Friedrich PZE12K3SB - Manuals

6 PB • REFRIGERATION SYSTEM REPAIR HAZARDS: • Use approved standard refrigerant recovering procedures and equipment to relieve high pressure before opening system for repair. • Do not allow liquid refrigerant to contact skin. Direct contact with liquid refrigerant can result in minor to moderate inj...

7 PB INTRODUCTION Operation of Equipment in During Construction • OPERATION OF EQUIPMENT MUST BE AVOIDED DURING CONSTRUCTION PHASES WHICH WILL PRODUCE AIRBORNE DUST OR CONTAMINATES NEAR OR AROUND AIR INTAKE OPENINGS: • Wood or metal framing; • Dry walling or sheathing, • Spackling or applying joint ...

8 PB INTRODUCTION IMPORTANT: It will be necessary for you to accurately identify the unit you are servicing, so you can be certain of a proper diagnosis and repair. Figure 103 This service manual is designed to be used in conjunction with the installation and operation manuals provided with each air...

9 PB INTRODUCTION Serial Number Reference Guide Figure 104 YEAR OF MANUFACTURE 17 = 2017 18 = 2018 19 = 2019 20 = 2020 21 = 2021 22 = 2022 MONTH OF MANUFACTURE 01 = JANUARY 02 = FEBRUARY 03 = MARCH 04 = APRIL 05 = MAY 06 = JUNE 07 = JULY 08 = AUGUST 09 = SEPTEMBER 10 = OCTOBER 11 = NOVEMBER 12 = DEC...

10 PB INTRODUCTION Product Features 19 Product 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.M...

12 PB SPECIFICATIONS General Specifications 7-9k Electric Heat Figure 201 (General Specs) PZE Series with Electric Heat PZE07K PZE09K PZE09R PERFORMANCE DATA: Cooling Btu 7200/6800 9600/9400 9200 Cooling Watts 600/565 815/800 800 Energy Efficiency Ratio, EER 12.0 11.8/11.8 11.5 Heater Size (kW) 3.6 ...

13 PB SPECIFICATIONS General Specifications 7-9k Heat Pump Models PTAC Heat Pump models PZH07K PZH09R PZH09R PERFORMANCE DATA:Cooling Btu 7200/6800 9600/9400 9200 Cooling Watts 600/565 815/800 800 Energy Efficient Ratio, Eer 12.0/12.0 11.8/11.8 11.5 Reverse Heating Btu 6400/6300 8500/8200 8500 Heati...

14 PB SPECIFICATIONS General Specifications 12-15k Electric Heat PTAC Electric Heat models PZE12K PZE12R PZE15K PERFORMANCE DATA: Cooling Btu 12000/11800 12000 14500/14300 Cooling Watts 1050/1035 1130 1420/1400 Energy Efficiency Ratio, EER 11.4/11.4 10.6 10.2/10.2 Heater Size (kW) 3.6 3.6 5.0 Moistu...

15 PB SPECIFICATIONS General Specifications 12-15k Heat Pump PTAC Heat Pump models PZH12K PZH12R PZH15K PERFORMANCE DATA:Cooling Btu 12000/11800 12000 14500/14300 Cooling Watts 1050/1035 1130 1420/1400 Energy Efficient Ratio, Eer 11.4/11.4 10.6 10.2/10.2 Reverse Heating Btu 11000/10800 11400 13600/1...

17 PB SPECIFICATIONS Electrical Data 13 FUSE/CIRCUIT BREAKER Use ONLY type and size fuse or H V AC / R circuit breaker indicated on unit’s rating plate. Proper current protection to the unit is the responsibility of the owner. NOTE: A time delay fuse is provided with 265V units. GROUNDING Unit MUST ...

18 PB SPECIFICATIONS Electrical Data 14 TABLE 2 MODEL HEATER kW Power Cord Kit Voltage Amperage Receptacle PZE / PZH07K 3.6 STD 230/208 20 NEMA 6-20r PZE / PZH09K 3.6 STD 230/208 20 NEMA 6-20r PZE / PZH12K 3.6 STD 230/208 20 NEMA 6-20r PZE / PZH15K 5.0 STD 230/208 30 NEMA 6-30r PZE / PZH09R 3.6 STD ...

