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DOUBLE SETTING OF TEMPERATURE
NOTE: This function is only for Heat Recovery systems.
The indoor unit can conduct auto mode described as specified heating and cooling temperature.
• Variation range of the setting temperature in auto-mode:
Cooling: 62°F to 86°F
Heating: 54°F to 86°F
• The Cooling Setting temperature (TSc) should be set before the Heating Set temperature (TSh), and the difference between
TSc and TSh should satisfy the condition: ΔT2 = TSc – TSh ≥ 0°F.
• If ΔT2 ≥ 3°F, ΔT1 = ΔT3 = 1°F
• If 0°F ≤ ΔT2 < 3°F
• ΔT1 = 1°F and ΔT3 = 3°F while the indoor unit is in cooling mode, including cooling thermal-off or fan
• ΔT1 = 3°F and ΔT3 = 1°F while the indoor unit is in heating mode, including heating thermal-off
• The wired controller setting temperature is used to calculate the capacity requirement in Auto mode.
• Temperature display in auto mode:
• While the indoor unit mode is changed from cooling/heating mode to auto mode, the double setting temperature (cooling
and heating) of auto mode is displayed on the controller.
• While the indoor unit mode is changed from auto mode to cooling/heating mode, the double setting temperature TSc or TSh
will be displayed on the controller for cooling or heating operation.
• The factory double setting temperature for Heat Recovery systems is 75.2°F for cooling and 69.8 °F for heating.
• The indoor unit changes its operation mode immediately the first time, but it needs a time interval* from the second time of
operation mode change.
*15/30/60/90 minutes available from the remote controller.
SVD Control (Only Valid for Outside Air)
When the outdoor unit is operating as heating only or simultaneously cooling and heating (cooling main or heating main
operation), and the outside air unit is without the heating capacity requirement (Stop, Heating thermo-off, or Fan in heating
control), then SVD will be opened. Otherwise, it stays closed.
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