VisionPro Redlink - Aux Heat Settings

Honeywell Redlink VisionPro: TH8320R, TH8321R

Re: Heat Pump Aux Heat Settings

The New VisionPro thermostat allows a technician to adjust how the Auxiliary Heat cycles when configured for a Heat Pump.

CONFIGURE THERMOSTAT

1. ENTER "INSTALLER SETUP"

• From the Home Screen, press the "MENU" tab.
• Scroll down to highlight "Installer Options" and press "Select".
• Enter the Factory Password and press "Done".
• Highlight "Installer Setup" and press "Select".

2. CHANGE BACKUP HEAT SETTINGS

• Press "Next" to get to Setup# 301 - "CONTROL OPTIONS"
  • Use the "Up" or "Down" arrow to change to "Advanced Options"
• Press "Next" to get to Setup# 309 - "BACKUP HEAT DROOP"
  • Use the "Up" or "Down" arrows to adjust setting.
    • Default Setting = "Comfort"
    • Recommended Setting = 2.0
• Press "Next" to get to Setup# 311 - "UPSTAGE TIMER FOR BACKUP HEAT"
  • Use the "Up" or "Down" arrows to adjust setting.
    • Recommended Setting = "Off"

Once changes have been made, press "Done".

• Answer "Yes" to the question, "Do you want to exit installer Setup?".
• Answer "Yes" to the question, "Do you want to save changes?".
• Press "HOME" to return to the Home Screen.

Backup Heat Droop

A Backup Heat Droop is available for any system with 2 heating types. For example:

• Heat Pumps with any type of Backup Heat 
• Radiant Heat with any type of Backup Heat 
• Hot Water Fan Coil with any type of Backup Heat

The options are: 

• Comfort – keeps temperature within 1 degree of the setpoint. 
• 2 to 15 °F – Backup heat is not used unless the indoor temperature drops to the selected Backup Heat Droop.

For example, if the Backup Heat Droop is set to 2 °F (1.0 °C), the indoor temperature must be 2 °F (1.0 °C) away from the setpoint before the backup heat turns on.

The Backup Heat Droop restricts backup heat during the following conditions:

• Normal Operation
• Manual Setpoint Changes

Backup Heat Upstage Timer

The Backup Heat Upstage Timer is available for any system with 2 heating types and the Backup Heat Droop is set to 2 °F (1.0 °C) or higher.

Backup Heat Upstage Timer options are Off, 30 minutes to 16 hours. Default is Off.

Backup heat is not used unless the indoor temperature drops to the Backup Heat Droop setting or the Backup Heat Upstage Timer expires, whichever occurs first.

The upstage timer starts when the highest stage of the previous equipment type turns on.