Friedrich PTAC - R410A service manual General Product Features

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General Product Features

DIAMONBLUE

Diamonblue seacoast protection protects the outdoor coil from harsh environments. Comes standard

TECHNOLOGY

on all models.

 

 

DIGITAL DEFROST

The new Friedrich PTAC uses a digital thermostat to accurately monitor the outdoor coil conditions to al-

low the heat pump to run whenever conditions are correct. Running the PTAC in heat pump mode saves

THERMOSTAT

energy and reduces operating costs. The digital thermostat allows maximization of heat pump run time.

 

 

 

INSTANT HEAT

Heat pump models will automatically run the electric heater to quickly bring the room up to temperature

when initially energized, then return to heat pump mode. This ensures that the room is brought up to

HEAT PUMP MODE

temperature quickly without the usual delay associated with heat pump units.

 

 

 

EVEN HEAT MONITORING

of the setpoint. If necessary, the unit will cycle the electric heat to maintain the temperature. This feature

 

-

 

 

 

The owner may choose between fan cycling or fan continuous mode based on property preference. (Note:

 

Even heat monitoring and quiet start/stop fan delay only operate in fan cycle mode) Fan continuous mode is

SEPARATE HEAT/COOL

 

FAN CYCLE

energy by only operating the fan while the compressor or electric heater is operating. The ability to set the

CONTROL

fan cycling condition independently between heating and cooling mode will increase user comfort by

 

allowing the choice of only constantly circulating air in the summer or winter time. Unlike other PTAC

 

brands that only allow one selection.

 

 

EMERGENCY

In the event of a compressor failure in heat pump mode, the compressor may be locked out to provide

heat through the resistance heater. This feature ensures that even in the unlikely event of a compressor

HEAT OVERRIDE

failure, the room temperature can be maintained until the compressor can be serviced.

 

 

 

DESK CONTROL

All Friedrich digital PTACs have low voltage terminals ready to connect a desk control energy manage-

ment system. Controlling the unit from a remote location like the front desk can reduce energy usage and

READY

requires no additional accessories on the PTAC unit.

 

 

 

INDOOR COIL

temperatures cause the indoor coil to freeze. When the indoor coil reaches 30°F, the compressor is

FROST SENSOR

disabled and the fan continues to operate based on demand. Once the coil temperature returns to 45°F,

 

the compressor returns to operation.

 

 

ULTRA QUIET

The new Friedrich PD series units feature an indoor fan system design that reduces sound levels without

AIR SYSTEM

 

 

 

HIGH EFFICIENCY

The Friedrich PTAC has been engineered so that all functional systems are optimized so that they work

together to deliver the highest possible performance.

 

 

 

DUAL MOTOR

With Friedrich’s new dual-motor design the indoor motor can run at slower speeds which reduces sound

levels indoors.

 

 

 

ROTARY COMPRESSOR

-

ciency.

 

 

 

STAINLESS STEEL

Outdoor coil endplates made from stainless steel reduce corrosion on the outdoor coil common with other

ENDPLATES

coil designs.

 

 

TOP -MOUNTED

 

ANTIMICROBIAL

 

AIR FILTERS

front cover.

 

 

 

FILTERED FRESH

Friedrich PTAC units are capable of introducing up to 75 CFM of outside air into the conditioned space.

AIR INTAKE

The outdoor air passes through a washable mesh screen to prevent debris from entering the airstream.

 

 

R-410A REFRIGERANT

Friedrich PTAC units use environmentally-friendly refrigerant.

 

 

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Contents Ptac R410A Models Technical Support Contact Information Table of Contents Your safety and the safety of others are very important Important Safety InformationPersonal Injury or Death Hazards Mechanical Hazards IntroductionGeneral Product Features Digital Packaged Terminal Air Conditioners & Heat Pumps Component Identification Accessories Pxfta Unit Identification Chassis Specifications Cooling & Heating Performance PDE 265V Extended Cooling Performance Electric Heat Data Electrical Rating Tables Power Cord Information 230/208V Models onlyElectric Shock Hazard Electrical Wiring for 265 Volt Models To Chassis Junction Remote Control Thermostat Installation Desk Control Terminals Digital Temperature Friedrich Digital Control Features+*&-.4-*2+4 #$%&#*%&+,-*&./0#&1!0*$# DIP SwitchDigital Control Diagnostics Fan can’t run or the fan speed is too slow Malfunction AnalysisKeep the air tightness well. Try not to use the electic Supply voltage is abnormal Capacitor Connections Components TestingCapacitors Capacitor Check with Capacitor AnalyzerDrain PAN Valve Heater Elements and Limit SWITCHES’ SpecificationsRefrigeration Sequence of Operation Risk of Electric Shock 410A Sealed Refrigeration System RepairsEquipment Required Equipment Must be CapableFreeze Hazard Method Of Charging / RepairsUndercharged Refrigerant Systems Burn HazardRestricted Refrigerant System Overcharged Refrigerant SystemsCapillary Tube Systems Hermetic Components CheckMetering Device Check ValveReversing Valve DESCRIPTION/OPERATION Testing the CoilChecking the Reversing Valve Touch Test in Heating/Cooling Cycle Procedure For Changing Reversing ValveFire Hazard Compressor Checks External Overload Single Phase Resistance TestGround Test Recommended procedure for compressor replacement Compressor ReplacementHigh Temperatures Electrical Shock Hazard Routine MaintenanceTroubleshooting Chart Heating Troubleshooting Chart CoolingSystem Cools When Heating is Desired Electrical Troubleshooting Chart Heat PumpYES Electronic Control Board Electronic Control Board Component ID Wiring DiagramRT6 5558+131!8 Resistance Table for Air Indoor Temperature Sensor Temp Resistance Friedrich Packaged Terminal AIR Conditioners and Heat Pumps Ptac Exploded View Ptac Parts List PDE Models Ptac Parts List PDH Models Friedrich AIR Conditioning CO