tekmar 557 Thermostat Installation - Manual (Page 3)

© 2014 557_D - 09/14
3 of 52 A Watts Water Technologies Company
It is your responsibility to ensure that this thermostat is safely installed according to all
applicable codes and standards. tekmar is not responsible for damages resulting from
improper installation and/or maintenance.
Important Safety Information
This is a safety-alert symbol. The safety alert symbol is shown alone
or used with a signal word (DANGER, WARNING, or CAUTION), a
pictorial and/or a safety message to identify hazards.
When you see this symbol alone or with a signal word on your
equipment or in this Manual, be alert to the potential for death or
serious personal injury.
This pictorial alerts you to electricity, electrocution, and shock hazards.
This symbol identifies hazards which, if not avoided, could result in
death or serious injury.
This symbol identifies hazards which, if not avoided, could result in
minor or moderate injury.
This symbol identifies practices, actions, or failure to act which could
result in property damage or damage to the equipment.
Read Manual and all product labels BEFORE using the
equipment. Do not use unless you know the safe and proper
operation of this equipment. Keep this Manual available
for easy access by all users. Replacement Manuals are
available at tekmarControls.com
It is the installers responsibility to ensure that this thermostat is safely installed
according to all applicable codes and standards.
Improper installation and operation of this thermostat could result in damage to the
equipment and possibly even personal injury or death.
This thermostat is not intended for use as a primary limit control. Other controls that
are intended and certified as safety limits must be placed into the control circuit. •
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Do not attempt to service the thermostat. There are no user serviceable parts inside
the thermostat. Attempting to do so voids warranty.