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Friedrich 000 BTU'S Service Manual

Vert-i-pak a series single package vertical air conditioning system
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Service Manual

Single Package
Vertical Air Conditioning System
For Years 2009 and 2008
VPK-ServMan (04-09)
A SERIES
*(Electronic Control)
Models
9,000 BTU's
12,000 BTU's
18,000 BTU's
24,000 BTU's

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Table of Contents
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  Summary of Contents for Friedrich 000 BTU'S

  • Page 1: Service Manual

    Service Manual Single Package Vertical Air Conditioning System For Years 2009 and 2008 VPK-ServMan (04-09) A SERIES *(Electronic Control) Models 9,000 BTU’s 12,000 BTU’s 18,000 BTU’s 24,000 BTU’s...
  • Page 2 TECHNICAL SUPPORT CONTACT INFORMATION 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) 357-4490 www.friedrich.com Printed in the U.S.A.
  • Page 3: Table Of Contents

    Important Safety Information ...2 Introduction ...4 Vert-I-Pak Model Number Identification Guide ...5 Serial Number Identification Guide ...5 2009 Models Chassis Specifications/Performance ...6-7 2008 Models Chassis Specifications/Performance ...8-9 Electrical Requirements ...10 Remote Thermostat and Low Voltage Control ...11-12 V-PAK Electronic Control Board Features ...13 Electronic Control Configuration ...14 Electronic Control Error Code Diagnostics/Test Mode ...14-15...
  • Page 4: Important Safety Information

    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. Installation or repairs made by unqualified persons can result in subjecting the unqualified person making such repairs as well as the persons being served by the equipment to hazards resulting in injury or electrical shock which can be serious or even fatal.
  • Page 5 • Never operate the A/C unit with wet hands. • Use air conditioner on a single dedicated circuit within the specified amperage rating. • Use on a properly grounded outlet only. •...
  • Page 6: Introduction

    Failure to follow these instructions can result in fire and minor to serious property damage. WATER DAMAGE HAZARDS: • Improper installation maintenance, or servicing of the air conditioner unit, or not following the above Safety Warnings can result in water damage to personal items or property. •...
  • Page 7: Vert-I-Pak Model Number Identification Guide

    MODEL NUMBER SERIES V=Vertical Series E=Cooling with or without electric heat H=Heat Pump DESIGN SERIES A = 32" and 47" Cabinet NOMINAL CAPACITY A-Series (Btu/h) 09 = 9,000 12 = 12,000 18 = 18,000 24 = 24,000 VOLTAGE K = 208/230V-1Ph-60Hz Serial Number Identifi...
  • Page 8: 2009 Models Chassis Specifications/Performance

    2009 Chassis Specifications VEA/VHA09-24 VEA09K C O O L I N G D A T A Cooling Btu/h 9500/9300 Cooling Power (W) 10.8 Sensible Heat Ratio 0.74 H E A T P U M P D A T A Heating Btu/h COP @ 47°F Heating Power (W) Heating Current (A)
  • Page 9: Extended Cooling Performance

    2009 Extended Cooling Performance VEA - Extended Cooling Performance BTUh 11172 10745 9947 WATTS VEA09 AMPS 0.51 0.69 0.93 BTUh 13877 13346 12355 WATTS VEA12 AMPS 0.49 0.67 BTUh 20580 19793 18323 WATTS 1536 1560 1577 VEA18 AMPS 0.48 0.65 0.88 BTUh 28224...
  • Page 10: 2008 Models Chassis Specifications/Performance

    2008 Chassis Specifications VEA/VHA09-24 VEA09K C O O L I N G D A T A Cooling Btu/h 9500/9300 Cooling Power (W) 10.8 Sensible Heat Ratio 0.74 H E A T P U M P D A T A Heating Btu/h COP @ 47°F Heating Power (W) Heating Current (A)
  • Page 11 2008 Extended Cooling Performance VEA - Extended Cooling Performance BTUh 11172 10745 9947 WATTS VEA09 AMPS 0.51 0.69 0.93 BTUh 13877 13346 12355 WATTS VEA12 AMPS 0.49 0.67 BTUh 21168 20358 18846 WATTS 1536 1560 1577 VEA18 AMPS 0.48 0.65 0.88 BTUh 28224...
  • Page 12: Electrical Requirements

    WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or instal- lation. All electrical connnections 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 can result in personal injury and/or death.
  • Page 13: Remote Thermostat And Low Voltage Control

    CONNeCTIONS RT5 (Two speed fan) Remote Thermostat All Friedrich Vert-I-Pak units are factory configured to be controlled by using a 24V single stage remote wall mounted thermostat. The thermostat may be auto or manual changeover as long as the control configuration matches that of the Vert-I-Pak unit.
  • Page 14: Remote Thermostat And Low Voltage Control

    (see owner’s manual). Desk Control Terminals The Friedrich VERT-I-PAK 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.
  • Page 15: V-Pak Electronic Control Board Features

    ELECtRonIC ContRoL BoaRD FEatURES The new Friedrich Vert-I-Pak has state of the art features to improve guest comfort and conserve energy. Through the use of specifically designed control software, Friedrich has accomplished what other Manufacturer’s have only attempted – a quiet, dependable, affordable and easy to use Vert-I-Pak.
  • Page 16: Electronic Control Configuration

    Electronic Control 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 Unit. Factory Dip Switch Configuration Dip Switch Setting Switches 1-4 ON Switch 5-7 OFF...
  • Page 17: Test Mode

    ONLY Diagnostics The Friedrich Smart Center continuously monitors the VPAK unit operation and will store service codes if certain conditions are witnessed. In some cases the unit may take action and shut the unit off until conditions are corrected. To access the error code menu press the ‘Heat’ and ‘High Fan’ buttons simultaneously for three sec- onds.
  • Page 18: Sequence Of Operation

    Wall Thermostat Connections: • The control is compatible with a standard single stage heat and cool Wall Thermostat. • It is compatible with Friedrich RT4 and RT5 Wall thermostats. • Terminals are: C – Common ground terminal. W – call for heating.
  • Page 19: Heat Units

    VPak ELECtRonIC ContRoL BoaRD anD waLL tHERmoStat SEqUEnCE oF oPERatIon (Continued) CooL moDE ContRoL FEatURES FoR CooL wItH ELECtRIC HEat UnItS Reversing valve: Always de-energized when “Cool” switch is selected on thermostat. Compressor operation: If ambient indoor temperature is above set point temperature depending on t-stat differential and the compressor is not time delayed, turn on compressor.
  • Page 20 VPak ELECtRonIC ContRoL BoaRD anD waLL tHERmoStat SEqUEnCE oF oPERatIon (Continued) HEat PUmP moDE ContRoL FEatURES FoR HEat PUmP wItH ELECtRIC HEat UnItS Reversing valve: Always energized when “Heat” is selected on thermostat. Compressor operation depends on t-stat settings: If ambient indoor temperature is below the set point temperature depending on t-stat differential and the compressor is not time delayed, turn on compressor.
  • Page 21: Component Description

    ComPonEnt DESCRIPtIon / a-SERIES SPECIFICatIonS VERT-I-PAK SINGLE PACKAGED VERTICAL AIR CONDITIONERS All units are factory assembled, piped, wired and fully charged with R-22. Units are ETL listed and carry an ETL label. Units are approved for 0” clearance. All units are factory run-tested to check operation. The 9,12 and 18 K BTUs units are 23 1/8”...
  • Page 22: Checking External Static Pressure

    External Static Pressure External Static Pressure can best be defi ned as the pressure difference (drop) between the Positive Pressure (discharge) and the Negative Pressure (intake) sides of the blower. External Static Pressure is developed by the blower as a result of resistance to airfl...
  • Page 23: Airflow Charts

    EXAMPLE: Measured voltage to unit (heaters) is 230 volts. Measured Current Draw of strip heaters is 11.0 amps. 230 x 11.0 = 2530 2530/1000 = 2.53 Kilowatts 2.53 x 3413 = 8635 Supply Air ° Return Air ° Temperature Rise °...
  • Page 24: Components Testing

