Rheem ARL-JEC Series Installation Instructions Manual Download

Page: 39 / 48

Unit Running?

YES

Go to Electrical

Pressure problems?

Checks Flow Chart

High Head Pressure

Low Head Pressure

Low Suction Pressure

Dirty Outdoor Coil

Low on Charge

Dirty Filters

Inoperative Outdoor Fan

Open IPR Valve

Dirty Indoor Coil

Overcharge

Low Ambient Temperature

Inadequate Indoor Air Flow

Recirculation of

Inoperative Compressor

Inoperative Indoor Blower

Outdoor Air

Valves

Non-condensibles

Outdoor Check Valve

Low on Charge

Closed

Higher than Ambient

Restricted Indoor

Air Entering Outdoor Coil

Metering Device

Restricted Indoor

Wrong Outdoor Fan Rotation

Metering Device

Restriction in System

Restricted

Recirculation of

Filter Drier

Indoor Air

Wrong Indoor

Blower Rotation

Inadequate Ducts

Outdoor Check Valve Closed

Restricted Filter Drier

17.4 Cooling Mechanical Checks Flow Chart

Summary of Contents for ARL-JEC Series

Page 1: ...SEDES 92 101691 04 00 AIR COOLED CONDENSING UNITS ARL JEC 16 SEER EQUIPPED WITH THE COMFORT CONTROL2 SYSTEM INSTALLATION INSTRUCTIONS INDICATES METRIC CONVERSIONS ISO 9001 2000 Featuring Earth Friendl...

Page 2: ...THE COMFORT CONTROL2 SYSTEM 17 11 1 Control Description 17 11 2 Comfort Control2 System Control Wiring 18 11 3 Comfort Control2 System ICC Control Operation 18 11 4 Active Compressor Protection Mode...

Page 3: ...SORIES OR DEVICES MAY ADVERSELY AFFECT THE OPERATION OF THE AIR CONDITIONER AND MAY ALSO ENDANGER LIFE AND PROPERTY THE MANUFACTURER DISCLAIMS ANY RESPONSIBILITY FOR SUCH LOSS OR INJURY RESULTING FROM...

Page 4: ...PRESSURES USE APPROPRIATE CARE WHEN USING THIS REFRIGER ANT FAILURE TO EXERCISE CARE MAY RESULT IN EQUIPMENT DAM AGE OR PERSONAL INJURY CAUTION THE COMPRESSOR HAS AN INTERNAL OVERLOAD PROTECTOR UNDER...

Page 5: ...equipment a survey of the structure and a heat gain calculation must be made A heat gain calculation begins by measuring all external surfaces and openings that gain heat from the surrounding air and...

Page 6: ...PANEL AIR DISCHARGE ALLOW 60 1524 mm CLEARANCE TABLE 1 ARL JEC ELECTRICAL DATA Model Number Phase Frequency Hz Voltage Volts Compressor Fan Motor FLA Min Circuit Ampacity Amperes Fuse or HACR Circuit...

Page 7: ...directly on the unit cabinet In coastal areas locate the unit on the side of the building away from the water front Shielding provided by a fence or shrubs may give some protection but cannot violate...

Page 8: ...Unit Applications Clearances below 6 inches will reduce unit capacity and efficiency Do not reduce the 60 inch discharge or the 24 inch service clearances Multiple Unit Applications When multiple con...

Page 9: ...tion instructions 4 0 REFRIGERANT CONNECTIONS All units are factory charged with Refrigerant 410A All models are supplied with service valves Keep tube ends sealed until connection is to be made to pr...

Page 10: ...retard Hoses need to have a service pressure rating of 800 psig Recovery cylinders need to have a 400 psig service pressure rating DOT 4BA400 or DOT BW400 Combustibility At pressures above 1 atmosphe...