20 PB OPERATION Function and Control Buttons and Display 1) Buttons There are ON/OFF, UP, DOWN, HEAT, COOL, CONSTANT FAN and fan speed of HIGH, LOW, AUTO buttons. 1. ON/OFF: Press to turn power on or off to the unit. 2. COOL, HEAT: choose the mode of operation 3. HIGH, LOW, AUTO: choose the fan spee...

21 PB OPERATION Function and Control 2) Heating Mode Working condition and process for heating: When T1 ≤ Ts -2 ° F(1°C), the unit is running in heating mode. Heat pump or electric heating will start depending on the ambient temperature condition or the heating priority setting (#4 DIP SWITCH, ON- f...

22 PB OPERATION Function and Control Special Function 1) Advanced Settings Fahrenheit / Centigrade display Fahrenheit and Centigrade display mode can be switched over by holding the UP and DOWN two buttons at the same time for 3 sec. Setting Temperature Range Hold UP and HIGH fan speed buttons at th...

23 PB OPERATION Digital Control User Input Configuration The adjustable control dip switches are located at the front portion of the digital Smart Center. The inputs are only visible and accessible with the front cover removed from the PTAC. 1. Switch 1-Reserved. 2. Switch 2-Heat pump enable/disable...

24 PB OPERATION Digital Control The unit is factory configured to display all temperatures in degrees Fahrenheit (°F). To switch to degrees Celsius, press the “UP” and “DOWN” buttons simultaneously for three seconds. The display will switch to C degrees. To revert back to °F, press the “UP” and “DOW...

25 PB OPERATION General Knowledge Sequence Of Refrigeration 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...

26 PB OPERATION Refrigerant System Diagram (1)Cooling + Heat Pump + Auxiliary Electric Heater (2) Cooling + Electric Heater COOLED AIR OUTDOOR COILS HOT DISCHARGED AIR CAPILLARY AXIAL FAN COMPRESSOR HEATING MODE COOLING MODE NOTES: REFRIGERANT FLOW DIRECTION CENTRIFUGAL OR CROSS FAN HOT AIR INDOOR C...

27 PB INSTALLATION PTAC Installation Recommendations 5 PTAC Installation Recommendations For proper PTAC unit performance and maximum operating life refer to the minimum installation clearances below: Figure 1 PTAC units should be installed no closer than 12" apart when two units are side by sid...

28 PB INSTALLATION Wall Sleeve Installation Instructions (PDXWS) 6 Wall Sleeve Installation Instructions ( PDXWSA) NOTE: Insure that the unit is only installed in a wall structurally adequate to support the unit including the sleeve, chassis and accessories If the sleeve projects more than 8" in...

29 PB INSTALLATION Alternate Wall Installations 7 Alternate Wall Instalations Figure 4 Panel Wall Figure 6 Curtain Wall FRP004 FRP006 Figure 5 Frame and Brick Veneer Figure 7 Block and Brick Veneer FRP005 FRP007 NOTE: Follow all wall system manufacturer installation instructions. For sunrooms and mo...

30 PB INSTALLATION Alternate Wall Installations 8 13-¾ " Figure 8 Wall Sleeve Attachment NOTE: The Wall Sleeve must be horizontally level (side-to-side) and pitched 1/4 bubble to the outside when installed in an opening. The mounting hole locationshould be approximately 2-4” from the top and bot...

31 PB INSTALLATION Alternate Wall Installations 9 5. Drill two 3/16" holes through each side of the sleeve approximately 4" from top and 4" from bottom of sleeve. Screw four #10 x 1" screws (included) or appropriate fasteners for your installation, through the holes in the sides of t...

32 PB INSTALLATION PXDR10 Drain Kit Installation 10 PXDR10 Drain Kit Installation Instructions (optional for new construction) NOTE: . Determine whether drain will be located within the wall, on the indoor side, or will drain to the exterior of the building. Follow appropriate instructions below dep...

33 PB INSTALLATION External Drain 11 External Drain (for new construction or unit replacement) When using an external drain system, the condensate is removed through either of two drain holes on the back of the wall sleeve. Select the drain hole which best meets your drainage situation and install t...

34 PB INSTALLATION PXGA Standard Grille 12 PXGA Standard Grille Inst al lation Instructions 1. Remove the center support and weatherboard if still installed in the sleeve. 2. Insert six plastic grommets into the grille openings from the outside of the grille as shown in Figure 13. 3. Insert two #8 x...

