Rheem 018J*Z Page 21 Installation Instructions Manual Download

Page: 21 / 28

MECHANICAL CHECKS FLOW CHART

Unit Running?

YES

Low Head Pressure

Low Suction Pressure

Open IPR Valve

Dirty Evaporator

Inadequate Airflow

Restricted Filter-drier

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

Broken Indoor

Blower Belt

Restriction in System

Recirculation of

Evaporator Air

Wrong Evaporator

Blower Rotation

Indoor Metering Device

Stuck Open

Inadequate Ducts

Summary of Contents for 018J*Z

Page 1: ...T SAFETY INFORMA THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALIFIED LICENSED SERVICE PERSONNEL FOR PROPER INSTALLATION ADJUSTMENT AND OPERATION OF THIS UNIT READ THESE INSTRUCTIONS THOROUGHLY BEFORE ATTEMPTING INSTALLATION OR OPERATION FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN IMPROPER INSTALLATION ADJUSTMENT SERVICE OR MAINTENANCE POSSIBLY RESULTING IN FIRE ELECTRICAL SHOCK PROPERTY ...

Page 2: ...ormance 14 Checking Airflow 14 Checking Refrigerant Charge 15 Electrical Wiring 16 High and Low Pressure Controls HPC or LPC 18 Field Installed Accessories 18 Service 19 Trouble Shooting 20 22 Trouble Shooting Chart 23 Wiring Diagrams 24 26 CHECKING PRODUCT RECEIVED Upon receiving unit inspect it for any shipping damage Claims for damage either apparent or concealed should be filed immediately wit...

Page 3: ... 043 42 000 BTU HR 048 049 48 000 BTU HR 060 60 000 BTU HR DESIGN SERIES L R 410A M R410 2ND DESIGN SERIES N STANDARD EFFICIENCY P HIGH EFFICIENCY REMOTE CONDENSING UNIT TRADE NAME DIMENSIONAL DATA CONDENSING UNIT MODEL ANL 018 19 19 19 25 29 23 33 351 2 401 2 443 8 443 8 443 8 443 8 443 8 243 4 275 8 311 2 311 2 311 2 311 2 311 2 LENGTH H INCHES LENGTH L INCHES WIDTH W INCHES 024 031 030 036 042 ...

Page 4: ...83 1 1 2 19 19 25 25 30 30 17 26 1 6 1 3200 1510 115 3260 205 93 215 97 043DAZ 3 60 460 6 0 44 0 6 9 15 15 17 26 1 6 1 3200 1510 115 3260 205 93 215 97 043JAZ 1 60 208 230 19 9 19 9 109 1 2 27 27 35 35 45 45 17 26 1 6 1 3200 1510 115 3260 205 93 215 97 048CAZ 3 60 208 230 13 7 13 7 83 1 1 2 19 19 25 25 30 30 23 01 2 14 1 3500 1652 145 4111 230 104 3 240 108 9 048DAZ 3 60 460 6 2 41 0 6 9 15 15 23 ...

Page 5: ... side of the building away from the water front Shielding provided by a fence or shrubs may give some protection but cannot violate minimum airflow and service access clearances Elevating the unit off its slab or base enough to allow air circulation will help avoid holding water against the basepan Regular maintenance will reduce the build up of contaminants and help to protect the unit s finish 5...

Page 6: ...l not create a problem with the equipment Position the unit away from the drip edge of the roof whenever pos sible Units are weatherized but can be affected by the following o Water pouring into the unit from the junction of rooflines without protective guttering Large volumes of water entering the condenser while in operation can impact fan blade or motor life and coil damage may occur to a heat ...

Page 7: ...he concrete fastener STEP 2 Center base pan on pad ensuring it is level STEP 3 Using basepad as a guide mark spots on concrete where 4 holes will be drilled see Figure 2 S TABLE 4 DIMENSIONS MODEL NUMBER L W A B C D ANL 018 024 030 APL 018 024 ANL 031 APM 018 375 8 2515 16 15 34 31 2 221 2 ANL 037 043 049 ANL 036 042 048 060 APL 030 036 042 048 060 APM 024 030 036 042 048 060 411 2 2913 16 15 38 3...

Page 8: ...ow 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 SPECIFICATION OF R 410A Application R 410A is not a drop in replacement for R 22 equipment designs must accommodate its higher pressures It cannot be retrofitted into R 22 condens ing units FIGURE 2 SCREW LOCATIONS CAUTION R 410A sys...

Page 9: ...9 R 410A refrigerant cylinders had a dip tube These cylinders should be kept upright for equipment charging Post March 1999 cylinders do not have a dip tube and should be inverted to ensure liquid charging of the equipment Do not install a suction line filter drier in the liquid line A liquid line filter drier is standard on every unit Only manufacturer approved liq uid line filter driers can be u...

Page 10: ...w check piston sizes if the vertical separation does not exceed the values in Table 4 3 Flow Check Piston Coil a The vertical separation can be greater than the value in Table 4 but no more than 120 feet b If the separation height exceeds the Table value reduce the indoor coil flow check piston by two sizes plus one size for additional 10 feet beyond the Table value 4 Expansion Valve Coil a The ve...

