tekmar 521 Programmable Thermostat Installation - Manual (Page 3)

© 2014 521_D - 01/14
3 of 28 A Watts Water Technologies Company
To avoid serious personal injury and damage to the equipment:
Important Safety Information
It is your responsibility to ensure that this control is safely installed
according to all applicable codes and standards. tekmar is not responsible
for damages resulting from improper installation and/or maintenance.
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 •
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Disconnect all power before opening the control. •
It is the installers responsibility to ensure that this control is safely installed according
to all applicable codes and standards.
Improper installation and operation of this control could result in damage to the
equipment and possibly even personal injury or death.
This electronic control 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.
Do not attempt to service the control. There are no user serviceable parts inside
the control. Attempting to do so voids warranty. •
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