Friedrich PDE07K Service Manual
Ptac pd series (electronic controls) packaged terminal air conditioners packaged terminal heat pumps
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Also See for PDE07K:
- Product profile (13 pages) ,
- Parts manual (11 pages) ,
- Installation instructions (4 pages)
Related Manuals for Friedrich PDE07K
Summary of Contents for Friedrich PDE07K
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Page 1: Service Manual
Service Manual PTAC PD Series (Electronic Controls) Packaged Terminal Air Conditioners Packaged Ter mi nal Heat Pumps • Standard Unit • Seacoast Protected Unit • Remote Thermostat Unit P2KPD 1-05... -
Page 2: Table Of Contents
TABLE OF CONTENTS Introduction ................................3 Typical Unit Components ............................3 Unit Identifi cation ..............................4 Unit Specifi cations ..............................5 Sequence Of Operation ............................6 Electrical Rating Tables ............................7 Power Cord Information ............................7 Digital Control Operation ............................8 Digital Control Features ............................ -
Page 3: Introduction
If you install or perform service on equipment, you must assume responsibility for any bodily injury or property damage which may result to you or others. Friedrich Air Conditioning Company will not be responsible for any injury or property damage arising from improper installation, service, and/or... -
Page 4: Unit Identifi Cation
UNIT IDENTIFICATION Model Number Code PD H 07 K 3 S B A Series Engineering Digit PD = P Series Digital PTAC Design Series System X = Accessory Options E = Cooling with or without electric heat S = Standard R = Remote Thermostat H = Heat Pump with C = Seacoast Protection... -
Page 5: Unit Specifi Cations
SPECIFICATIONS – PDE S ENERAL NFORMATION ERIES Model PDE07K PDE07R PDE09K PDE09R PDE12K PDE12R PDE15K PDE15R POWER VOLTAGE (1 PHASE, 60 Hz) 230/208 230/208 230/208 230/208 VOLT RANGE 253-198 292-239 253-198 292-239 253-198 292-239 253-198 292-239 POWER (WATTS) 615/598 800/783... -
Page 6: Sequence Of Operation
SEQUENCE OF OPERATION A good understanding of the basic operation of the refrigeration The refrigerant leaves the condenser Coil through the liquid system is essential for the service technician. Without this line as a warm high pressure liquid. It next will pass through understanding, accurate troubleshooting of refrigeration the refrigerant drier (if so equipped). -
Page 7: Electrical Rating Tables
NOTE: Use copper conductors only. POWER CORD INFORMATION (230/208V MODELS ONLY) All Friedrich 230/208V PTAC units are shipped from the NOTE: The LCDI device is not intended to be used as a factory with a Leakage Current Detection Interrupter (LCDI) switch. -
Page 8: Digital Control Operation
DIGITAL CONTROL OPERATION Temperature Display The Friedrich digital PTAC is shipped from the factory to display the desired room temperature on the LED readout. Digital Control Panel The unit can be confi gured to display the room temperature by simultaneously pressing the ‘Cool’ and ‘High Fan’ buttons for three seconds the display will show an ‘R’... -
Page 9: Friedrich Digital Control Features
FRIEDRICH DIGITAL CONTROL FEATURES The new Friedrich digital PTAC has state of the art features to improve guest comfort, indoor air quality and conserve energy. Through the use of specifi cally designed control software for the PTAC industry Friedrich has accomplished what other Manufacturer’s have only attempted –... - Page 10 High effi ciency rotary compressors are used on all Friedrich PTACs to maximize durability and effi ciency. The Friedrich PTAC features a 24V AC terminal for connection to an auxiliary fan that may be used to transfer Auxiliary Fan Ready air to adjoining rooms.
