STN855W WiFi Digital Programmable Thermostat Instruction Manual
| General | Details |
|---|---|
| Name | STN855W WiFi Digital Programmable Thermostat Instruction Manual |
| Make | Thermostat |
| Language | English |
| Filetype | PDF (Download) |
| File size | 6.32 MB |
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STN855W Manual: Questions and Answers
How do I connect wires to the STN855W thermostat?
Loosen the terminal block screws, insert wires, then retighten them.
- Do not overtighten, as this can damage the terminal block and prevent correct installation or cause operation issues. Instruction Manual, p. 8
Can I use 14 gauge wire with the STN855W?
No. Use shielded or non-shielded 18-22 gauge thermostat wire only. Instruction Manual, p. 10
What's the process for entering installer settings on this thermostat?
Access the configuration menu and authenticate as a technician.
- Press MENU button.
- Press and hold TECHNICIAN SETUP button for 3 seconds.
- Configure installer options using the table provided.
- Press DONE key when finished to exit. Instruction Manual, p. 14
What does the Compressor Short Cycle Delay setting do on the STN855W?
Protects the compressor by preventing it from turning on for 5 minutes after it was last turned off. Select OFF to remove this delay. Instruction Manual, p. 15
What does the Cooling Swing setting control on the STN855W?
Controls the temperature differential at which cooling cycles. A 0.5° setting turns cooling on 0.5° above setpoint and off 0.5° below setpoint. Instruction Manual, p. 15
How often does the STN855W thermostat run its fan when programmed on?
Continuously throughout that time period to keep air circulated and eliminate hot and cold spots. Instruction Manual, p. 25
Why won't my STN855W switch from Auto Heat to Auto Cool mode?
The heat setpoint must be satisfied first. The thermostat won't allow switching until the current mode reaches its set-point. Instruction Manual, p. 25
How do I reset a reminder on the STN855W?
Press and hold the third button from the left for 3 seconds. For an expired reminder, this works without entering tech setup. Instruction Manual, p. 25
What temperature swing setting does the STN855W use for heating stages?
First stage turns on at 1x the swing setting below setpoint. Second stage turns on at 2x the swing setting below setpoint. Instruction Manual, p. 20
When does the second stage heating activate on this thermostat?
Second stage turns on when temperature drops to 2x the swing setting below the setpoint. It turns off once temperature reaches 1x the swing setting below setpoint. Instruction Manual, p. 20
