Set At
COOL ON
WAKE
Sun Mon Tue Wed Thu Fri Sat
ON
LEAVE
RETURNSLEEP
AMPM
HOLD
Thermostat Quick Reference
The low battery icon is displayed when the AA battery power is low. Whenever
the thermostat detects low battery voltage from the AA batteries, the low battery
icon will begin flashing on the screen for 21 days (if the batteries are not changed).
If the batteries are not changed 22 days after the thermostat detects low battery
voltage, the thermostat screen will only show the flashing battery icon until buttons
are pressed. If the batteries are not changed 43 days after the thermostat detects
low battery voltage, the thermostat screen will only show the flashing battery icon
until buttons are pressed and the set points will offset to 85°F/29°C in cooling and
55°F/13°C in heating. At this stage, set point changes can be made temporarily but,
the set points will change back to defaulted values after a 4-hour period. The
thermostat will continue to perform this low battery flashing, temperature offset
condition until the internal voltage threshold is reached. When the thermostat
internal voltage threshold is reached, all relays will be opened and the thermostat
will become inoperable until new batteries are installed.
Important
Indicates the current room temperature
Time and day of the week
Setpoint:
Displays the user selectable setpoint temperature.
Hold
is displayed when the thermostat program is permanently overridden.
System Operation Indicators:
ON will display when the COOL or HEAT is on. Compressor delay feature is active if
Flashing.
Low Battery Indicator:
Replace batteries when this indicator is shown.
Program Time Periods:
This thermostat has 4 programmable time periods
per day.
Getting to know your thermostat
Wiring
Tech Settings
Wiring Tips
RH & RC Terminals
For single transformer systems, leave the
jumper wire in place between RH and RC.
Remove jumper wire for two transformer
systems.
Heat Pump Systems
If wiring to a heat pump, use a small
piece of wire (not supplied) to connect
terminals W and Y.
(With NO AUX or
Emergency Heat)
C Terminal
The C (common wire) terminal does
not have to be connected when the
thermostat is powered by batteries.
Wire Specifications
Use shielded or non-shielded
18-22 gauge thermostat wire.
Caution:
Electrical Hazard
All components of the control
system and the thermostat
installation must conform to
Class II circuits per the NEC Code.
Warning:
Installation Tip:
Do not overtighten terminal block screws, as this
can damage the terminal block. A damaged terminal block can
keep the thermostat from fitting on the subbase correctly or cause
system operation issues.
Max Torque = 6in-lbs.
Wiring
If you are replacing a thermostat,
make note of the terminal
connections on the thermostat
that is being replaced. In some
cases the wiring connections will
not be color coded. For example,
the green wire may not be
connected to the
G
terminal.
Loosen the terminal block
screws. Insert wires then
retighten terminal block screws.
Place nonflammable insulation
into wall opening to prevent
drafts.
1.
2.
3.
Failure to disconnect the power
before beginning to install this
product can cause electrical shock
or equipment damage.
Terminal Designations
C
O
Heat pump changeover valve
energized in cooling
Heat pump changeover valve
energized in heating
W
Heat relay
RH
Transformer power for heating
RC
Transformer power for cooling
G
Fan relay
Y
Compressor relay
B
Common wire from system
transformer
Features
Temporary and Permanent Hold Feature
Note:
This is a programmable thermostat, and will always be
running a programmed schedule. However, it can be overidden with
a Temporary or Permanent Hold.
Temporary Hold
: With the system in Heat or Cool, anytime the
SET-AT temperature is changed with the + or - buttons, the
thermostat will enter a Temporary Hold. This will be indicated by
“HOLD” flashing and will remain in this hold until the next
programmed time period begins.
Permanent Hold
: To enter a Permnent Hold, press the Hold/Run
button while “HOLD” is flashing. The word “HOLD” will remain on
continuously, indicating a Permanent Hold.
To Return to Running Schedule
: To manually exit permanent hold
and return to scheduled program, press Hold/Run button.
Gas
: For all systems that control the fan during a call for heat, put the
fan operation jumper pin to the
GAS
position.
Electric
: Select Electric to have the thermostat control the fan
during a call for heat.
7
7
Gas or Electric Setup
Fan Operation Switch
Gas
: For systems that control the fan
during a call for heat, put the fan
operation switch to the GAS position.
Electric
: For systems that do not
control the fan during a call for heat,
put the fan operation switch tothe
ELECTRIC position.
HEAT
