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Rheem ARL-JEZ 16 Seer Series, Installation Instructions Manual, Page: 33 / 40

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Rheem ARL-JEZ 16 Seer Series Installation Instructions Manual Download Page 33

33

MECHANICAL CHECKS FLOW CHART

Unit Running?

YES

Low Head Pressure

Low Suction Pressure

Open IPR Valve

Dirty Evaporator

Inadequate Airflow

Restricted Filter-drier

NO

Overcharge

Low Ambient Temperature

Inoperative Indoor Blower

Indoor Metering

Device Stuck

Closed

Wrong Condenser Fan Rotation

Pressure problems?

Low on Charge

Dirty Filters

Dirty Condenser Coil

Recirculation of

Condenser Air

Inoperative Compressor

Valves

Low on Charge

Faulty Metering Device

Restriction in System

Restricted Filter-drier

Non-condensibles

Higher than Ambient

Air Entering Condenser

Go to Electrical

Checks Flow Chart

High Head Pressure

Inoperative Outdoor Fan

Restriction in System

Recirculation of

Evaporator Air

Wrong Evaporator

Blower Rotation

Indoor Metering Device

Stuck Open

Inadequate Ducts

Summary of Contents for ARL-JEZ 16 Seer Series

Page 1: ...09 AIR COOLED CONDENSING UNITS ARL JEZ 16 SEER AND ASL JEZ 18 SEER MODELS EQUIPPED WITH THE INTEGRATED COMFORT CONTROL SYSTEM INSTALLATION INSTRUCTIONS INDICATES METRIC CONVERSIONS ISO 9001 2008 Featuring Industry Standard R 410A Refrigerant ...

Page 2: ...ical Wiring 19 Factory Installed Accessories 20 Field Installed Accessories 21 Comfort Control System 21 Status and Diagnostic Description 24 Service 25 General Service Analyzer Charts 26 31 Trouble Shooting 32 Electrical and Mechanical Checks Flow Charts 32 33 System Charge Troubleshooting 34 Trouble Shooting Chart 35 Wiring Diagrams 36 37 CHECKING PRODUCT RECEIVED Upon receiving unit inspect it ...

Page 3: ...ERVICE ACCESS TO ELECTRICAL VALVES ALLOW 24 610 mm CLEARANCE ONE SIDE 27 8 73 mm DIA ACCESSORY KNOCKOUTS VAPOR LINE CONNECTION A 00002 BASE PAN ALLOW 24 610 mm ACCESS CLEARANCE ALTERNATE LINE VOLTAGE ENTRY KNOCKOUT 111 32 34 MM CONNECT THE LINE VOLTAGE CONDUIT TO THE BOTTOM OF THE CONTROL BOX AIR INLETS LOUVERS ALLOW 12 305 mm MIN CLEARANCE 3 SIDES ACCESS PANEL AIR DISCHARGE ALLOW 60 1524 mm CLEAR...

Page 4: ...turn air duct design and sizing System air balancing Diffuser and return air grille location and sizing WARNING THE MANUFACTURER S WAR RANTY DOES NOT COVER ANY DAMAGE OR DEFECT TO THE AIR CONDITIONER CAUSED BY THE ATTACHMENT OR USE OF ANY COMPONENTS ACCES SORIES OR DEVICES OTHER THAN THOSE AUTHORIZED BY THE MANUFACTURER INTO ONTO OR IN CONJUNCTION WITH THE AIR CONDITIONER YOU SHOULD BE AWARE THAT ...

Page 5: ...ngs are offered in some areas These coatings may provide some benefit but the effectiveness of such coating materials cannot be verified by the equipment manufacturer LOCATING UNIT CONDENSER LOCATION Consult local and national building codes and ordinances for special installation requirements Following location information will provide longer life and simplified servicing of the outdoor condenser...

Page 6: ...ing and recreation al spaces of the owner and those spaces of adjoining property To prevent noise transmission the mounting pad for the outdoor unit should not be connected to the structure and should be located sufficient distance above grade to prevent ground water from entering the unit NOTE Tubing installed in walls may cause noise issues UNIT MOUNTING If elevating the condensing unit either o...

