Trane t605-2 Programmable Thermostat 5/1/1 Day

Product Description

The TRANE t605-2 is a 5/1/1 programmable thermostat designed for single-stage heat pump systems with one heating stage and one cooling stage. Operating on 24 volts or battery power, it gives HVAC technicians a straightforward, reliable control solution for residential applications. The push-button interface allows room temperature calibration adjustment and separate heating and cooling swing adjustments, giving technicians fine-grained control over system cycling. A built-in 5-minute compressor delay protection, selectable on or off, guards against short cycling. The thermostat mounts horizontally on a wall or standard junction box using a universal sub-base, and an easy-access battery compartment simplifies maintenance. A 5-year warranty backs the unit.

The t605-2 is suited for residential heat pump installations requiring simple single-stage control with programmable scheduling across a 5/1/1 day structure — five weekdays plus individual Saturday and Sunday programs. The operating temperature range spans 44 degrees F to 90 degrees F, making it appropriate for standard residential occupied spaces. Separate B/O terminals accommodate heat pump reversing valve wiring. HVAC technicians typically install this thermostat during new system commissioning or as a direct low-voltage thermostat replacement in existing heat pump applications.

Key Features

• 5/1/1 day programmable schedule for weekday, Saturday, and Sunday control
• Single-stage heat pump support with 1 heat and 1 cool stage
• Selectable 5-minute compressor delay protection to prevent short cycling
• Separate B/O terminals for heat pump reversing valve compatibility
• Dual power input: 24-volt hardwired or battery operation
• Room temperature calibration and independent heating and cooling swing adjustments
• 5-year manufacturer warranty

Compatibility

Designed as an OEM-style replacement for single-stage residential heat pump systems requiring a 24-volt programmable low-voltage thermostat with a universal sub-base footprint.

Installation Notes

Installation should be performed by a licensed HVAC technician. Power down the system at the disconnect and air handler before removing the existing thermostat or making any wiring connections. The universal sub-base mounts horizontally to a wall surface or a standard junction box. Verify reversing valve wiring polarity at the B/O terminals before restoring power, as incorrect configuration will cause the heat pump to operate in the wrong mode.