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BLD2023-0764_Manufacturer_Specifications_and_Installation_Instructions_6.16.2023_3.56.43_PM_3615061l�c�`lCay S7�ydsrd 11 -AC36D1 -7C-EN HEATING & AIR CONDITIONING Installer's guide 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. 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 Section1. 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..................................................12 Section13. Start Up..............................................................................12 Section 14. System Charge Adjustment.............................................13 Section 15. Checkout Procedures and Troubleshooting ..................18 Section 16. Refrigeration Circuits........................................................22 Section 1. Safety This information is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience. Any attempt to repair a central air conditioning product may result in personal injury and/or property damage. The manufacture or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connec- tion with its use. These units use R-410A refrigerant which operates at 50 to 70% higher pressures than R-22. Use only R-410A approved service equipment. Refrigerant cyl- inders are painted a "Rose" color to indicate the type of refrigerant and may contain a "dip" tube to allow for charging of liquid refrigerant into the system. All R-410A systems use a POE oil that readily absorbs moisture from the atmosphere. To limit this "hygro- scopic" action, the system should remain sealed whenever possible. If a system has been open to the atmosphere for more than 4 hours, the compressor oil must be replaced. Never break a vacuum with air and always change the driers when opening the system for component replacement. For specific handling concerns with R-410A and POE oil reference Retrofit Bulletins SS-APG006-EN and APP-APG011-EN. UNIT CONTAINS R-410A REFRIGERANT! R-410A operating pressures exceed the limit of R-22. Proper service equipment is required. Failure to use proper service tools may result in equipment damage or personal injury. SERVICE USE ONLY R-410A REFRIGERANT AND AP- PROVED POE COMPRESSOR OIL. Extreme caution should be exercised when opening the Liquid Line Service Valve. Turn counterclockwise until the valve stem just touches the rolled edge. No torque is required. Failure to follow this warning will re- sult in abrupt release of system charge and may result in personal injury and /or property damage. LIVE ELECTRICAL COMPONENTS! During installation, testing, servicing, and trouble- shooting of this product, it may be necessary to work with live electrical components. Failure to follow all electrical safety precautions when exposed to live electrical components could result in death or serious injury. The appliance is not to be used by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, un- less they have been given supervision or instruction. Children should be supervised to ensure that they do not play with the appliance. If using existing refrigerant lines make certain that all joints are brazed, not soldered. Scroll compressor dome temperatures may be hot. Do not touch the top of compressor; it may cause minor to severe burning. WARNING! This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov 11-AC36D 1-7C-E N 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) 4A7A6018J 29 x 30 x 33 161 4A7A6024J 29 x 30 x 33 162 4A7A6030J 37 x 30 x 33 184 4A7A6035J 33 x 30 x 33 156 4A7A6036J 37 x 34 x 37 212 4A7A6041 J 37 x 34 x 37 212 4A7A6042J 45 x 34 x 37 252 4A7A6048J 45 x 34 x 37 256 4A7A6049J 45 x 34 x 37 272 4A7A6060J 45 x 34 x 37 277 4A7A6060K 45 x 34 x 37 252 4A7A6061 J 45 x 34 x 37 280 " Weight values are estimated. When mounting the outdoor unit on a roof, be sure the roof will support the unit's weight. Properly selected isolation is recommended to alleviate sound or vibration transmission to the building structure. 