American Standard 4A7A6018-061 Installation And Operation Manual
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American Standard 4A7A6018-061 Installation And Operation Manual

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ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
IMPORTANT - This Document is customer property and is to remain with this unit. Please return to service informa-
tion pack upon completion of work.
These instructions do not cover all variations in systems or provide for every possible contingency to be met in connection with
the installation. Should further information be desired or should particular problems arise which are not covered sufficiently for the
purchaser's purposes, the matter should be referred to your installing dealer or local distributor.
Note: The manufacturer recommends installing only approved matched indoor and outdoor systems. Some of the benefits of
installing approved matched indoor and outdoor split systems are maximum efficiency, optimum performance and the best overall
system reliability.

Table of Contents

Section 1. Safety ..................................................................................... 2
Section 2. Unit Location Considerations ............................................. 3
Section 3. Unit Preparation.................................................................... 4
Section 4. Setting the Unit ..................................................................... 5
Section 5. Refrigerant Line Considerations ......................................... 5
Section 6. Refrigerant Line Routing ..................................................... 6
Section 7. Refrigerant Line Brazing ...................................................... 7
Section 8. Refrigerant Line Leak Check ............................................... 9
Section 9. Evacuation ............................................................................ 9
Section 10. Service Valves .................................................................. 10
Section 11. Electrical - Low Voltage ................................................... 10
Section 12. Electrical - High Voltage .................................................. 13
Section 13. Start Up.............................................................................. 14
Section 14. System Charge Adjustment............................................. 15
Section 15. Checkout Procedures ...................................................... 20
Section 16. Refrigeration Circuits........................................................20
Section 17. Wiring Diagrams................................................................23
Section 18. Pressure Curves................................................................37
Installation and Operation Manual
Condensing Units
4A7A6018 - 061
11-AC36D1-7D-EN

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  • Page 1: Table Of Contents

    11-AC36D1-7D-EN Installation and Operation Manual Condensing Units 4A7A6018 – 061 ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES IMPORTANT — This Document is customer property and is to remain with this unit. Please return to service informa- tion pack upon completion of work.

  • Page 2: Section 1. Safety

    Section 1. Safety WARNING WARNING LIVE ELECTRICAL COMPONENTS! This information is intended for use by individuals During installation, testing, servicing, and trouble- possessing adequate backgrounds of electrical and shooting of this product, it may be necessary to work mechanical experience. Any attempt to repair a central with live electrical components.

  • Page 3: Section 2. Unit Location Considerations

    Section 2. Unit Location Considerations 2.1 Unit Dimensions and Weight Table 2.1 Unit Dimensions and Weight Models H x D x W (in) Weight* (lb) 4A7A6024N 41 x 34 x 37 4A7A6036N 45 x 34 x 37 4A7A6048N 45 x 34 x 37 4A7A6060N 45 x 34 x 37 4A7A6018J...

  • Page 4: Section 3. Unit Preparation

    2.3 Suggested Locations for Best Reliability Avoid Install Ensure the top discharge area is unrestricted for Near Bedrooms at least five (5) feet above the unit. Three (3) feet clearance must be provided in Min 5’ Unrestricted front of the control box (access panels) and any other side requiring service.

  • Page 5: Section 4. Setting The Unit

    Section 4. Setting the Unit 4.1 Pad Installation When installing the unit on a support 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. •...

  • Page 6: Section 6. Refrigerant Line Routing

    5.4 Refrigerant Line Insulation Important: The Vapor Line must always be Vapor Line Liquid Line insulated. DO NOT allow the Liquid Line and Insulation Vapor Line to come in direct (metal to metal) contact. 5.5 Reuse Existing Refrigerant Lines CAUTION If using existing refrigerant lines make certain that all joints are brazed, not soldered.

  • Page 7: Section 7. Refrigerant Line Brazing

    8 Feet Maximum Wall Isolator Line Set 8 Feet Maximum Side View Secure Vapor Line using isolators every 8 ft. Secure Liquid Line directly to Vapor Line using tape, wire, or other appropriate method every 8 ft. Isolation In Wall Spaces Wall Sealant Ductwork...
  • Page 8 STEP 2 - Remove the pressure tap cap and valve cores from both service valves. STEP 3 - Purge the refrigerant lines and indoor coil with dry nitrogen. STEP 4 - Wrap a wet rag around the valve body to avoid heat damage and continue the dry nitro- gen purge.

