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TABLE 5

LIQUID LINE SIZE CHARTS

LIQUID LINE SIZING CHART FOR (-)ARL- SERIES

OUTDOOR UNIT

BELOW

INDOOR COIL

TOTAL LINE LENGTH - FEET

100

125

VERTICAL SEPARATION - FEET

Model

024

036

048

Line Size

O.D. (Inch

OD)

1/4*

5/16

3/8

5/16

3/8*

5/16

3/8*

1/2

060

5/16

3/8*

1/2

NOTES: 1.

Example 1:

A 2-ton condensing unit with a total line length of 75 feet with a vertical

separation of 15 feet requires a liquid line size of 3/8".

2. This chart may also be used to size horizontal runs.

Example 2:

A 3-ton condensing unit may

have a total horizontal run of 100 feet if using a 3/8" liquid line.

3. If vertical separation exceeds this chart, use the extended line lengths chart.
4. Always use the smallest liquid line possible to minimum system charge.

LIQUID LINE SIZING CHART FOR (-)ARL- SERIES

OUTDOOR UNIT

BELOW

INDOOR COIL

TOTAL LINE LENGTH - FEET

100

125

VERTICAL SEPARATION - FEET

Model

024

036

048

Line Size

O.D. (Inch

OD)

1/4*

5/16

3/8

5/16

3/8*

5/16

3/8*

1/2

060

5/16

3/8*

1/2

*Standard Line Size

IMPORTANT:

Line sizing by this chart requires a supplemental refrigerant charge. Refer

to charging chart on unit for proper charging with extended line sets.
NOTES: 1.

Example 1:

A 2-ton condensing unit with a total line length of 75 feet with a vertical

separation of 15 feet requires a liquid line size of 5/16".

2. This chart may also be used to size horizontal runs.

Example 2:

A 3-ton condensing unit

may have a total horizontal run of 100 feet if using a 5/16" liquid line.

3. The vertical separation indicated on this chart

CANNOT

be exceeded.

4. Always use the smallest liquid line possible to minimum system charge.

STANDARD REFRIGERANT CHARGE

*Standard Line Size

EXTENDED LINE LENGTHS FOR USE WITH SUPPLEMENTAL

REFRIGERANT CHARGE

Содержание ARL Series

Страница 1: ...92 101691 01 03 SUPERSEDES 92 101691 01 02 AIR COOLED CONDENSING UNITS ARL AND ASL MODEL SERIES INSTALLATION INSTRUCTIONS INDICATES METRIC CONVERSIONS ISO 9001 2000 ...

Страница 2: ...ectrical Wiring 15 Factory Installed Accessories 17 Thermostat Usage 18 Comfort Alert 18 Comfort Alert Diagnostics Troubleshooting Chart 21 22 Field Installed Accessories 23 Service 23 Trouble Shooting 24 Trouble Shooting Chart 27 Wiring Diagrams 28 29 CHECKING PRODUCT RECEIVED Upon receiving unit inspect it for any shipping damage Claims for damage either apparent or concealed should be filed imm...

Страница 3: ...ND ASL ELECTRICAL DATA Model Number Phase Frequency Hz Voltage Volts Compressor Fan Motor FLA Min Circuit Ampacity Amperes Fuse or HACR Circuit Breaker Outdoor Coil Weight Min Amperes Max Amperes Face Area Sq Ft m2 No Rows CFM L s R 410a Oz g Net Lbs kg Shipping Lbs kg Height H Inches Length L Inches Width W Inches ELECTRICAL PHYSICAL DIMENSIONAL DATA RLA LRA ARL 024JAZ 1 60 208 230 10 3 10 3 52 0...

Страница 4: ...ers must consider Outdoor unit location Proper equipment evacuation System refrigerant charge Indoor unit airflow Indoor unit blower speed Supply and return air duct design and sizing System air balancing Diffuser and return air grille location and sizing CORROSIVE ENVIRONMENT The metal parts of this unit may be subject to rust or deterioration if exposed to a corrosive environment This oxidation ...

Страница 5: ...l take presidence Refrigerant piping and wiring should be properly sized and kept as short as possible to avoid capacity losses and increased operating costs Locate the condenser where water run off will 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 Water pouring into the u...

Страница 6: ...DENSING UNITS IMPORTANT These instructions are intended as a guide to securing equipment for wind load ratings of 120 MPH sustained wind load and 3 second 150 MPH gust While this procedure is not mandatory the Manufacturer does recommend that equipment be properly secured in areas where high wind damage may occur STEP 1 Before installing clear pad of any dirt or debris IMPORTANT The pad must be co...

Страница 7: ... 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 FIGURE 2 SCREW LOCATIONS CAUTION R 410A systems operate at higher pressures than R 22 systems Do not use R 22 service equipment or components on R 410A e...

Страница 8: ... or 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 charg...

Страница 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...

Страница 10: ...d 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 sweatin...

Страница 11: ...nd the service valves before applying heat 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 brazing After brazing Use an appropriate heatsink material to cool the joint and remove any flux residue Clamp the TXV bulb securely on the suction line at the 2 ...

