Honeywell ADEMCO 4500 Thermostat User Guide
| General | Details |
|---|---|
| Name | Honeywell ADEMCO 4500 Thermostat User Guide |
| Make | Honeywell |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.17 MB |











Honeywell ADEMCO 4500 Manual: Questions and Answers
What's the difference between HEAT and COOL mode on the Honeywell ADEMCO?
HEAT mode lowers temperature during ARMED AWAY. COOL mode raises temperature during ARMED AWAY to save on air conditioning costs.
| Mode | Function |
|---|---|
| HEAT | Set-back temperature must be lower than existing thermostat |
| COOL | Set-back temperature must be higher than existing thermostat |
What do the two switches do on the Honeywell ADEMCO 4500 front panel?
HEAT/COOL selects the control mode. ACTIVE/BYPASS activates the thermostat or disables temperature changes.
| Switch | Purpose |
|---|---|
| HEAT/COOL | Set control mode for heating or air conditioning |
| ACTIVE/BYPASS | Enable thermostat or prevent temperature adjustments |
What does ARMED AWAY mode mean on the Honeywell ADEMCO 4500?
When the security system enters ARMED AWAY mode, the 4500 thermostat activates its set-back function. In heating, it turns down temperature. In cooling, it raises temperature. User Guide, p. 3
Can I use the Honeywell ADEMCO 4500 while servicing my heating and cooling system?
Set the front panel ACTIVE/BYPASS switch to BYPASS. The 4500 thermostat will be totally removed from control, and your original thermostat will maintain full control of the heating and air conditioning systems. Restore the switch to ACTIVE when servicing is complete. User Guide, p. 14
How long is the warranty on the Honeywell ADEMCO 4500?
One year from the date of original purchase, covering defects in materials and workmanship under normal use and service. User Guide, p. 16
What should I do if my Honeywell ADEMCO 4500 needs repair?
Contact the security professional who installed and maintains your equipment, or contact Honeywell International Inc. at 165 Eileen Way, Syosset, NY 11791. User Guide, p. 16
Why is my heating or cooling not responding when the system is armed?
- Ensure the thermostat's front panel slide switch is set to ACTIVE mode
- Verify the ACTIVE LED is on and not flashing
- A flashing LED means a wiring problem exists
- A 'Check Thermostat' phone announcement signals a servicing need User Guide, p. 13
How often should I test the Honeywell ADEMCO 4500 heating and cooling system?
Test the system weekly and always before leaving for extended periods such as vacation. User Guide, p. 12
How do I set up the Honeywell ADEMCO 4500 thermostat switches before adjusting temperature by phone?
Set the ACTIVE/BYPASS switch to ACTIVE and the HEAT/COOL switch to your desired mode of operation. User Guide, p. 8
Where is the ACTIVE/BYPASS controls indicator on the Honeywell ADEMCO 4500?
It's a yellow LED indicator on the front panel that shows the thermostat status. User Guide, p. 6
How do I know if the Honeywell ADEMCO 4500 is active or in bypass mode?
The yellow LED indicator stays steadily on when ACTIVE and steadily off when in BYPASS. A flashing LED indicates a wiring problem. User Guide, p. 6




