35 PB INSTALLATION Chassis Install Preparation 16 Chassis Install Preparation Check to be sure the wall sleeve, extension (if used), grille, and drain kit are installed properly before chassis installation. 1. Remove the weatherboard and center support from the sleeve (if still in place). Be sure an...

36 PB INSTALLATION Chassis Install Preparation 17 CAUTION Unit Damage Hazard Failure to follow this caution may result in equipment damage or improper operation. Failure to remove shipping tape and screw will prevent fresh air vent door from opening and may result in damage to vent door cable. 3. Ca...

37 PB INSTALLATION Chassis Installation 18 Chassis Installation 1. Lift unit level and slide unit into wall sleeve until seal rests firmly against front of wall sleeve. Figure 23 Securing Unit 3. Place tabs over top rail (1) . Push inward at bottom until panel snaps into place (2). 4. Reinstall fron...

38 PB INSTALLATION How To Connect 16 Chassis Install Preparation Check to be sure the wall sleeve, extension (if used), grille, and drain kit are installed properly before chassis installation. 1. Remove the weatherboard and center support from the sleeve (if still in place). Be sure an outdoor gril...

39 PB INSTALLATION Install WRT2 Wireless Programmable Thermostat NOTE: Instructions to install the WRT2 thermostat are included in this service manual. For all other thermostat installation and troubleshooting, refer to the Installation/ Operation Manual and the applicable thermostat Accessory manua...

40 PB INSTALLATION Install WRT2 Wireless Programmable Thermostat Installing the Thermostat The WRT2 thermostat comes in two parts: a receiver unit that is wired to the PTAC unit and a transmitter unit that is installed on the wall and wirelessly communicates with the receiver unit. Mount Receiver Un...

41 PB INSTALLATION Install WRT2 Wireless Programmable Thermostat To control the unit with a wall mounted thermostat follow the steps below: 1. Restore power to the PTAC unit. 2. Under stand-by mode, press the “Cool” and “UP” buttons simultaneously for three seconds, the digital displays character“r”...

42 PB INSTALLATION Install WRT2 Wireless Programmable Thermostat Pair Transmitter and Receiver Unit 1. Insert 2xAA brand name alkaline batteries (included) into the thermostat transmitter. NOTE: Important: Alkaline batteries must be replaced once every 2 years regardless of battery level. Failure to...

43 PB INSTALLATION Install WRT2 Wireless Programmable Thermostat RF PAIRING The RF icon in the top right corner of the LCD shows the RF connection state between transmitter and receiver. (Figure 513) • BLANK: No receiver paired • SOLID: Transmitter and receiver connected • FLASHING: Receiver paired ...

44 PB INSTALLATION Install WRT2 Wireless Programmable Thermostat Mount Transmitter Unit 1. Mount the thermostat transmitter on an inside wall about five feet above the floor in an area that has good circulation but is not directly affected by a supply vent or return. NOTE: .For optimal RF Pairing an...

45 PB INSTALLATION Install WRT2 Wireless Programmable Thermostat INSTALLER SETTINGS HOW TO ENTER • Set thermostat to OFF mode • Hold UP + FAN for 5 seconds HOW TO NAVIGATE • Press UP or DOWN to change setting value • Press MODE to save setting value and proceed to next setting option • Press FAN to ...

46 PB INSTALLATION Install WRT2 Wireless Programmable Thermostat NORMAL OPERATION CHANGING MODE • Press MODE button to initiate mode selection menu • Press MODE button until desired system mode is blinking. After 2 seconds of no button press desired mode is selected CHANGING SET TEMPERATURE • Ensure...

47 PB 27 q Inspect and ensure that all components and accessories have been installed properly and that they have not been damaged during the installation process. q Check the condensate water drain(s) to ensure they are adequate for the removal of condensate water, and that they meet the approval o...

48 PB Coils & Chassis NOTE: Do not use a caustic cleaning agent on coils or base pan. Use a biodegradable cleaning agent and degreaser. The use of harsh cleaning materials may lead to deterioration of the aluminum fins or the coil end plates. The indoor coil and outdoor coils and base pan should...

