Service Manual 2 0 11 PTAC - R410A Models Packaged Terminal Air Conditioners Packaged Terminal Heat Pumps PD-ServMan-E (2-11)
CUSTOMER SATISFACTION and QUALITY ASSURANCE Friedrich is a conscientious manufacturer, concerned about customer satisfaction, product quality, and controlling warranty costs. As an Authorized Service Provider you play a vital role in these areas. By adhering to the policies and procedures you provide us with vital information on each warranty repair you complete.
Table of Contents Important Safety Information ...........................................2-4 Capillary Tube Systems/Check Valve ..........................33 Introduction .........................................................................4 Reversing Valve — Description/Operation ...................34 General Product Features ..................................................5 Testing Coil ...................................................................34 HVAC Engineering Specifications ......
IMPORTANT SAFETY INFORMATION The information contained in this manual is intended for use by a qualified service technician who is familiar with the safety procedures required for installation and repair, and who is equipped with the proper tools and test instruments required to service this product.
PERSONAL INJURY OR DEATH HAZARDS ELECTRICAL HAZARDS: • Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenance, or service. • Make sure to follow proper lockout/tag out procedures. • Always work in the company of a qualified assistant if possible. • Capacitors, even when disconnected from the electrical power source, retain an electrical charge potential capable of causing electric shock or electrocution.
• Make sure to follow all safety precautions and to use proper protective safety aids such as: gloves, safety glasses, clothing etc. • Failure to follow proper safety procedures and/or these warnings can result in serious injury or death. MECHANICAL HAZARDS: • Extreme care, proper judgment and all safety procedures must be followed when testing, troubleshooting, handling, or working around unit with moving and/or rotating parts.
General Product Features DIAMONBLUE TECHNOLOGY Diamonblue seacoast protection protects the outdoor coil from harsh environments. Comes standard on all models. DIGITAL DEFROST THERMOSTAT The new Friedrich PTAC uses a digital thermostat to accurately monitor the outdoor coil conditions to allow the heat pump to run whenever conditions are correct. Running the PTAC in heat pump mode saves energy and reduces operating costs. The digital thermostat allows maximization of heat pump run time.
Digital Packaged Terminal Air Conditioners & Heat Pumps Cooling: 7600 – 15,000 Btuh Heating: 7600 – 14500 Btuh (Heat Pump) 6824 – 17060 Btuh (Electric Heat) Friedrich Models: PDE – Cooling with or without electric heat PDH – Heat Pump with electric heat All units shall be factory assembled, piped, wired and fully charged with 310 for air conditioners and ARI standard 380 for heat pumps. Units shall be UL listed and carry a UL label.
Component Identification Typical Unit Components and Dimensions WALL SLEEVE DISCHARGE GRILLE OUTDOOR GRILLE FILTERS CHASSIS RETURN AIR GRILLE FRONT COVER PDXWS Wall Sleeve Dimensions: 16" H x 42" W x 13-¾" D Front Cover Dimensions: 16" H x 42" W x 7-¾" D Cut-Out Dimensions: 16-¼" x 42-¼" 7
Accessories New Construction Accessories PDXWS WALL SLEEVE Galvanized zinc coated steel is prepared in an 11-step oven for exceptional durability. The wall sleeve is insulated for sound PDXWS PDXWSEXT DEEP WALL SLEEVE EXTENSION For use when the wall is thicker than 13 1/4”deep. The wall sleeve may be special ordered through your ments.. PDXWSEXT PXGA GRILLE Standard, stamped aluminium, anodized to resist chalking and oxidation.
Accessories New Construction Accessories PXCJA CONDUIT KIT WITH JUNCTION BOX Hard wire conduit kit with junction box for 208/230V and 265V units (subbase not required). Kit includes a means of quick disconnect for easy removal of the chassis. *Required for 265V installations. PXFTA REPLACEMENT FILTER PACK These are original equipment return air chassis).
UNIT IDENTIFICATION Model Number Code PD H 07 K 3 S F A Series PD = P Series Digital PTAC Engineering Digit Design Series System E = Cooling with or without electric heat Options H = Heat Pump with Auxiliary Heat S = Standard Nominal Cooling Capacity 07 = 7000 BTUh 09 = 9000 BTUh 12 = 12000 BTUh 15 = 15000 BTUh Nominal Heater Size (@ 230V or 265V) 0 = No Heater 2 = 2KW 3 = 3KW 5 = 5.0KW Voltage K = 208/230V - 1Ph. - 60Hz. R = 265V - 1Ph. - 60Hz.
