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Honeywell FocusPRO TH5000 Series Installation Guide
This manual provides step‑by‑step instructions for installing the Honeywell FocusPRO TH5000 series non‑programmable digital thermostats (models TH5110D, TH5220D, TH5320U). It includes safety warnings, wall‑plate mounting, wiring diagrams, and configuration of system‑type settings.
Additional sections cover system testing, temperature and electrical ratings, and a list of replacement parts and accessories. A Spanish version of the installation instructions is included at the end of the document.
Honeywell TH5110D specifications
| Physical dimensions (TH5320U/TH5220D) | 3‑9/16" H x 5‑13/16" W x 1‑1/2" D |
|---|---|
| Heat temperature range | 40°F to 90°F (4.5°C to 32°C) |
| Cool temperature range | 50°F to 99°F (10°C to 37°C) |
| Recommended thermostat wire gauge | 18‑ to 22‑gauge |
All Honeywell TH5110D documents by type
Mounting, wiring and first power-up. Read it before the hardware goes in.
Questions answered in these manuals
What wire gauge should be used for thermostat wiring?
Use 18‑ to 22‑gauge thermostat wire.
What are the temperature limits for heating operation?
Heating can be set between 40°F and 90°F (4.5°C to 32°C).
How can the TH5110D thermostat be powered?
It can be powered by batteries only (AAA alkaline), by a 24 Vac common wire only, or by a 24 Vac common wire with battery backup.
From: Honeywell TH5110D Non-programmable Thermostat Installation Guide
What should I do if the thermostat display is blank?
Check that the thermostat is receiving power—verify 24 Vac between Re and C and ensure fresh AAA alkaline batteries are installed.
From: Honeywell TH5110D Non-programmable Thermostat Installation Guide