2.2 Refrigerant Piping Limits 1. The maximum TOTAL length of refrigerant lines from outdoor to indoor unit should NOT exceed 150 feet (including lift). 2. The maximum vertical change should not exceed 50 feet. 3. Service valve connection diameters are shown in Table 5.1. Note: For other line lengths, Refer to Refriger- ant Piping Application Guide, SS-APGO06-EN or Refrigerant Piping Software Program, 32- 3312-03 (or latest revision). Standard Line Set 150' Max TOTAL Line Length 50' Max Vertical Change 11 -AC36D1 -7C-EN 3 Z.3 Suggested Locations for tsest Henabi Ensure the top discharge area is unrestricted for at least five (5) feet above the unit. Three (3) feet clearance must be provided in front of the control box (access panels) and any other side requiring service. Do not locate close to bedrooms as operational sounds may be objectionable. Position the outdoor unit a minimum of 12" from any wall or surrounding shrubbery to ensure adequate airflow. Outdoor unit location must be far enough away from any structure to prevent excess roof runoff water from pouring directly on the unit. 2.4 Coastal Considerations Avoid Install Near Bedrooms Min 5' Unrestricted Min 3' Min. 12"to Imo— Unrestricted Shrubbery lol[III «lolllc 1�1111�11111111 QIIIIIIIIII�IIII Access Panel � ➢IU1®I�1m �NVll9101L llIIfI�VV[VV VIVWI'NWVC I(I�II�I f(lnlll[(GNVC 4hiM�MtlNN If installed within one mile of salt water, including seacoasts and inland waterways, models without factory sup- plied Seacoast Salt Shields require the addition of BAYSEAC001 (Seacoast Kit) at installation time. Section 3. Unit Preparation 3.1 Prepare The Unit For Installation STEP 1 - Check for damage and report promptly to the carrier any damage found to the unit. STEP 2 - To remove the unit from the pallet, remove tabs by cutting with a sharptool. REMOVE TABS AS SHOWN 4 1 1-AC36D1-7C-EN 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. • 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. For other applications refer to Application Guide AMSSP-APG002-EN. Section 5. Refrigerant Line Considerations 5.1 Refrigerant Line and Service Valve Connection Sizes Table 5.1 Line Sizes Service Valve Connection Sizes Model Vapor Line Liquid Line Vapor Line Connection Liquid Line Connection 4A7A6018J 3/4 3/8 3/4 3/8 4A7A6024J 3/4 3/8 3/4 3/8 4A7A6030J 3/4 3/8 3/4 3/8 4A7A6035J 3/4 3/8 3/4 3/8 4A7A6036J 7/8 3/8 3/4 3/8 4A7A6041 J 7/8 3/8 3/4 3/8 4A7A6042J 7/8 3/8 7/8 3/8 4A7A6048J 7/8 3/8 7/8 3/8 4A7A6049J 7/8 3/8 7/8 3/8 4A7A6060J 1-1/8 3/8 7/8 3/8 4A7A6060K 1-1/8 1 3/8 7/8 3/8 4A7A6061 J 1-1/8 1 3/8 7/8 1 3/8 5.2 Factory Charge The outdoor condensing units are factory charged with the system charge required for the outdoor condensing unit, ten (10) feet of tested connecting line, and the smallest rated indoor evaporative coil match. Always verify proper system charge via subcooling (TXV/EEV) or superheat (fixed orifice) per the unit nameplate. 5.3 Required Refrigerant Line Length Determine required line length and lift. You will need this later in STEP 2 of Section 14. Total Line Length = Ft. Total Vertical Change (lift) = Ft. 11-AC36 D 1-7C-E N 5 5.4 Refrigerant Line Insulation Important: The Vapor Line must always be insulated. DO NOT allow the Liquid Line and Vapor Line to come in direct (metal to metal) contact. 5.5 Reuse Existing Refrigerant Lines NOWNWHiTe If using existing refrigerant lines make certain that all joints are brazed, not soldered. 