Specifications

16
Unit Mode
The Unit Mode is used to configure the heat pump per its specific design configuration and
application. A unit mode may be selected from the following:
• Cooling Only
• Auxiliary Heating (Cooling Only + Aux Heat)
• Heat Pump
• Heat Pump with Aux Heat
• Heat Pump with Hot Gas Re-Heat
• Cooling Only with Hot Gas Re-Heat
Cooling Only
The unit is configured for mechanical cooling only and the reversing valve and plumbing are not
installed. Please consult with a factory engineer for specific application. Cooling only units are
typically applied in warm climates or for applications that involve 100% outside air.
Auxiliary Heating
The unit is configured for mechanical cooling with auxiliary electric heat. Electric heat is field-
installed; Binary Output 5 (BO-5) is available for this option on both the FHP-560 and FHP-583
controllers. It is important to note that for the FHP560/583 controllers, BO-5 cannot be used for
multiple options simultaneously (e.g. BO-5 and cannot be configured for both the On/Off Hot Gas
Re-Heat and Auxiliary Electric Heat options for the same unit). If an application requires multiple
options a different controller may be required. Please consult with a factory application engineer
regarding controller upgrades.
Heat Pump
The unit is configured for mechanical heating and cooling.
Heat Pump with Aux Heat
The unit is configured for mechanical heating and cooling with auxiliary electric heat.
Heat Pump with Hot Gas Re-Heat
The unit is configured for mechanical heating and cooling with active humidity control. Humidity
control consists of either On/Off Hot Gas Re-Heat (FHP-560) or Modulating Hot Gas Re-Heat
(FHP-583). Hot Gas Re-Heat must be ordered when the unit is being manufactured. Hot Gas