
2
AB-7057
Safety Precautions
Please read instructions carefully and use the product as
specied in this manual. Be sure to keep this manual near
by for ready reference.
Restrictions on Use
This product was developed, designed, and
manufactured for general air conditioning use.
Do not use the product in a situation where human life
may be at risk or for nuclear applications in radiation
controlled areas. If you wish to use the product in
a radiation controlled area, please contact Azbil
Corporation.
Particularly when the product is used in the following
applications where safety is required, implementation of
fail-safe design, redundant design, regular maintenance,
etc., should be considered in order to use the product
safely and reliably.
• Safety devices for protecting the human body
• Start/stop control devices for transportation machines
• Aeronautical/aerospace machines
For system design, application design, instructions
for use, or product applications, please contact Azbil
Corporation.
Azbil Corporation bears no responsibility for any result,
or lack of result, deriving from the customer's use of the
product.
Recommended Design Life
It is recommended that this product be used within the
recommended design life.
The recommended design life is the period during which
you can use the product safely and reliably based on the
design specications.
If the product is used beyond this period, its failure ratio
may increase due to time-related deterioration of parts,
etc.
The recommended design life during which the product
can operate reliably with the lowest failure ratio and least
deterioration over time is estimated scientically based
on acceleration tests, endurance tests, etc., taking into
consideration the operating environment, conditions, and
frequency of use as basic parameters.
The recommended design life of this product is 10 years.
The recommended design life assumes that
maintenance, such as replacement of the limited life
parts, is carried out properly.
Refer to the section on maintenance in this manual.
Warnings and Cautions
WARNING Alerts users that improper handling may
cause death or serious injury.
CAUTION Alerts users that improper handling may
cause minor injury or material loss.
Symbols
Notifies users that specific actions are prohibited
to prevent possible danger. The symbol inside
graphically indicates the prohibited action.
(For example, the sign on the left means that
disassembly is prohibited.)
Instructs users to carry out a specific obligatory
action to prevent possible danger. The symbol
inside graphically indicates the actual action to
be carried out. (For example, the sign on the left
indicates general instructions.)
WARNING
When handling or transporting any heavy product
(more than 18 kg), carefully move the product with
a hand truck or the like, or with 2 or more people.
Careless lifting or accidental dropping of the
product may result in injury or product damage.
CAUTION
Provide a circuit protector (e.g., a fuse or circuit
breaker) for the power source.
Failure to do so may cause a short circuit leading
to re or device failure.
Do not freeze this product.
Doing so may damage the valve body and cause
leakage.
When piping this product, be sure there is no
foreign matter in the pipes.
If foreign matter remains in the pipes, the product
may break down.
Install, wire, and use this product under the
conditions specied by this manual.
Failure to do so may cause re or device failure.
When installing this product, hold it in the proper
position and securely fasten it to the pipes.
Excessive tightening or improper installation
position may damage the valve.
After installation, make sure no uid leaks from the
valve-pipe connections.
Improper piping may cause uid leakage outside of
the valve.
Do not put a load or weight on this product.
Doing so may damage the product.
Installation and wiring of the actuator must
be performed by personnel qualified to do
instrumentation and electrical work.
Mistakes in installation or wiring may cause re or
electric shock.
Before wiring, setting, maintenance, or replacement,
be sure to turn o the power to this product.
Failure to do so may result in electric shock or
device failure.
All wiring must comply with applicable codes and
ordinances.
Otherwise there is a danger of re.