Page 7: ...OOLS REQUIRED FOR INSTALLING SERVICING R 410A MODELS Manifold Sets Up to 800 PSIG High side Up to 250 PSIG Low Side 550 PSIG Low Side Retard Manifold Hoses Service Pressure Rating of 800 PSIG Recovery Cylinders 400 PSIG Pressure Rating Dept of Transportation 4BA400 or BW400 CAUTION R 410A systems operate at higher pressures than R 22 systems Do not use R 22 service equipment or components on R 410...

Page 8: ...a mixture of R 410A and nitrogen QUICK REFERENCE GUIDE FOR R 410A R 410A refrigerant operates at approximately 60 higher pressure 1 6 times than R 22 Ensure that servicing equipment is designed to operate with R 410A R 410A refrigerant cylinders are pink R 410A as with other HFC s is only compatible with POE oils Vacuum pumps will not remove moisture from POE oil R 410A systems are to be charged w...

Page 9: ... 4 oz per foot 3 8 6 oz per foot 1 2 1 2 oz per foot OUTDOOR UNIT INSTALLED ABOVE INDOOR COIL Keep the vertical separation between coils to a minimum However the vertical dis tance can be as great as 120 feet with the condensing unit ABOVE the indoor coil Use the following guidelines when installing the unit NOTE If exceeding these measurements the system must be an engineered sys tem OUTDOOR UNIT...

Page 10: ...used to prevent damage If tubing is to be run underground it must be run in a sealed watertight chase Use care in routing tubing and do not kink or twist Use a tubing bender on the vapor line to prevent kinking Route the tubing using temporary hangers then straighten the tubing and install permanent hangers Line must be adequately supported The vapor line must be insulated to prevent dripping swea...

Page 11: ...he suction line at the 2 o clock position with the strap provided in the parts bag Insulate the TXV sensing bulb and suction line with the provided pressure sensitive insulation size 4 x 7 and secure with provided wire ties NOTE TXV SENSING BULB SHOULD BE LOCATED ON A HORIZONTAL SECTION OF SUCTION LINE JUST OUTSIDE OF COIL BOX The service valves are not backseating valves To open the valves remove...

Page 12: ...ent Length Feet m 25 7 62 50 15 24 75 22 86 100 30 48 125 45 72 150 45 72 Minimum Vertical Separation Feet R 410A System Capacity Model 2 Ton 3 8 9 53 3 8 9 53 3 8 9 53 3 8 9 53 3 Ton 4 Ton Liquid Line Connection Size Inch I D Line Size Inch O D 1 4 6 35 19 5 79 N A N A N A N A N A 5 16 7 93 25 8 84 25 7 62 22 6 71 19 5 79 16 4 88 12 3 66 3 8 9 52 25 9 45 30 9 14 29 8 84 27 8 23 26 7 93 25 7 62 5 ...

Page 13: ...Suction Line Size 16 SEER 18 SEER SUCTION LINE SIZE OUTDOOR UNIT BELOW INDOOR COIL R 410A System Capacity Model Line Size Connection Size Inch I D mm Line Size Inch O D mm Outdoor Unit BELOW Indoor Coil Cooling Only Does not apply to Heat Pumps Total Equivalent Length Feet m 5 8 15 88 Same as Liquid Line Size Table 2 Ton 3 4 19 05 3 4 19 05 NA 7 8 22 23 NA 5 8 15 88 Same as Liquid Line Size Table ...

Page 14: ...INAL LEAK TESTING After the unit has been properly evacuated and service valves opened a halogen leak detector should be used to detect leaks in the system All piping within the heat pump evaporator and interconnecting tubing should be checked for leaks If a leak is detected the refrigerant should be recovered before repairing the leak The Clean Air Act prohibits releasing refrigerant into the atm...

