EMI manual CAC Cassette High Efficiency Evaporator, To the Installer, Safety Instructions

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CAC CASSETTE HIGH EFFICIENCY EVAPORATOR

INSTALLATION, OPERATION AND MAINTENANCE MANUAL

P/N 240006022, Rev. 1.1 [08/06]

This manual is intended as an aid to a qualified service personnel for proper installation, operation, and maintenance of EMI AmericaSeries high efficiency evaporators. Carefully read these instructions before attempting installation or operation. Failure to follow these instructions may result in improper installation, operation, service, or maintenance, possibly resulting in fire, electrical shock, property damage, personal injury, or death.

Shipping Damage MUST be Report- ed to the Carrier IMMEDIATELY!!!

Examine the exterior. Remove cover and examine compressor and piping for signs of damage.

TO THE INSTALLER

EMI AmericaSeries Unit are Certified

for R-22 Refrigerant ONLY.

(1)Retain this manual and warranty for future reference.

(2)Before leaving the premises, review this manual to be sure the unit has been installed correctly and run the unit for one complete cycle to make sure it functions properly.

To obtain technical service or warranty assistance during or after the installation of this unit, check our website @ www. enviromaster.com or call your installing contractor or distributor. Our technical service department may be contacted at 1-800-228-9364.

When calling for assistance, please have the following information ready:

Model Number___________________

Serial Number___________________

Date of installation________________

DANGER

Tampering with the EMI America- Series condensing unit is danger- ous and may result in serious injury or death. Tampering voids all war- ranties. Do not attempt to modify or change this unit in any way.

SAFETY INSTRUCTIONS

This unit has been designed and manu- factured to meet international safety standards.

Read all instructions before installing or using the EMI AmericaSeries high efficiency evaporator. Locate and in- stall this unit only in accordance with these instructions. Use this unit only for its intended purpose as described in this manual. Care must be taken to obtain the best results.

Check the rating plate on the EMI AmericaSeries evaporator before installation to make certain the Volt- age shown is the same as the electric supply to the unit.

The EMI AmericaSeries evaporator must be connected only to a properly grounded electrical supply. Do not fail to properly ground this unit.

Turn off the electrical supply before servicing the EMI AmericaSeries evaporator. Ensure that there is no power to any part of the equipment and both the indoor and outdoor units are switched off.

Do not use the EMI AmericaSeries evaporators if it has damaged wiring, is not working properly, or has been damaged or dropped.

[Save These Instructions]

WARNING

Ensure there are no power feeds to the unit such as fire alarm circuits, BMS circuits, etc.

CAC Cassette Evaporator

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www.enviromaster.com

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Contents INSTALLATION, Operation and Maintenance Manual Nominal Circuit CapacitiesCAC Cassette High Efficiency Evaporator To the InstallerSafety Instructions System Options Standard FeaturesProduct Description Preparation for Installation CAC Cassette Controls and ComponentsLarge Unit Small Unit ShownMedium Unit Shown PISTON/ORIFICE Installation Instruction CAC Cassette Preparation and PositioningMounting the CAC Cassette Ceiling Evaporator Ceiling openingCAC Cassette Chassis Positioning and Installation MAXCorrect Incorrect Condensate PipingUse of a larger line can harm Compressor Piping DO’S and DON’TS Pipe Installation NotesRefrigeration Piping CAC Cassette Evaporator Fascia Installation Instructions Assembly InstructionsMake sure power is off CAC Cassette Evaporator Installation InstructionsElectrical Wiring High Volt Electrical Wiring Low Volt Interconnect WiringLOW Voltage Interconnect Wiring Start -UP for Wall Thermostat ControlFigure #4 Refrigerant Processing Important Notes CAC Cassette Evaporator Test Unit Performance Data Sheet Test Unit Performance DataMaintenance and Troubleshooting Procedure Troubleshooting Procedure Power Supply CheckElectric Heat Low Volt ControlsCooling Only Units Frequently Asked Questions How long will the fan run?Discharge AIR Volume CAC Performance DataCAC Cassette Dimensions Small Cabinet CAC 9,000 12,000Medium Cabinet CAC 18,000 24,000 Large Cabinet CAC 30,000 36,000 CAC Electrical Specifications CAC Cassette System MatchesT2C, T3C & T4C Top Discharge ALL Product Limited Warranty Enviromaster International LLCS1C & S1H Single Zone S2C Dual Zone EMI’S High Efficiency Product LineHigh Wall Evaporator T2C, T3C & T4C 2, 3 & 4 Zone Top Discharge

CAC specifications

EMI CAC, or Electromagnetic Interference Common-mode Current, is a critical concern in electronic device design and operation. It refers to the unwanted electromagnetic energy that can disrupt the normal functioning of electronic circuits, particularly in complex systems. EMI can arise from various sources, including power lines, radio frequency transmitters, and even other components within the same device.

One of the main features of EMI CAC is its dual nature. It can be both a source of interference and a metric to assess the integrity of electronic systems. The impacts of EMI are far-reaching, affecting communication signals, power supply reliability, and overall device performance. As technology progresses and devices become more compact, the likelihood of EMI issues increases, making it essential for engineers to develop effective solutions.

Several technologies are employed to mitigate EMI CAC in electronic systems. Shielding is one of the most common methods, involving the use of conductive materials to block electromagnetic fields. This can take the form of metal enclosures or coatings that prevent the escape of emissions. Another strategy involves the use of filters, such as ferrite beads and capacitors, which can suppress common-mode currents before they enter the sensitive parts of a circuit.

The characteristics of EMI CAC vary depending on several factors, including frequency, amplitude, and the specific environment in which the electronic devices operate. High-frequency EMI is particularly challenging due to its ability to penetrate enclosures and disrupt signals. Additionally, common-mode noise can often appear in differential signals, exacerbating the situation and making detection more difficult.

Achieving EMC (Electromagnetic Compatibility) is a major goal for designers dealing with EMI CAC. This involves not only reducing emissions from devices but also improving their immunity to external sources of interference. Effective grounding techniques and careful layout planning are crucial in minimizing EMI effects.

In summary, EMI CAC represents a significant challenge in modern electronics, with a need for advanced solutions to ensure device performance and reliability. By understanding its features, employing effective technologies for mitigation, and addressing its characteristics, engineers can create robust designs that thrive in the increasingly complex electromagnetic landscape of today’s technological world.