Page 2 - FRIEDRICH AIR CONDITIONING CO.; TECHNICAL SUPPORT
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. TECHNICAL SUPPORT CONTACT INFORMATION
Page 3 - Table of Contents
1 Table of Contents Important Safety Information .............................................2 Introduction ........................................................................4 Vert-I-Pak Model Number Identification Guide ..................5 Serial Number Identification Guide ....................
Page 4 - IMPORTANT SAFETY INFORMATION; PERSONAL INJURY OR DEATH HAZARDS; Your safety and the safety of others are very important.; WARNING; NOTICE
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...
Page 5 - REFRIGERATION SYSTEM HAZARDS:
Do not spray or pour water on the return air grille, discharge air grille, evaporator coil, control panel, • and sleeve on the room side of the air conditioning unit while cleaning. Electrical component malfunction caused by water could result in electric shock or other electrically • unsafe conditi...
Page 6 - PROPERTY DAMAGE HAZARDS; WATER DAMAGE HAZARDS:; INTRODUCTION; IMPORTANT
4 PROPERTY DAMAGE HAZARDS FIRE DAMAGE HAZARDS: Read the Installation/Operation Manual for this air conditioning unit prior to operating. • Use air conditioner on a single dedicated circuit within the specified amperage rating. • Connect to a properly grounded outlet only. • Do not remove ground pron...
Page 7 - Model Identi
PRODUCT LINE N = VPAK V = VPAK SERIAL NUMBER MONTH MANUFACTURED A = Jan D = Apr G = Jul K = Oct B = Feb E = May H = Aug L = Nov C = Mar F = Jun J = Sep M = Dec YEAR MANUFACTURED LK = 2000 LA = 2001 LB = 2002 LC = 2003 LD = 2004 LE = 2005 LF = 2006 LG = 2007 LH = 2008 LJ = 2009 ELECTRIC HEATER SIZE A...
Page 8 - 009 Chassis Specifications
VEA/VHA09-24 VEA09K VEA12K VEA18K VEA24K VHA09K VHA12K VHA18K VHA24K C O O L I N G D A T A Cooling Btu/h 9500/9300 11800/11500 17500/17300 24000 9500/9300 11800/11500 17500/17300 23500 Cooling Power (W) 880 1093 1882 2526 905 1124 1882 2474 EER 10.8 10.8 9.3 9.5 10.5 10.5 9.3 9.5 Sensible Heat Ratio...
Page 9 - 009 Extended Cooling Performance; VEA - Extended Cooling Performance
2009 Extended Cooling Performance * Operation above these listed temperatures may result in lowered performance or unit fatigue. * Operation above these listed temperatures may result in lowered performance or unit fatigue. VEA - Extended Cooling Performance OUTDOOR DRY BULB TEMP. (DEGREES F AT 40% ...
Page 10 - 008 Chassis Specifications
VEA/VHA09-24 VEA09K VEA12K VEA18K VEA24K VHA09K VHA12K VHA18K VHA24K C O O L I N G D A T A Cooling Btu/h 9500/9300 11800/11500 18000/17800 24000 9500/9300 11800/11500 18000/17800 23500 Cooling Power (W) 880 1093 2070 2526 905 1124 2070 2474 EER 10.8 10.8 8.7 9.5 10.5 10.5 8.7 9.5 Sensible Heat Ratio...
Page 11 - 008 Extended Cooling Performance; VHA - Extended Cooling Performance
9 2008 Extended Cooling Performance VEA - 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.) 72 67 62 72 67 62 72 67 62 72 67 62 72 67 62 VEA09 BTUh 11172 10745 9947 10640 10032 9253 10222 9500 8408 9576 8503 74...
Page 12 - ELECTRICAL REQUIREMENTS; Sample Nameplate; SAMP; Electrical Rating Tables; Supply voltage
10 ELECTRICAL REQUIREMENTS Wire Size Unit MUST Sample Nameplate 120524 COOLING EQUIPMENT FOLLOWING ITEMS OUTDOOR GRILLE INDOOR GRILLE SAMP LE Electrical Rating Tables 4 1 A 5 1 2 1 A 0 2 0 1 A 0 3 All 208/230v chassis must be hard wired with properly sized breaker. See nameplate for specific chassis...