Страница 12: ...ARL SERIES OUTDOOR UNIT BELOW INDOOR COIL TOTAL LINE LENGTH FEET 25 50 75 100 125 VERTICAL SEPARATION FEET Model 024 036 048 Line Size O D Inch OD 1 4 25 21 8 5 16 25 39 33 28 23 3 8 25 45 43 41 39 5 16 25 38 29 15 3 8 25 48 45 41 38 5 16 25 26 12 3 8 25 42 37 31 26 1 2 25 50 51 50 49 060 5 16 25 45 27 9 3 8 25 50 65 58 52 1 2 25 50 75 79 78 Standard Line Size IMPORTANT Line sizing by this chart r...

Страница 13: ...t system is totally con trolled by the contractor For this reason the contractor should use only industry recognized procedures The correct air quantity is critical to air conditioning systems Proper operation effi ciency compressor life and humidity control depend on the correct balance between indoor load and outdoor unit capacity Excessive indoor airflow increases the possibility of high humidi...

Страница 14: ...or ambient temperature Adjust the liquid line pressure by either adding refrigerant to raise pressure or removing refrigerant to lower pressure CHARGING UNITS WITH R 410A REFRIGERANT Checking the charge or charging units using R 410A refrigerant differs from those with R 22 The following procedures apply to units with R 410A refrigerant These procedures require outdoor ambient temperature liquid l...

Страница 15: ...e repairing the leak The Clean Air Act pro hibits releasing 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 that proper electrical power from a commercial utility is available at the condensing unit contactor Voltage ranges for operation are shown in Table 6 Power w...

Страница 16: ...in an acceptable latent sensible cooling ratio Refer to the indoor coil furnace or air handler installation instructions for additional infor mation WARNING THE UNIT MUST BE PERMANENTLY GROUNDED FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN SEVERE PERSONAL INJURY OR DEATH O G W2 W C GPL Furnace Interface Control Board Y1 E W1 Model 1F95 CA397Thermostat AC Outdoor Unit W2 Y1 Y2 R C L R B...

Страница 17: ...es to a particular abnormal condition Detailed descriptions of specific ALERT Flash Codes are shown in Figure 5 TRIP LED Red indicates there is a demand signal from the thermostat but no current to the compressor is detected by the module The TRIP LED typically indicates the compressor internal overload protector is open or may indicate missing high voltage supply power to the compressor INTERPRET...

Страница 18: ...NSING UNITS A two stage cooling thermostat is required for proper unit operation In applications where additional latent removal dehumidification is required or desired Rheem recommends the use of the White Rodgers 90 Series thermostat model 1F95 CA397 On demand dehumidification is capable when combined with pre mium ECM indoor products This thermostat provides the following functionality when con...

Страница 19: ... Open Run Circuit 8 Welded Contactor 9 Low Voltage Active protection occurs under the following conditions 1 Flash Code 2 System Pressure Trip Condition Four consecutive compressor protector trips occur where the average run time until trip is between 1 minute and 15 minutes Possible causes Low suction pressure Low pressure switch is open Low system charge Blocked condenser coil Restricted condens...

Страница 20: ...le causes Bad run capacitor Open circuit in compressor start wiring or connections Compressor start winding is damaged Active thermostat reaction The thermostat implements a hard lockout after 3 hours 5 Flash Code 7 Open Run Circuit Condition Open circuit in compressor run wiring or connections Compressor run winding is damaged Active Thermostat Reaction The thermostat implements a hard lockout af...

Страница 21: ...ked damaged 2 Condenser fan is not running Check fan capacitor Check fan wiring and connectors Check fan motor for failure or blockage 3 Return air duct has substantial leakage 1 Low refrigerant charge 2 Evaporator blower is not running Check blower relay coil and contacts Check blower motor capacitor Check blower motor for failure or blockage Check evaporator blower wiring and connectors Check in...

Страница 22: ...ck for compressor contactor failure burned pitted or open Check wiring and connectors between supply and compressor Check for low pilot voltage at compressor contactor coil 4 High pressure switch is open 5 Open circuit in compressor supply wiring or connections 6 Unusually long compressor protector reset time due to extreme ambient temperature 7 Compressor windings are damaged Check compressor mot...

Страница 23: ... the heater is ener gized for at least 12 hours before the compressor is started Disconnect switch on and wall thermostat off IMPORTANT ARL and ASL unit sound wraps are not compatible with field installed crankcase heaters Sound wraps must be removed unless the unit was factory equipped with a crankcase heater LOW AMBIENT CONTROL LAC This component senses compressor head pressure and shuts the con...

Страница 24: ...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...

Страница 25: ...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...

Страница 26: ... difference between saturated temperature and liquid line temperature is the subcooling Subcooling normal range 5 to 14 TABLE 9 TEMPERATURE PRESSURE CHART TEMP R 410A Deg F PSIG 150 140 130 120 110 100 90 80 70 60 0 4 50 5 1 40 10 9 35 14 2 30 17 9 25 22 0 20 26 4 15 31 3 10 36 5 5 42 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 1...

Страница 27: ... 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 coil Clean coil pressure Cooling mode Refrigerant overcharge Correct system charge Outdoor fan not running Rep...

Страница 28: ...28 FIGURE 8 ARL 024 ARL 036 ARL 048 WIRING DIAGRAM ...

Страница 29: ...29 FIGURE 9 ASL 036 WIRING DIAGRAM ...

Страница 30: ...30 FIGURE 10 ARL 060 WIRING DIAGRAM ...

Страница 31: ...31 ...

Страница 32: ...32 CM 1005 ...

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