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P5415475
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If the wired controller is installed in a location where electromagnetic radiation is generated, make
sure that the wired controller is shielded and cables are sleeved inside conduit tubing.
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If there is a source of electrical interference near the power source, install noise suppression
equipment (filter).
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During the test run, check the unit’s operation temperature. If the unit is used in an environment
where the temperature exceeds the operation boundary, it may cause severe damage.
Check the operation temperature boundary in the manual. If there is no specified temperature, use
the unit within the operation temperature boundary of 35° to 104°F (0 to 40°C).
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Read installation and appropriate user manuals for connection with PC or peripheral devices.
If a warning window appears on the PC, the product stops, does not work properly or works
intermittently, immediately stop using the equipment.
Installation Precautions
Take the following precautions to reduce the risk of electric shock, fire or
explosion resulting in serious injury or death:
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If the remote sensors are not used with this controller, then do not install this controller…
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In a room where there is no thermostat.
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Where the unit is exposed to direct sunshine or direct light.
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Where the unit will be in close proximity to a heat source.
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Where hot/cold air from the outdoors, or a draft from elsewhere (such as air vents, diffusers or
grilles) can affect air circulation.
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In areas with poor air circulation and ventilation.
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Perform a test run using the controller to ensure normal operation. Safety guards, shields, barriers,
covers, and protective devices must be in place while the compressor/unit is operating.
During the test run, keep fingers and clothing away from any moving parts.
After installation work for the system has been completed, explain the “Safety Precautions,” use, and
maintenance of the unit to the customer according to the information in all manuals that accompanied the
system. All manuals and warranty information must be given to the user or left near the Indoor Unit.
Electrical Precautions
Take the following precautions to reduce the risk of electric shock, fire or
explosion resulting in serious injury or death:
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Only use electrical protection equipment and tools suited for this installation.
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Insulate the wired controller against moisture and temperature extremes.
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Use specified cables between units and the controller.
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Communication cabling shall be a minimum of 18-Gauge, 2-Conductor, Stranded Copper. Shielded
cable must be considered for applications and routing in areas of high EMI and other sources of
potentially excessive electrical noise to reduce the potential for communication errors. When shielded
cabling is applied, proper bonding and termination of the cable shield is required as per Johnson
Controls guidelines. Plenum and riser ratings for communication cables must be considered per
application and local code requirements.
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The polarity of the input terminals is important, so be sure to match the polarity when using contacts
that have polarity.
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Highly dangerous electrical voltages may be used in this system. Carefully refer to the wiring diagram and
these instructions when wiring. Improper connections and inadequate grounding can cause serious injury
or death.
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Before installing the controller or remote devices, ensure that the indoor and outdoor unit operation has
been stopped. Further, be sure to wait at least five minutes before turning off the main power switch to the
indoor or outdoor units. Otherwise, water leakage or electrical breakdown may result.
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Do not open the service cover or access panel to the indoor or outdoor units without turning OFF the main
power supply. Before connecting or servicing the controller or cables to indoor or outdoor units, open
and tag all disconnect switches. Never assume electrical power is disconnected. Check with a meter and
equipment.
