors and in
corners.
— hot or cold air from ducts.
— radiant heat from sun or appliances.
— concealed pipes and chimneys.
— unheated (uncooled) areas such as an outside
wall behind the thermostat.
Bring the thermostat cable through the subbase
entrance hole.
Fasten the subbase to the wall or outlet box with the
mounting screws as shown in the illustration.
1
Q539
SUBBASE
Y460
USE Q539 SUBBASE FOR HEAT AND/OR COOL
1
APPLICATIONS WITH SWITCHING.
69-1358
WIRES THROUGH
WALL OPENING
WALL
THERMOSTAT
CABLE
ENTRANCE
HOLE
CAPTIVE
MOUNTING
SCREWS (3)
M13416
Q539
SUBBASE
M5136
Y460
USE Q539 SUBBASE FOR HEAT AND/OR COOL
1
APPLICATIONS WITH SWITCHING.
Tighten the screws after using a spirit level or plumb
line to accurately level the subbase. It must be level
to maintain accurate calibration.
PLUMB LINE
MARKERS
MOLDED
POST (2)
OPENING FOR
THERMOSTAT
WIRING (PLUG)
(WITH INSULATION)
5 WIRE THE SUBBASE
Follow the instructions provided by the heating or
heating/cooling equipment manufacturer. If not
available, refer to the thermostat wiring diagram.
NOTE: All wiring must comply with local electrical
codes and ordinances.
Wire the Subbase
Refer to the illustration to strip the thermostat wire
insulation from the wire where it connects to the
terminal, as necessary.
Refer to the labels you placed on the wires when you
removed the old thermostat. Match the letter of your
old thermostat wire with the corresponding terminal
letter on your new thermostat.
Connect the wires to the matching terminals on the
subbase. If your old thermostat had an R terminal,
and your new one has RC and RH terminals,
connect the old wire R to terminal RH, and add a
small piece of wire to use as a jumper to connect RC
to RH. The drawing shows how to jumper RC to RH.
2
OUTLET BOX
1
THERMOSTAT
CABLE
ENTRANCE
CAPTIVE
HOLE
MOUNTING
SCREWS (3)
MOUNTING
HOLE (3)
M13417
SPIRIT
LEVEL
MOUNTING
SLOT (3)
M13415
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