Page 15: ...r IMPORTANT Use factory approved charging method as outlined on the next 4 pages to ensure proper system charge CHARGING UNITS WITH R 410A REFRIGERANT Charge for all systems should be checked against the Charging Chart inside the access panel cover IMPORTANT Do not operate the compressor without charge in the system Altitude feet SENSIBLE HEAT CONSTANT SHC ALTITUDE FEET SENSIBLE HEAT CONSTANT SHC ...

Page 16: ... line prior to measurement and use a calibrated clamp on temperature probe or an insulated surface thermocouple CHARGING BY WEIGHT For a new installation evacuation of interconnecting tubing and indoor coil is adequate otherwise evacuate the entire system Use the factory charge shown in Electrical and Physical Data on page 4 of these instructions or on the unit data plate Note that the charge valu...

Page 17: ...Step 1 After gross charging note the designed Sub Cool value The correct sub cooling value is found at the intersection of the Installed system and the outdoor ambient temperature on the Charging Chart located on the inside of the control box cover of the outdoor unit SC from Charging Chart _________ F IMPORTANT Indoor conditions as measured at the indoor coil are required to be 80 F dry bulb for ...

Page 18: ... Installation and commissioning of this equipment is to be preformed by trained and qualified HVAC professionals For technical assistance contact your Distributor Service Coordinator FINISHING UP INSTALLATION Disconnect pressure gauges from pressure ports then replace the pressure port caps and tighten adequately to seal caps Do not over tighten Replace the service valve caps finger tight and then...

Page 19: ...e 7 8 hole in the base panel up to and attached to the pigtails from the bottom of the control box Conduit can be run to the base panel if desired by removing the insulated bushing NOTE Use No 18 AWG solid copper wire at a minimum If the wire length between the thermostat and the unit is more than 100 ft use 16 AWG solid copper wire to avoid excessive voltage drop TABLE 7 System Problem Overcharge...

Page 20: ...noise or bearing wash out The heater is located on the lower half of the compressor shell Its purpose is to drive refrigerant from the compressor shell during low outdoor ambient conditions below 75 F thus preventing damage to the compressor during start up At initial start up or after extended shutdown periods during low outdoor ambient conditions below 75 F make sure the heater is energized for ...

Page 21: ...p insulates the field installed crankcase heater from the soundwrap LOW AMBIENT CONTROL LAC RXAD A03 This component senses compressor head pressure and shuts the condenser fan off when the head pressure drops to approximately 220 PSIG This allows the unit to build a sufficient head pressure at lower ambient in order to maintain system balance and obtain improved capacity Low ambient control should...

Page 22: ... from the indoor unit 24VAC transformer 40 VA minimum C 24VAC Common from the indoor unit 24VAC transformer Y1 Call for unit operation cooling L Communicate flash diagnostic codes to an indoor thermostat that is enabled with an L terminal check service light or similar function FIGURE 3 ICC BOARD FIELD LINE VOLTAGE CONNECTION ST1 COMPRESSOR WIRING CONNECTOR ST2 O D FAN OFM RELAY COMPRESSOR CONTROL...

Page 23: ... or last compressor activa tion the control will display a flashing c and the red Led will activate to solid on Call for Operation Y1 Call The ICC has an on off fan delay of one 1 second The ICC ignores state of LPC for 90 seconds upon compressor start The ICC will cause the compressor to be energized for 30 seconds minimum run time except when TEST button is pushed without a Y1 call Call for Oper...

Page 24: ...is frozen cooling mode 3 Dirty indoor coil or filter cooling mode 4 Indoor blower is not running cooling mode 5 TEV is not operating correctly L21 Lockout Low Pressure Control Trip LPC tripped three consecutive times in same thermostat call 23 High Pressure Control Trip restart the unit after the pressure control automatically re closes Unit will try to restart 3 times in the same thermostat call ...

Page 25: ...en servicing as only one leg of the power supply is broken with the relay 5 Compressor will not run Active Protection After detecting compressor will not run the ICC control will shut the unit down The control will try to restart the unit every 5 minutes for 4 tries After that the ICC will attempt a restart every 20 minutes up to 6 hours 1 Check for damaged miswired or wrong run capacitor 2 Check ...