Chassis Specifications PDE Series PERFORMANCE DATA: COOLING BTUh POWER (WATTS) EER DEHUMIDIFICATION (pints/hr) SENSIBLE HEAT RATIO ELECTRICAL DATA: VOLTAGE (1 PHASE, 60 Hz) VOLT RANGE CURRENT (AMPS) POWER FACTOR Compressor LRA Compressor RLA Fan motor horsepower AIRFLOW DATA: INDOOR CFM, HIGH INDOOR CFM, MED INDOOR CFM, LOW VENT CFM PHYSICAL DATA: DIMENSIONS NET WEIGHT SHIPPING WEIGHT R-410A CHARGE (oz) Dim.s w/ Pkg. PDE07K PDE07R PDE09K PDE09R PDE12K PDE12R PDE15K PDE15R 7700/7600 640/620 12.0/12.
Cooling & Heating Performance PDE 230V - Extended Cooling Performance OUTDOOR DRY BULB TEMP. (DEGREES F AT 40% R.H.) 75 85 95 105 110 INDOOR WET BULB TEMP. (DEGREES F AT 80 F D.B.) PDE07 PDE09 PDE12 PDE15 BTUh WATTS AMPS SHR BTUh WATTS AMPS SHR BTUh WATTS AMPS SHR BTUh WATTS AMPS SHR 72 9055 522 2.3 0.53 10584 653 3.1 0.49 14112 914 4.2 0.49 17640 1248 5.5 0.47 67 8709 531 2.3 0.72 10179 663 3.1 0.66 13572 928 4.2 0.66 16965 1268 5.6 0.63 62 8062 536 2.4 0.96 9423 670 3.1 0.89 12564 939 4.3 0.
Cooling & Heating Performance PDE 265V - Extended Cooling Performance 75 PDE07 PDE09 PDE12 PDE15 85 OUTDOOR DRY BULB TEMP. (DEGREES F AT 40% R.H.) 95 105 INDOOR WET BULB TEMP. (DEGREES F AT 80 F D.B.) 72 62 72 67 62 72 67 62 72 67 BTUh 9055 8709 8062 8624 8131 7500 8285 110 67 62 72 67 62 7700 6815 7762 6892 6075 6907 5944 5251 758 WATTS 522 531 536 569 575 582 640 640 640 692 691 693 755 755 AMPS 2 2 2 2.1 2.1 2.2 2.4 2.40 2.4 2.6 2.6 2.6 2.
Electric Heat Data Electric Heat Data PDE07K0 HEATER WATTS PDE/PDH07K PDE/PDH07R 0 Kw 2000 1635 3000 2450 230/208 230 208 230 208 HEATING BTUh 0 6824 5580 10236 8360 6824 10236 HEATING CURRENT (AMPS) 0 8.9 7.9 13.2 12.2 7.6 11.4 MINIMUM CIRCUIT AMPACITY 4.0 11.4 10.0 16.8 15.6 9.6 14.
ELECTRICAL RATING TABLES WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. All electrical connections and wiring MUST be installed by a qualified electrician and conform to the National Electrical Code and all local codes which have jurisdiction. Failure to do so could result in serious personal injury or death. NOTE: Use Copper Conductors ONLY. Wire sizes are per NEC, check local codes for overseas applications.
Model Heater kW Power Cord Kit Voltage Amperage Receptacle PDE07K 0.0 PXPC23000 230/208 15 NEMA.6-15r PDE/PDH07K 2.0 PXPC23015 230/208 15 NEMA.6-15r 3.0 STD 230/208 20 NEMA.6-20r PDE09K 0.0 PXPC23000 230/208 15 NEMA.6-15r PDE/PDH09K 2.0 PXPC23015 230/208 15 NEMA.6-15r 3.0 STD 230/208 20 NEMA.6-20r 5.0 PXPC23030 230/208 30 NEMA.6-30r PDE12K 0.0 PXPC23000 230/208 15 NEMA.6-15r PDE/PDH12K 2.0 PXPC23015 230/208 15 NEMA.6-15r 3.0 STD 230/208 20 NEMA.
TO CHASSIS JUNCTION STRAIGHT CONNECTOR WALL CONNECTION 4.0 IN. JUNCTION BOX GROUND SCREW GROUND WIRE HARNESS EXPOSE WIRES (1.0 IN.) 18.0 IN. JUNCTION BOX COVER COVER SCREWS FRP033 TRIM HARNESS TO LENGTH LEADING SIDE FOR WIRE HARNESS INSERTION STRIP WIRE ENDS (0.5 IN.) LOCKNUT SPACER TO WALL JUNCTION CHASSIS JUNCTION BOX FRP032 SPACER 3. Route the cut ends of harness through the conduit connector conduit sleeve.
