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Ser vice Manual Single Package V ertical Air Conditioning System For Y ears 2009 and 2008 VPK-ServMan (04-09) *(Electronic Control) Models 9,000 BTU’ s 12,000 BTU’ s 18,000 BTU’ s 24,000 BTU’ .
FRIEDRICH AIR CONDITIONING CO . Post Ofce Box 1540 · San Antonio, T exas 78295-1540 4200 N. Pan Am Expressway · San Antonio, T exas 78218-5212 (210) 357-4400 · F AX (210) 357-4490 www .
1 T able of Contents Important Safety Information .............................................2 Introduction ........................................................................4 V ert-I-Pak Model Number Identication Guide ..................5 Serial Number Identication Guide .
IMPORT ANT SAFETY INFORMA TION The information contained in this manual is intended for use by a qualied 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.
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.
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 specied amperage rating. • Connect to a properly grounded outlet only .
PRODUCT LINE N = VPAK V = VP AK SERIAL NUMBER MONTH MANUF ACTURED 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 MANUF ACTURED LK = 2000 LA = 2001 LB = 2002 LC = 2003 LD = 2004 LE = 2005 LF = 2006 LG = 2007 LH = 2008 LJ = 2009 ELE CTRIC HEA TER SIZE A- Series 0 0 = N o ele ctr ic heat 25 = 2.
VE A/ V HA09 - 24 VEA09K VEA12K VEA18K VEA24K VHA09K VHA12K VHA18K VHA24K COOL IN G D AT A C ooling B tu/ h 9500/9300 1 1800/1 1500 17500/17300 24000 9500/9300 1 1800/1 1500 17500/17300 23500 C ooling P owe r (W ) 880 1093 1882 2526 905 1 124 1882 2474 EE R 10.
* Ope ratio n above th es e li sted tempe ratu re s may re su lt in lower ed per fo rm an ce or u ni t fat i gu e. * Ope ratio n above th es e li sted tempe ratu re s may re su lt in lower ed per fo rm an ce or u ni t fat i gu e.
VE A / VH A 09 -24 VEA09K VEA12K VEA18K VEA24K VHA09K VHA12K VHA18K VHA24K COOLING D A T A C oo li ng B tu/ h 9500/9300 1 1800/1 1500 18000/17800 24000 9500/9300 1 1800/1 1500 18000/17800 23500 C ooling P ow er (W ) 880 1093 2070 2526 905 1 124 2070 2474 EE R 10.
9 VE A - Ex ten de d Coo lin g Pe rf o rman ce OUT DOO R DRY BUL B TEMP . (D EGREES F AT 40% R. H. ) 75 8 5 95 105 1 10 IN DOOR W ET BU LB TEMP .
10 ELECTRICAL REQUIREMENTS W ir e Siz e Uni t MUS T Sample Nameplat e 1 2 05 2 4 COO LING E QUIP MENT FOL LOWIN G ITEMS OU TD OOR GR IL LE INDOO R GRI LLE S A M P L E Elec tr ica l Ra t in g T a ble s 4 1 A 5 1 2 1 A 0 2 0 1 A 0 3 All 208/230v chassis must be hard wir ed with properly sized breaker .
11 CONNECTIONS Remote Thermostat To control the unit with a wall-mounted thermostat: 1) Pull the disconnect switch.
12 CONNECTIONS Desk Control Terminals The Friedrich VERT-I-PAK has built-in provisions for connection to an external switch to control power to the unit.
13 The new Friedrich V ert-I-Pak has state of the art features to improve guest comfort and conserve energy .
14 Lo w fa n Hig h f an Fa n onl y Pow er T emp T emp Co ol Hea t 1 2 3 4 5 6 7 8 O N Electronic C on tro l Con fi gur at io n The ad jus ta bl e control di p switche s are loc at ed at the lowe r left ha nd por tion of the di gi tal Smart Center . The inputs are only visi bl e and a ccessi bl e wi th the fr ont co ver remo ved from the Unit.
15 TEST MODE ( The c ha r .
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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 .
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 .