Page 11: ...TING LINE SET IS THOROUGHLY CLEANED OF ANY OLD OIL OR DEBRIS 6 0 INDOOR COIL REFER TO INDOOR COIL MANUFACTURER S INSTALLATION INSTRUC TIONS IMPORTANT The manufacturer is not responsible for the perfor...

Page 12: ...No changes are required for expansion valve coils 2 It is recommended to use the smallest liquid line size permitted to minimize the system charge 3 Tables 4 and 5 may be used for sizing horizontal ru...

Page 13: ...0 0 0 0 0 0 0 5 16 7 93 0 0 0 7 2 13 28 8 53 50 15 24 048 3 8 9 53 3 8 9 52 0 0 0 0 0 0 1 2 12 70 0 0 0 0 0 0 3 8 9 52 0 0 0 0 0 0 060 3 8 9 53 1 2 12 70 0 0 0 0 0 0 25 7 62 50 15 24 75 22 86 100 30 4...

Page 14: ...5 8 15 88 Same as Liquid Line Size Table 048 7 8 22 22 3 4 19 05 Same as Liquid Line Size Table 7 8 22 23 Same as Liquid Line Size Table 3 4 19 05 Same as Liquid Line Size Table 060 7 8 22 22 7 8 22 2...

Page 15: ...IMPORTANT Do not braze any fitting with the TEV sensing bulb attached Braze the tubing between the outdoor unit and indoor coil Flow dry nitrogen into a service port and through the tubing while braz...

Page 16: ...tire service procedure The life and efficiency of the equipment is dependent upon the thoroughness exercised by the serviceman when evacuating air and moisture from the system Air in the system causes...

Page 17: ...in lbs 10 14 AWG 35 in lbs Check wire terminations annually Compressor Control K2 Sealed single pole compressor relay switch with optical feedback feature arc detection CAUTION UNIT MAY START SUDDENL...

Page 18: ...wiring reference Section 11 7 Conventional 24VAC Thermostat Control Wiring The Comfort Control2 System requires four 4 control wires for unit operation R 24VAC C 24VAC common 1 Data wire 1 2 Data wir...

Page 19: ...l status codes 1 First Stage Cooling Operation When the ICC receives a command for first stage cooling operation a lower case c is displayed on the dual 7 segment LEDs Lower case c indicates first sta...

Page 20: ...during a fault condition When the ICC detects a condition that could damage the compressor the ICC will enter active protection mode and lockout compressor operation The condition causing active prot...

Page 21: ...y reset 4 Compressor Protector Trip If ICC detects a protector trip it will display a P If protector doesn t reset within 4 hours the ICC display will change to 5 Compressor Protector Code P Protector...

Page 22: ...3 Energizes the unit without a command for unit operation If the 3 minute anti short cycle timer or 30 second minimum run timer is active a flashing c or C is displayed on the dual 7 segment LEDs and...

Page 23: ...mode after displaying stored faults Clear Fault History TEST and SW2 Buttons Clear FAULT HISTORY by pressing both TEST and SW2 button for five 5 sec onds with insulated probes and release The top and...

Page 24: ...tus Possible Cause Troubleshooting Information FLASHING c FLASHING C t Test Mode The ICC is in TEST mode P Protector Trip A command for compressor operation is present but no current is measured to th...

Page 25: ...imes in one compressor call Check for damaged miswired or wrong run capacitor Check for broken wires loose connectors or miswired compressor Check compressor windings for continuity 07 Compressor Open...

Page 26: ...ensor detects an abnormally low or high outdoor ambient temperature Check unit placement If the outdoor unit is in a high temperature area wait until the ambient temperature drops and check sensor rea...

Page 27: ...ash 9 Low control voltage When the L terminal from the outdoor unit is connected to a conventional thermo stat that is L terminal compatible the thermostat display will flash the above codes If the lo...

Page 28: ...Typical Two Stage Thermostat ARL Condensing Unit Y2 C R Y2 Field Installed Line Voltage WIRING INFORMATION Factory Standard ODD R Y1 Y2 G W2 R Y1 C L Y Y BL R BR W R DHM W1 W2 W1 C G HPN Air Handler...

