Routine Maintenance | Friedrich PTAC manual

920-087-02 (9-03)

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. 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.

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 all items to dry thoroughly before reinstalling them.

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.

	Condenser Fan Blade	Condenser Gasket	Outdoor Grille
			Outdoor Grille

	Indoor Blower	Condenser Shroud
	Indoor Blower
	Discharge Air Grille
Filters	Indoor Blower
	Housing
		Gasket
		Compressor	Wall Sleeve
	Front Cover	Basepan
		Innerwall
Return Air		Control Panel
Grille		Control Panel
Grille		Evaporator Coil

PTAC specifications

Friedrich PTAC (Packaged Terminal Air Conditioner) units are a popular choice for heating and cooling in commercial and residential spaces, thanks to their efficient design and reliable performance. Friedrich, a company with a long-standing reputation in the HVAC industry, offers a range of PTAC units characterized by advanced features and technologies that set them apart from traditional cooling systems.

One of the main features of Friedrich PTAC units is their high energy efficiency. Many of their models are Energy Star certified, which means they meet the stringent energy efficiency guidelines set by the U.S. Environmental Protection Agency. This efficiency translates into lower energy costs for users and reduced environmental impact, making them an excellent choice for energy-conscious consumers.

Friedrich PTAC units are equipped with advanced technologies that enhance their functionality. For instance, many units come with a built-in Wi-Fi option, enabling remote control through mobile devices. This feature allows users to monitor and adjust temperature settings, schedules, and modes from anywhere, providing convenience and ensuring energy is not wasted when spaces are unoccupied.

The design of Friedrich PTAC units also emphasizes ease of installation and maintenance. These units are designed to fit into existing wall sleeves, making replacement straightforward without significant structural modifications. Furthermore, their ease of access for servicing ensures that maintenance tasks can be performed quickly, reducing downtime and improving longevity.

Another key characteristic of Friedrich PTAC units is their robust construction. Built to withstand varying conditions, these units feature durable materials that ensure long-term reliability. Many models incorporate advanced sound-dampening technology, creating a quieter operation that enhances comfort, especially in residential applications.

Friedrich’s commitment to innovation is evident in its product line, offering various options to meet different climate requirements and user preferences. The units can provide both heating and cooling, making them versatile for year-round use. Additionally, they are available in various BTU capacities, allowing customers to select the appropriate model for their specific space needs.

Overall, Friedrich PTAC units are recognized for their efficiency, technological advancements, ease of installation, and sturdy design, making them an excellent choice for both commercial and residential applications where reliable climate control is needed.