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Table A
If the code letter
then mark the wire
on your existing
with label shown
Thermostat is
NOTE: Do not connect a Common wire (sometimes labeled
C) to any terminal on this thermostat. Tape up the wire and
do not use. This wire provides electricity to non-battery
powered thermostats.
Mount Wallplate and Thermostat
• Remove the wall plate from your thermostat by pressing
the release tab on the bottom of the thermostat. See
Figure 2.
Figure 2.
• Position wallplate on wall and pull existing wires through
large opening. Then level for appearance. Mark holes for
plastic anchors provided if your existing holes do not line
up with those on the wall plate.
• Drill holes with 3/16" bit and gently tap anchors into the
holes until flush with wall.
• Reposition wallplate to wall, pulling wires through large
opening. Insert
mounting screws provided into wall anchor and tighten.
See Figure 3.
Figure 3.
NOTE: 5-Wire Systems
If your thermostat has one wire marked R or Rh (2, 3, or
4-wire system), then leave the jumper wire between the Rh
and Rc terminals on the wallplate. Otherwise, if you have
separate Rh and Rc wires (5-wire system), then remove
the jumper wire between the Rh and Rc terminals.
Connect Wires and Mount Thermostat to Wallplate
• Match and connect the labeled wires to the appropriate
coded terminal screws on the wallplate. (See Figure 4
and 5.) Ignore any wires which may be present, but which
were not connected to the old thermostat.
• Refer to the Wiring Diagrams below to be sure your
system is wired correctly.
• If your system is a single stage heat pump and uses an
O or B wire, you must move the System Selector switch
inside the thermostat to the heat pump (HP) position. If
you have a normal furnace or electric system, leave the
switch in the Standard (STD) position. Refer to the System
Selector section for more information on this switch.
• Be sure to tighten the terminal screws securely, otherwise
a loose wire could cause operational problems with your
system or thermostat.
• Push excess wires back into the hole to prevent
interference when installing the thermostat to the
wallplate.
• Make sure the System switch is set to OFF, and the
Fan switch is set to AUTO.
• Insert the bottom tabs on the thermostat body into the
slots at the bottom of the wallplate. Press the top of the
and connect to
thermostat body to snap it into the wallplate. Refer to
thermostat terminal
shown
Figure 6.
NOTE: Do not force the thermostat onto the wallplate, as
the terminal pins may be damaged. If it does not snap prop-
erly, the thermostat may not work.
• Insert the two AA size alkaline batteries, observing the
polarity marked inside the battery compartment.
• Switch on the main power at the panel or furnace.
Figure 4.
Wiring Diagrams
Figure 5.
Figure 6.
TROUBLESHOOTING
Problem
Solution
No display
1. Check batteries connections and
batteries.
2. Remove the batteries and wait for
about 1 minute, then replace
batteries.
Entire display dims
1. Replace batteries.
1. Move HG/HE selector to correct
Auto fan does not
position.
turn on properly
1. Check that the function switch is
Heating or cooling does
in the correct position (HEAT or
not go on or off
COOL).
2. There may be as much as a
4-minute delay before the system
turns on – wait and check
(Compressor protection delay.)
3. Check your circuit breakers and
switches to ensure there is power
to the system.
4. Replace batteries.
5. Make sure your furnace blower
door is closed properly.
6. If your non-heat pump system only
uses 4 wires, be sure the jumper
wire is installed between the Rh/B
and Rc/O terminals.
7. Check the position of the selector
switch: Standard or Heat Pump.
8. If you have single stage heat pump,
be sure the jumper wire is installed
between the Y and W terminals.
1. Remove the batteries, hold any key
Erratic display
then replace the batteries.
Reprogram.
Unit continues to operate
1. Replace unit.
in the OFF position
Thermostat permanently
1. Replace unit.
reads HI, LO, or Er
If you experience any other problems, contact Technical Support at:
www.invensyscontrols.com or (800) 445-8299.
Two Year Limited Warranty
Invensys Controls warrants to the original contractor installer
or to the original consumer user that each new Robertshaw
Product shall be free from defects in materials and workman-
ship under normal use and service for a period of two (2)
years from the date of manufacture ("Warranty Period").
If any Product fails within the applicable Warranty Period,
Invensys Controls shall, at its sole option, repair or replace
the Product, provided that the Product is returned to
Invensys Controls' facility or designated agent within the
Warranty Period, with transportation charges prepaid, and
that the Product, upon examination by Invensys Controls, is
found to conform to this warranty. The above warranty does
not apply to: i) batteries; ii) improper installation; iii) Products
that have been damaged, misused, neglected, mishandled,
or altered in any manner whatsoever, and/or; iv) defects or
damage that result from use of the Product in other than its
normal and customary manner or in any manner not in
accordance with Invensys Controls' recommendations
and/or instructions. Any and all costs of labor, thermostat
removal, or reinstallation are not covered under this warranty
and shall be the sole responsibility of the consumer or
installer, as applicable.
THE FOREGOING WARRANTY IS IN LIEU OF AND
EXCLUDES ALL OTHER WARRANTIES, WHETHER VERBAL
OR WRITTEN, EXPRESS OR IMPLIED INCLUDING, EXCEPT
TO THE EXTENT PROHIBITED BY APPLICABLE LAW, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
SHALL INVENSYS CONTROLS BE LIABLE TO CONSUMER,
CONTRACTOR OR ANY THIRD PARTY FOR ANY
CONSEQUENTIAL, INCIDENTIAL, SPECIAL OR PUNITIVE
DAMAGES ARISING FROM OR RELATING TO USE OF THE
PRODUCT INCLUDING, BUT NOT LIMITED TO, LOSS OF
GOODWILL, LOSS OF PROFIT OR REVENUE, AND
PROPERTY DAMAGE, REGARDLESS WHETHER SUCH
LOSS OR DAMAGE IS BASED IN CONTRACT, WARRANTY,
TORT, NEGLIGENCE, STRICT LIABILITY, INDEMNITY,
PRODUCT LIABILITY, OR OTHERWISE AND EVEN IF
INVENSYS CONTROLS HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
191 E. North Avenue
Carol Stream, Illinois 60188
www.invensyscontrols.com
©2007 Invensys Controls
352-00021-003 Rev A 8/07
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