    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...
  • Page 25: Components Testing

    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 ther- mostat). 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 air- flow be restricted etc., the high limit switch will open and interrupt the power to the heater before reaching an un-...
  • Page 26: Refrigeration Sequence Of Operation

    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.
  • Page 27: Service

    SERVICE 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. WARNING CUT/SEVER HAZARD Be careful with the sharp edges and corners.
  • Page 28: Sealed Refrigeration System Repairs

    SEaLED REFRIgERatIon SYStEm REPaIRS ANY SEALED SYSTEM REPAIRS TO COOL-ONLY MODELS REQUIRE THE INSTALLATION OF A LIQUID LINE DRIER. ALSO, ANY SEALED SYSTEM REPAIRS TO HEAT PUMP MODELS REQUIRE THE INSTALLATION OF A SUCTION LINE DRIER. EQUIPMENT REQUIRED: 1. Voltmeter 2.
  • Page 29: Method Of Charging

    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...
  • Page 30: Undercharged Refrigerant Systems

    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. Undercharged Refrigerant Systems An undercharged system will result in poor performance (low pressures, etc.) in both the heating and cooling cycle.
  • Page 31: Restricted Refrigerant Systems

    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 restrictions. A partial restriction allows some of the refrigerant to circulate through the system.
  • Page 32: Capillary Tube Systems/Check Valve

    HERmEtIC ComPonEntS CHECk WARNING 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. mEtERIng DEVICE Capillary tube Systems All units are equipped with capillary tube metering devices.
  • Page 33: Reversing Valve Description/Operation

    REVERSIng VaLVE DESCRIPtIon/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 heating cycle only.
  • Page 34: Testing The Coil

    tEStIng tHE CoIL WARNING ELECTRIC SHOCK HAZARD 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. 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.
  • Page 35: Touch Testing Heating/Cooling Cycle

    touch test in Heating/Cooling Cycle 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. Failure to follow these procedures could result in minor to moderate injury. The only definite indications that the slide is in the mid- position is if all three tubes on the suction side of the valve are hot after a few minutes of running time.
  • Page 36: Compressor Checks

    ComPRESSoR CHECkS 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.
  • Page 37: Single Phase Running & Locked Rotor Amperage

    Single Phase Resistance test 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.
  • Page 38: Compressor Replacement

    ComPRESSoR REPLaCEmEnt Recommended procedure for compressor replacement 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. Be certain to perform all necessary electrical and refrigeration tests to be sure the compressor is actually defective before replacing.
  • Page 39 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.
  • Page 40: Routine Maintenance

    ROUTINe MAINTeNANCe WARNING ELECTRIC SHOCK HAZARD Turn off electric power before inspections, maintenances, or service. 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.
  • Page 41 RoUtInE maIntEnanCE (Continued) NOTICE Do not drill holes in the bottom of the drain pan or the underside of the unit. Not following this notice could result in damage to the unit or condensate water leaking inappropriately which could cause water damage to surrounding property.
  • Page 42: Electrical Troubleshooting Chart - Cooling

    ELECtRICaL tRoUBLESHootIng CHaRt - CooLIng 9k BtU, 12k BtU, & 18k BtU Compressor runs but Blower/Fan doesn't Compressor doesn't 24V at t-stat and defective control wiring control wiring? Problems indicated Is Line Voltage present at Motor Leads? Check Capacitor, is Replace Capacitor Capacitor Good? problem indicated.
  • Page 43: 2-Ton Electrical Troubleshooting Chart - Cooling

    ELECtRICaL tRoUBLESHootIng CHaRt - CooLIng Compressor and outdoor Indoor blower runs but fan motor run but indoor outdoor fan motor and blower does not run compressor do not run Defective t-stat 24V at t-stat and 24V at t-stat and defective control wiring control wiring? control wiring? or transformer...
  • Page 44: Electrical Troubleshooting Chart

