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T8411R ELECTRONIC HEAT PUMP THERMOSTAT
5 69-1481-1
Set Temperature Setpoint
NOTE: Temperature setpoint range is 40° to 99°F (4° to
39°C).
The temperature setpoint and the room temperature are
shown separately on the digital display. The ▼ indicator
points to Set when the temperature setpoint is displayed
and to Room when the room temperature is displayed
.
To set temperature setpoint:
1. Select Heat or Cool by sliding the SYSTEM switch
in the lower right corner of the thermostat to the
desired mode. See Fig. 7.
2. To display the temperature setpoint on the digital
display, press either the ▲ or ▼ key once. The
temperature setpoint is displayed for approxi-
mately five seconds as the indicator points to Set
and flashes.
3. To increase the temperature setpoint press the ▲
key. Each press changes the setpoint one degree;
press and hold to change the setpoint several
degrees.
4. To decrease the temperature setpoint press the ▼
key. Each press changes the setpoint one degree;
press and hold to change the setpoint several
degrees.
Setting °F/°C Indication and Heat Cycle Rate
NOTE: To save changes to the °F/°C indication and the
heat cycle rate, all seven steps must be com-
pleted.
In installer setup mode, steps 2 through 5, each
press of the ▲ key momentarily displays 01 and
each press of the ▼ key momentarily displays
02. When the keys are released, these two-digit
codes are no longer displayed.
To set the °F/°C indication and heat cycle rate:
1. If the temperature is displayed in °F, set the tem-
perature setpoint to 52°F. If the room temperature
is displayed in °C, set the temperature setpoint to
11°C.
2. Press the ▲▼ keys simultaneously for more than
one second to light all segments on display and to
enter installer setup mode. When the keys are
released, a two-digit software revision code is dis-
played.
OPTIONAL SYSTEM CHECKOUT
When the heat or cool outputs are turned on, the five-
minute off-timer safety feature is bypassed.
When in steps 2 and 3 only, the
▼
key can be used to
turn heat or cool outputs on and off. Change the
SYSTEM switch setting to test heat or cool outputs. No
action takes place If the system switch is in the Off
position.
The following examples of system settings show a two
digit software code on the display. The code shown is
only an example; codes may vary.
System setting at Heat:
To turn heat on, press the ▼ key.
To turn auxiliary heat on, press the ▼ key.
To turn auxiliary heat off, press the ▼ key a third time.
To turn heat off, press the ▼ key a fourth time.
System setting at Cool:
To turn cool on, press the ▼ key.
To turn cool off, press the ▼ key.
3. Press the ▲ key. Factory information is displayed.
A typical example is shown, but information dis-
played varies by model. This information is for fac-
tory use only.
4. Press the ▲ key again to display °C or °F.
Set
Room
INDICATOR
ROOM TEMPERATURE
SETPOINT TEMPERATURE
M14679
M14680
M14681
M14682
M14683
M18426
M18431
M18432
Aux Ht
M18433
M18434
M18435
M18434
M14688