Remote Control Thermostat Installation Install Thermostat To control the unit with a wall mounted thermostat follow the steps below: 1. Unplug the unit before doing any work. 2. With the front.cover removed locate the dip switches located below the Smart Center control panel. Switch Dip switch 2 to the up on 'ON' position. 1. Approximately 5 ft. from the 2. Close to or in a frequently used room, preferably on an inside wall. 3. Remove the low voltage terminal block from the unit. 3.
Desk Control Terminals The Friedrich PD model PTAC has built-in provisions for connection to an external switch to control power to the unit. The switch can be a central desk control system or even a normally open door switch. For desk control operation connect one side of the switch to the D1 terminal and the other to the D2 terminal. Whenever the switch closes the unit operation will stop. NOTE: The desk control system and switches must be supplied.
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 specifically designed control software for the PTAC industry Friedrich has accomplished what other Manufacturer’s have only attempted – a quiet, dependable, affordable and easy to use PTAC. Below is a list of standard features on every Friedrich PTAC and their benefit to the owner.
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DIGITAL CONTROL DIAGNOSTICS The chart below lists malfunctions and their description.
MALFUNCTION ANALYSIS No power supply Switch is at the OFF position; or socket and plug is loosened; or power wire has malfunction; or power failure Fuse is burned out Replace the fuse Supply voltage is too low Inspect the supply voltage.
Refrigerant is insufficient or leaking A/C on. No cooling (or heating) Call for fan motor but fan motor will not come on Compressor isn’t running (controller is with output) Check leakage, carry out vacuum-pumping after repairing leakage and charge refrigerant according to requirements Refrigeration system is blocked Check whether the system is blocked by observing the condensation of the evaporator and the pressure value of the high pressure manometer, and then take measures to deal with the system.
Protector is activated due to overheating of the compressor Compressor is ON-OFF frequently Refrigerant is insufficient or super abundance Adjust the quantity of the refrigerant Capillary is blocked and the suction temperature is rising Replace capillary The compressor can run smoothly or is stuck. The air discharge valve is damaged. Replace the compressor Protector has malfunction Use the multimeter to check whether the contact point of the compressor is conducted at the timer of non-subheating.
COMPONENTS TESTING BLOWER / FAN MOTOR A single phase permanent split capacitor motor is used to drive the evaporator blower and condenser fan. A self-resetting overload is located inside the motor to protect against high temperature and high amperage conditions. WARNING ELECTRIC SHOCK HAZARD Disconnect power to the unit before servicing. Failure to follow this warning could result in serious injury or death. BLOWER / FAN MOTOR TEST 1. Make sure the motor has cooled down. 2.
COMPONENTS TESTING (Continued) HEATER ELEMENTS AND LIMIT SWITCHES’ SPECIFICATIONS All heat pumps and electric heat models are equipped with a heating element and a limit switch (bimetal thermostat). The limit is in series with the element and will interrupt the power at a designed temperature. Should the blower motor fail, filter become clogged or airflow be restricted etc., the high limit switch will open and interrupt the power to the heater before reaching an unsafe temperature condition.
REFRIGERATION SEQUENCE OF OPERATION A good understanding of the basic operation of the refrigeration system is essential for the service technician. Without this understanding, accurate troubleshooting of refrigeration system problems will be more difficult and time consuming, if not (in some cases) entirely impossible. The refrigeration system uses four basic principles (laws) in its operation they are as follows: 1. “Heat always flows from a warmer body to a cooler body.” 2.
R-410A SEALED REFRIGERATION SYSTEM REPAIRS IMPORTANT SEALED SYSTEM REPAIRS TO COOL-ONLY MODELS REQUIRE THE INSTALLATION OF A LIQUID LINE DRIER. SEALED SYSTEM REPAIRS TO HEAT PUMP MODELS REQUIRE THE INSTALLATION OF A SUCTION LINE DRIER. EQUIPMENT REQUIRED: 1. Voltmeter 9. 2. Ammeter 10. Low Pressure Gauge - (30 - 200 lbs.) 3. Ohmmeter 11. Vacuum Gauge - (0 - 1000 microns) 4. E.P.A. Approved Refrigerant Recovery System 12.
Method Of Charging / Repairs The acceptable method for charging the RAC system is the Weighed in Charge Method. The weighed in charge method is applicable to all units. It is the preferred method to use, as it is the most accurate. The weighed in method should always be used whenever a charge is removed from a unit such as for a leak repair, compressor replacement, or when there is no refrigerant charge left in the unit. To charge by this method, requires the following steps: 1.