Page 13 - Remote Thermostat; Manual Changeover Thermostat
11 REmotE tHERmoStat anD Low VoLtagE ContRoL CONNeCTIONS Remote Thermostat To control the unit with a wall-mounted thermostat: 1) Pull the disconnect switch. 2) Unscrew and remove the control box panel. 3) After selecting which side you want to run your thermostat wire through, run the wires through...
Page 14 - Maximum Wire Length for Desk Control Switch
12 REmotE tHERmoStat anD Low VoLtagE ContRoL CONNeCTIONS (Continued) 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.For desk...
Page 15 - ELECtRonIC ContRoL BoaRD FEatURES; Desk Control Ready
13 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, aff...
Page 16 - Electronic Control Configuration; Factory Dip Switch Configuration; Electronic Control Error Code
14 Low fan High fan Fan only Power Temp Temp Cool Heat 1 2 3 4 5 6 7 8 O N 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...
Page 17 - ELECtRonIC ContRoL ERRoR CoDES DIagnoStICS anD; Diagnostics; ‘Heat’; ‘High Fan’; ‘Low Fan’
15 ELECtRonIC ContRoL ERRoR CoDES DIagnoStICS anD TeST MODe ( Continued) The chart below lists the possible error codes and their description: ErrorCode Code Translation Action Taken by Unit Possible Cause EF “Error Free” - No Codes Stored None Unit Operating Normally 02 An extreme low voltage condi...
Page 19 - VPak ELECtRonIC ContRoL BoaRD anD waLL; CooL moDE ContRoL FEatURES FoR CooL wItH ELECtRIC HEat UnItS
17 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. If ambient indoor temperature is below...
Page 20 - During compressor time delay, electric heat will turn on first.; and not for; HEat PUmP moDE ContRoL FEatURES FoR HEat PUmP wItH ELECtRIC
18 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. If ambient indoor...
Page 21 - ComPonEnt DESCRIPtIon / a-SERIES SPECIFICatIonS; VERT-I-PAK SINGLE PACKAGED VERTICAL AIR CONDITIONERS; REFRIGERATION SYSTEM –; GENERAL CONSTRUCTION –
ComPonEnt DESCRIPtIon / a-SERIES SPECIFICatIonS 19 VERT-I-PAK SINGLE PACKAGED VERTICAL AIR CONDITIONERS 9,000 / 12,000 / 18,000 / 24 K BTUs/h 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. A...
Page 23 - Determining the Indoor CFM: Chart A – CFM; ers
21 The Vert-I-Pak A series units must be installed with a free return air configuration. The table below lists the indoor airflow at corresponding static pressures. All units are rarted at low speed.The Vert-I-Pak units are designed for either single speed or two fan speed operation. For single spee...
Page 24 - CAPACITORS; Capacitor Check with Capacitor analyzer; ComPonEntS tEStIng; BLOWER / FAN MOTOR TEST
CAPACITORS ELECTRIC SHOCK HAZARD WARNING Turn off electric power before servicing. Discharge capacitor with a 20,000 Ohm 2 Watt resistor before handling. Failure to do so may result in personal injury, or death. Capacitor Check with Capacitor analyzer The capacitor analyzer will show whether the cap...
Page 26 - REFRIgERatIon SEqUEnCE oF oPERatIon; Refrigeration Assembly
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 refrigerat...
Page 27 - SERVICE; Servicing / Chassis Quick Changeouts; To Remove the Chassis from the Closet:
SERVICE CUT/SEVER HAZARD WARNING Be careful with the sharp edges and corners. Wear protective clothing and gloves, etc. Failure to do so could result in serious injury. ELECTRIC SHOCK HAZARD WARNING Turn off electric power before service or installation. Extreme care must be used, if it becomes nece...
Page 28 - Refrigerant Charging; SEaLED REFRIgERatIon SYStEm REPaIRS
Refrigerant Charging Proper refrigerant charge is essential to proper unit opera - tion. Operating a unit with an improper refrigerant charge will result in reduced performance (capacity) and/or efficiency. Accordingly, the use of proper charging methods during ser - vicing will insure that the unit...