49 PB TROUBLESHOOTING Basic Troubleshooting function e Insufficient cooling/ heating

51 PB TROUBLESHOOTING Malfunction Analysis Malfunction Possible Reasons How to solve Start Failure power line broken, units without power supply "Check the indicator LED on the LCID power head, and it should be lit up ;If not, push the RESET button, if no volt- age still, but power grid has outp...

54 PB TROUBLESHOOTING Unit Lost Power Figure 701 Check power cord connection. LED on the plug should be lit up green. If not, press the RESET button. If not solved, check voltage in the socket. If the power- cord is broken, replace it.

55 PB TROUBLESHOOTING Control Panel Does Not Work Figure 702 1. Check Power Supply for appropriate voltage. 2. If the power supply voltage is OK, but the control panel does not work, the 24V thermostat could be faulty. Check the ther- mostat. 3. To check the control panel, press and hold the [Cool] ...

56 PB TROUBLESHOOTING Malfunction of Temperature Sensor E2/E3/E4/E5 These 4 errors may be the result of the sensor getting lose or becoming broken. Unplug the power cord, open the electric control box, find the main board, connect these plugs firmly. If the problem persists check the resistance of t...

57 PB TROUBLESHOOTING E4 Function Error If the E4 error appears during electric heating operation, it could mean that the ir outlet has overheated. Check the indoor outlet or inlet for any obstacles that block the air circulation. Check the indoor motor is functioning properly. Check air filter and ...

58 PB TROUBLESHOOTING E8 Function Error In COOLING mode, E8 is defrosting protection, meaning the evaporator is too cold. In HEAT PUMP mode, E8 is evaporator overheat protection. Reasons and solutions: Check if any obstacle blocks the indoor air circulation. Remove obstacles as required. Figure 705 ...

60 PB TROUBLESHOOTING E9 Function Error In COOLING mode, E9 is Refrigerant high pressure protection. Reasons and solutions: Outdoor air circulation is bad. Check if any obstacle blocks the air circulation. Condenser is too dirty. Wash the condenser. Unit installation error. If the wall sleeve is too...

63 PB TROUBLESHOOTING Compressor not running Check the wiring connections. Check the resistance of the compressor. The normal resistance of compressor main winding(black wire to N terminal) is under 10 Ω . NOTE: In order to isolate the compressor windings, the black and white wire will need to be di...

65 PB TROUBLESHOOTING Electric Heater Not Running Indoor unit air circulation is blocked. Remove the obstacle. Thermostat on the heater is cut out. Wait for awhile to see if it can restart. Thermal fuse is broken. Replace heater. Wiring error. Check wiring with the circuit diagram. DIP switch of NO....

67 PB Metering Device - Capillary Tube Systems All units are equipped with capillary tube metering devices. Checking for restricted capillary tubes. 1. Connect pressure gauges to unit. 2. Start the unit in the cooling mode. If after a few minutes of operation the pressures are normal, the check valv...

68 PB COMPONENT TESTING Reversing Valve Description And Operation The Reversing Valve controls the direction of refrigerant flow to the indoor and outdoor coils. It consists of a pressure-operated, main valve and a pilot valve actuated by a solenoid plunger. The solenoid is energized during the heat...

69 PB COMPONENT TESTING Testing The Reversing Valve Solenoid Coil The solenoid coil is an electromagnetic type coil mounted on the reversing valve and is energized during the operation of the compressor in the heating cycle. 1. Turn off high voltage electrical power to unit. 2. Unplug line voltage l...

70 PB NOTE: You must have normal operating pressures before the reversing valve can shift. Check the operation of the valve by starting the system and switching the operation from “Cooling” to “Heating” and then back to “Cooling”. Rapidly cycle. Do not hammer on valve. Occasionally, the reversing va...

71 PB COMPONENT TESTING Touch Test Chart : To Service Reversing Valves DISCHARGE TUBE from Compressor Tube to INSIDE T ube to INSIDE Capillary T ube RIGH T Pilot Capillary T ube Capillary Tube LEF T Pilot SUCTION to Compressor TUBE to Compressor Capillary Tube COI L 14 COIL NORMAL FUNCTION OF VALVE ...

