Friedrich 2009, 2008 service manual Heat Pump, System Cools When Heating is Desired, Yes

Page 49

TROUBLESHOOTING CHART — HEATPUMP

REFRIGERANT SYSTEM DIAGNOSIS - HEATING CYCLE

LOW SUCTION PRESSURE HIGH SUCTION PRESSURE

 

 

 

 

 

Low Airflow

 

Outdoor Ambient Too High

Across Outdoor Coil

 

for Operation in Heating

 

 

 

 

 

 

 

 

 

 

Refrigerant System

 

Reversing Valve not

Restriction

 

Fully Seated

 

 

 

 

 

 

 

 

 

 

Undercharged

 

Overcharged

 

 

 

 

 

 

 

 

 

 

Moisture in System

 

Defective Compressor

 

 

 

 

 

LOW HEAD PRESSURE

Refrigerant System

Restriction

Reversing Valve not Fully Seated

Undercharged

Defective Compressor

HIGH HEAD PRESSURE

Outdoor Ambient Too High For Operation In Heating

Low Airflow Across

Indoor Coil

Overcharged

Noncondensables (air)

in System

ELECTRICAL TROUBLESHOOTING CHART — HEAT PUMP

HEAT PUMP

SYSTEM COOLS WHEN

HEATING IS DESIRED.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is Line Voltage

 

 

 

Is the Selector Switch

Present at the Solenoid

NO

 

Set for Heat?

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

Is the Solenoid Coil Good?

 

 

 

Replace the Solenoid Coil

NO

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reversing Valve Stuck

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace the Reversing Valve

 

 

 

 

 

 

 

 

 

 

 

 

 

47

Image 49
Contents Room Air Conditioners Technical Support Contact Information Table Of Contents Your safety and the safety of others are very important Important Safety InformationRefrigeration System Hazards Property Damage Hazards Typical Unit Components Introduction2nd Digit 1st Digit Function7th Digit Options 0 = Straight Cool & Heat Pump Models 6th Digit Voltage 1 = 115 VoltsChassis Specifications for 2009, 2008 models Installation information / sleeve dimensions Performance Data for 2009, 2008 models Fire Hazard Electric Shock HazardMake sure the wiring is adequate for your unit To start unit To adjust temperature 60F 16C to 90F 32CHow to use the remote control* QuietMaster Programmable How to operate the Friedrich room air conditioner XQ models How to use the remote control XQ models How to operate the Friedrich room air conditioner Checking Room Temperature Testing the Electronic Control Boards for QME & XQ ModelsActivating Test Mode Testing the Electronic Control Error Code Listings KS, KM, SL Models See Figure Testing the Rotary Control SwitchesFunctional Component Definitions EQ08 System Control Switch TestMechanical Components Electrical ComponentsThermostat Adjustment Components TestingTest Thermostat Bulb LocationDefrost Thermostat Heat Pump Models Only Resistor Heat Anticipator See FigureDefrost Bulb Location Heat Pump Models Capacitor Check with Capacitor Analyzer CapacitorsCapacitor Connections FAN MotorHeating Element See Figure Testing the Heating Element Electric Shock HazardHeating Element Heat Pump Models Drain PAN ValveSmart FAN Operating Sequence / Characteristics and FeaturesRefrigeration Sequence of Operation Equipment Required Sealed Refrigeration System RepairsEquipment Must be Capable Risk of Electric ShockBurn Hazard Method Of Charging / RepairsFreeze Hazard Overcharged Refrigerant Systems Undercharged Refrigerant SystemsRestricted Refrigerant System Metering Device Hermetic Components CheckCheck Valve Capillary Tube SystemsReversing Valve DESCRIPTION/OPERATION Checking the Reversing Valve Testing the CoilTouch Test in Heating/Cooling Cycle Procedure For Changing Reversing ValveExplosion Hazard Compressor Checks Ground Test Single Phase Resistance TestChecking Compressor Efficiency Recommended procedure for compressor replacement Compressor ReplacementHigh Temperatures Rotary Compressor Special Troubleshooting and Service Coils and Base PAN Excessive Weight Hazard Routine MaintenanceBlower Wheel / Housing / Condenser FAN / Shroud AIR FilterFront Cover Sleeve / DrainProblem Possible Cause Action Cooling only Room AIR Conditioners Troubleshooting TipsReplace fuse, reset breaker. If repeats, check Fused separately Problem Possible Cause Action Heat / Cool only Room AIR Conditioners Troubleshooting Tips Problem Possible Cause Action Heat / Cool Room AIR Conditioners Trouble Shooting TipsHeat Pump System Cools When Heating is DesiredYES Malfunction of Valve Normal Function of ValveElectronic Control Cool only Models Electronic Control Cool only Models Electromechanical Control Cool only Models SL28L30-D,-E SL36L30A-D,A-E Page Electromechanical Control Cool with Electric Heat Models EL36L35A-D,A-E Electromechanical Control Heat Pump only Models YS13L33-D,-E YM18L34-D,-E YL24L35-E,-F Aham PUB. NO. RAC-1 Heat Gain from Quantity Factors Cooling Load Estimate FormDAY Heat Load Form Following is an example using the heat load formInfiltration Windows & Doors AVG Windows & Doors Area, sq. ftRoom AIR Conditioners Limited Warranty Page 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.

The units also feature advanced inverter technology, which allows for variable speed operation. This means that the system can adjust its cooling capacity based on the current temperature needs, resulting in more consistent comfort while reducing wear and tear on the equipment. Additionally, the inverter technology operates more quietly compared to traditional systems, making these models suitable for both home environments and commercial settings.

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.

Additionally, the air filtration systems in Friedrich 2008 and 2009 units improve indoor air quality. They effectively capture dust, allergens, and other particulates, ensuring a healthier environment for occupants.

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.