Friedrich R-410A service manual How to operate the Friedrich room air conditioner XQ models

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How to operate the Friedrich room air conditioner (XQ models)

To start unit

If your air conditioner is installed and plugged into a proper receptacle, it is ready to go. The first time the unit is started, the compressor will delay for three minutes. See Automatic Component Protection on the following page.

1Touch the Power button once. The unit will automatically be in Cool mode with the temperature set at 75°F (24°C) and the fan speed at F1, the sleep setting.

To set mode of operation

When you rst turn the unit on, it will be in the Cool mode (light on), with constant fan.

2Touch the Mode button once to activate the MoneySaver® (light on).

MoneySaver® is a feature that cycles the fan with the compressor so that the fan does not run all the time. This saves energy and improves dehumidi cation. Or you may prefer constant fan for more air movement (to return to constant fan, touch the Mode button two more times).

In order to run the fan by itself, do the following:

88 99

22 33 44

11

Figure 5

 

 

 

Figure 3

PM

 

 

 

 

X Star

PM

 

 

 

 

 

 

 

 

 

 

 

Power

 

 

 

 

 

 

Power

 

 

 

 

 

Cool

 

 

Fan

 

Mode

Cool

®

 

Speed

 

Money Saver

 

Fan

 

Mode

Money Saver®

 

Speed

 

Fan Only

 

 

 

 

 

 

Fan Only

 

 

 

 

 

 

Clock

 

 

Timer

 

Set

Clock

 

 

 

Start Time

 

 

Timer

 

Hour

Start Time

 

 

 

Set

 

 

On/Off

 

Hour

Stop Time

Temp/Hour

 

Stop Time

 

 

 

 

Temp/Hour

 

 

 

 

 

13

10

11

12

 

55

66

13

10

11

12

 

77

 

3Continuing from MoneySaver® mode (light on), touch the Mode button once to activate the FAN ONLY feature (light on).

The FAN ONLY setting will circulate air in the room without the com- pressor coming on.

To adjust temperature

4Use the Mode button to select either the COOL or MoneySaver® function

5COOLER – Touch the button to lower the room air temperature.

6WARMER – Touch the button to raise the room air temperature.

7Press both the and buttons at the same time to switch the temperature readout from Fahrenheit (°F) to Celsius (°C).

Repeat step 7 to switch from °C back to °F.

To adjust fan speed

8Touch the Fan Speed button to see the current setting. Touch it again to change speed. F1 is the lowest setting (SLEEP SETTING / LOW), F2 is MEDIUM, and F3 is HIGH.

To activate Smart Fan

9There is a fourth option, SF, when selecting the fan speed. This is the SMART FAN function. SMART FAN DOES NOT OPERATE IN CONJUCTION WITH THE FAN ONLY MODE.

Smart Fan will adjust the fan speed automatically to maintain the desired comfort level. For example, if the outside doors in your home are opened for an extended period of time, or more people enter a room, Smart Fan may adjust to a higher fan speed to compensate for the increased heat load. This keeps you from having to adjust the fan speed on your own.

To set the hour clock

10Touch the Set Hour button to see the current setting (clock light comes on). The number that is displayed is the approximate time (hour only). Use the and buttons to change the settings. BE SURE TO SET A.M. AND P.M. ACCORDINGLY. (P.M. is indicated by a red light in the upper left corner of the display).

To set the timer

NOTE: Set the HOUR CLOCK before attempting to set timer functions.

You can set the START and STOP times a minimum of one hour apart, and a maximum of twenty-three hours apart.

11After setting the time, press the Set Hour button once (Start light comes on). Use the and buttons to select the time that the unit will START.

12After selecting the START time, press the Set Hour button once more (Stop light comes on). Use the and buttons to select the time that the unit will STOP. After selecting the stopping time, press the Set Hour button once.

13Press the Timer On/Off button (light turns on) to activate the timer function. To deactivate this function, press the Timer On/Off button once again (light turns off). Once the on and off times have been selected, they will remain in memory and cycle daily until changed.

NOTE: If the unit is unplugged or the power is interrupted, the HOUR must be reset or the Timer On/Off will not function when desired.

Automatic component protection

Your unit is equipped with Automatic Component Protection. To protect the compressor of the unit, there is a three minute start delay if you turn the unit off or if power is interrupted. The fan operation will not be affected. Also, if you switch from Cool mode to Fan Only, and switch back to Cool mode, there is a three minute delay before the compressor comes back on.