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. Section 6. Refrigerant Line Routing 6.1 Precautions Liquid Line Vapor Line Insulation A Important: Take precautions to prevent noise Comply with National, State, and Local Codes when within the building structure due to vibration isolating line sets from joists, rafters, walls, or other transmission from the refrigerant lines. structural elements. For Example: • When the refrigerant lines have to be fastened to floor joists or other framing in a structure, use isolation type hangers. • Isolation hangers should also be used when refrigerant lines are run in stud spaces or enclosed ceilings. • Where the refrigerant lines run through a wall or sill, they should be insulated and isolated. • Isolate the lines from all ductwork. • Minimize the number of 902 turns. 0 Side View 8 Feet Maximum Joist/Rafter n n 1 8 Feet Maximum Secure Vapor line from joists using isolators every 8 ft. Secure Liquid Line directly to Vapor line using tape, wire, or other appro- priate method every 8 ft. Isolator Line Set Isolation From Joist/Rafter 11-AC36D 1-7C-E N 8 Feet Maximum O Side View 8 Feet Maximum 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 - Insulation Vapor Line Isolation Through Wall Section 7. Refrigerant Line Brazing 7.1 Braze The Refrigerant Lines STEP 1 - Remove caps or plugs. Use a debur- ing tool to debur the pipe ends. Clean both internal and external surfaces of the tubing using an emery cloth. DO NOT hang line sets from ductwork Wall — Isolator Line Set 11-AC36 D 1-7C-EN 7 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. Braze the refrigerant lines to the service valves. For units shipped with a field -installed external drier, check liquid line filter drier's directional flow arrow to confirm correct direction of refrigeration flow (away from outdoor unit and toward evapo- rator coil) as illustrated. Braze the filter drier to the Liquid Line. 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: Install drier in Liquid Line. NOTE: Precautions should be taken to avoid heat damage to basepan during brazing. It is recommended to keep the flame directly off of the basepan. o 3-4 "from valve e �e e e, 11-AC36D 1-7C-E N 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 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. Remove nitrogen pressure and repair any leaks before continuing. Section 9. Evacuation 9.1 Evacuate the Refrigerant Lines and Indoor Coil Important: Do not open the service valves until the refrigerant lines and indoor coil leak check and evacuation are complete. STEP 1 - Evacuate until the micron gauge reads no higher than 350 microns, then close off the valve to the vacuum pump. 150 PSIG 0350 Microns 0 ON OFF 11-AC36 D 1-7C-EN 9 STEP 2 - Observe the micron gauge. Evacuation is complete if the micron gauge does not rise above 500 microns in one (1) minute. Once evacuation is complete blank off the vacuum pump and micron gauge, and close the valves on the manifold gauge set. Section 10. Service Valves 10.1 Open the Gas Service Valve Important: Leak check and evacuation must be completed before opening the service valves. NOTE: Do not vent refrigerant gases into the atmosphere STEP 1 - Remove valve stem cap. STEP 2 - Using an adjustable wrench, turn valve stem 1/4 turn counterclockwise to the fully open position. STEP 3 - Replace the valve stem cap to prevent leaks. Tighten finger tight plus an additional 1/6 turn. 10.1 Open the Liquid Service Valve Extreme caution should be exercised when opening the Liquid Line Service Valve. Turn counterclockwise until the valve stem just touches the rolled edge. No torque is required. Failure to follow this warning will result in abrupt release of system charge and may result in personal injury and /or property damage. Important: Leak check and evacuation must be completed before opening the service valves. STEP 1 - Remove service valve cap. STEP 2 - Fully insert 3/16" hex wrench into the stem and back out counterclockwise until valve stem just touches the rolled edge (approximately five (5) turns.) STEP 3 - Replace the valve cap to prevent leaks. Tighten finger tight plus an additional 1/6 turn. Section 11. Electrical - Low Voltage 11.1 Low Voltage Maximum Wire Length Table 11.1 defines the maximum total length of low voltage wiring from the outdoor unit, to the indoor unit, and to the thermostat. 