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, wire d and fully charg ed with R-22.
20 EX AM P LE: Air fl ow re quireme n ts are c al c ul ated as follows : (H a ving a w et c oil creates additional resistance to air fl ow . Th is addit io nal re sis t an ce must be tak en in to c o ns iderati on to obtain accurate air fl ow information.
21 The V ert-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 V ert-I-Pak units are designed for either single speed or two fan speed operation.
CAP ACIT ORS ELECTRIC SHOCK HAZARD W ARNING T urn off electric power before servicing. Discharge capacitor with a 20,000 Ohm 2 W att resistor before handling.
DRAIN P AN V AL VE During the cooling mode of operation, condensate which collects in the drain pan is picked up by the condenser fan blade and sprayed onto the condenser coil.
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 difcult and time consuming, if not (in some cases) entirely impossible.
CUT/SEVER HAZARD W ARNING 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 W ARNING T urn off electric power before service or installation.
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 efciency .
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.
An undercharged system will result in poor performance (low pressures, etc.) in both the heating and cooling cycle. Whenever you service a unit with an undercharge of refrigerant, always suspect a leak.
T roubleshooting a restricted refrigerant system can be difcult. 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.
30 All units are equipped with capillary tube metering devices. Checking for restricted capillary tubes. 1. Connect pressure gauges to unit.
31 NOTE: System operating pressures must be near normal before valve can shift . The Reversing V alve controls the direction of refrigerant ow to the indoor and outdoor coils.
32 Reversing V alve in Heating Mode 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. T urn of f high voltage electrical power to unit.
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 EP A guidelines.
34 Locked rotor voltage (L.R.V .) is the actual voltage available at the compressor under a stalled condition. Disconnect power from unit.
35 Remove the leads from the compressor terminals and set the ohmmeter on the lowest scale (R x 1). T ouch the leads of the ohmmeter from terminals common to start (“C” to “S”).
36 1. Be certain to perform all necessary electrical and refrigeration tests to be sure the compressor is actually defective before replacing.
37 1. 2. 3. 4. 5. ELECTRIC SHOCK HAZARD W ARNING T urn off electric power before service or installation. Failure to do so may result in personal injury , or death. S e a l e d R e f r i g e r a t i on S y s t e m c o n t a i n s r e f r i g er an t and oil under high pressure.
38 R OUTINE MAINTENANCE AIR FIL TER Clean the unit air intake lter at least every 300 to 350 hours of operation. Clean the lters with a mild detergent in warm water and allow to dry thoroughly before reinstalling. Units are to be inspected and serviced by qualied service personnel only .
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 .
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Y es No 24V at t-stat and control wiring? Y es No.
Replace Reversing V alve NO NO YES YES Reversing V alve Stuck YES Replac.
REFRIGERANT SYSTEM DIAGNOSIS COOLING REFRIGERANT SYSTEM DIAGNOSIS HEA TING Lo w Load Conditions High Load Conditions Low Load Conditions High Load Conditions Low Air Flo w Across High Air Flow Across .
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50 Outdoor C.
A CCESSORIES 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-PAK units.
Friedrich Air Conditioning C om pany P.O. Box 1540 San Antonio, TX 78295 2 10 . 35 7. 4 40 0 w ww .f r ied r ic h. co m VERT-I-PAK ® A SERIES SING L E PACKA GE VERT I CAL A IR C O NDITIONERS LIMITED WARRANTY SA VE THIS CE R T IFI CA T E. It giv e s y ou sp ec if ic ri gh t s.
FRIEDRICH AIR CONDITIONING CO . Post Ofce Box 1540 · San Antonio, T exas 78295-1540 4200 N. Pan Am Expressway · San Antonio, T exas 78218-5212 (210) 357-4400 · F AX (210) 357-4490 www .
FRIEDRICH AIR CONDITIONING CO . Post Ofce Box 1540 · San Antonio, T exas 78295-1540 4200 N. Pan Am Expressway · San Antonio, T exas 78218-5212 (210) 357-4400 · F AX (210) 357-4490 www .
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