Honeywell T8635L Installation Instructions

T8635L MICROELECTRONIC COMMUNICATING PROGRAMMABLE THERMOSTAT
69-1331—5 6
SETTINGS
Thermostat Keys
The thermostat keys are used to:
— Set current day and time.
— Program times and setpoints for heating and cooling.
— Temporarily override program temperatures.
— Display present setting.
— Configure Installer Setup.
— Perform Installer System Test.
— Display outdoor temperature (when C7089B is
connected).
— Set the System key setting.
— Set the Fan key setting.
— Set, view and clear the filter setting.
See Fig. 10 for key location.
Fig. 10. Thermostat key locations and descriptions.
System and Fan Keys
Use the System and Fan keys on the thermostat to
select the system and fan settings.
1. Use the System key setting (Fig. 11) to control the
thermostat operation:
Heat: The thermostat controls the heating. When
the thermostat is calling for heat, a is
indicated in the display.
Cool: The thermostat controls the cooling. When
the thermostat is calling for cool, a is
indicated in the display.
Auto: The thermostat controls heating and cool-
ing, automatically switching from heat to
cool based on room temperature and
thermostat setpoints.
NOTE: Auto is an option on non-zoned systems
using W8635A,B or on zoned systems
using W8835.
Off: Both Heating and cooling are off.
Em Heat: The thermostat controls heating. When
thermostat is calling for emergency heat,
a and Em Ht are indicated in display.
NOTE: Em Heat is an option on systems using
the W8635B or W8835 and configured
for a heat pump with auxiliary heat.
Fig. 11. System key setting.
IMPORTANT
• The T8635L has an adjustable compressor
protection setting
 it can be set from 0 to 5
minutes.
• The thermostat waits to call for cooling (or
heating when used with the heat pumps):
—when power is first established,
—when a power outage occurs or
—when the call has just ended and another
call is immediately attempted.
• “wait” is displayed during the compressor pro-
tection period.
• To override the compressor protection during
installation, refer to the Installer System Test
section.
• To permanently override the compressor pro-
tection, see Installer Setup No. 33 and change
the setting to 0. See Table 6.
Auto: The thermostat automatically changes
between heating and cooling operation,
depending on the indoor temperature.
Time
Set Program
SystemFilter Fan
Run
Program
Hold Temp
Set Current
Day/Time
Wake
Leave
Return Sleep
Day
Heat/Cool
Settings
Daylight
Time
Copy
INCREASE TEMPERATURE SETTING OR SCROLL
FORWARD THROUGH INSTALLER SETUP OPTIONS
DECREASE
TEMPERATURE
SETTING OR
SCROLL BACKWARD
THROUGH INSTALLER
SETUP OPTIONS
DISPLAY
INFORMATION
SUCH AS PRESENT
SETTINGS
RETURN TO NORMAL
OPERATIONS
E
NTER INDEFINITE
O
R TIMED HOLD MODE
SET CURRENT
DAY AND TIME
S
ET CURRENT OR
P
ROGRAM DAY
C
HANGE BETWEEN
D
AYLIGHT SAVINGS
A
ND STANDARD TIME
I
NCREASE TIME
S
ETTING OR SCROLL
F
ORWARD THROUGH
I
NSTALLER SETUP
A
ND SYSTEM TEST
D
ECREASE TIME SETTING
O
R SCROLL BACKWARD
T
HROUGH INSTALLER
S
ETUP AND SYSTEM TEST
COPY ONE
PROGRAMMED DAY
TO ANOTHER DAY
SET WAKE TIMES
AND SETPOINTS
CHANGE BETWEEN
HEATING AND
COOLING SETPOINTS
SET LEAVE TIMES
AND SETPOINTS
SET RETURN TIMES
AND SETPOINTS
SET SLEEP TIMES
AND SETPOINTS
M17765
SELECT SYSTEM
OPERATION (HEAT,
COOL, OFF, AUTO)
SELECT FILTER
EXPIRATION IN
NUMBER OF DAYS
SELECT FAN
OPERATION
Time
Set Program
SystemFilter Fan
Run
Program
Hold Temp
Set Current
Day/Time
Wake
Leave
Return Sleep
Day
Heat/Cool
Settings
Daylight
Time
Copy
System
M1776
4
System
Heat
Off
Cool
Auto

Honeywell T8635L Specifications

General

Brand	Honeywell
Model	T8635L
Category	Thermostat
Language	English