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Page 11: Remote Thermostat / Low Voltage Control Connections
Remote Thermostat Thermostat Location All Friedrich PD model PTAC units are factory confi gured to be controlled by either the chassis mounted Smart Center or a 24V single stage remote wall mounted thermostat. The thermostat may be auto or manual changeover as long as the control confi... -
Page 12: Digital Control User Input Confi Guration
DIGITAL CONTROL USER INPUT CONFIGURATION The adjustable control dip switches are located at the lower left hand portion of the digital Smart Center. The inputs are only visible and accessible with the front cover removed from the PTAC. Heating Range Switches 1 & 2 Dip Switch Setting 1) Electronic Temperature Limiting –... -
Page 13: Digital Control Diagnostics And Test Mode
DIGITAL CONTROL DIAGNOSTICS AND TEST MODE Diagnostics Test Mode The Friedrich Smart Center continuously monitors the PTAC For service and diagnostic use only, the built-in timers and unit operation and will store service codes if certain conditions delays on the PTAC may be bypassed by pressing the ‘Cool’... -
Page 14: Calculating The Approximate Cfm
CALCULATING THE APPROXIMATE CFM The approximate CFM actually being delivered can be EXAMPLE: Measured voltage to unit (heaters) is 230 volts. calculated by using the following formula: Measured Current Draw of strip heaters is 11.0 amps. 230 x 11.0 = 2530 KILOWATTS x 3413 2530/1000 = 2.53 Kilowatts Temp. -
Page 15: Undercharged Refrigerant Systems
NOTE: In order to access the sealed system it will be necessary to install Schrader type fi ttings to the process tubes on the discharge and suction of the compressor. Proper recovery refrigerant procedures need to be ad hered to as outlined in EPA Regulations. -
Page 16: Restricted Refrigerant System
Restricted Refrigerant System Troubleshooting a restricted re frig er ant sys tem can be diffi cult. The following proce dures are the more com mon prob lems and so lu tions to these problems. There are two types of re frig er ant restrictions: Par tial re stric tions and com plete restrictions. -
Page 17: Metering Device
METERING DEVICE Capillary Tube Systems All units are equipped with capillary tube me ter ing de- Switch the unit to the heating mode and observe the vic es. gauge readings af ter a few min utes running time. If the system pressure is low er than nor mal, the heating Checking for re strict ed cap il lary tubes. -
Page 18: Testing The Coil
TESTING THE COIL 1. Turn off high voltage electrical pow er to unit. 2. Unplug line voltage lead from re vers ing valve coil. 3. Check for electrical continuity through the coil. If you do not have con ti nu ity re place the coil. 4. -
Page 19: Compressor Checks
Make sure that the ends of the lead do not touch the compressor shell since this will cause a short circuit. Determine L.R.V. Start the compressor with the volt me ter attached; then stop the unit. Attempt to re start the compressor within a couple of seconds and immediately read the voltage on the meter. - Page 20 Single Phase Resistance Test Remove the leads from the com pres sor ter mi nals and set Many compressor failures are caused by the fol low ing the ohm me ter on the low est scale (R x 1). conditions: Improper air fl...
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Page 21: Capacitors
Using an acid test kit (one shot or conven tional kit), test Evacuate the system with a good vac u um pump the oil for acid content ac cord ing to the in struc tions capable of a fi nal vac u um of 300 microns or less. with the kit. -
Page 22: Routine Maintenance
ROUTINE MAINTENANCE NOTE: Units are to be inspected and ser viced by qual i fi ed service per son nel only. Clean the unit air intake fi lter at least every 300 to 350 hours of operation. Clean the fi lters with a mild detergent in warm water and allow to dry thoroughly before reinstalling. -
Page 23: Troubleshooting Charts
TROUBLESHOOTING CHART — COOLING REFRIGERANT SYSTEM DIAGNOSIS COOLING Low Suction Pressure High Suction Pressure Low Head Pressure High Head Pressure Low Load Conditions High Load Conditions Low Load Conditions High Load Conditions Low Air Flow Across High Air Flow Across Refrigerant System Low Air Flow Across Indoor Coil... - Page 24 ELECTRICAL TROUBLESHOOTING CHART - HEAT PUMP HEAT PUMP SYS TEM COOLS WHEN HEAT ING IS DE SIRED. Is Line Voltage Is the Selector Switch Present at the Solenoid Set for Heat? Valve? Is the So le noid Coil Good? Replace the Solenoid Coil Reversing Valve Stuck Replace the Reversing Valve...
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Page 25: Wiring Diagram - Cooling Without Electric Heat
WIRING DIAGRAM - COOLING WITHOUT ELECTRIC HEAT... -
Page 26: Wiring Diagram - Cooling With Electric Heat
WIRING DIAGRAM - COOLING WITH ELECTRIC HEAT... -
Page 27: Wiring Diagram - Heat Pump With Electric Heat
WIRING DIAGRAM - HEAT PUMP WITH ELECTRIC HEAT... - Page 28 FRIEDRICH AIR CONDITIONING CO. Post Office Box 1540 · San Antonio, Texas 78295-1540 4200 N. Pan Am Expressway · San Antonio, Texas 78218-5212 (210) 357-4400 · FAX (210) 357-4480 www.friedrich.com Printed in the U.S.A. P2KPD 1-05...