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Contents Volt XQ05M10A, XQ06M10A, XQ08M10A, XQ10M10A Volt EQ08M11ATable Of Contents Important Safety Information Your safety and the safety of others are very importantRefrigeration System Hazards Introduction Property Damage Hazards5th Digit 7th Digit Options 0 = Straight Cool6th Digit Voltage 00001Performance Data Electrical RatingsElectric Shock Hazard Fire HazardMake sure the wiring is adequate for your unit How to operate the Friedrich room air conditioner XQ models How to use the remote control XQ models Electronic Control Sequence of Operation Operating Sequence / Characteristics and FeaturesSmart FAN Electrical Components Functional Component DefinitionsMechanical Components Hermetic ComponentsError Code Listings Components TestingTesting the Electronic Control Boards for XQ Models Activating Test ModeThermostat Adjustment EQ08 System Control Switch TestEQ08 System Control Switch Test TestCapacitor Connections CapacitorsCapacitor Check with Capacitor Analyzer FAN MotorHeating Element Testing the Heating Element Electric Shock HazardDrain PAN Valve Refrigeration Sequence of Operation 410A Sealed System Repair Considerations Refrigeration system under high pressureEquipment Must be Capable 410A Sealed Refrigeration System RepairsEquipment Required Risk of Electric ShockBurn Hazard Method Of Charging / RepairsFreeze Hazard Undercharged Refrigerant Systems Overcharged Refrigerant SystemsRestricted Refrigerant System Compressor Checks Single Phase Resistance Test Ground TestHigh Temperatures Compressor ReplacementRecommended procedure for compressor replacement Explosion HazardRotary Compressor Special Troubleshooting and Service Routine Maintenance Front Cover Sleeve / DrainClearances Room AIR Conditioner Unit Performance Test Data Sheet Date Model SerialGeneral Troubleshooting Tips Problem Possible Cause Possible SolutionGeneral Troubleshooting Tips Cooling only Room AIR Conditioners Troubleshooting Tips Problem Possible Cause ActionReplace fuse, reset breaker. If repeats, check Fused separately Problem Possible Cause Action Heat / Cool only Room AIR Conditioners Troubleshooting Tips Electronic Control Cool only Models Page Aham PUB. NO. RAC-1 Heat Gain from Quantity Factors Cooling Load Estimate FormDAY Following is an example using the heat load form Heat Load FormWindows & Doors Area, sq. ft Infiltration Windows & Doors AVGRoom AIR Conditioners Limited Warranty Technical Support Contact Information Page Friedrich AIR Conditioning CO
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R-410A specifications

Friedrich R-410A is an advanced refrigerant widely used in HVAC (Heating, Ventilation, and Air Conditioning) systems, known for its high efficiency and environmental friendliness. As a hydrofluorocarbon (HFC) blend, R-410A has become the preferred alternative to R-22, which is being phased out due to its ozone-depleting potential. One of the main features of R-410A is its high latent heat of vaporization, which allows for efficient heat transfer and improved cooling performance in air conditioning units.

Technologically, R-410A operates at higher pressures than older refrigerants, meaning systems designed for R-410A need to be built with more robust components to safely handle these pressures. This results in a more compact system design that offers enhanced performance and reliability. The dual-component nature of R-410A—composed of difluoromethane (R-32) and pentafluoroethane (R-125)—provides an optimal balance of thermodynamic properties, leading to superior energy efficiency, especially in variable speed applications.

In terms of characteristics, R-410A has a higher cooling capacity, which enables HVAC systems to effectively cool larger spaces or run more efficiently when cooling smaller areas. The refrigerant is non-toxic and non-flammable, which enhances safety during its use. In addition, R-410A has a lower global warming potential relative to other refrigerants, making it a more environmentally responsible choice for modern cooling systems.

Moreover, R-410A systems typically require less refrigerant charge due to their efficiency, contributing to reduced greenhouse gas emissions. The adoption of R-410A aligns with regulatory trends aimed at minimizing the environmental impact of refrigerants in cooling applications.

Overall, the Friedrich R-410A refrigerant embodies a combination of technology and environmental stewardship, making it a cornerstone of contemporary HVAC design. Its ability to provide effective and energy-efficient cooling solutions while being compliant with modern environmental regulations positions R-410A as the refrigerant of choice for engineers and installers focused on sustainability and performance in air conditioning systems.
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