Emerson 1HDEZ-1521 installation instructions Index

FAILURETO READAND FOLLOWALL INSTRUCTIONSCAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.

!CAUTION

To prevent electrical shock and/or equipment damage, disconnect electric power to system at main fuse or circuit breaker box until installation is complete.

!WARNING

Thermostat installation and all components of the control system shall conform to Class II circuits per the NEC code.

ATTENTION: MERCURY NOTICE

This product does not contain mercury. However, this product may replace a product that contains mercury.

Mercury and products containing mercury must not be discarded in household trash. Do not touch any spilled mercury.Wearing non-absorbent gloves, clean up any spilled mercury and place in a sealed container. For proper disposal of a product containing mercury or a sealed container of spilled mercury, place it in a suitable shipping container. Refer to www. thermostat-recycle.orgfor location to send product containing mercury.

Index	Page
Applications and Specifications	3
Installation	4
Advanced Installer Menu	12
Main Menu	20
Troubleshooting	26

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