  • Page 9: Section 8. Refrigerant Line Leak Check

    STEP 5 - Replace the pressure tap valve cores after the service valves have cooled. Section 8. Refrigerant Line Leak Check 8.1 Check For Leaks STEP 1 - Pressurize the refrigerant lines and 150 PSIG evaporator coil to 150 PSIG using dry nitrogen. STEP 2 - Check for leaks by using a soapy solu- tion or bubbles at each brazed location.

  • Page 10: Section 10. Service Valves

    STEP 2 - Observe the micron gauge. Evacuation is complete if the micron gauge does not rise above 500 microns in one (1) minute. 1 MIN. Once evacuation is complete blank off the vacuum pump and micron gauge, and close the valves on the manifold gauge set.
  • Page 11 11.2 Low Voltage Hook-up Diagrams For 024N - 060N Models: With TEM 6 With TAM 7 Outdoor Outdoor Thermostat Air Handler Thermostat Air Handler Unit Unit 24 VAC HOT 24 VAC HOT 24 VAC 24 VAC Common Common Blue Blue COOL/HEAT COOL/HEAT 1st STAGE...
  • Page 12 With Variable Speed S-Series Furnace Outdoor Thermostat Furnace Unit NOTES: 1) For PWM (BK) enabled thermostats, cut the BK jumper on 24 VAC HOT the IFC and connect wiring. 2) The factory Y1-O jumper must remain in place for proper LED read out in cooling mode.

  • Page 13: Section 12. Electrical - High Voltage

    With Furnace With Variable Speed Furnace Outdoor Outdoor Thermostat Furnace Thermostat Furnace Unit Unit 24 VAC HOT 24 VAC HOT 24 VAC 24 VAC Common Common COOL COOL HEATING HEATING • Units with pigtails require wirenuts for connections. Cap all unused wires. •...

  • Page 14: Section 13. Start Up

    12.3 High Voltage Ground Ground the outdoor unit per national, state, and local code requirements. Section 13. Start Up 13.1 System Start Up STEP 1 - Ensure Sections 7 through 12 have been completed. STEP 2 - Set System Thermostat to OFF. DONE CANCEL STEP 3 - Turn on disconnect(s) to apply power...

  • Page 15: Section 14. System Charge Adjustment

    Section 14. System Charge Adjustment 14.1 Temperature Measurements (Systems can be rated with TXV, EEV or Piston. Ensure charging method is correct). STEP 1 - Check the outdoor temperatures. 120º F Subcooling (in cooling mode) is the only recommended* method of charging above 55º F ambient outdoor tem- perature.
  • Page 16 STEP 2 - Determine the final subcooling value using total Line Length and Lift measured in STEP 1 and the charts below. 024N Units 036N Units SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) 1°...
  • Page 17 STEP 3 - Stabilize the system by operating for a minimum of 20 minutes. At startup, or whenever charge is removed or 20 MIN. added, the system must be operated for a mini- mum of 20 minutes to stabilize before accurate measurements can be made.
  • Page 18 STEP 6 - Adjust refrigerant level to attain proper gage pressure. Add refrigerant if the Liquid Gage Pressure is lower than the chart value. 1. Connect gages to refrigerant bottle and unit as illustrated. 2. Purge all hoses. 3. Open bottle. 4.
  • Page 19 Fixed Orifice Superheat Charging Table Indoor Wet Bulb Temp (F) Outdoor Bulb Temp. Using a digital psychrometer, measure the return air wet-bulb temperature at the unit just before the coil. Also measure the outdoor dry-bulb tem- perature. Use these temperatures to locate the target superheat on the charging table. Do not attempt to charge the system if these conditions fall outside of this charging table.