1 MIN. 1/4 TURN ONLY CAP �- COUNTERCLOCKWISE FOR FULL OPEN POSITION �- VALVE STEM UNIT SIDE OF VALVE PRESSURE TAP PORT / GAS LINE CONNECTION Capes (, Unit Side /3/16" Hex Wrench of Service Valve Rolled Edge to Il Captivate Stem Hex Headed \ MValve System Service 24 VOLTS WIRE SIZE MAX. WIRE LENGTH 18 AWG 150 Ft. 16 AWG 225 Ft. 14 AWG 300 Ft. 10 11 -AC36D1 -7C-EN 11.2 Low Voltage Hook-up Diagrams With TEM 3, 4, 6, 8 With TAM 4,7,9 Thermostat Air Handler Outdoor Thermostat Unit Air Handler Outdoor Unit 24 VAC HOT R R - -i 24 VAC HOT i R R i FAN G G FAN i G G i 24 VAC p rB 24 VAC Common Common � Blue B Co i B Blue B I^� I i SOV I �' SOV It STAGET Y Y1 Y CO L/HE T Y YI Y2* Yp Yp HEATING Wi HEATING 2nd STAGE W )_ Whit 2nd STAGE W 1 `A,i Vyil HEATEMERGENCV `^/2 - - w2 HEATEMER VV VPiVn `^/� VV - - - - ` 2 VPiVnk kL BK ---- FBK1 WH/BL WH/BL BK --- WH/BL BK WH/BL • Units with pigtails require wirenuts for connections. Cap all unused wires. • In AC systems for multiple stages of electric heat, jumper W1 and W2 together if comfort control has only one stage of heat. • TEM3/4 - Bypass air handler and connect Y from comfort control directly to OD unit * TEM6 Only ** TEM6 only - When using a BK enabled comfort control, cut BK jumper and bypass Y1 and Y2 at the air handler. Connect BK from comfort control to BK of the air handler • TAM4 only - Wire as shown, no BK is available • TAM7 only - When using a BK enabled comfort control, cut BK jumper on the AFC and connect BK from comfort control to BK of the air handler With Furnace With Variable Speed Furnace Thermostat Furnace Outdoor Thermostat Furnace Outdoor Unit Unit 24 VAC HOT R R FAN24 VAC G G Common B/C B B COOL Y 1 Y _ _ Y --YLo --- HEATING V V 1 W 1 W2 ---- W2 BK ---- FBK • Units with pigtails require wirenuts for connections. Cap all unused wires. • In AC systems for multiple stages of heat, jumper W1 and W2 together if comfort control has only one stage of heat. * If equipped with second stage heat ** When using a BK enabled comfort control, cut BK jumper and bypass Y and YLo at the furnace. Connect BK from comfort control to BK of the furnace 11-AC36 D 1-7C-EN 11 Section 12. Electrical - High Voltage 12.1 High Voltage Power Supply LIVE ELECTRICAL COMPONENTS! During installation, testing, servicing, and troubleshooting of this product, it may be nec- essary to work with live electrical components. Failure to follow all electrical safety precau- tions when exposed to live electrical compo- nents could result in death or serious injury. The high voltage power supply must agree with the equipment nameplate. Power wiring must comply with national, state, and local codes. Follow instructions on unit wiring diagram located on the inside of the control box cover and in the Service Facts document included with the unit. 12.2 High Voltage Disconnect Switch Install a separate disconnect switch at the outdoor unit. For high voltage connections, flexible electri- cal conduit is recommended whenever vibra- tion transmission may create a noise problem within the structure. 