After the unit has run 10 to 15 minutes, check the gauge pressures. Gauges connected to system with an undercharge will have low head pressures and substantially low suction pressures. Improper air flow over the evaporator coil may indicate some of the same symptoms as an over charged system. An overcharge can cause the compressor to fail, since it would be “slugged” with liquid refrigerant. The charge for any system is critical.
HERMETIC COMPONENTS CHECK WARNING WARNING BURN HAZARD Proper safety procedures must be followed, and proper protective clothing must be worn when working with a torch. CUT/SEVER HAZARD Be careful with the sharp edges and corners. Wear protective clothing and gloves, etc. Failure to follow these procedures could result in moderate or serious injury. Failure to do so could result in serious injury. METERING DEVICE Capillary Tube Systems All units are equipped with capillary tube metering devices. 3.
REVERSING VALVE DESCRIPTION/OPERATION WARNING ELECTRIC SHOCK HAZARD Disconnect power to the unit before servicing. Failure to follow this warning could result in serious injury or death. of the system. The pilot section of the valve opens and closes ports for the small capillary tubes to the main valve to cause it to shift. NOTE: System operating pressures must be near normal before valve can shift. The Reversing Valve controls the direction of refrigerant flow to the indoor and outdoor coils.
When sluggish or stuck in the mid-position, part of the discharge gas from the compressor is directed back to the suction side, resulting in excessively high suction pressure. Touch Test in Heating/Cooling Cycle WARNING Should the valve fail to shift from coooling to heating, block the air flow through the outdoor coil and allow the discharge pressure to build in the system. Then switch the system from heating to cooling.
6. 7. Protect new valve body from heat while brazing with plastic heat sink (Thermo Trap) or wrap valve body with wet rag. Fit all lines into new valve and braze lines into new valve. WARNING EXPLOSION HAZARD The use of nitrogen requires a pressure regulator. Follow all safety procedures and wear protective safety clothing etc. Failure to follow proper safety procedures could result in serious injury or death. 8. 9.
WARNING BURN HAZARD Certain unit components operate at temperatures hot enough to cause burns. Proper safety procedures must be followed, and proper protective clothing must be worn. In a single phase PSC compressor motor, the highest value will be from the start to the run connections (“S” to “R”). The next highest resistance is from the start to the common connections (“S” to “C”). The lowest resistance is from the run to common.
COMPRESSOR REPLACEMENT Recommended procedure for compressor replacement 3. After all refrigerant has been recovered, disconnect suction and discharge lines from the compressor and remove compressor. Be certain to have both suction and discharge process tubes open to atmosphere. 4. Carefully pour a small amount of oil from the suction stub of the defective compressor into a clean container. 5.
SPECIAL PROCEDURE IN THE CASE OF MOTOR COMPRESSOR BURNOUT WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Failure to do so may result in personal injury, or death. WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure. Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants. Failure to follow these procedures could result in serious injury or death.
TROUBLESHOOTING CHART - COOLING REFRIGERANT SYSTEM DIAGNOSIS COOLING PROBLEM LOW SUCTION PRESSURE PROBLEM PROBLEM PROBLEM HIGH SUCTION PRESSURE LOW HEAD PRESSURE HIGH HEAD PRESSURE High Load Conditions Low Load Conditions High Load Conditions Low Load Conditions Low Air Flow Across Indoor Coil High Air Flow Across Indoor Coil Refrigerant System Restriction Refrigerant System Restriction Reversing Valve not Fully Seated Undercharged Overcharged Moisture in System Defective Compressor Low
ELECTRICAL TROUBLESHOOTING CHART - HEAT PUMP CAUTION WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. BURN HAZARD Certain unit components operate at temperatures hot enough to cause burns. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Proper safety procedures must be followed, and proper protective clothing must be worn. Failure to do so could result in serious injury or death.
REMOTE WALL THERMOSTAT WIRING DIAGRAM COOL WITH ELECTRIC HEAT LEGEND FOR T-STAT WIRING HARNESS R 24 VAC Power From Unit Y Coil for Cooling W Call for Heat O Reversing Valve Energized in cooling mode GL Call for Low Fan GH Call for High Fan RT6 - Two Speeds Fan T-Stat - Field Provided -- -- -- Field Wiring Jumper Wire THERMOSTAT CONNECTIONS GH R GL Y O W B O Y GL W GH RC C RH C RT6 42 EXT. Disk control SW or Auxillary fan EXT.
