Tempstar PTAC Thermostat for TEB15R34DCA — Low-Temp Protection | Ships Today

Overview

This OEM thermostat assembly for the Tempstar TEB15R34DCA PTAC includes the main PTAC thermostat (Part No. 1058517), the low-temperature protection thermostat (Part No. 1059022), and the control knob (Part No. 1058437). The main thermostat cycles cooling and heating to hold the room setpoint, while the low-temp thermostat protects the system by sensing freeze conditions and interrupting operation to prevent coil icing or compressor damage. A failure in either thermostat causes erratic cycling, lost freeze protection, or a unit that ignores its setpoint. This OEM kit restores both comfort control and low-temperature safety.

Specifications

Compatibility

Designed for the Tempstar TEB15R34DCA PTAC and related ICP/Heil/Tempstar units specifying thermostat 1058517, low-temp thermostat 1059022, and knob 1058437. Verify part numbers against your unit before ordering.

Installation Guide

1. Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter.
2. Access — Remove the PTAC front cover to reach the control panel.
3. Document — Photograph all thermostat and low-temp sensor wiring before disconnecting.
4. Remove — Pull the knob, disconnect both thermostats, and note the low-temp sensor's mounting location on the coil.
5. Install — Mount the new thermostats, reposition the low-temp sensor exactly as found, reconnect per your photo, and press on the new knob.
6. Test — Restore power and verify normal cycling plus low-temp cutout under cold-coil conditions.

Signs You Need a Replacement

• Coil ices up because freeze protection no longer trips.
• Unit ignores the dial or short-cycles repeatedly.
• Knob spins freely without turning the thermostat.
• No heating or cooling output with power present.

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.