Friedrich H)A09K25 User Manual

VPSERVMN (4-05)MODELS V(E,H)A09K25*** V(E,H)A09K34*** V(E,H)A09K50*** V(E,H)A12K25*** V(E,H)A12K34*** V(E,H)A12K50*** V(E,H)A18K25*** V(E,H)A18K34*

10Heat AnticipatorsHeat anticipators are small resistance heaters (wired in series with the "W" circuit) and built into most electromechanic

11Typical Electrical & Thermostat Wiring DiagramsVEA/VHA 24KL1L2QUICK DISCONNECTHERM BLUEYELLOWGREENWHITEREDCAPACITORBROWNGREEN BROWNCOMP WIRE HAR

12Typical Electrical & Thermostat Wiring DiagramsG & H Suffi xNOTE: THE DIAGRAM ABOVE ILLUSTRATES THE TYPICAL THERMOSTAT WIRING AND 208 VOLT T

13Typical Electrical & Thermostat Wiring DiagramsA – E Suffi xFOR 208 VOLT MODELS ONLY:MOVE THE WHITE WIRE AS SHOWN BELOW.

14Indoor Blower - Airfl owThe current Vert-I-Pak 9, 12, & 18 use a dual shaft, permanent split capacitor, single speed motor to drive indoor blower

15Checking External Static PressureThe airflow through the unit can be determined by measuring the external static pressure of the system, and consult

16Ductwork PreparationPull the fl ex duct tight. Extra fl ex duct slack can greatly increase static pressureExplanation of chartsChart A is the nominal

17Method Of ChargingThe acceptable method for charging the Vert-I-Pak system is the Weighed in Charge Method. The weighed in charge method is applica

18Overcharged Refrigerant SystemsCompressor amps will be near normal or higher. Noncondensables can also cause these symptoms. To confi rm, remove some

19All units are equipped with capillary tube metering devices.Checking for restricted capillary tubes.1. Connect pressure gauges to unit.2. Start th

2Table of ContentsIntroduction ...3Vert-I-Pak Model Number Identifi cation Guide ..

20Touch Test in Heating/Cooling CycleThe only defi nite indications that the slide is in the mid-po-sition is if all three tubes on the suction side of

21WARNINGDANGER OF BODILY INJURY OR DEATH FROM ELECTRICAL SHOCKWhen working on high voltage equipment - turn the electrical power off before attaching

22Single Phase Resistance TestRemove the leads from the compressor terminals and set the ohmmeter on the lowest scale (R x 1).Touch the leads of the o

23From the supply line on a typical 230 volt circuit, a 115 volt potential exists from the "R" terminal to ground through a possible short i

24Emergency Heat Switch (Defrost Thermostat) Continuity CheckElectric Heat Switch Operation (Heat Pumps Only)The electric heat switch is a dual functi

25VEA09K00 RTA ... 80004910 ...28VEA09K00RTB ... 80004910 ...28VEA09K00RTE ...

26VEA18K50RTG ... 80004920 ...32VEA18K50RTH ... 80004920 ...32VEA24K00RTH ...

27(A - D Suffi x only)

28(A - D Suffi x only)

29(A - D Suffi x only)

3IntroductionThis service manual is designed to be used in conjunction with the installation manuals provided with each air conditioning system compon

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399-18 ELECTRICAL TROUBLESHOOTING CHART — COOLINGLine Voltage available at fan speed switch(on models so equipped)NO COOLINGInsure that Fuses are good

4PRODUCT LINER = RACP = PTACE = EACV = VPAKH = SPLITSERIAL NUMBERDecade ManufacturedJ = 9 K = Not UsedL = 0MONTH MANUFACTUREDA = Jan D = Apr G = Ju

402-TON ELECTRICAL TROUBLESHOOTING CHART — CoolingLine Voltage available at fan speed switch(on models so equipped)NO COOLINGInsure that Fuses are goo

41REFRIGERANT SYSTEM DIAGNOSIS COOLINGTROUBLESHOOTING CHART — COOLINGTROUBLESHOOTING CHART — HEATINGREFRIGERANT SYSTEM DIAGNOSIS HEATING Low Su

42Replace Reversing ValveNONOYESYESELECTRICAL TROUBLESHOOTING CHARTHEAT PUMPReversing Valve StuckYESReplace Solenoid CoilIs the Solenoid Coil Good?Is

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VPSERVMN (4-05)Use Factory Certifi ed Parts.FRIEDRICH AIR CONDITIONING CO.Post Office Box 1540 · San Antonio, Texas 78295-15404200 N. Pan Am Expressway

5VEA/VHA9K-24KVEA09K VEA12K VEA18K VEA24K VHA09K VHA12K VHA18K VHA24KCOOLING DATACooling Btu/h 9500/9300 11800/11500 18000/17800 24000 9500/9300 11800

6Model V(E,H)A09 V(E,H)A12 V(E,H)A18 V(E,H)A24Voltage (V)230 / 208 230 / 208 230 / 208 230 / 208RefrigerantR-22 R-22 R-22 R-22Chassis Width23.125&qu

7*Height includes 2" high duct collar and 5/8" isolators under unit. **Normal Value Dry Coil on High Speed @ .3" ESP.MODELS V(E,H)A09K2

8A good understanding of the basic operation of the refrigeration system is essential for the service technician. Without this understanding, accurate

9Electrical Rating TablesNOTE: Use copper conductors ONLY Wire sizes are per NEC. Check local codes for overseas applicationsRecommended branch cir