Caleffi solar NAS20053, Installation, Commissioning And Servicing Instructions

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WARNING
Improper installation, adjustment, alteration,
service or maintenance can cause serious
injury or property damage. Refer to this
manual. For assistance or additional
information, consult a qualified installer or
service agency.
CAUTION
The recommended temperature for normal
residential use is 120°F. The dial on the
aquastat does not always reflect the out
coming water temperature, which could
occasionally exceed 120°F. The variation in
out coming temperature could be based on
factors including but not limited to usage
patterns and type of installation. Test your
water at the tap nearest to the water heater.
WARNING
Hotter water increases the risk of scald
injury.
Before adjusting the water
temperature setting, read this instruction
manual. Temperatures at which injury
occurs vary with the person’s age and the
length of exposure.
The slower reaction time of children, elderly,
and physically or mentally challenged
persons increases the scalding hazard to
them. It is recommended that lower water
temperatures be used where these
exposure hazards exist.
Such
households may require a
temperature setting less than 120°F to
prevent accidental contact with hot water.
To lower water temperature use point-of-
use temperature limiting devices.
WARNING
Water heater blankets are not
recommended and will void the warranty.
THIS MANUAL HAS BEEN PREPARED
TO ACQUAINT YOU WITH THE
INSTALLATION, OPERATION, AND
MAINTENANCE OF
YOUR WATER HEATER AND TO
PROVIDE IMPORTANT SAFETY
INFORMATION.
INSTALLER RESPONSIBILITIES
Please read all instructions thoroughly
before installing or placing the heater into
service.
This unit must be installed by licensed or
authorized installers, or technical personnel
that service water heating equipment. The
heater must be installed in accordance with
all local codes and ordinances.
These instructions are a guide for the
correct installation of the water heater. The
manufacturer will not be liable for damages
caused by failure to comply with the
installation and operating instructions
outlined on the following pages.
CAUTION
The recommended water temperature
setting for normal residential use is
120°F/49°C.
HANDLING
Before uncrating, check for shipping
damage. Report any damage to your
carrier. Note damage on bill of lading or
delivery receipt and file a claim.
FAILURE TO FOLLOW THESE
INSTRUCTIONS OR ALL APPLICABLE
BUILDING CODES AND REGULATIONS
VOIDS THE WARRANTY ON THIS
WATER HEATER.
Read all instructions thoroughly before
attempting installation or operation of your
water heater. Keep these instructions for
future reference.
Local plumbing and electrical codes must
be followed in the installation of this water
heater. In the absence of a local code use
the UNIFORM PLUMBING CODE and the
NFPA Code. Local codes may supersede
instructions in this installation manual.
These instructions are a guide for the
correct installation of the water heater. The
manufacturer will not be liable for damages
caused by failure to comply with the
installation and operating instructions
outlined on the following pages.
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WARNING: This product can expose you to chemicals including lead, which is
known to the State of California to cause cancer and birth defects or other
reproductive harm. For more information go to www.P65Warnings.ca.gov.