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. III 1 1�� II i O 0 OFF 00 12 11 -AC36D1 -7C-EN STEP 3 - Turn on disconnect(s) to apply power to the indoor and outdoor units. STEP 4 - Wait one (1) hour before starting the unit if compressor crankcase heater acces- sory is used and the Outdoor Ambient is below 70°F. STEP 5 - Set system thermostat to ON. �L6 0 MIN. 0 ON o 0 00 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. Subcooling (in cooling mode) is the only recommended* method of charging above 552 F ambient outdoor tem- perature. Note: For Superheat (In Cooling Mode), refer to the Superheat Charging Table. For best results the indoor temperature should be kept between 70Q F to 80° F. Note: It is important to return in the spring or summer to accurately charge the system in the cooling mode when outdoor ambient temperature is above 552 F. X 1200 F J 559 F X Outdoor Temp X 800 F J 70° F X Indoor Temp 11-AC36 D 1-7C-EN 13 14.2 Subcooling Charging in Cooling (Above 55° F Outdoor Temp.) STEP 1 - Use the refrigerant line total length and lift measurements from Section 5.3. Total Line Length = Ft. Vertical Change (Lift) = Ft. STEP 2 - Determine the final subcooling value using total Line Length and Lift measured in STEP 1 and the charts below. 018 Units 024 Units 030 Units 042 Units SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH A F 50 Add 4^ 049 Units Design Subcooling Value = 0 F (from nameplate or Service Facts) Final Subcooling Value = ° F 035, 036 & 041 Units _ SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) 50 4° 40 Add 1° Add 2° z 30 Add 1' z25 Use Design Subcooling a< 15 1° 10 10 0 '.� 20 30 40 50 60 70 80 90 100 110 120 130 140150 TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ] 048 Units 50 1° Add.4° 40 z 30 1 ° Add 1' Add 2° ---- z 25 Use Design Subcooling < 15 Add 1° 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 TOTAL REFRIGERANT LINE LENGTH (FT) - includes lift ] 060, 061 Units _ - SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) '.r 50 1° Add4° 40 z 30 Add 2° - 25 Use Design Subcooling Add 1° < 15 CID 10 Add 10 0 '.� 20 30 40 50 60 70 80 90 100 110 120130 140 150 TOTAL REFRIGERANT LINE LENGTH (FT) - ] includes lift ] Subcooling Correction = 0 F 14 1 1-AC36D1-7C-EN STEP 3 - Stabilize the system by operating for a minimum of 20 minutes. At startup, or whenever charge is removed or added, the system must be operated for a mini- mum of 20 minutes to stabilize before accurate measurements can be made. STEP 4 - Measure the liquid line temperature and pressure at the outdoor unit's service valve. Measured Liquid Line Temp = ° F Liquid Gage Pressure = PSI Final Subcooling Value = ° F STEP 5 - Use the final subcooling valt ant temperature and pressure from S7 determine the proper liquid gage pres Table 14.2. Example: Assume a 122 F Final Su value and liquid temp of 902 F. 1. Locate 122 F Final Subcooling in 2. Locate the Liquid Temperarature the left column. 3. The Liquid Gage Pressure shouli proximately 327 PSI. (This is the sl the intersection of the Final Subcoc and the Liquid Temperature row. 0011/ L#q MIN. 11 -AC36D1 -7C-EN 15 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. Stop adding refrigerant when liquid line temperature and Liquid Gage Pressure matches the charging chart Final Subcooling value. Recover refrigerant if the Liquid Gage Pres- sure is higher than the chart value. STEP 7 - Stabilize the system. 1. Wait 20 minutes for the system condi- tion to stabilize between adjustments. Note: When the Liquid Line Temperature and Gage Pressure approximately match the chart, the system is properly charged. 2. Remove gages. 