TROUBLESHOOTING SECTION

CONDENSATE PUMP BLOCKED OR FAILED. See sec-

tion “Water Leaking From Unit”

COIL FREEZE UP. A coil freeze condition may have caused excessive condensate to collect in the drip tray. See sec- tion “Freeze Protection.”

COIL FREEZE

POSSIBLE CAUSES/REMEDIES

COOLING COIL FREEZE PROTECTION THERMOSTAT TRIPPED (AUTO-RESET WHEN FREEZE CLEARED). Freeze stat is normally closed, opens during freeze. Where fitted, the stat will disable cooling action (sometimes the entire system) during coil freeze conditions. Use the unit’s wiring schematic to investigate.

CONDENSING UNIT RUNNING WITH CASSETTE UNIT SWITCHED OFF (DX SYSTEMS ONLY). System installed such that it is possible for condensing unit to run with Cas- sette unit switched off. Check system wiring and discon- nect switches.

DIRTY OR BLOCKED AIR FILTER. Clean/replace filters as necessary. (See maintenance instructions for more informa- tion).

SYSTEM HEAD PRESSURE SET TOO LOW. Check con- densing pressure, installation of low ambient kit may be re- quired.

LOSS OF REFRIGERANT. Check system for refrigerant leaks and repair before recharging.

NO COOLING

POSSIBLE CAUSES/REMEDIES

INCORRECT MODE SETTING (MICRO UNITS ONLY). Check that the transmitter MODE is set to Cooling or Auto Mode.

SET POINT TOO HIGH. Check the set point on the trans- mitter or wall mounted thermostat and adjust if necessary.

COMPRESSOR PROTECTION DELAY (MICRO UNITS ONLY). Check that the green On/Off LED is not flashing. If it is flashing, wait for ten minutes then recheck if cooling is operating (Applies to chilled water units also).

COMPRESSOR PROTECTION DELAY (ELECTRO-ME- CHANICAL DX UNITS ONLY). Wait for ten minutes and then recheck if cooling is operating.

DIRTY OR BLOCKED AIR FILTER. See section “Coil Freeze.”

HIGH CONDENSATE LEVEL TRIP. Drain the condensate tray and investigate. See section “Condensate high Level/” erating pressures. Check filter condition. (See maintenance instructions for more information).

SENSOR FAILURE (MICRO UNITS ONLY). If any of the sensors are faulty the microprocessor will disable the cool- ing operation.

OUTDOOR UNIT TRIPPED. Check outdoor unit. refer to outdoor unit troubleshooting section.

FAULTY VALVE ACTUATOR (CHILLED WATER UNITS ONLY). Check cooling signal present at actuator. Check actuator by manually opening the valve. Replace actuator if necessary.

NO HEATING (HEAT PUMP)

POSSIBLE CAUSES/REMEDIES

INCORRECT MODE SETTING (MICRO UNITS ONLY). Check that the transmitter MODE is set to Heat or Auto Mode.

JUMPER LINK SETTINGS INCORRECT (MICRO UNITS ONLY). Check that JMP2 jumper link header on the micro- processor is in the “ON” position. Remove power before making changes.

SET POINT TOO LOW. Check the set point on the trans- mitter or wall mounted thermostat and adjust if necessary.

DEFROST MODE. Unit is defrosting the outdoor coil. Heat- ing will continue automatically after defrosting.

COMPRESSOR PROTECTION DELAY (MICRO UNITS ONLY). Check that the green On/Off Led is not flashing. If it is flashing wait for a maximum of 10 minutes then re-check if heating is operating.

COMPRESSOR PROTECTION DELAY (ELECTRO-ME- CHANICAL DX UNITS ONLY). Wait for ten minutes and then re-check if cooling is operating

OUTDOOR UNIT TRIPPED – Refer to outdoor unit trouble- shooting section.

INDOOR COIL TEMPERATURE TOO HIGH (MICRO UNITS ONLY) – Check refrigerant charge by measuring operating pressures. Check filter condition (See maintenance instruc- tions for more information).

ENVIROMASTER INTERNATIONAL LLC

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EMI@ENVIROMASTER.COM

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EMI WLCA installation manual Coil Freeze, No Cooling, No Heating Heat Pump

WLCA specifications

EMI WLCA, or Electromagnetic Interference Wireless Lightning Control Architecture, represents a groundbreaking evolution in the realm of electromagnetic interference mitigation technologies. Designed to safeguard sensitive electronic systems from the potentially detrimental effects of electromagnetic disturbances, EMI WLCA integrates a host of advanced features and characteristics that empower both industries and consumers.

One of the primary features of EMI WLCA is its ability to operate across various frequencies. This versatility ensures that it can mitigate interference from a wide range of sources, whether they originate from industrial machinery, communication devices, or environmental factors. By effectively filtering out these unwanted signals, the technology facilitates more stable and reliable performance in electronic systems.

At the heart of EMI WLCA lie several state-of-the-art technologies that enhance its efficiency. Adaptive filtering is a key component, allowing the system to dynamically adjust its response based on the detected interference levels. This real-time adjustment capability ensures optimal performance, minimizing lag and improving responsiveness in critical applications, such as aviation, telecommunications, and medical devices.

Another notable characteristic of EMI WLCA is its modular design. This allows for easy integration into existing systems, enabling manufacturers to incorporate the technology without necessitating an overhaul of their current infrastructure. The modularity also facilitates future upgrades, ensuring that systems can adapt to changing standards and emerging interferences.

In addition to its impressive technical specifications, EMI WLCA is designed with user-friendliness in mind. Comprehensive monitoring tools provide users with insightful data on interference levels and the effectiveness of the mitigation strategies being employed. This transparency not only aids in troubleshooting but also enhances overall system performance by allowing users to make informed adjustments as needed.

Moreover, EMI WLCA is built to meet stringent regulatory compliance standards. This ensures its broad applicability across various sectors, including aerospace, automotive, and consumer electronics. As technology continues to advance, the RF environment becomes increasingly crowded, making solutions like EMI WLCA not only desirable but essential.

In conclusion, EMI WLCA stands out as a significant advancement in electromagnetic interference control technology. With its adaptive filtering capabilities, modular design, user-friendly monitoring tools, and compliance with industry regulations, EMI WLCA promises to enhance the reliability and performance of electronic systems across diverse applications. As the demand for interference-resistant technology grows, innovations like EMI WLCA will undoubtedly play a critical role in shaping the future of electronic design and implementation.