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505048M 08/07
Service Indicator
When abnormal equipment operation is detected, the
SERVICE indicator will flash on the screen (see figure 17).
This indicates that the equipment requires service from a
qualified service technician.
I0:i4
PROG A B C D HOLD
79
ROOM
SERVICE
°
FILTER
AM
PM
FAN
ON
AUTO
SYSTEM
COOL
OFF
HEAT
MO TU WE TH FR SA SU
Figure 17. Service Indicator Flashing
Thermostat RESET
Under some abnormal conditions, it may be necessary to
reset" the thermostat to its default condition. Such a RE-
SET would delete all programming and settings and there-
fore should only be used on rare occasions when the the
thermostat fails to function as designd and/or as pro-
grammed. Such an instance can occur as a result of a pow-
er surge or similar electrical disturbance (e.g. after an elec-
trical storm or power outage). The RESET button can be
used to recover from this situation.
CAUTION
When the RESET button is pressed, ALL settings re-
vert back to the defaults, including the default pro-
gram (see tables 2 and 3).
The RESET button is an unlabeled, recessed button lo-
cated behind the door on the right−hand side of the thermo-
stat, below the SETTINGS button (see figure 3). Use a pa-
per clip or small pencil to press the RESET button; ALL
thermostat settings will be reset to the defaults listed in the
Default Thermostat Settings section.
Removing/Installing Thermostat
The thermostat hinges on tabs on the top of the subbase;
no tool is needed to remove the thermostat from the sub-
base. Pivot the bottom of the thermostat outward (releas-
ing the snaps), then lift up to remove.
To replace it, first position the top tilted toward the wall
bracket and align it until you feel the tabs and slots engage;
then, while the top is in place, pivot the bottom toward the
wall until the thermostat snaps into place.
Default Thermostat Settings
Default thermostat settings are in table 2 and the default
program is shown in table 3.
Table 2. Default Thermostat Settings
Mode Heat (Permanent Hold)
Setpoint 70°F (or 21°C)
Fan Auto
Filter Reminder OFF
Maintenance Reminder OFF
Equipment Protection
Timers
Reset Back to Zero
Table 3. Default Program Settings
Programs Time
Temperature
(Heat)
Temperature
(Cool)
Weekday − A 6:00am 70_F / 21°C 78_F / 26°C
Weekday − B 8:00am 62_F / 17°C 85_F / 29°C
Weekday − C 6:00pm 70_F / 21°C 78_F / 26°C
Weekday − D 10:00pm 62_F / 17°C 82_F / 28°C
Weekend − A 6:00am 70_F / 21°C 78_F / 26°C
Weekend − B 8:00am 62_F / 17°C 85_F / 29°C
Weekend − C 6:00pm 70_F / 21°C 78_F / 26°C
Weekend − D 10:00pm 62_F / 17°C 82_F / 28°C
Weekday Monday, Tuesday, Wednesday,
Thursday, Friday
Weekend Saturday, Sunday
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