Honeywell T8665A Chronotherm IV Deluxe Programmable Wireless Thermostat INSTALLATION INSTRUCTIONS APPLICATION The T8665 Chronotherm IV Wireless Thermostat Module Refer to Table 1 for a general description of the provides electronic control of 24 Vac heating and cooling thermostat The T8665A Thermostats are battery systems It must be used with a W8665 Receiver powered Table 1 T8665A Thermostat Description T8665 System Changeover System Selection Fan
QQO Honeywell T8665A Chronotherm IV Wireless Thermostat USER S GUIDE 69 1536 3 2 69 1536 3 CONTENTS USING THIS GUIDE 5 FEATURES 6 KEYBOARD AND DISPLAY DESCRIPTION 7 Keyboard 7 Display 7 ADAPTIVE INTELLIGENT RECOVERY CONTROL 10 Optimum Comfort and Energy Savings 11 OPERATING YOUR THERMOSTAT 13 Setting System and Fan Keys 13 Setting the System Key 14 Setting th