Johnson Controls CCXL01, Engineering Manual

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TC-19001 iii
● 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 tube.
● If there is a source of electrical interference near the power source, install noise suppression equipment ( fi lter).
● 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 speci
fi ed temperature, use the unit
within the operation temperature boundary of 32 to 104°F (0 to 40°C).
● Read installation and appropriate user manuals for connection with peripheral devices.
If a warning window appears on the screen, 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, fi re or
explosion resulting in serious injury or death:
● If the remote sensors are not used with this controller, then do not install this controller…
▫ In a room where there is no thermostat.
▫ Where the unit is exposed to direct sunshine or direct light.
▫ Where the unit is in close proximity to a heat source.
▫ Where hot/cold air from the outdoors, or a draft from elsewhere (such as air vents, diffusers or grilles) can
affect air circulation.
▫ In areas with poor air circulation and ventilation.
● 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
fi ngers 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.
Electrical Precautions
Take the following precautions to reduce the risk of electric shock, fi re or
explosion resulting in serious injury or death:
● Only use electrical protection equipment and tools suited for this installation.
● Insulate the wired controller against moisture and temperature extremes.
● Use speci fi ed cables between units and the controller.
● 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.
● The polarity of the input terminals is important, so be sure to match the polarity when using contacts that have
polarity.
● 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.
● 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
fi ve minutes before turning off the main power switch to the indoor or
outdoor units. Otherwise, water leakage or electrical breakdown may result.
● Do not open the service cover or access panel to the indoor or outdoor units or controllers 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.