Page 11: ... with each other This causes an undesirable heat transfer resulting in capacity loss and increased power consumption The vapor line must be insulated If tubing has been cut make sure ends are deburred while holding in a position to prevent chips from falling into tubing Burrs such as those caused by tubing cutters can affect performance dramatically particularly on small liquid line sizes For best...

Page 12: ...itrogen into a service port and through the tubing while brazing After brazing use an appropriate heatsink material to cool the joint and remove any flux residue The service valves are not backseating valves To open the valves remove the valve cap with an adjustable wrench Insert a 3 16 or 5 16 hex wrench into the stem Back out counterclockwise Replace the valve cap finger tight then tighten an ad...

Page 13: ...ine Size Inch O D Total Minimum Vertical Separation Feet 25 50 75 100 125 150 1 4 25 40 25 9 N A N A 11 2 Ton 3 8ⴖ 5 16 25 50 62 58 53 49 3 8 25 50 75 72 70 68 1 4 23 N A N A N A N A N A 2 Ton 3 8ⴖ 5 16 25 36 29 23 16 9 3 8 25 50 72 70 68 65 1 4 25 N A N A N A N A N A 21 2 Ton 3 8ⴖ 5 16 25 49 38 27 17 6 3 8 25 50 68 65 62 58 5 16 25 50 37 22 7 N A 3 Ton 3 8ⴖ 3 8 25 50 68 63 58 53 5 16 25 23 4 N A ...

Page 14: ...ted if required Allow a minimum of 5 minutes running Before analyzing charge see the instruc tions on the unit service panel rating plate for marking the total charge CHECKING AIRFLOW The air distribution system has the greatest effect The duct system is totally con trolled by the contractor For this reason the contractor should use only industry recognized procedures The correct air quantity is c...

Page 15: ... systems in the cooling mode when an expansion valve is used on the evaporator The service port on the liquid service valve small valve is used for this purpose Read and record the outdoor ambient temperature entering the condensing unit and the liquid line pressure at the service valve the small valve Locate the charg ing chart attached to the unit The correct liquid line pressure will by found b...

Page 16: ...g within the condensing unit 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 venting refrigerant into the atmosphere ELECTRICAL WIRING Field wiring must comply with the National Electric Code C E C in Canada and any applicable local code POWER WIRING It is important tha...

Page 17: ...inimum transformer are required for the control circuit of the condensing unit The furnace or the air handler transformer may be used if sufficient See the wiring diagram for reference Use Table 8 to size the 24 volt con trol wiring WARNING THE UNIT MUST BE PERMANENTLY GROUNDED FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN SEVERE PERSONAL INJURY OR DEATH SOLID COPPER WIRE AWG 3 0 16 14 ...

Page 18: ...m operation below 55 F All heaters are located on the lower half of the compressor shell Its purpose is to drive refrigerant from the compressor shell during long off cycles thus preventing damage to the compressor during start up At initial start up or after extended shutdown periods make sure the heater is ener gized for at least 12 hours before the compressor is started Disconnect switch on and...

Page 19: ...ops below designated levels 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 be used on all equipment oper ated below 65 F ambient OUTDOOR UNIT COVERS Outdoor condensing unit covers are available if the homeowner requests a cover for their unit With the complete model number for the...

Page 20: ...eakers and Recheck Unit Wiring and Connections Condenser Fan Grounded Compressor Internal Overload Open TROUBLE SHOOTING In diagnosing common faults in the air conditioning system it is useful to present the logical pattern of thought that is used by experienced technicians The charts which follow are not intended to be an answer to all problems but only to guide your thinking as you attempt to de...

Page 21: ...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 Broken Indoor Blower Belt Restriction in System Recirculatio...

Page 22: ... 2 0 48 4 5 55 1 10 62 4 15 70 2 20 78 5 25 87 5 30 97 2 35 107 5 40 118 5 45 130 2 50 142 7 55 156 0 60 170 1 65 185 1 70 201 0 75 217 8 80 235 6 85 254 5 90 274 3 95 295 3 100 317 4 105 340 6 110 365 1 115 390 9 120 418 0 125 446 5 130 476 5 135 508 0 140 541 2 145 576 0 150 612 8 DISCHARGE SUCTION SUPERHEAT SUBCOOLING COMPRESSOR PRESSURE PRESSURE AMPS Overcharge High High Low High High Undercha...

Page 23: ... Add refrigerant Registers sweat Low indoor airflow Increase speed 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 size too small Change to correct size piston Incorrect capillary tubes Change coil assembly High head high or normal vapor Dirty outdoor ...

Page 24: ...24 FIGURE 4 SINGLE PHASE WIRING DIAGRAM ...

Page 25: ...25 FIGURE 5 THREE PHASE WIRING DIAGRAM C D Y VOLTAGES ...

Page 26: ...26 FIGURE 6 ...

Page 27: ...27 ...

Page 28: ...28 CM 0908 ...

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