Friedrich 9 Manuale Utente

Service Manual Single PackageVertical Air Conditioning SystemFor Years 2009 and 2008VPK-ServMan (04-09)*(Electronic Control)Models 9,000 BTU’s12,00

VEA/VHA09-24VEA09K VEA12K VEA18K VEA24K VHA09K VHA12K VHA18K VHA24KCOOLING D A T ACooling Btu/h 9500/9300 11800/11500 18000/17800 24000 9500/9300 1180

9VEA - Extended Cooling PerformanceOUTDOOR DRY BULB TEMP. (DEGREES F AT 40% R.H.)75 85 95 105 110INDOOR WET BULB TEMP

10ELECTRICAL REQUIREMENTSWire SizeUnit MUSTSample Nameplate120524COOLING EQUIPMENTFOLLOWING ITEMSOUTDOOR GRILLEINDOOR GRILLESAMPLEElectrical Rating Ta

11CONNECTIONSRemote ThermostatTo control the unit with a wall-mounted thermostat: 1) Pull the disconnect s

12CONNECTIONS Desk Control TerminalsThe Friedrich VERT-I-PAK has built-in provisions for connecti

13 The new Friedrich Vert-I-Pak has state of the art features to improve guest comfort and conserve energy. Through t

14Low fanHigh fanFan onlyPowerTempTempCoolHeat 1 2 3 4 5 6 7 8ONElectronic Control ConfigurationThe adjustable control dip switches are loca

15TEST MODE (The chart below lists the possible error codes and their description:ErrorCode C

16 Wall Thermostat Connections: • The control is compatible with a standard si

17Reversing valve: Always de-energized when “Cool” switch is selected on thermostat.Compressor operation: If ambient indoor temperature is above se

FRIEDRICH AIR CONDITIONING CO. Post Ofce Box 1540 · San Antonio, Texas 78295-1540 4200 N. Pan Am Expressway · San Antonio, Texas 78218-5212 (210) 35

18Reversing valve: Always energized when “Heat” is selected on thermostat.Compressor operation depends on t-stat settings: If ambient indoor temper

19VERT-I-PAK SINGLE PACKAGED VERTICAL AIR CONDITIONERS 9,000 / 12,000 / 18,000 / 24 K BTUs/h All units

20EXAMPLE: Airfl ow requirements are calculated as follows: (Having a wet coil creates additional resistance to airfl ow. This addit ional resistance mu

21The Vert-I-Pak A series units must be installed with a free return air configuration. The table below lists the indoor airflow at co

CAPACITORS ELECTRIC SHOCK HAZARD WARNINGTurn off electric power before servicing. Discharge capacitor with a 20,000 Ohm 2 Watt resistor before handlin

DRAIN PAN VALVE During the cooling mode of operation, condensate which collects in the drain pan is picked up by the condenser fan blade and sprayed

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

CUT/SEVER HAZARD WARNINGBe careful with the sharp edges and corners. Wear protective clothing and gloves, etc.Failure to do so could result in

 Proper refrigerant charge is essential to proper unit opera-tion. Operating a unit with an improper refrigerant charge will resul

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 refrig

1Table of Contents Important Safety Information ...2 Introduction ...

 An undercharged system will result in poor performance (low pressures, etc.) in both the heating and coo

 Troubleshooting a restricted refrigerant system can be difcult. The following procedures are the more common prob

30  All units are equipped with capillary tube metering devices. Checking for restricted capillary tubes.

31NOTE: System operating pressures must be near normal before valve can shift.  The Reversing Valve contro

32Reversing Valve in Heating Mode  The solenoid coil is an electromagnetic type coil mounted on the reversing valve and is energized

338. Pressurize sealed system with a combination of R-22 and nitrogen and check for leaks, using a suitable leak detector. Recover ref

34Locked rotor voltage (L.R.V.) is the actual voltage available at the compressor under a stalled condition. 

35 Remove the leads from the compressor terminals and set the ohmmeter on the lowest scale (R x 1). Touch the leads of th

36 1. Be certain to perform all necessary electrical and refrigeration tests to be sure

371.2.3.4.5.ELECTRIC SHOCK HAZARD WARNINGTurn off electric power before service or installation.Failure to do so may result in personal injury, or dea

IMPORTANT SAFETY INFORMATIONThe information contained in this manual is intended for use by a qualied service technician wh

38ROUTINE MAINTENANCE AIR FILTER Clean the unit air intake lter at least every 300 to 350 hours of operation. Clean the lters with a mild detergent

SLEEVE / DRAIN Inspect the sleeve and drain system periodically (at least yearly or bi-yearly) and clean of all obstructions and debris. Clean both a

NO COOLING OPERATIONInsure that Fuses are good and/or that Circuit Breakers are on

YesNo24V at t-stat andcontrol wiring?YesNo24V at t-stat andcontrol wiring?NO COOLING OPERATIONBefore

Replace Reversing ValveNONOYESYESReversing Valve StuckYESReplace Solenoid CoilIs the Solenoid Coil Good?Is Li

REFRIGERANT SYSTEM DIAGNOSIS COOLINGREFRIGERANT SYSTEM DIAGNOSIS HEATING Low Load Conditions High Load Conditions Low Load Conditions High L

NOTE: THE DIAGRAM ABOVE, ILLUSTRAT

NOTE: THE DIAGRAM ABOVE, ILLU

46

47

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 co

48

49

50Outdoor CoilReturn AirIndoor Coil

ACCESSORIESDIGITAL REMOTE WALL THERMOSTAT Single stage thermostat. Features high/low fan speed switch. Thermostat is hard wired and can be battery po

Friedrich Air Conditioning Company P.O. Box 1540 San Antonio, TX 78295 210.357.4400 www.friedrich.comVERT-I-PAK® A SERIES SINGLE PACKAGE VERTICAL AI

FRIEDRICH AIR CONDITIONING CO. Post Ofce Box 1540 · San Antonio, Texas 78295-1540 4200 N. Pan Am Expressway · San Antonio, Texas 78218-5212 (210) 35

FRIEDRICH AIR CONDITIONING CO. Post Ofce Box 1540 · San Antonio, Texas 78295-1540 4200 N. Pan Am Expressway · San Antonio, Texas 78218-5212 (210) 35

4PROPERTY DAMAGE HAZARDSFIRE DAMAGE HAZARDS:Read the Installation/Operation Manual for this air conditioning unit prior to operating.•Use air conditi

PRODUCT LINEN = VPAKV = VPAKSERIAL NUMBERMONTH MANUFACTUREDA = Jan D = Apr G = Jul K = OctB = Feb E = May H = Aug L = NovC = Mar F = Jun J = S

VEA/VHA09 -24VEA09K VEA12K VEA18K VEA24K VHA09K VHA12K VHA18K VHA24KCOOLING DATACooling Btu/h 9500/9300 11800/11500 17500/17300 24000 9500/9300 11800/

* Operation above these listed temperatures may result in lowered performance or unit fatigue.* Operation above these