Ingersoll-Rand American Standard 4A7L6018A1000A Installer'S Manual Download Page 26

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11-AC40D1-1E-EN

Troubleshooting

Is contactor

engergized?

(contacts closed)

Compressor fails to start

Contactor check

YES

If applicable, check

TDR input

voltage

Go To: Compressor won’t run

Check for 24 volts AC

across contactor coil

Is voltage

present at

contactor coil?

Replace contactor

Check control

transformer and

control fuse

Is the control

transformer

and fuse good?

Jumper R to Y low

voltage terminals

at thermostat sub

base.

Does the

contactor
energize?

Replace the room

thermostat

Repair or replace

transformer or fuse.

Investigate cause for

failure (possible short in

field wiring)

Repair or replace
connecting wiring

Check ID Low

voltage

transformer

YES

Wait 3 minutes and

check contactor

coil again

Summary of Contents for American Standard 4A7L6018A1000A

Page 1: ...s and labels that are attached to the equipment October 2018 1 11 1 A AC C4 40 0D D1 1 1 1E E E EN N Side Discharge AC Models For coastal applications where units are installed within one 1 mile of salt water epoxy coated models are recommended These models have an 8 week lead time after order E Ep po ox xy y C Co oa at te ed d M Mo od de el l 4A7L6018A1000A 4A7L6024A1000A 4A7L6030A1000A 4A7L6036A...

Page 2: ... pr ro op pe er r p pr ro oc ce ed du ur re es s c ca an n r re es su ul lt t i in n p pe er rs so on na al l i il ll ln ne es ss s o or r i in nj ju ur ry y o or r s se ev ve er re e e eq qu ui ip pm me en nt t d da am ma ag ge e S Sy ys st te em m c co on nt ta ai in ns s o oi il l a an nd d r re ef fr ri ig ge er ra an nt t u un nd de er r h hi ig gh h p pr re es ss su ur re e R Re ec co ov ve ...

Page 3: ... Line and Indoor Coil Evacuation 14 Service Valves 15 Electrical Low Voltage Non Communicating 16 Low Voltage Hook up Diagrams 16 Electrical High Voltage 17 System Start Up 18 Subcooling Charging in Cooling between 55 F and 120 OD Ambient 19 System Charge Adjustment 20 Refrigerant Charging Chart 21 Subcool Charging Charts 22 Charging the Unit 23 Checkout Procedures 25 Troubleshooting 26 Troublesho...

Page 4: ... 14 5 16 5 17 5 145 4A7L6030A 36 75 x 14 1 2 x 40 26 75 40 0 36 75 14 5 16 5 17 5 160 4A7L6036A 36 75 x 17 1 2 x 47 32 75 47 0 36 75 17 5 19 5 20 5 215 4A7L6042A 36 75 x 17 1 2 x 47 32 75 47 0 36 75 17 5 19 5 20 5 216 4A7L6048A 36 75 x 17 1 2 x 47 32 75 47 0 36 75 17 5 19 5 20 5 216 4A7L6060A 42 75 x 17 1 2 x 47 32 75 47 0 42 75 17 5 19 5 20 5 236 Weight values are estimated uncrated A 75 7 5 C B ...

Page 5: ...d 150 feet 2 The maximum vertical change should not exceed 50 feet 3 Service valve connection diameters are shown in Refrigerant Line and Service Valve Connection Size Chart 50 Max Vertical Change Standard Line Set 150 Max Line Length 50 Max Vertical Change U Un ni it t L Lo oc ca at ti io on n C Co on ns si id de er ra at ti io on ns s ...

Page 6: ...of the outdoor unit must be a minimum of 6 from any wall or surrounding shrubbery to ensure adequate airflow Note 2 Required for Service Panel Access Min 20 clearance to obstruction Fan Side Min 6 clearance to obstruction Coil Side Airflow Direction Voltage hook up Access panel Note 2 Required for Service Panel Access Min 6 clearance to obstruction Coil Side Min 20 clearance to obstruction Fan Sid...

Page 7: ...ulation and prolonged below freezing temperatures occur Units should be elevated 3 12 inches above the pad or rooftop depending on local weather This additional height will allow drainage of snow and ice melted during defrost cycle prior to its refreezing Ensure that drain holes in unit base pan are not obstructed preventing drainage of defrost water If possible avoid locations that are likely to ...