Page 29 - method of Charging / Repairs
3. Install a process tube to sealed system. 4. Make necessary repairs to system. 5. Evacuate system to 200 microns or less. 6. Weigh in refrigerant with the property quantity of R-22 refrigerant. 7. Start unit, and verify performance. 8. Crimp the process tube and solder the end shut. Proper safety ...
Page 31 - Restricted Refrigerant System
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 restrictio...
Page 32 - mEtERIng DEVICE; Capillary tube Systems; HERmEtIC ComPonEntS CHECk; CHECk VaLVE; CHECK VALVE OPERATION
30 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 valve and...
Page 33 - REVERSIng VaLVE DESCRIPtIon/oPERatIon
31 NOTE: System operating pressures must be near normal before valve can shift . 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 solen...
Page 34 - tEStIng tHE CoIL
32 Reversing Valve in Heating Mode tEStIng tHE 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 lead from rever...
Page 35 - Procedure For Changing Reversing Valve; touch test in Heating/Cooling Cycle
33 8. Pressurize sealed system with a combination of R-22 and nitrogen and check for leaks, using a suitable leak detector. Recover refrigerant per EPA guidelines. 9. Once the sealed system is leak free, install solenoid coil on new valve and charge the sealed system by weighing in the proper amount...
Page 36 - Single Phase Connections; ComPRESSoR CHECkS; Checking the overload
34 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” terminal on the compressor and the othe...
Page 37 - Single Phase Resistance test; GROUND TEST
35 Single Phase Resistance test Remove the leads from the compressor terminals and set the ohmmeter on the lowest scale (R x 1). Touch the leads of the ohmmeter from terminals common to start (“C” to “S”). Next, touch the leads of the ohmmeter from terminals common to run (“C” to “R”). Add values “C...
Page 38 - PROPER HANDLING OF; ComPRESSoR REPLaCEmEnt
36 Recommended procedure for compressor replacement 1. Be certain to perform all necessary electrical and refrigeration tests to be sure the compressor is actually defective before replacing. 2. Recover all refrigerant from the system though the process tubes. PROPER HANDLING OF RECOVERED REFRIGERAN...
Page 40 - ROUTINe MAINTeNANCe; AIR FILTER; COILS AND BASE PAN
38 ROUTINe MAINTeNANCe AIR FILTER Clean the unit air intake filter at least every 300 to 350 hours of operation. Clean the filters with a mild detergent in warm water and allow to dry thoroughly before reinstalling. Units are to be inspected and serviced by qualified service personnel only. Use prop...
Page 41 - FRONT COVER; CONDENSATE DISPOSAL SYSTEM
SLEEVE / DRAIN Inspect the sleeve and drain system periodically (at least yearly or bi-yearly) and clean of all obstructions and debris. Clean both areas with an antibacterial and antifungal cleaner. Rinse both items thoroughly with water and ensure that the drain outlets are operating correctly. Ch...
Page 42 - ELECtRICaL tRoUBLESHootIng CHaRt - CooLIng; NO COOLING OPERATION
ELECtRICaL tRoUBLESHootIng CHaRt - CooLIng 9k BtU, 12k BtU, & 18k BtU NO COOLING OPERATION Insure that Fuses are good and/or that Circuit Breakers are on and voltage is 208/230 Compressor and Fan Motor should now operate See Refrigerant Circuit diagnosis if unit still is not cooling properly Fan...
Page 44 - YES; HEAT PUMP MODE
ELECtRICaL tRoUBLESHootIng CHaRt HEat PUmP Replace Reversing Valve NO NO YES YES Reversing Valve Stuck YES Replace Solenoid Coil Is the Solenoid Coil Good? Is Line Voltage Present at Solenoid Valve? Is Selector Switch set for Heat? SYSTEM COOLS WHEN HEATING IS DESIRED. HEAT PUMP MODE 42
Page 45 - tRoUBLESHootIng CHaRt - CooLIng
REFRIGERANT SYSTEM DIAGNOSIS COOLING REFRIGERANT SYSTEM DIAGNOSIS HEATING 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 Indoor Coil Restriction Outdoor Coil Refrigerant Sys...
Page 53 - ACCeSSORIeS
ACCeSSORIeS 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. Features backlit display and multiple configured modes. DIGITAL REMOTE WALL THERMOSTAT Single stage thermostat, used on VERT-I-...