72 PB COMPONENT TESTING Compressor Checks Locked Rotor Voltage (L.R.V.) Test Locked rotor voltage (L.R.V.) is the actual voltage available at the compressor under a stalled condition. Single Phase Connections Disconnect power from unit. Using a voltmeter, attach one lead of the meter to the run “R” ...

73 PB WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. Single Phase Resistance Test Remove the leads from the com...

74 PB R-410A SEALED SYSTEM REPAIR WARNING Refrigeration system under high pressure O service this equipment.R410A systems operate at higher pressures than R22 equipment. Appropriate safe service and handling practicces must be used.Only use gauge sets designed for use with R410A. Do not use standard...

75 PB R-410A SEALED SYSTEM REPAIRS Refrigerant Charging WARNING RISK OF ELECTRIC SHOCK Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenances or service. Failure to do so could result in electric shock, serious injury or death. WARNING HIGH PRESSURE HAZ...

76 PB R-410A SEALED SYSTEM REPAIRS WARNING RISK OF ELECTRIC SHOCK Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenances or service. Failure to do so could result in electric shock, serious injury or death. WARNING HIGH PRESSURE HAZARD Sealed Refrigerat...

77 PB Overcharged Refrigerant Systems Whenever an overcharged system is indicated, always make sure that the problem is not caused by air flow problems. Improper air flow over the evaporator coil may indicate some of the same symptoms as an over charged system. NOTE: Factory sealed units will not be...

78 PB R-410A SEALED SYSTEM REPAIRS Restricted Refrigerant System Troubleshooting a restricted refrigerant system can be difficult. The following procedures are the more common problems and solutions to these problems. There are two types of refrigerant restrictions: Partial restrictions and complete...

79 PB R-410A SEALED SYSTEM REPAIRS Sealed System Method of Charging/ Repairs BURN HAZARD Proper safety procedures must be followed, and proper protective clothing must be worn when working with a torch. Failure to follow these procedures could result in moderate or serious injury. WARNING FREEZE HAZ...

80 PB R-410A SEALED SYSTEM REPAIRS Compressor Replacement WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. WARNIN...

81 PB R-410A SEALED SYSTEM REPAIRS Compressor Replacement -Special Procedure in Case of Compressor Burnout 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...

82 PB R-410A SEALED SYSTEM REPAIRS Replace The Reversing Valve 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 ...

83 PB WIRING DIAGRAMS 7K Cool+ Electric Heat 230 V Figure 801 In ter nal

91 PB INTERACTIVE PARTS VIEWER All Friedrich Service Parts can be found on our online interactive parts viewer. Please click on the link below: Interactive Parts Viewer For Further Assistance contact Friedrich Technical Support at (1-800-541-6645) .

92 PB ACCESSORIES 30 New Construction Accessories PDXWSA PDXWSEXT WALL SLEEVE Galvanized zinc coated steel is prepared in an 11-step process, then powder coated with a polyester finish and cured in an oven for exceptional durability. The wall sleeve is insulated for sound absorption and thermal ef- ...

94 PB APPENDIX Appendix 1 Reference Sheet of Celsius and Fahrenheit Service Manual Installation and Maintenance 52 Fahrenheit display temperature (°F) Fahrenheit (°F) Celsius(°C) Fahrenheit display temperature (°F) Fahrenheit (°F) Celsius(°C) Fahrenheit display temperature (°F) Fahrenheit (°F) Celsi...

95 PB APPENDIX Appendix 2 Resistance Table of thermistors (5K) Temp Resis Temp Resis Temp Resis Temp Resis Temp Resis -33 130100 7 34252 47 10785 57 8275 97 3119 -32 125518 8 33209 48 10499 58 8063 98 3048 -31 121114 9 32202 49 10221 59 7857 99 2980 -30 116881 10 31228 50 9952 60 7657 100 2913 -29 1...

97 PB WARRANTY 31 Friedrich Air Conditioning Co. 10001 Reunion Place, San Antonio, TX 78216 800.541.6645 www.friedrich.com PZ-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 sta...

98 PB Friedrich Air Conditioning Co. 10001 Reunion Place, Suite 500 • San Antonio, Texas 78216 1-800-541-6645 www.friedrich.com TECHNICAL SUPPORT CONTACT INFORMATION CUSTOMER SATISFACTION and QUALITY ASSURANCE Friedrich is a conscientious manufacturer, concerned about customer satisfaction, product ...