3. Replace service port caps to prevent leaks. Tighten finger tight plus an ad- ditional 1/6 turn. STEP 8 - Verify typical performance. Refer to System Pressure Curves in the Service Facts to verify typical performance. STEP 9 - Record System Information for reference Record system pressures and temperatures after charging is complete. Outdoor model number = Measured Outdoor Ambient = ° F Measured Indoor Ambient = ° F 20 MIN. Measured Liquid Line Temp = _ Measured Suction Line Temp = Liquid Gage Pressure = Suction Gage Pressure = °F °F PSI PSI 16 11-AC36D 1-7C-E N Fixed Orifice Superheat Charging Table Indoor Wet Bulb Temp (F) 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 55 7 9 10 11 12 14 15 17 18 20 21 23 24 26 27 29 30 60 5 7 8 9 10 12 13 15 16 18 19 21 22 24 25 27 28 30 31 65 4 6 8 10 11 13 14 16 17 18 19 21 22 24 25 27 28 27 31 70 5 7 8 10 11 13 14 16 17 18 19 21 22 24 25 27 28 30 31 75 5 6 7 9 10 12 14 16 18 19 21 22 24 26 28 29 31 32 Outdoor Dry 80 4 6 7 9 10 11 12 14 16 18 19 21 23 25 26 28 29 31 33 Bulb Temp. 85 4 6 7 9 10 13 14 16 18 20 21 23 24 26 28 29 30 31 32 (F) 90 4 6 8 10 11 13 14 16 18 20 22 24 25 27 28 30 31 95 4 6 8 10 13 14 16 18 20 22 23 25 26 28 29 100 6 8 10 12 13 16 18 20 21 23 25 27 29 105 4 6 7 9 11 13 15 18 20 22 24 26 28 110 4 7 9 11 13 16 18 21 23 26 28 115 6 9 12 1 14 16 19 21 24 26 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. ADD refrigerant to DECREASE total superheat. REMOVE refrigerant to INCREASE total superheat. Always allow 10 to 15 minutes of operature after any refrigerant or air flow change prior to determining the final superheat. 11-AC36 D 1-7C-EN 17 14.3 Weigh -In Method for Charging Weigh -In Method can be used for the initial installation, or anytime a system charge is being replaced. Weigh -In Method can also be used when power is not available to the equipment site or operating conditions (indoor/outdoor temperatures) are not in range to verify with the subcooling charging method. Calculating Charge Using the Weigh -In Method 1. Line length (ft) STEP 1 - Measure in feet the distance between the outdoor unit and the indoor unit and record on 2. Charge multiplier Line 1. Include the entire length of the line from the service valve to the IDU. 3. Step 1 x Step 2 STEP 2- Enter the charge multiplier (0.6 oz/ft). 4. Refrigerant Each linear foot of interconnecting tubing requires the addition of 0.6 oz of refrigerant. STEP 3- Multiply the total length of refrigerant tubing (Line 1) times the value on Step 2. Record the result on Line 3 of the Worksheet. STEP 4- This is the amount of refrigerant to weigh-in prior to opening the service valves. Section 15. Checkout Procedures and Troubleshooting 15.1 Operational And Checkout Procedures x 0.6 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. Also be sure that wiring connections are tight and properly secured. CHECKOUT PROCEDURE After installation has been completed, it is recommended that the entire system be checked against the following list: 1. Leak check refrigerant lines ......................................... [ 2. Properly insulate suction lines and fittings .................... [ 3. Properly secure and isolate all refrigerant lines............ [ 4. Seal passages through masonry. If mortar is used, prevent mortar from coming into direct contact with copper tubing ........................... [ 5. Verify that all electrical connections are tight ................ [ 6. Observe outdoor fan during on cycle for clearance and smooth operation ................................................... [ 7. Be sure that indoor coil drain line drains freely. Pour water intodrain pan................................................................ [ ] 8. Be sure that supply registers and return grilles are open and unobstructed.......................................................... [ l 9. Be sure that a return air filter is installed ...................... [ ] 10. Be sure that the correct airflow setting is used. (Indoor blower motor) ................................................... [ ] 11. Operate complete system in each mode to ensure safe operation ................................................... [ ] 18 1 1-AC36D1-7C-EN 15.2 Troubleshooting SYSTEM FAULTS CIRCUIT Head Pressure Too High Head Pressure Too Low Suction Pressure Too High Suction Pressure Too Low LiquidREFRIGERANT Refrig. Floodback�■■■■■■■■■■■■■■■�■■©©■©�■■■■■■ .pTube)Compressor ©■■■■■■■■■■■■■.