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Temperature Limiting
Temperature limiting can reduce energy costs
by limiting the lowest temperature that can be
set for cooling and the highest temperature that
can be set for heating. Temperature limiting is
controlled by the second six auxiliary switches.
UP
DOWN
1
2
3
4
5
6
7
8
TL1 (C) (Temp. Limit 1–Cool)
TL2 (C) (Temp. Limit 2–Cool)
TL3 (C) (Temp. Limit 3–Cool)
Temperature limiting during COOL mode
(all temperatures shown in °F)
UP
DOWN
NONE
1, 2, 3
1
2, 3
1, 2
3
2
1, 3
2, 3
1
1, 2, 3
NONE
1, 3
2
3
1, 2
Heat Sentinel
When this switch is enabled (UP), it turns ON
the heat sentinel protection feature. With the
switch disabled (DOWN), the heat sentinel is
de-activated. This feature automatically provides
cooling without user interface. This helps to
prevent an excessively hot room by turning the
air conditioner ON at 85°F and OFF at 80°F.
Heat Boost
(AZ3800 only)
When this switch is enabled (UP) and outdoor
temperatures are between 20°F and 46°F, heat
pump only operation is locked out. This setting is
used to provide supplementary heat to the heat
pump operation in conditions where the heat
pump only operation is not sufficient to maintain
a consistent, comfortable room temperature.
NOTE: This is an auxiliary switch for AZ2800 models and
must remain in the (DOWN) position.
HIGH
UP
DOWN
COOL
1
2
3
4
5
6
7
8
Minimum
Maximum
60°
85°
64°
85°
66°
85°
68°
85°
70°
85°
72°
85°
74°
85°
76°
85°
The first three switches are used to select the
cooling limits, and the remaining three switches
are used to control the heating limits. This
feature is not available with the Remote
Thermostat—Class 2.
UP
DOWN
1
2
3
4
5
6
7
8
TL1 (H) (Temp. Limit 1–Heat)
TL2 (H) (Temp. Limit 2–Heat)
TL3 (H) (Temp. Limit 3–Heat)
Temperature limiting during HEAT mode
(all temperatures shown in °F)
UP
DOWN
NONE
4, 5, 6
4
5, 6
4, 5
6
5
4, 6
5, 6
4
4, 5, 6
NONE
4, 6
5
6
4, 5
BOOST (Heat Boost Operation)
ge.com
HIGH
UP
DOWN
COOL
1
2
3
4
5
6
7
8
Minimum
Maximum
60°
85°
60°
80°
60°
78°
60°
76°
60°
74°
60°
72°
60°
70°
60°
65°
Heat Sentinel
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