Page 29: ...ays five 5 operational status codes 1 First Stage Cooling Operation When the ICC receives a call for first stage cooling operation a lower case c is displayed on the dual 7 segment LEDs Lower case c i...

Page 30: ...n be reset to restart the system There are five 5 active protection modes 1 Low Pressure Control Lockout The ICC will display a flashing L followed by a flashing 21 when a low pressure control lockout...

Page 31: ...splay a flashing L followed by a flashing 07 when an open start circuit condition occurs Active Protection Code L7 Compressor open run circuit If the ICC detects current in the start circuit without c...

Page 32: ...robes for one 1 second and release When entering and exiting FAULT RECALL mode the top and bottom segments of the dual 7 segment LEDs will illuminate Fault Recall Mode the top and bottom segments on t...

Page 33: ...wire to the contactor terminals 12 2 Grounding A grounding lug is provided near the contactor for a ground wire 12 3 Control Wiring If the low voltage control wiring is run in conduit with the power s...

Page 34: ...low Each ton of cooling requires between 340 and 450 cubic feet of air per minute CFM Duct design and construction should be carefully done System performance can be lowered dramatically through bad p...

Page 35: ...nd indoor coil is ade quate otherwise evacuate the entire system Use the factory charge shown in Table 1 of these instructions or unit data plate Note that charge value includes charge required for 15...

Page 36: ...Communications Air Handler Air Conditioner Furnace Heat Pump Thermostat Indoor Outdoor R R R 1 1 1 2 2 2 C C C These wires need to be connected to each device thermostat indoor air handler and outdoo...

Page 37: ...t the replacement board gets the shared data from the old control The primary way the replacement control gets this information is by the memory card that should be installed on the old control Remove...

Page 38: ...ult history and refer to Diagnostic Chart Note For solid comm LED check comm wiring term bus switches at ICC and AH ctrls Refer to panel cover documentation for Fault Code Troubleshooting Check fault...

Page 39: ...w Recirculation of Inoperative Compressor Inoperative Indoor Blower Outdoor Air Valves Non condensibles Outdoor Check Valve Low on Charge Closed Higher than Ambient Restricted Indoor Air Entering Outd...

Page 40: ...peed of blower or reduce restriction replace air filter High head low vapor pressures Restriction in liquid line expansion device or filter drier Remove or replace defective component Flowcheck piston...

Page 41: ...osis High voltage Power company problem Have problem corrected High head pressure Overcharge Check system charge Dirty heat pump coil Clean coil Faulty or wrong size Replace fan motor heat pump fan mo...

Page 42: ...High pressure switch Low pressure switch Ambient thermostat Solid state protection control or internal thermal sensors Compressor timed off on control or interlock No voltage on line side Blown fuses...

Page 43: ...m out of calibration Customer misuse FLOODED STARTS SYMPTOMS POSSIBLE CAUSES CHECK OR REMEDIES Liquid in the compressor shell Faulty or missing crankcase heater Replace crankcase heater Too much liqui...

Page 44: ...le clockwise superheat settings Valve feeds too much refrigerant Moisture causing valve to stick open Recover refrigerant replace filter with low superheat and higher than drier evacuate system and th...

Page 45: ...ther refrigerant or refrigerant oil flowing position around the circumference of through suction line the suction line Unequal refrigerant flow through Ensure sensing bulb is located evaporator circui...

Page 46: ...dercharge Low Low High Low Low Liquid Restriction Drier Low Low High High Low Low Evaporator Airflow Low Low Low Low Low Dirty Heat Pump High High Low Low High Low Outside Ambient Temperature Low Low...

Page 47: ...47 FIGURE 11 WIRING DIAGRAM FOR 2 3 4 TON 18 0 WIRING DIAGRAMS...

Page 48: ...48 FIGURE 12 WIRING DIAGRAM FOR 5 TON CM 1108...

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