Honeywell RTH6300B Programmable Thermostat Installation Guide

Honeywell RTH6300B Manual: Questions and Answers

What comes in the Honeywell RTH6300B box?

RTH6300B thermostat with wallplate, operating manual, quick reference card, caution card, wire labels, and two wall anchors with mounting screws. Installation Guide, p. 5

Should I use wire color to connect the Honeywell RTH6300B?

No. Use wire labels instead, not wire color. Installation Guide, p. 4

How do I fix the Honeywell RTH6300B if heating and cooling run simultaneously?

Verify Function 1: System Type matches your equipment. Detach the thermostat from the wallplate and confirm bare wires aren't touching.

1. Check Function 1: System Type to ensure it matches your heating and cooling equipment (page 17).
2. Grasp and pull the thermostat away from the wallplate.
3. Inspect bare wires to confirm they are not touching each other (page 12). Installation Guide, p. 26

What's the difference between checking Function 1 and Function 2 on the Honeywell RTH6300B?

Function 1 ensures System Type matches your equipment. Function 2 configures the heat pump changeover valve for your setup.

Installation Guide, p. 26

What do the display symbols mean on the Honeywell RTH6300B?

Installation Guide, p. 25

Can I display temperatures in Celsius on the Honeywell RTH6300B?

Yes. Press the or button in Function 14 to select Celsius (°C) or Fahrenheit (°F) display, then press DONE. Installation Guide, p. 23

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