Page 8: ...pport pad such as a concrete slab consider the following The pad should be at least 1 larger than the unit on all sides The pad must be separate from any structure The pad must be level The pad should be high enough above grade to allow for drainage The pad location must comply with National State and Local codes Important Unit can be secured to the pad if there is concern of the unit tipping U Un...

Page 9: ...tory charged with the system charge required for the outdoor condensing unit fifteen 15 feet of tested connecting line and the smallest indoor evaporative coil match See unit nameplate If connecting line length exceeds fifteen 15 feet and or a larger indoor evaporative coil is installed then final refrigerant charge adjustment is necessary Use the Subcooling charging procedure found in the outdoor...

Page 10: ...l ld de er re ed d For retrofit applications where the existing indoor evaporator coil and or refrigerant lines will be used the following precautions should be taken Ensure that the indoor evaporator coil and refrigerant lines are the correct size Ensure that the refrigerant lines are free of leaks acid and oil Important For more information see publication number SS APG006 EN Table 12 Refrigeran...

Page 11: ...very 8 ft Table 14 Isolation In Wall Spaces Side View Isolator Line Set 8 Feet Maximum Wall 8 Feet Maximum Secure Vapor Line from joists using isolators every 8 ft Secure Liquid Line directly to insulated Vapor Line using tape wire or other appropriate method every 8 ft Table 15 Isolation Through Wall Wall Sealant Insulation Vapor Line Duct Work Isolator Line Set DO NOT hang line sets from duct wo...

Page 12: ... tool to debur the pipe ends Clean both internal and external surfaces of the tubing using an emery cloth 2 Remove the pressure tap cap and valve core from each service valves 3 Purge the refrigerant lines and indoor coil with dry nitrogen U Un ni it t L Lo oc ca at ti io on n C Co on ns si id de er ra at ti io on ns s ...

Page 13: ...way from outdoor unit and toward evaporator coil as illustrated Braze the filter drier to the Liquid Line 6 Continue the dry nitrogen purge Do not remove the wet rag until all brazing is completed Important Remove the wet rag before stopping the dry nitrogen purge Note Precautions should be taken to avoid heat damage to base pan during brazing It is recommended to keep the flame directly off of th...

Page 14: ...t t Do not open the service valves until the refrigerant lines and indoor coil leak check and evacuation are complete 1 Evacuate until the micron gauge reads no higher than 350 microns then close off the valve to the vacuum pump 0350 Microns ON OFF 2 Observe the micron gauge Evacuation is complete if the micron gauge does not rise above 500 microns in one 1 minute 3 When evacuation is complete bla...

Page 15: ...t i in n p pe er rs so on na al l i in nj ju ur ry y a an nd d o or r p pr ro op pe er rt ty y d da am ma ag ge e E Ex xt tr re em me e c ca au ut ti io on n s sh ho ou ul ld d b be e e ex xe er rc ci is se ed d w wh he en n o op pe en ni in ng g t th he e S Su uc ct ti io on n a an nd d L Li iq qu ui id d L Li in ne e S Se er rv vi ic ce e V Va al lv ve e T Tu ur rn n v va al lv ve e s st te em m...

Page 16: ... 300 Ft Low Voltage Hook up Diagrams With TEM 3 4 6 8 Thermostat Air Handler Outdoor Unit R G B W1 W2 R B O Y X2 R G B C O Y W Blue 24 VAC HOT FAN 24 VAC Common SOV COOL HEAT 1st STAGE HEATING 2nd STAGE EMERGENCY HEAT Pink Black White X2 O Y With TAM 4 5 7 9 Thermostat Air Handler Outdoor Unit R G B W1 W2 R B O YO YO X2 R G B C O Yl W Blue O Yl 24 VAC HOT FAN 24 VAC Common SOV COOL HEAT 1st STAGE ...

Page 17: ...2 High Voltage Disconnect Switch W WA AR RN NI IN NG G H HI IG GH H L LE EA AK KA AG GE E C CU UR RR RE EN NT T F Fa ai il lu ur re e t to o f fo ol ll lo ow w t th hi is s W Wa ar rn ni in ng g c co ou ul ld d r re es su ul lt t i in n p pr ro op pe er rt ty y d da am ma ag ge e s se ev ve er re e p pe er rs so on na al l i in nj ju ur ry y o or r d de ea at th h E Ea ar rt th h c co on nn ne ec ...