  • Page 20: Section 15. Checkout Procedures

    Section 15. Checkout Procedures 15.1 Operational And Checkout Procedures Final phases of this installation are the unit Operational and Checkout Procedures. To obtain proper performance, all units must be operated and charge adjustments made. Important: Perform a final unit inspection to be sure that factory tubing has not shifted during shipment. Adjust tubing if nec- essary so tubes do not rub against each other when the unit runs.
  • Page 21 6030, 6036 & 6041 Models PRINTED FROM D158514P01 6042 & 6048 Models Printed from D157878 11-AC36D1-7D-EN...
  • Page 22 6049 & 6060 Models Printed from D159175 6061 Models LINE D AMPENER ( SEE NO TE 1) PRINTED FROM D156708 11-AC36D1-7D-EN...

  • Page 23: Section 17. Wiring Diagrams

    Section 17. Wiring Diagrams 024N & 036N Models 11-AC36D1-7D-EN...
  • Page 24 024N & 036N Models 11-AC36D1-7D-EN...
  • Page 25 048N Models 11-AC36D1-7D-EN...
  • Page 26 048N Models 11-AC36D1-7D-EN...
  • Page 27 060N Models 11-AC36D1-7D-EN...
  • Page 28 060N Models 11-AC36D1-7D-EN...
  • Page 29 018J - 030J & 036J - 048J Models 11-AC36D1-7D-EN...
  • Page 30 018J - 030J & 036J - 048J Models 11-AC36D1-7D-EN...
  • Page 31 035J Models PRINTED FROM D157362P05 REVB 11-AC36D1-7D-EN...
  • Page 32 035J Models PRINTED FROM D157362P05 REVB 11-AC36D1-7D-EN...
  • Page 33 049J & 061C Models 11-AC36D1-7D-EN...
  • Page 34 049J & 061C Models 11-AC36D1-7D-EN...
  • Page 35 060J & 060K Models 11-AC36D1-7D-EN...
  • Page 36 060J & 060K Models 11-AC36D1-7D-EN...

  • Page 37: Section 18. Pressure Curves

    Section 18. Pressure Curves PRESSURE CURVES (Refer below table for models) INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F. Cooling OD Model @SCFM 4A7A6024N1 OUTDOOR TEMPERATURE (Degree F) 1000 4A7A6036N1 INDOOR ENTERING 4A7A6048N1 1300 WET BULB CURVES TOP TO BOTTOM...
  • Page 38 PRESSURE CURVES (Refer below table for models) INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F. Cooling OD Model @SCFM OUTDOOR TEMPERATURE (Degree F) 1600 4A7A6060N1 INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F.
  • Page 39 PRESSURE CURVES (Refer below table for models) INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F. Cooling OD Model @SCFM OUTDOOR TEMPERATURE (Degree F) 4A7A6018J1 INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F. OUTDOOR TEMPERATURE (Degree F) COOLING PERFORMANCE CAN BE CHECKED WHEN THE OUTDOOR TEMP IS ABOVE 65 DEG F.
  • Page 40 PRESSURE CURVES (Refer below table for models) INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F. Cooling OD Model @SCFM 4A7A6024J1 4A7A6030J1 4A7A6035J1 1050 OUTDOOR TEMPERATURE (Degree F) 4A7A6036J1 1050 4A7A6041J1 INDOOR ENTERING 1250 WET BULB CURVES TOP TO BOTTOM 4A7A6042J1...
  • Page 41 PRESSURE CURVES (Refer below table for models) INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F. Cooling OD Model @SCFM OUTDOOR TEMPERATURE (Degree F) 1600 4A7A6060J1 1600 4A7A6061C1 INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F.
  • Page 42 PRESSURE CURVES (Refer below table for models) INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F. Cooling OD Model @SCFM OUTDOOR TEMPERATURE (Degree F) 1450 4A7A6060K1 INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F.
  • Page 43 Notes 11-AC36D1-7D-EN...
  • Page 44 About American Standard Heating and Air Conditioning American Standard has been creating comfortable and affordable living environments for more than a century. For more information, please visit www.americanstandardair.com. The AHRI Certified mark indicates company participation in the AHRI Certification program. For verification of individual certified products, go to ahridirectory.org.

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