920-087-04

J. Routine Maintenance

NOTE: Units are to be inspected and serviced by qualified service personnel only.

1.Clean the unit air intake filter at least every 300 to 350 hours of operation. Clean the filters with a mild detergent in warm water and allow to dry thoroughly before reinstalling.

2.The indoor coil (evaporator coil), the outdoor coil (condenser coil) and base pan should be inspected periodically (yearly or bi-yearly) and cleaned of all debris (lint, dirt, leaves, paper, etc.). Clean the coils and base pan with a soft brush and compressed air or vacuum. If using a pressure washer, be careful not to bend the aluminium fin pack. Use a sweeping up and down motion in the direction of the vertical aluminum fin pack when pressure cleaning coils. Cover all electrical components to protect them from water or spray.

Before reinstalling the chassis in the sleeve, inspect the indoor blower housing, blower wheel, condenser fan blade, and condenser shroud periodically (yearly or bi-yearly) and clean of all debris (lint, dirt, mold, fungus, etc.) Clean the blower housing area and blower wheel with an antibacterial

/antifungal cleaner. Use a biodegradable cleaning agent and degreaser on condenser fan and condenser shroud. Use warm or cold water when rinsing these items. Allow the unit to dry thoroughly, inspect all gasket material for deterioration (replace as necessary), and then reinstall the chassis in the sleeve.

NOTE: Do not use a caustic coil cleaning agent on coils or base pan. Use a biodegradable cleaning agent and degreaser.

3.Periodically (at least yearly or bi-yearly): inspect all control components, both electrical and mechanical, as well as the power supply. Use proper testing instruments (voltmeter, ohmmeter, ammeter, wattmeter, etc.) to perform electrical tests. Use an air conditioning or refrigeration thermometer to check room, outdoor and coil operating temperatures. Use a sling psychrometer to measure wet bulb temperatures indoors and outdoors.

4.Inspect the surrounding area (inside and outside) to ensure that the units' clearances have not been compromised or altered.

5.Inspect the sleeve and drain system periodically (at least yearly or bi-yearly) and clean of all obstructions and debris. Clean both areas with an antibacterial and antifungal cleaner. Rinse both items thoroughly with water and ensure that the drain outlets are operating correctly. Check the sealant around the sleeve and reseal areas as needed.

6.Clean the front cover when needed. Use a mild detergent. Wash and rinse with warm water. Allow them to dry thoroughly before reinstalling them in the chassis.

Figure 16

Components

 

Condenser Fan Blade

Condenser Gasket

Outdoor Grille

 

 

 

 

 

 

Indoor Blower

Condenser Shroud

 

 

 

 

 

Discharge Air Grille

 

 

Filters

Indoor Blower

 

 

 

Housing

 

 

 

 

Gasket

 

 

 

Compressor

Wall Sleeve

 

Front Cover

Basepan

 

 

 

Innerwall

 

Return Air

 

Control Panel

 

Grille

 

Evaporator Coil

 

22

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Friedrich HEAT PUMPS manual Routine Maintenance, Components
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HEAT PUMPS specifications

Friedrich Heat Pumps are designed to provide efficient heating, cooling, and dehumidification solutions for various applications, including residential, commercial, and industrial settings. Renowned for their innovative technology and commitment to sustainability, Friedrich has become a recognized name in the HVAC industry.

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In addition to energy efficiency, Friedrich offers a variety of models to suit different needs. The range includes air-source heat pumps, which extract heat from the outdoor air, and geothermal heat pumps, which utilize the stable temperatures found underground. This versatility allows users to select a system that best fits their specific climate conditions and application requirements.

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Another notable characteristic is their quiet operation. Friedrich Heat Pumps are engineered with noise-reducing features, making them suitable for residential areas where noise may be a concern. This focus on quiet performance ensures that users can enjoy a comfortable indoor environment without disruptive sound.

Durability and reliability are also key attributes of Friedrich Heat Pumps. Built with high-quality materials and rigorous testing processes, these systems are designed to withstand varying environmental conditions and provide long-lasting performance. Regular maintenance is further simplified with easy access to essential components, prolonging the system's lifespan.

In conclusion, Friedrich Heat Pumps stand out for their energy efficiency, innovative technologies, and superb performance characteristics. With options suitable for a wide array of applications, they are an excellent choice for anyone looking to enhance their indoor climate control while reducing their environmental footprint. Their advanced features, silent operation, and reliability make them a preferred option for modern heating and cooling solutions. Whether for residential or commercial use, Friedrich Heat Pumps offer a perfect blend of comfort, efficiency, and sustainability.
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