EMI CAC manual Correct Incorrect, Condensate Piping

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CONDENSATE PIPING

The unit can now be piped up in accor- dance with good refrigeration and/or plumbing practices.

The Cassette is supplied with a 1/2” I.D. fl exible PVC hose for connection to copper or plastic drain pipework. When installing the Cassette the following points should be remembered:

1.Maximum pump lift is 36”.

2.The highest point in the condensate pipework should be as close to the unit as possible. This prevents a large volume of water draining back into the unit when it is switched off.

NOTE: There is a check valve at the pump discharge to prevent water from draining back into the unit. This piping technique will minimize any is- sues should the check valve become stuck open from airborne debris.

Duct collars: Branch duct and fresh air duct collars can be attached to the Cas- sette chassis by following the steps below:

Condensate Drain Connection

1.Locating the knock-out holes.

Branch Duct Knockout

Correct

Incorrect

3.Condensate pipework should slope downwards in the direction of water fl ow with a minimum gradient of (1” per 10’). There must not be any uphill gradients other than in the fi rst 36” of pipework from the Cassette.

4.When multiple Cassettes are connect- ed to a common condensate drain, ensure the drain is large enough to handle the volume of condensate from several Cassettes. It is also rec- ommended to have an air vent in the condensate pipe work to prevent any air locks.

Small Unit

Medium &

Large Units

Fresh Air

Knockout

Notes: The number of knock-outs var- ies depending on unit size.

•Branch duct knock-outs are 5¼” round

•Fresh air knock-outs are 1¼” x 2½” rectangular on 12k, and 3” square on 24-36k

Recommendation: No more then 10’ of branch duct or fresh air duct should be installed.

CAC Cassette Evaporator

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Contents Nominal Circuit Capacities INSTALLATION, Operation and Maintenance ManualTo the Installer Safety InstructionsCAC Cassette High Efficiency Evaporator Standard Features Product DescriptionSystem Options CAC Cassette Controls and Components Preparation for InstallationSmall Unit Shown Medium Unit ShownLarge Unit CAC Cassette Preparation and Positioning PISTON/ORIFICE Installation InstructionCeiling opening Mounting the CAC Cassette Ceiling EvaporatorMAX CAC Cassette Chassis Positioning and InstallationCondensate Piping Correct IncorrectPiping DO’S and DON’TS Pipe Installation Notes Refrigeration PipingUse of a larger line can harm Compressor Assembly Instructions CAC Cassette Evaporator Fascia Installation InstructionsCAC Cassette Evaporator Installation Instructions Electrical WiringMake sure power is off Low Volt Interconnect Wiring High Volt Electrical WiringStart -UP for Wall Thermostat Control LOW Voltage Interconnect WiringFigure #4 Refrigerant Processing Important Notes CAC Cassette Evaporator Test Unit Performance Data Test Unit Performance Data SheetMaintenance and Troubleshooting Procedure Power Supply Check Troubleshooting ProcedureLow Volt Controls Cooling Only UnitsElectric Heat How long will the fan run? Frequently Asked QuestionsCAC Performance Data Discharge AIR VolumeSmall Cabinet CAC 9,000 12,000 CAC Cassette DimensionsMedium Cabinet CAC 18,000 24,000 Large Cabinet CAC 30,000 36,000 CAC Cassette System Matches CAC Electrical SpecificationsT2C, T3C & T4C Top Discharge Enviromaster International LLC ALL Product Limited WarrantyHigh Wall Evaporator EMI’S High Efficiency Product LineS1C & S1H Single Zone S2C Dual Zone 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.
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