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69-1536–3
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.
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60
90
80
70
60
ZONING
Summary of Contents for CHRONOTHERM IV T8665A
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