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Auxiliary controls on your Zoneline.
Load Shedding (Central Desk Control)
This feature is active only if the unit is in
CDC mode. When this switch is enabled
(UP)
,
the indoor fan can be turned ON or OFF with
the unit controls.
Freeze Sentinel
When this switch is enabled
(UP)
, it turns OFF
the freeze sentinel protection feature. With the
switch disabled
(DOWN)
, the freeze sentinel is
activated, which automatically provides heat
without user interface. This helps to prevent
plumbing damage by turning the heater and
indoor fan ON at 41°F and OFF at 46°F.
Constant ON Fan
When this switch is enabled
(UP)
, it allows the
indoor fan to run continuously, at high speed,
even if the unit is in the STOP position.
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.
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.
HIGH
COOL
1 2 3 4 5 6 1 2 3 4 5 67 8
UP
DOWN
UP
DOWN
TL1 (C) (Temp. Limit 1–Cool)
TL2 (C) (Temp. Limit 2–Cool)
TL3 (C) (Temp. Limit 3–Cool)
7 8
HIGH
COOL
1 2 3 4 5 6 1 2 3 4 5 67 8
UP
DOWN
UP
DOWN
TL1 (H) (Temp. Limit 1–Heat)
TL2 (H) (Temp. Limit 2–Heat)
TL3 (H) (Temp. Limit 3–Heat)
7 8
Temperature limiting during COOL mode
(all temperatures shown in °F)
UP DOWN Minimum Maximum
NONE 1, 2, 3 60° 85°
1 2, 3 64° 85°
1, 2 3 66° 85°
2 1, 3 68° 85°
2, 3 1 70° 85°
1, 2, 3 NONE 72° 85°
1, 3 2 74° 85°
3 1, 2 76° 85°
Temperature limiting during HEAT mode
(all temperatures shown in °F)
UP DOWN Minimum Maximum
NONE 4, 5, 6 60° 85°
4 5, 6 60° 80°
4, 5 6 60° 78°
5 4, 6 60° 76°
5, 6 4 60° 74°
4, 5, 6 NONE 60° 72°
4, 6 5 60° 70°
6 4, 5 60° 65°
Consumer Support Troubleshooting Tips Care and Cleaning Operating Instructions Safety Instructions
LOAD SHEDDING (CDC)
FREEZE Sen (Freeze Sentinel)
CONST FAN (Constant
ON Fan)