Page 18: ...er to the indoor and outdoor units ON OFF 3 Wait one 1 hour before starting the unit if compressor crankcase heater accessory is used and the Outdoor Ambient is below 70 F 60 MIN 4 Set the system thermostat to ON ON DONE CANCEL E El le ec ct tr ri ic ca al l L Lo ow w V Vo ol lt ta ag ge e N No on n C Co om mm mu un ni ic ca at ti in ng g ...

Page 19: ... system must be operated for a minimum of 20 minutes to stabilize before accurate measurements can be made 4 Measure Liquid Line Temperature and Refrigerant Pressure at service valves 5 Determine total refrigerant line length and height lift if indoor section is above the condenser 6 Determine the Design Subcooling Charging Temperature from the unit nameplate 7 Locate this value in the appropriate...

Page 20: ... 120 F 55 F For best results the indoor temperature should be kept between 70 F to 80 F 80 F 70 F Table 25 Subcooling Charging Corrections Determine the final subcooling value using total Line Length and Lift See Required Refrigerant Line Length and the Subcooling Charging Corrections Charts Subcooling Charging Correction Worksheet Total Line Length ft ________________________ Total Vertical Charg...

Page 21: ...11 215 65 211 215 218 222 225 229 232 70 229 232 236 240 243 247 251 75 247 251 255 259 263 267 271 80 267 271 275 279 283 287 291 85 287 291 296 300 304 309 313 90 309 313 318 322 327 331 336 95 331 336 341 346 351 355 360 100 355 360 365 370 376 381 386 105 381 386 391 396 402 407 413 110 407 413 418 424 429 435 441 115 435 441 446 452 458 464 470 120 464 470 476 482 488 495 501 125 495 501 507 ...

Page 22: ...s 50 4 40 30 25 Use Design Subcooling 15 1 10 0 20 30 40 50 60 70 80 90 100 110 120 130 140 150 Add 1 Add 2 REFRIGERANT LINE LIFT FT SUBCOOL CHARGING CHART CORRECTIONS TABLE FOR LINE LENGTH AND RISE TOTAL REFRIGERANT LINE LENGTH FT includes lift Add 1 Figure 5 3 5 Ton Models 50 40 30 25 Use Design Subcooling 15 10 0 20 30 40 50 60 70 80 90 100 110 120 130 140 150 Add 1 Add 1 Add 1 Add 2 Add 4 REFR...

Page 23: ... Subcooling Value ________________________ F 107 F Table 28 Verify Performance 4 Refer to System Pressure Curves in the Service Facts document to verify typical performance PRESSURE CURVE SAMPLE Cooling 1450 SCFM Heating 1350 SCFM DISCHARGE PRESSURE PSIG OUTDOORTEMPERATURE Degree F SUCTION PRESSURE PSIG 110 115 120 125 130 135 140 145 150 155 160 165 170 40 60 80 100 120 200 250 300 350 400 450 50...

Page 24: ...t if the Liquid Gage Pressure is higher than the chart value 107 F Table 30 System Information 9 Record system pressures and temperatures after charging is complete Outdoor model number ________________________ Measured Outdoor Ambient ________________________ F Measured Indoor Ambient ________________________ F Measured Liquid Line Temp ________________________ F Measured Suction Line Temp ______...

Page 25: ...ing shipment Adjust tubing if necessary so tubes do not rub against each other or any component when unit runs Ductwork is sealed and insulated All drain lines are clear with joints properly sealed Pour water into drain pan to confirm proper drainage Provide enough water to ensure drain trap is primed Supply registers and return grilles are open unobstructed and air filter is installed Indoor blow...

Page 26: ...ge present at contactor coil Replace contactor Check control transformer and control fuse Is the control transformer and fuse good Jumper R to Y low voltage terminals at thermostat sub base Does the contactor energize Replace the room thermostat Repair or replace transformer or fuse Investigate cause for failure possible short in field wiring Repair or replace connecting wiring NO Check ID Low vol...

Page 27: ...11 AC40D1 1E EN 27 Troubleshooting Does a resistance check show an open circuit between R and S T Tr ro ou ub bl le es sh ho oo ot ti in ng g ...

Page 28: ... a global business committed to a world of sustainable progress and enduring results ingersollrand com The AHRI Certified mark indicates Ingersoll Rand participation in the AHRI Certification program For verification of individual certified products go to www ahridirectory org Ingersoll Rand has a policy of continuous product and product data improvements and reserves the right to change design an...

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