Friedrich 2009, 2008 service manual Operating Sequence / Characteristics and Features, Smart FAN

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ELECTRONIC CONTROL SEQUENCE OF OPERATION QME PROGRAMMABLE AND XQ MODELS

Mode Control

The mode control pad(s) allow the selection of the operating modes of the unit.

There is a two second delay before the mode activates its appropriate relay.

OPERATING SEQUENCE / CHARACTERISTICS AND FEATURES

Compressor Operation

The run state of the compressor is determined by the difference between the indoor ambient temperature and the set temperature. See specific mode of operation for details.

Compressor Time Delay: 180 seconds

This feature is initiated every time the compressor is de- energized, either due to:

(1)satisfying the temperature set point

(2)changing mode to fan only

(3)a power interruption or

(4)turning the unit off

The compressor is also time delayed for 3 minutes when the control is first plugged in or power is restored after failure. When the compressor cycles off as a result of satisfying the “load”, the time delay is typically timed out during the off cycle. Compressor time delay is bypassed by “Test Mode”.

Return Air Temperature Sensor

The control range is 60°F to 90°F +/- 2.0°F.

Frost Protection Sensor

Temperature settings:

Disable the compressor when sensing 30 +/- 3°F for 2 min. continuously.

Enable compressor @ 55 +/- 5°F.

The fan should not be affected by the Frost Protection. It should continue to function normally if freeze protection is called for.

COOL Mode for SS, SM and XQ Models

When in the COOL mode, the control will turn on the compressor when the indoor temperature is 1.5°F above the set point and turn off the compressor when the ambient gets below the set point by 1.5°F. The fan will run continuously.

MONEY SAVER Mode

When in MONEY SAVER mode, the system will be turned on when the indoor temperature gets above the set point by 0.75°F and turns off when the indoor temperature gets below the set point by 0.75°F. The fan will turn on 5 seconds before the compressor and turn off 5 seconds after the compressor stops. If the compressor is delayed the fan will continue to run while the compressor restarts. If the

thermostat remains satisfied for more than approximately 9 minutes, the fan will turn on for a period of 90 seconds for air sampling. Operation in MONEY SAVER mode will light both the MONEY SAVER and COOL indicators.

FAN ONLY Mode

When in the FAN ONLY mode, the compressor will not operate. The fan will run continuously at the user-selected speed (see “Fan Speed Set” below). Smart Fan is not available in FAN ONLY Mode.

Fan Speed Set

SS/SM fan speed is changed by pressing SPEED 1-4 pad and scrolling through F1, F2, F3, and F4 in the digital display.

XQ fan speed is changed by pressing FAN SPEED pad and scrolling through F1, F2, F3 and SF (Smart Fan) in the digital display.

There will be a 2 second delay before the fan speed changes to prevent unnecessary switching of the relays during fan speed selection.

SMART FAN

On the SS/SM models, smart fan is activated by pressing the SMART FAN button. On the XQ model, smart fan is activated by pressing the FAN SPEED button and scrolling through speeds until “SF” appears in the digital display. Using the remote control, Smart Fan is selected by the fourth push of Fan Speed button.

Smart fan changes fan speeds based on the temperature differential between the ambient and set temperatures.

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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 Introduction6th Digit Voltage 1 = 115 Volts 1st Digit Function2nd Digit 7th Digit Options 0 = Straight Cool & Heat Pump ModelsChassis 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 Testing the Electronic Control Boards for QME & XQ Models Checking Room TemperatureActivating Test Mode Testing the Electronic Control Error Code Listings KS, KM, SL Models See Figure Testing the Rotary Control SwitchesElectrical Components EQ08 System Control Switch TestFunctional Component Definitions Mechanical ComponentsThermostat Bulb Location Components TestingThermostat Adjustment TestResistor Heat Anticipator See Figure Defrost Thermostat Heat Pump Models OnlyDefrost Bulb Location Heat Pump Models FAN Motor CapacitorsCapacitor Check with Capacitor Analyzer Capacitor ConnectionsDrain PAN Valve Testing the Heating Element Electric Shock HazardHeating Element See Figure Heating Element Heat Pump ModelsSmart FAN Operating Sequence / Characteristics and FeaturesRefrigeration Sequence of Operation Risk of Electric Shock Sealed Refrigeration System RepairsEquipment Required Equipment Must be CapableMethod Of Charging / Repairs Burn HazardFreeze Hazard Overcharged Refrigerant Systems Undercharged Refrigerant SystemsRestricted Refrigerant System Capillary Tube Systems Hermetic Components CheckMetering Device Check ValveReversing Valve DESCRIPTION/OPERATION Checking the Reversing Valve Testing the CoilProcedure For Changing Reversing Valve Touch Test in Heating/Cooling CycleExplosion Hazard Compressor Checks Single Phase Resistance Test Ground TestChecking Compressor Efficiency Compressor Replacement Recommended procedure for compressor replacementHigh Temperatures Rotary Compressor Special Troubleshooting and Service AIR Filter Routine MaintenanceCoils and Base PAN Excessive Weight Hazard Blower Wheel / Housing / Condenser FAN / ShroudFront 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 TipsSystem Cools When Heating is Desired Heat PumpYES 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 Cooling Load Estimate Form Heat Gain from Quantity FactorsDAY 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.
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