Rheem R-410A Manual de usuario Pagina 1

92-101691-02-06SUPERSEDES 92-101691-02-05AIR-COOLED CONDENSING UNITS(-)ARL-JEZ 16 SEER AND (-)ASL-JEZ 18 SEER MODELSEQUIPPED WITH THE INTEGRATED COMFO

10TUBING INSTALLATIONObserve the following when installing correctly sized type “L” refrigerant tubingbetween the condensing unit and evaporator coil:

11TABLE 2SUCTION LINE LENGTH SIZE VS. CAPACITY MULTIPLIER (2-STAGE R-410A)2 Ton3/4" I.D. 3/4" I.D. 7/8" I.D. 7/8" I.D.4 Ton5 TonUn

12TABLE 4LIQUID LINE SIZING (2-STAGE R-410A)Liquid Line SizeOutdoor unit above Indoor Coil (Cooling Only)Total Equivalent Length - Feet25 50 75 100 12

13EVACUATION PROCEDUREEvacuation is the most important part of the entire service procedure. The life andefficiency of the equipment is dependent upon

14CHECKING REFRIGERANT CHARGECharge for all systems should be checked against the Charging Chart inside theaccess panel cover. Before using the chart,

15CHARGING BY WEIGHTFor a new installation, evacuation of interconnecting tubing and evaporator coil isadequate; otherwise, evacuate the entire system

16CONTROL WIRING(See Figure 2)If the low voltage control wiring is run in conduit with the power supply, Class I insu-lation is required. Class II ins

17FACTORY INSTALLED ACCESSORIESHARD START COMPONENTSStart components are factory installed.HIGH AND LOW PRESSURE CONTROLS(HPC OR LPC)Pressure controls

18FIELD INSTALLED ACCESSORIESCOMPRESSOR CRANKCASE HEAT (CCH)While scroll compressors usually do not require crankcase heaters, there areinstances when

19CONTROL DESCRIPTION (SEE FIGURE 3)7-Segment LED• Displays status and diagnostic codes (See Status and Diagnostic Description)• Displays diagnostic/f

2TABLE OF CONTENTSChecking Product Received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2Dimensions . . . . . . . . . .

20Low Volt Fuse• If required replace with 3 A automotive ATC style blade fuseLow Pressure Control (LPC Input – E14)• Low-pressure control is factory i

217 -Segment Display Code Diagnostic Description Status / Possible Cause -Troubleshooting Information 0 Standby Standby - No call for operation c Y

22(*) – Indicates flash code will be an output on the ICC “L” terminal to the indoorthermostat “L” terminal. Unless a diagnostic/fault is manually cle

23GENERAL SERVICE ANALYZER CHARTSCOMPRESSOR OVERHEATINGSYMPTOMS POSSIBLE CAUSE CHECK/REMEDIESHigh superheat Low charge Check system chargeFaulty meter

24SYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIESShort cycling of compressor (cont.) Low charge Check system chargeLow evaporator air flow Dirty coilDirty f

25LOSS OF LUBRICATIONSYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIESCompressor failures Line tubing too long Add oil to the recommended levelLine tubing too

26THERMOSTATIC EXPANSION VALVESSYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIESHigh Superheat, Low Suction Pressure Moisture freezing and blocking valve Reco

27THERMOSTATIC EXPANSION VALVESSYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIESSuperheat is low to normal Unequal evaporator circuit loading Ensure air flow

28Caution – UNIT MAY START SUDDENLY AND WITHOUT WARNING S ol i d red L E D li ght i ndicates a thermostat cal l for uni t operation i s present at t

29TROUBLE SHOOTINGIn diagnosing common faults in the air conditioning system, it is useful to presentthe logical pattern of thought that is used by ex

3FIGURE 1DIMENSIONS AND INSTALLATION CLEARANCESUNIT MODEL NUMBER EXPLANATION(-)ARL – 036 JEZZ-SCROLL COMPRESSORE = EQUIPPED WITH THECOMFORT CONTROL SY

30MECHANICAL CHECKS FLOW CHARTUnit Running?YESLow Head PressureLow Suction PressureOpen IPR Valve Dirty EvaporatorInadequate AirflowRestricted Filter-

SYSTEM CHARGE TROUBLESHOOTINGSUPERHEAT CALCULATION1. Measure the suction pressure at the suction line service valve.2. Convert the suction pressure to

32SYMPTOM POSSIBLE CAUSE REMEDYUnit will not run • Power off or loose electrical connection • Check for correct voltage at contactor in condensing uni

33FIGURE 5(-)ARL, -024, -036, -048 WIRING DIAGRAM

34FIGURE 6(-)ARL-060 JEZ, (-)ASL-024 JEZ, (-)ASL-036 JEZ WIRING DIAGRAM

35

36CM 0610

4GENERALThe information contained in this manual has been prepared to assist in the properinstallation, operation and maintenance of the air condition

5• Frequent washing of the cabinet, fan blade and coil with fresh water will removemost of the salt or other contaminants that build up on the unit.•

6CUSTOMER SATISFACTION ISSUES• The condenser should be located away from the living, sleeping and recreation-al spaces of the owner and those spaces o

7REFRIGERANT CONNECTIONSAll units are factory charged with Refrigerant R-410A. All models are supplied withservice valves. Keep tube ends sealed until

8SPECIFICATION OF R-410A:Application: R-410A is not a drop-in replacement for R-22; equipment designsmust accommodate its higher pressures. It cannot

9The thermostatic expansion valve is specifically designed to operate with R-410A.DO NOT use an R-22 TXV or evaporator. The existing evaporator must b