Johnson Controls Hx 3 S1-THXU430W Installation Manual page 45

5407934-UIM-C-1119
TABLE 10: System Settings: 2-Stage AC/HP Systems
Default
Name
Setting
Balance
35°F
Point
Low Tem-
perature
ON
Cutout
(LTCO)
Switch Point 35°F
Compressor
OFF
Delay
Hot Heat
OFF
Pump
Y2 Lock OFF
Defrost
70°F
Temp
Fossil Fuel OFF
Demand
Disabled
Response
Demand
Response 4°F
Action
Johnson Controls Ducted Systems
Available
Settings
0°F, 10°F, 15°F,
20°F, 25°F, 30°F,
35°F, 40°F, 45°F
ON, -20°F, -10°F
0°F, 10°F, 15°F,
20°F, 25°F, 30°F,
35°F
35°F, 40°F, 45°F
OFF or ON
OFF or ON
OFF or ON
50°F, 60°F, 70°F,
80°F
OFF or ON
Disabled,
Enabled (Open),
Enabled (Closed)
4°F, 6°F, 8°F,
10°F, Shut Down
Explanation
Prevents the operation of auxiliary
heat above the specified tempera-
ture
Prevents compressor operation
below the specified temperature
Works in conjunction with the
Forced Second Stage feature of the
hot heat pump to allow more comfort
Enables or disables the Compressor
Delay feature. This feature allows
for smooth transitions and proper
cycling of the reversing valve.
Enables or disables the Hot Heat
Pump feature. This feature provides
increased discharge air tempera-
tures by reducing indoor blower
speed while forcing the outdoor unit
into a higher stage for increased
comfort.
Enables or disables the Y2 Lock fea-
ture. This feature only applies to
second-stage compressor opera-
tion that is initiated based on the
thermostat signals. This feature
does not apply to the Hot Heat
Pump functionality.
If necessary, you can increase this
temperature setpoint for more
aggressive defrost operation.
The jumper can be set to ON or
OFF. The jumper is in the ON posi-
tion for a fossil fuel furnace installa-
tion.
Enables or disables the Demand
Response feature
When Demand Response is active,
the thermostat updates the setpoint
to the selected temperature value.
45