    ELECtRICaL tRoUBLESHootIng CHaRt Is Line Voltage Present at Solenoid Valve? Is the Solenoid Coil Good? Reversing Valve Stuck Replace Reversing Valve HEat PUmP HEAT PUMP MODE SYSTEM COOLS WHEN HEATING IS DESIRED. Replace Solenoid Coil Is Selector Switch set for Heat?
  • Page 45: Refrigerant System Diagnosis Cooling

    tRoUBLESHootIng CHaRt - CooLIng REFRIGERANT SYSTEM DIAGNOSIS COOLING PROBLEM PROBLEM LOW SUCTION PRESSURE HIGH SUCTION PRESSURE Low Load Conditions High Load Conditions Low Air Flow Across High Air Flow Across Indoor Coil Indoor Coil Refrigerant System Reversing Valve not Restriction Fully Seated Undercharged Overcharged...
  • Page 46: Electrical And Thermostat Wiring Diagram

    CooL wItH ELECtRIC HEat ELECtRICaL & tHERmoStat wIRIng DIagRam VEa 09/12/18 with 2.5 kw, 3.4 kw or 5kw ELECtRIC HEat NOTE: THE DIAGRAM ABOVE, ILLUSTRATES THE TYPICAL THERMOSTAT WIRING FOR TWO SPEED FAN OPERATION. SEE THE UNIT CONTROL PANEL FOR THE ACTUAL UNIT WIRING DIAGRAM AND SCHEMATIC.
  • Page 47: Electric Heat

    HEat PUmP wItH ELECtRIC HEat ELECtRICaL & tHERmoStat wIRIng DIagRam VHa 09/12/18 with 2.5 kw, 3.4 kw or 5kw ELECtRIC HEat NOTE: THE DIAGRAM ABOVE, ILLUSTRATES THE TYPICAL THERMOSTAT WIRING FOR TWO SPEED FAN OPERATION. SEE THE UNIT CONTROL PANEL FOR THE ACTUAL UNIT WIRING DIAGRAM AND SCHEMATIC.
  • Page 48 CooL wItH ELECtRIC HEat ELECtRICaL & tHERmoStat wIRIng DIagRam VEa 24 with 2.5 kw, 3.4 kw or 5kw ELECtRIC HEat...
  • Page 49 HEat PUmP wItH ELECtRIC HEat ELECtRICaL & tHERmoStat wIRIng DIagRam VHa 24 with 2.5 kw, 3.4 kw or 5kw ELECtRIC HEat...
  • Page 50 CooL wItH ELECtRIC HEat ELECtRICaL & tHERmoStat wIRIng DIagRam VEa 24 with 7.5 kw and 10 kw ELECtRIC HEat...
  • Page 51: Electrical And Thermostat Wiring Diagram

    HEat PUmP wItH ELECtRIC HEat ELECtRICaL & tHERmoStat wIRIng DIagRam VHa 24 with 7.5 kw and 10kw ELECtRIC HEat...
  • Page 52: Thermistors Resistance Valves

    RESIStanCE VaLUES FoR tHERmIStoRS on ELECtRonIC ContRoL BoaRD Outdoor Coil Return Air Indoor Coil...
  • Page 53: Accessories

    ACCeSSORIeS WALL PLENUM VPAWP1-8 VPAWP1-14 ARCHITECTURAL LOUVER VPAL2 VPSC2 DIGITAL REMOTE WALL THERMOSTAT Single stage thermostat, used on VERT-I-PAK units. Hard wired with single speed fan. Direct replacement for RT2. DIGITAL REMOTE WALL THERMOSTAT Single stage thermostat. Features high/low fan speed switch. Thermostat is hard wired and can be battery powered or unit powered.
  • Page 54: Warranty

    Friedrich Air Conditioning Company - International Division. Any defective part to be replaced must be made available to FRIEDRICH in exchange for the replacement part. Reasonable proof must be presented to establish the date of install, otherwise the beginning date of this certificate will be considered to be our shipment date plus sixty days.
  • Page 55 TECHNICAL SUPPORT CONTACT INFORMATION 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) 357-4490 www.friedrich.com Printed in the U.S.A.
  • Page 56 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) 357-4490 www.friedrich.com Printed in the U.S.A. VPK-ServMan (04-09)