Page 26: ...d wire feeding unit Correct and complete diagnosis 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 motor Faulty fan blade Replace fan blade or wrong rotation Replace with correct rotation motor Recirculation of air Correct installation Additional Heat Sou...

Page 27: ...ng diagram Improper voltage High voltage Wrong unit Power supply problem Low voltage Wrong unit Power supply problem Wiring undersized Loose connections CONTAMINATION SYMPTOMS POSSIBLE CAUSE CHECK OR REMEDIES Moisture Poor evacuation on installation In each case the cure is the same or during service Recover refrigerant Add filter drier evacuate and re charge High head pressure Non condensibles ai...

Page 28: ... pressure control Replace control Loose wiring Check all control wires Thermostat In supply air stream 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 liquid in system Incorrect piping Check Piping guidelines Overcharge Check and adjust charge SLUGGING SY...

Page 29: ...etting counter Only applicable to TEV with adjustable 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 then nor mal suction pressure recharge Dirt or foreign material causing Recover refrigerant replace filter valve to stick open drier evacuate system an...

Page 30: ...lowing position around the circumference of through suction line the suction line Unequal refrigerant flow through Ensure proper distributor piston is evaporator circuits inserted in RCBA or RCHA coil Ensure sensing bulb is located properly Check for blocked distributor tubes Improper superheat adjustment Replace TEV or adjust superheat only possible with TEV having superheat adjustment Moisture f...

Page 31: ...3 times in the same thermostat call for operation Y 1 before lockout fault L21 1 Unit is low on refrigerant charge 2 Indoor coil is frozen cooling mode 3 Dirty indoor coil or filter cooling mode 4 Indoor blower is not running cooling mode 5 Outdoor coil is frozen heat pump mode 6 Outdoor fan is not running heat pump mode 7 TEV is not operating correctly L 21 Lockout Low Pressure Control Trip LPC t...

Page 32: ...to establish the shortcuts Remember that the chart will help clarify the logical path to the problem ELECTRICAL CHECKS FLOW CHART Unit Running NO NO NO NO NO YES YES YES YES Thermostat Problem Transformer Problem Run Capacitor Compressor Contactor Hi Pressure Control Compressor Winding Open Grounded Capacitor Lo Pressure Control Compressor Time Delay Start Capacitor Potential Relay Go to Mechanica...

Page 33: ...ion Pressure problems Low on Charge Dirty Filters Dirty Condenser Coil Recirculation of Condenser Air Inoperative Compressor Valves Low on Charge Faulty Metering Device Restriction in System Restricted Filter drier Non condensibles Higher than Ambient Air Entering Condenser Go to Electrical Checks Flow Chart High Head Pressure Inoperative Outdoor Fan Restriction in System Recirculation of Evaporat...

Page 34: ...e the solenoid plug from the compressor With the unit running and the thermostat calling for Y2 24VAC at the yellow blue wire large C on the 7 seg ment LED test the voltage output at the plug with a DC voltmeter The reading should be 4 to 18 volts If not unplug the harness from the ICC harness and check voltage at the pins of the ICC harness The ICC will not power the sole noid if the compressor i...

Page 35: ...re Cooling mode Refrigerant overcharge Correct system charge Outdoor fan not running Repair or replace Air or non condensibles in system Recover refrigerant evacuate recharge Low head high vapor pressures Flowcheck piston size too large Change to correct size piston Defective Compressor valves Replace compressor Incorrect capillary tubes Replace coil assembly Low vapor cool compressor Low indoor a...

Page 36: ...36 FIGURE 5 ARL 025 038 049 WIRING DIAGRAM ...

Page 37: ...37 FIGURE 6 ARL 061 JEZ ASL 024 JEC ASL 025 JEZ ASL 036 JEC ASL 037JEZ WIRING DIAGRAM ...

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Page 40: ...40 CM 0213 ...

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