Copyright 2003 Carrier Corporation
•
Indianapolis, IN 46231 4-03
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book
1
4
Page 8
Catalog No. 02TS-TA6
Printed in U.S.A.
PC 101
Form TSTAT-6PD
Tab
misc misc
Replaces: TSTAT-5PD
Operational information
Five-minute compressor timeguard
This timer prevents the compressor from starting unless it has been off for at least 5 minutes. It can be defeated for 1 cycle by
simultaneously pressing the FAN mode button and INCREASE TEMPERATURE (UP) button.
Heat/Cool set points (desired temperature)
A minimum difference of 2° is enforced between heating and cooling desired temperatures. This is done by allowing one
setting to “push” the other, to maintain this difference. (Thermidistat Control is adjustable.) Builder’s thermostats are
controlled by a single set point.
Equipment on indicators (Non-Programmable models)
When cooling equipment is ON, a COOL ON icon is displayed above the room temperature display. When heating equipment
is ON, a HEAT ON icon is displayed above the room temperature display.
Equipment on indicators (Thermidistat Control)
When cooling equipment is ON, a COOL icon preceded by a small triangle is displayed below the cool set point. While
cooling equipment turn on is delayed by a staging or cycle timer, the triangle and the word COOL will flash. The same is true
for the HEAT icon and its preceding triangle located under the heat set point. The 2 triangles are also used to indicate the state
of the humidify and dehumidify outputs. See next section.
Humidify/dehumidify output on indicators (Thermidistat Control)
Within humidity select screen (selected by Humidity button and indicated by “hu” or “dhu” on clock display), the triangle
under humidity set point will be on while humidify output is on. The triangle under dehumidify set point will be on while
dehumidify output is active (turned off, because this output is reverse logic).
Auto changeover
When auto changeover mode is selected, a change from heat to cool (or vice versa) will not occur until an opposite mode
demand has existed for 20 minutes. If set point is changed, the 20 minute requirement is deleted. Auto changeover mode can
be disabled. Builder’s and Standard Programmable thermostats are manual changeover.
Emergency heat mode
When thermostat is controlling a heat pump and emergency heat is selected, all Y signals are locked out, and W becomes
energized upon a call for heat.
Smart Recovery (Programmable models)
With Smart Recovery selected, transition out of setback begins a fixed time period before selected recovery time and gradually
adjusts room temperature so that the desired temperature will be achieved at selected recovery time.
Room Temperature Offset (All models)
Room temperature may be deliberately offset by up to 5°F in either direction.
Maximum On/Off Deadband
Maximum sensed temperature difference between ON and OFF is 0.8°F for Builder’s thermostats and 0.6°F for all other
models.
