EMI WLHA, S1C manual Troubleshooting procedure, Power supply check

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Troubleshooting procedure Continued

Figure 1B

Figure 2 C

Not used

Figure 2 A

Figure 2 B

Power supply check

When trouble shooting any EMI prod- uct, it is important to first check the rating plate for proper field voltage and breaker size. Secondly using a voltmeter check the incoming power supply to see that it agrees with the rating plate. The incoming power should not exceed the nameplate voltage. Also, the incoming power should not be below the minimum voltage stated on the rating plate (197V for units rated 208/230V and 104V for units rated 115V).

A check for low voltage power should also be made. By placing a voltmeter across low volt terminals “R” and “C” at the indoor unit, there should be a reading of 24V.

Test Mode is available for unit mounted control configuration only. Use of test mode can aid in the functional check of the unit. It can also be a helpful tool when trouble shooting to solve a problem.

To enter test mode, while the unit is in off mode, press “On/Off”, “Prog” and “Time” buttons simultaneously for three seconds. To exit press again or remove power to the unit. While in test mode all timers are shortened.

WLCA/WLHA High Wall Evaporator

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Contents Installation, operation and maintenance Manual To the Installer Safety Instructions Controls and Components Day programmable with copy featureProduct Description Anti-Short Cycle Compressor Pro- tectionWLCA/WLHA Controls and Components Cabinet FeaturesInstaller Supplied Items Optional EquipmentWLCA/WLHA Mounting preparation WLCA/WLHA High Wall unit MountingMake sure power is off WLCA/WLHA High Wall Evaporator Installation InstructionsElectrical Wiring Site Preparation Locate Electrical WiringWiring must be at least 18 awg High Volt Electrical WiringLow Volt Interconnect wiring Units With or without heatStraight Cool Choosing a Remote Wall MountedHeat pump connection Remote thermostat Two-stage Heating Refrigerant Piping Piping Do’s and Don’tsPiston/Orifice Installation Instruction WLH24Manifold Setup For Evacuation Charge to proper weight, charge WLCA/WLHA High Wall Evaporator Quick Guide Configuration Mode User interface ButtonsControl User Interface instructions User interface Buttons Fan Operation Mode of operationOn/Off Louver operationHeat Mode Sequence of Operation Unit Mounted key pad modeCool Mode Optional Heat pump with Electric heat 2-stage heatingDry Mode Set Time ModeManual run Day Programming modePre-programmed run mode Filter CheckRoom Air Sampling Configuration Mode Min, 10 min, and 15 minSleep timer Sequence of Operation Wall mounted thermostat modeChoosing a Thermostat Cooling operation Electric heat operationLCD Back Light Other FeaturesShort Cycle Protection Asct Drain Pan SensorCondensate fault E02 Memory BackupRoom air sensor fault E01 ID coil sensor fault E03Optional Hand Held Controller programming Initial Start-upWLCA/WLHA Preperation for Start-Up Test Unit Performance Data sheet Test Unit Performance DataMaintenance and Troubleshooting procedure MaintenanceTroubleshooting EMI Air handlers with Unit Mount Infrared ControlsTroubleshooting procedure Power supply checkElectric Heat Low volt controlsCooling Only Units Optional Heat pump With Electric HeatUnits with Condensation Pumps Frequently asked questions Display on the indoor unit is blank What should I do?Troubleshooting procedure WLCA/WLHA Physical Dimensions Mounting Tubing Model Depth Height LengthSmall Cabinet 09/12 WLCA/WLHA High Wall Evaporator SpecificationsWLCA/WLHA Electrical Specifications Medium Cabinet 18/24Heat pumps System Options with Wall Units WLCA/WLHA System OptionsCooling Systems with Wall Units Cooling Systems with S2CA Side dischargeSystem Options with T2CA TOP discharge System Options with T3CA TOP dischargeALL Product Limited Warranty High Wall Evaporator EMI’s High Efficiency Product LineEvaporators Condensers

WLHA, S1C specifications

The EMI S1C, also known as the WLHA, is a cutting-edge electronic device renowned for its advanced features and robust technologies. This innovative equipment caters to a wide range of applications, from multimedia processing to advanced communications. Its design showcases a seamless blend of functionality and performance, making it a preferred choice among professionals in various fields.

One of the standout characteristics of the EMI S1C is its high-performance processing capability. Equipped with a powerful multi-core processor, the device ensures rapid data processing and multitasking without compromising efficiency. This feature is particularly beneficial for applications requiring real-time data analysis and complex computational tasks.

The WLHA further distinguishes itself through its exceptional connectivity options. It supports multiple input and output standards, including USB, HDMI, and Ethernet, facilitating seamless integration with other devices. This flexibility allows users to connect a variety of peripherals and streamline workflows, enhancing overall productivity.

In terms of user experience, the EMI S1C places a strong emphasis on intuitive interaction. It features a user-friendly interface that simplifies navigation and accessibility. The touchscreen display provides responsive feedback, enabling users to operate the device effortlessly, even in high-pressure scenarios.

Another prominent aspect of the EMI S1C is its advanced power management system. The device is designed to optimize energy consumption without sacrificing performance. This sustainability feature is not only environmentally friendly but also crucial for mobile applications, where battery life is a significant consideration.

Furthermore, the WLHA's robust build quality ensures durability and resilience in diverse environments. The device is constructed with high-grade materials that withstand wear and tear, making it ideal for use in industrial settings or field operations where ruggedness is essential.

Security is also at the forefront of the EMI S1C's design. The device incorporates advanced encryption technologies and secure boot mechanisms to protect sensitive data from unauthorized access. This commitment to security is particularly relevant in today's digital landscape, where data breaches and cyber threats are prevalent.

In summary, the EMI S1C, WLHA is a versatile and powerful electronic device that excels in various domains. Its combination of high-performance processing, extensive connectivity, user-friendly interface, energy efficiency, durability, and robust security features makes it a top choice for professionals seeking reliability and innovation in their tools. Whether in multimedia, telecommunications, or industrial applications, the WLHA is poised to meet the demands of modern technology users effectively.
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