Friedrich 18, 24, 60, 49, 36, 42, 30, 000 Performing Routine Maintenance, Replace AIR Filter

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PERFORMING ROUTINE MAINTENANCE

With the proper maintenance and care, your system will operate economically and dependably. Maintenance can be accomplished easily by referring to the following directions. However, before performing any maintenance, consider these important safety precautions:

WARNING: Electrical Shock Hazard. Before attempting any service work or routine maintenance, turn off all electrical connections to the unit. Failure to do so may result in property damage, personal injury and/or death.

CAUTION: Although great care has been taken to minimize sharp edges in the construction of your unit, be extremely careful when handling parts or reaching into the unit.

REPLACE AIR FILTER

A dirty air filter reduces the efficiency of your Vert-I-Pak and allows lint and dirt to accumulate on the indoor-air coil. Lint and dirt on the indoor-air coil can damage your unit and void the warranty. The air filter should be replaced as it becomes dirty.

To replace the filter (front air return units):

1.Slide the filter to the right until it clears the filter rails (See Figure 12).

2.Remove the filter.

3.Install new disposable filter.

CAUTION: Do not operate your system without a filter in place, nor block the front of the unit return air opening.

Figure 12 Filter Replacement

Filter Rails

Air Filter

To remove the filter, slide it to the right side of the unit as shown.

Removing the Filter From the Front Filter Rack

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Contents Installation Table of Contents General Recommendations DOS and Donts Safety ConsiderationsSupplies Needed for Installation Unpack and Inspect UnitSection I General Specifications VERT-I-PAKMODEL Identification GuideCondensate Drain Exit Above Floor Section III Installation Unit Configuration Indoor and Outdoor AIR RequirementsOutdoor Air System VPBWP3 8/14 Wall Plenum VPBWP4 8/14 Wall PlenumVPBWP5 8/14 Wall Plenum VPBWP6 8/14 Wall PlenumTypical Ducted Outside Air Configuration Ducted Condenser AirOutdoor Fan Performance Indoor-Air Conditioned Supply Air System Indoor Fan PerformanceReturn Air Options Electrical Grounding Power Supply Cooling and FanWire Thermostat Cable to Unit Terminal Strip Thermostat Mounting and Wiring A. Thermostat LocationThermostat Mounting and Wiring Thermostat WiringInstallation Final Checklist Test RunIdentifying Your System Important FactsHeat Mode Operation Operating the VERT-I-PAK Thermostat OperationCooling Cycle Heating CycleDefrost Cycle Performing Routine Maintenance Replace AIR FilterInspect and Clean INDOOR-AIR Coil Inspect and Clean Condensate DrainInspect OUTDOOR-AIR Intake and Exhaust Use Factory-Certified Parts