Friedrich 2008, 2009 service manual Reversing Valve DESCRIPTION/OPERATION, Electric Shock Hazard

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REVERSING VALVE DESCRIPTION/OPERATION

WARNING

ELECTRIC SHOCK HAZARD

Disconnect power to the unit before servicing. Failure to follow this warning could result in serious injury or death.

The Reversing Valve controls the direction of refrigerant flow to the indoor and outdoor coils. It consists of a pressure-operated, main valve and a pilot valve actuated by a solenoid plunger. The solenoid is energized during the heating cycle only. The reversing valves used in the RAC system is a 2-position, 4-way valve.

The single tube on one side of the main valve body is the high-pressure inlet to the valve from the compressor. The center tube on the opposite side is connected to the low pressure (suction) side of the system. The other two are connected to the indoor and outdoor coils. Small capillary tubes connect each end of the main valve cylinder to the

“A” and “B” ports of the pilot valve.Athird capillary is a common return line from these ports to the suction tube on the main valve body. Four-way reversing valves also have a capillary tube from the compressor discharge tube to the pilot valve.

The piston assembly in the main valve can only be shifted by the pressure differential between the high and low sides of the system. The pilot section of the valve opens and closes ports for the small capillary tubes to the main valve to cause it to shift.

NOTE: System operating pressures must be near normal before valve can shift.

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Contents WallMaster Thru-the-Wall Technical Support Contact Information Table Of Contents Important Safety Information Your safety and the safety of others are very importantRefrigeration System Hazards Introduction Property Damage Hazards3rd & 4th Digits Approximate BTU/HR Cooling 1st Digit Function2nd Digit Type 5th Digit Alphabetical Modifier 6th Digit Voltage2008 / 2009 Performance Data Electric Shock Hazard Fire HazardFunctional Components How to operate the Friedrich WallMaster To set the timer Using the remote control Checking Room Temperature Error Code ModeTesting the Electronic Control Activating Test ModeReboot the Control Panel Error Codes Listing for WS ModelsError Codes Listing for WE/WY Models E7 Motor Operation E9 Heat Pump FailureFor Units with Rotary Controls System Control Switch System Control Switch TestThermostat Components TestingElectronic Control Operation Defrost Bulb Location CapacitorsDefrost Thermostat Capacitor Check with Capacitor AnalyzerHeating Element Drain PAN ValveRefrigeration System Sequence of Operation Equipment Must be Capable Sealed Refrigeration System RepairsEquipment Required Risk of Electric ShockFreeze Hazard Method Of Charging / RepairsBurn Hazard Undercharged Refrigerant Systems Overcharged Refrigerant SystemsRestricted Refrigerant System Check Valve Hermetic Components CheckMetering Device Capillary Tube SystemsReversing Valve DESCRIPTION/OPERATION Testing the Coil Checking the Reversing ValveExplosion Hazard Procedure For Changing Reversing ValveTouch Test in Heating/Cooling Cycle Compressor Checks Checking Compressor Efficiency Single Phase Resistance TestGround Test High Temperatures Compressor ReplacementRecommended procedure for compressor replacement Rotary Compressor Special Troubleshooting and Service Blower Wheel / Housing / Condenser FAN / Shroud Routine MaintenanceCoils and Base PAN Excessive Weight Hazard AIR FilterSleeve / Drain Front CoverCooling only Room AIR Conditioners Troubleshooting Tips Replace fuse, reset breaker. If repeats, check Fused separately Oversized unit Operate in MoneySaver position Heat Pump Troubleshooting Heat Pump Troubleshooting Normal Function of Valve Malfunction of ValveWS14B10A-E WS10B30A-D WS13B30B-E,B-F WS16B30A-D,A-E WE10B33C-A WE13B33C-A WE16B33C-A WY10B33C-A WY13B33C-A WE10B33A-C WE13B33B-D,B-E WE16B33A-C,A-D WY10B33A-C,A-D WY13B33A-C,A-D Installation Accessories Description QTY Mounting Hardware ProvidedWall Preparation Installation Requirements MECHANICALCUT/SEVER HahazardMECHANICALCUT/SEVER Hazard Sealing Gasket Installation Instructions Installation Instructions for Internal Drain KIT IDK Mechanical Hazard MECHANICALCUT/SEVER HazardExcessive Weight Hazard MECHANICALCUT/SEVER Hazard MECHANICALCUT/SEVER Hazard MECHANICALCUT/SEVER Hazard First Year Second Through Fifth YearPage Technical Support Contact Information Friedrich AIR Conditioning CO
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2009, 2008 specifications

Friedrich 2008 and 2009 represent significant advancements in heating and cooling technology, particularly in the realm of air conditioning systems. Friedrich is known for producing robust and efficient HVAC solutions tailored for both residential and commercial applications. These models are particularly noteworthy for their innovative features and energy-efficient technologies that enhance user comfort and lower operational costs.

One of the main characteristics of the Friedrich 2008 and 2009 models is their emphasis on energy efficiency. Both units are designed to meet or exceed Energy Star standards, which indicates that they use less energy compared to standard models, contributing to greener living solutions. The incorporation of efficient compressors and high SEER (Seasonal Energy Efficiency Ratio) ratings ensures that users save money on their electricity bills while enjoying optimal cooling performance.

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Friedrich 2008 and 2009 also provide users with enhanced control options. The inclusion of smart technology and Wi-Fi connectivity allows for remote monitoring and temperature adjustments via smartphones or tablets. Users can create schedules, set temperature preferences, and receive maintenance alerts, contributing to a more user-friendly experience.

Moreover, these models are designed with robust construction, featuring durable materials that withstand various weather conditions. Their compact footprint and sleek design make them suitable for window installation, while an array of sizes accommodates spaces of different dimensions.

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In summary, Friedrich 2008 and 2009 models stand out for their energy efficiency, innovative inverter technology, smart controls, and robust construction. With a focus on user comfort and environmental responsibility, these models provide reliable solutions for effective heating and cooling in diverse applications.
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