20
EN
Operation Elite Control
Parameter Name DX CW Factory Default Parameter Range
P-23
Set Point Temperature
Differential
x x 2
1 = 1°F (.6°C) Differential
2 = 2°F (1°C) Differential
Set the temperature differential in Fahrenheit for all modes of operation: AUTOMATIC, COOL, HEAT, or
AUXILIARY HEAT. Refer to “Choosing the Control Operation” on page 11.
• 1: maintains the room temperature ±1°F (0.6°C) from the desired set point.
• 2: maintains the room temperature ±2°F (1°C) from the desired set point.
I
This setting is applicable to soware revision #B23 and newer.
P-24
Dehumidification Mode
Minimum Temperature
x x 50°F (10°C) 40°F to 75°F (4°C to 24°C)
Set the minimum room temperature (in Fahrenheit) for which DEHUMIDIFICATION mode initiates a
cooling cycle to remove moisture from the air. If the room temperature is below this parameter setting,
DEHUMIDIFICATION mode runs a heating cycle. Refer to “Choosing the Control Operation” on page
11.
I
This setting is applicable to soware revision #B23 and newer.
P-25
Auto Fan Speed
Temperature Differential
x x 2°F (1°C) 1°F to 3°F (0.6°C to 2°C)
Set the incremental differential (with cumulative steps) between the ambient temperature and the set
point temperature at which the fan speed will increment to the next speed.
I
A 1°F (0.6°C) hysteresis in the auto fan speed differential prevents the speed from changing if
the room temperature changes. In addition, programming parameters P-12 and P-23 both have
an effect on the operation of the auto fan speed.
I
This setting is applicable to soware revision #B24 and newer.
P-26
Supply Air High
Temperature Limit
x x OFF
OFF
95°F to 140°F in 5° increments
(35°C to 60°C in 2.8° increments)
Set the maximum supply air-discharge temperature allowed.
• Enabling this parameter has no effect unless parameter P-13 is enabled and set to A-H.
• Use of this parameter requires that the OAT sensor be placed in the supply air stream immediately
downstream of the blower discharge.
• HEAT mode shuts down if the temperature of this sensor exceeds the setting. HEAT mode is
restored when a 10°F (6°C ) hysteresis is satisfied or when power is cycled to the control and the
OAT sensor temperature is less than the setting but still within the hysteresis. SAH is displayed when
this fault occurs.
• Display the discharge temperature by pressing the Up and Down buttons simultaneously (same as
viewing the outside air temperature).
I
This setting is applicable to soware revision #B24 and newer.
P-27
Seawater Low-Limit
Adjustment
x 40°F (4.4 °C) 35 °F to 50 °F (2°C to 10°C)
If the optional seawater low-limit adjustment sensor is connected to the control board H2O Out 2-pin
plug, set the system to switch from reverse-cycle heat to auxiliary electric heat (if an auxiliary electric
heater is installed and enabled).
• When the seawater temperature drops below 40°F (4°C) (default) and the reverse-cycle heat
has operated more than five minutes. Once the seawater rises 3°F above the seawater low-limit
adjustment sensor temperature set point, the system returns to reverse-cycle heating.
• If an auxiliary electric heater is not installed, the system will shut down and flash LSF when the
seawater drops below 40 °F (4.4 °C). Once the seawater rises 3 °F above the seawater low limit
temperature, the system automatically goes back into reverse-cycle heating and stops flashing LSF.
I
This setting is applicable to soware revision #C39 and newer.
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