Installer Setup Options - Heat Pump or PTAC Settings

This does not show all the ISU settings available when Heat Pump or PTAC is selected. These categories are intended to display only the settings specific to those applications. Other settings—such as temperature limits, IAQ control (humidifier, dehumidifier, ventilator), etc.—will be shown for all system types.

ISU #

Heading

Question

Options

Contingent previous setting?

Notes

2000

System Type

System Type

  • Conventional Forced Air Heat

  • Heat Pump

  • Radiant Heat

  • None (Cool only)

 

It is important that this is set correctly. If you are unsure about what type of system you have contact an HVAC professional to assist.

Watch "Identify your heating and cooling system” video.
   

Equipment type

  • Hot water radiant heat

  • Steam

2000 set to Radiant Heat

This setting not shown for Heat Pump Applications.

Not seeing these settings? Refer to the note at the top of this chart.

2060

Reversing Valve

Reversing Valve

  • O (O/B on Cool) or

  • B (O/B on Heat)

2000 set to Heat Pump

System setup is critical. If you are unsure of this setting, trace the O/B wire from thermostat to the equipment to verify the configuration. If you are still uncertain, contact an HVAC professional to assist.

O/B wire goes to:

  • O at heat pump, ISU 2060 needs to be set to O (O/B on cool).

  • B at heat pump, ISU 2060 needs to be set to B (O/B on heat).
   

Compressor Stages

  • 1

  • 2

2000 set to Heat Pump

 
   

Backup Heat Stages

  • 0

  • 1

2000 set to Heat Pump

2180

Backup Heat

Backup Heat Type

  • Electric Heat Strips

  • Gas or Oil Furnace

  • Hot Water Fan Coil

  • Hot Water Radiant Heat

  • Other

  • I'm not sure

2000 set to Heat Pump and 2070 Backup Heat Stages set to 1.

The thermostat or app will display different options for this but only supports electric backup. If any other backup heat source is selected it will warn that the thermostat is not compatible and recommend the homeowner contact an HVAC pro to get a compatible model.

3260

Temperature

Control

Extended fan run time in cool

  • Off

  • 30 seconds

  • 60 seconds

  • 90 seconds

  • 2 minutes

  • 3 minutes

  • 4 minutes

  • 5 minutes

  • 6 minutes

  • 7 minutes

  • 8 minutes

  • 9 minutes

  • 10 minutes

  • 11 minutes

  • 12 minutes

  • 13 minutes

  • 14 minutes

  • 15 minutes

At least 1 cool stage

 

Extended fan run time in heat

At least 1 heat stage

 

4090

Temperature Control

Adaptive Intelligent Recovery

  • No

  • Yes

 

When scheduling is used, this feature turns on heat or cooling early to reach the comfort set point by the scheduled comfort time