Honeywell CHRONOTHERM IV T8665A - Using this Guide

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USING THIS GUIDE
The T8665A is a multi-functional thermostat. This means it can be used in single or multi-zone applications.
The following symbols will help you identify the features that apply to your system:
– Triple layer of thermostats with the word, zoning, below. These features are available when more
than one thermostat is used with the W8665E RF Zone
TM
Panel.
–Tip symbol. Look for helpful tips throughout the guide when you see this symbol.
80
90
70
60
90
80
70
60
ZONING