REMOTE WALL THERMOSTAT WIRING DIAGRAM HEAT PUMP WITH ELECTRIC HEAT LEGEND FOR T-STAT WIRING HARNESS R 24 VAC Power From Unit Y Coil for Cooling W Call for Heat O Reversing Valve Energized in cooling mode GL Call for Low Fan GH Call for High Fan RT6 - Two Speeds Fan T-Stat - Field Provided -- -- -- Field Wiring Jumper Wire THERMOSTAT CONNECTIONS GH R GL Y O W B O Y GL W GH RC C Electronic Control Board RH C RT6 EXT. Disk control SW or Auxillary fan EXT.
L1 L2 GRD L1 L1 L1 WIRING DIAGRAM RD BK WH GR RD BN RD 5VDC 5VDC 5VDC Thermistors COMP WH BL X6 X5 L1TB X7 RD Auto Reset Limit N3 BN WH PR Fuse Link CAP 4V WIRE COLOR ID COMP = Compressor BL = Blue CAP = Capacitor BN = Brown HTR = Heater BK = Black TB = Terminal Block RD = Red OM = Outdoor Fan Motor WH = White IM = Indoor Fan Motor PR = Purple TRAN = Transformer YL = Yellow RELAY COMM = L.V.
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Configuration Mode Settings Operating Modes !"#$"%&'#$()""*$#+,)#-,*./&)0%1,*#2,3"#0)"#0$#+,44,5$6 !")"#0)"#+,&)#',$$1@4"#,'")0%1*/#;,3"$#+,)#%!"#:3;8#O++M#P"0%M#0*3#-,,4#;,3"$#0)"#0(("$$"3#@:#')"$$1*/#%!"# < # D4"+%G#@&%%,*8 <8# 9+!$4#L#9"%#+,)#!"0%#'&;'M#*,*N!"0%#'&;'M#)"A")$1*/#A04A"#,'")0%1,* 9+!$4 $!!0.# :$M$/+0.#&N"6M$& $!!0.# B/0$%/081&E,%$6+ C$"!&G)4* P? O#N#^*")/1k"3#1*#-,,41*/ ?jP#D? P?G O*4: C$"!OD,,6&".%& 0.#6$P !"#$& C$"!&G)4*&'.
Resistance Table for Air Indoor Temperature Sensor Temp. F! Resistance kȍ! " Temp. F! Resistance kȍ! " Temp. F! Resistance kȍ! " Temp. F! Resistance kȍ! -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 138.100 128.600 121.600 115.000 108.700 102.900 97.400 92.220 87.350 82.750 78.430 74.350 70.500 66.880 63.460 60.230 57.180 54.310 51.590 49.020 46.600 44.310 42.140 40.090 38.150 36.320 34.580 32.940 31.380 29.900 28.510 27.
Resistance Table for Frost Protection Indoor and Outdoor Temperature Sensors Temp. F! -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 48 Resistance " kȍ! 181.400 171.400 162.100 153.300 145.000 137.200 129.900 123.000 116.500 110.300 104.600 99.130 94.000 89.170 84.610 80.310 76.240 72.410 68.790 65.370 62.130 59.080 56.190 53.460 50.870 48.420 46.110 43.920 41.840 39.870 38.010 36.240 34.570 32.980 31.470 30.040 28.680 27.390 26.
Friedrich Air Conditioning Company 10001 Reunion Place, Suite 500 San Antonio, TX 78216 800.541.6645 www.friedrich.com PD-SERIES PACKAGED TERMINAL AIR CONDITIONERS LIMITED WARRANTY SAVE THIS CERTIFICATE. It gives you specific rights. You may also have other rights which may vary from state to state and province to province. In the event that your unit needs servicing, contact your nearest authorized service center.
17 36 50 1 22 16 54 53 24 36 45 2 44 37 25 23 21 41 26 4 40 18 9 5 48 8 50 51 35 38 52 6 20 12 34 43 19 49 42 27 32 33 3 46 29 31 30 55 13 57 56 7 11 47 28 10 39 15 14 2011 PTAC EXPLODED VIEW
PDE15R5SF PDE15K5SF PDE12R3SF PDE12K3SF PDE09R3SF PDE09K3SF PDE07R3SF PDE07K3SF 2011 PTAC PARTS LIST - PDE MODELS Ref.
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FRIEDRICH AIR CONDITIONING CO. 10001 Reunion Place, Ste. 500, San Antonio, TX 78216 P 210-546-0500 | F 210-546-0731 www.friedrich.com Printed in the U.S.A.
