Control Features 

TRO5404 

• 4 analog outputs (2 heat / 2 cool) 
• 1 TPM output (time proportional modulation) 
• 2 sensor inputs Selectable internal or external temperature sensor 
• Selectable proportional control band 

 TRO54P3X1 

• 2 analog outputs (1 heat / 1 cool) 
• 3 digital outputs 
• 2 sensor inputs Selectable internal or external temperature sensor Independent, configurable proportional control band and dead band per ramp 
• Changeover by contact or external sensor 

Operational Features 

• 24Vac operation 
• Backlit LCD with simple icon and text driven menus 
• Selectable Fahrenheit or Celsius scale 
• "Night Set Back" mode with manual override 
• Multi level lockable access menu Lockable setpoint 

Applications 

• Single duct, cooling only 
• Single duct cooling and/or heating 
• Up to 3 stage reheat and/or cool 
• Up to 3 On/Off Heat and/or cool 
• Up to 1 time proportioned (TPM) heat or reheat 
• Up to 4 analog (0-10Vdc) Reheat and/or cool With or without auto changeover

Model	Description
SCC80	Change Over sensor