■�■■©©■©■■■©■■■ I.D. Coil Frosting Runs Inadequate or No 1 ©■■■■■■■■■■■■■©�■■©■■■©�©©■©■■ Compressor & O.D. Fan Won't Start Compressor Will Not Start But O.D. Fan Runs O.D. Fan Won't Start Compressor Hums But Won't Start Compressor Cycles on IOL Unit Won't Initiate Defrost Defrost Terminates on Time C • Cooling H - Heating P - Primary Causes S • Secondary Causes * • 3 Phase Only 11 -AC36D1 -7C-EN 19 TROUBLESHOOTING Compressor fails to start Contactor check Is contactor engergized? YES Ij Go To: Compressor won't run NO Wait 3 minutes and check contactor Check for 24 volts AC coilagainacross contactor coil YES applicable, is TDR NO s voltage YES input voltage present at Replace contactor present ontactor coil? �NO NO Check ID Low Check control voltage transformer and transformer control fuse Zs the control YES dumper R to Y low Does th\ transformer voltage terminals contactor and fuse good? at thermostat sub energize? base. NO NO Repair or replace transformer or fuse. Investigate cause for Repair or replace failure (possible short in connecting wiring field wiring) Single Pole Contactor (MS)* OUT T9 T1 HIGH VOLTAGE IN ontactor C( 24 VAC Double Pole Contactor (MS)* 170 17 �UT HIGH VOLTAGE IN YES Replace the room thermostat LL LI 20 11 -AC36D1 -7C-EN TROUBLESHOOTING Compressor won't run Contactor is closed Check for high voltage to contactor Check for open IOL high voltage present YES (Internal Overload) at T1 and T2 ? Check resistance of CtoSand CtoR v NO Does the Check power esistance chec Allow compressor supply from show an open YES time to cool and disconnect and/or ircuit from C to re -test breaker panel. or C to R? NO FCheck for open windings. Des a resistance chec YES show an open circuit Replace the between R and S? compressor NO Check for locked rotor s,x6Itage pre nt Check Start - at C to S and C an YES Capacitor and to R with Relay (if present) o r amps o ? and Run Capacitor NO Check wiring to o the sta compressor components an C, S and R run capacitor/ NO Replace start components and/ or run capacitor YES Replace the compressor 11-AC36D1-7C-EN 21 Section 16. Refrigeration Circuits 6018, 6024 & 6035 Models FIELD INSTALLED INTER -CONNECTING TUBING INDOOR OUTDOOR SECTION SECTION 1/4 FLARE PRESSURE TAP REFRIGERANT FLOW SUCTION ..-..-. LINE FIELD LPCO CONNECTION 1 COMPRESSOR INDOOR COIL CHECK VALVE OUTDOOR COIL 1/4 rLAKL DISCHARGE DRIER PRESSURE L I NE TAP EXPANSION REFRIGERANT FLOW VALVE LIQUID LINE (TXV/EEV) FIELD PRINTED FROM D157394P01 CONNECTION 6030, 6036 & 6041 Models FIELD INSIALLED INTER -CONNECTING TUBING I ND00R I OUTDOOR UTDOOR SECTION I I SECT ION COIL 1/4 FLARE PRESSURE TAP REFRIGERANT FLOW SUCTION 7 LINE I I FIELD LPCO CONNECTION I I I I I I INDOOR COIL CHECK VALVE DRIER EXPANSION VALVE (TXV/EEV) I I FIELD CONNECTION COMPRESSOR HPCO- 1/4 FLARE DISCHARGE PRESSURE L I NE TAP \ REFRIGERANT FLOW `LIQUID LINE PRINTED FROM D158514P01 22 11 -AC36D1 -7C-EN 6042 & 6048 Models FIELD INSTALLED INTER -CONNECTING TUBING INDOOR OUTDOOR SECT ION 1/4 FLARE SECT I ON PRESSURE TAP REFRIGERANT FLOW SUCTION -.. L I NE LPCO FIELD CONNECTION INDOOR COIL EXPANSION VALVE (OR FCCV) FIELD CONNECTION DRIER SCROLL COMPRESSOR 1/4 FLARE PRESSURE TAP V DISCHARGE LINE LIQUID LINE REFRIGERANT FLOW I; • i 61.1 ••� OUTDOOR COIL Printed from D157878 FIELD INSTALLED INTER -CONNECTING TUBING INDOOR OUTDOOR , SECTION I , SECTION I/A FLARE PRESSURE TAP REFRIGERANT FLOW I SUCTION LINE FIELD I � LPCO CONNECTION i I I I I I I I I COMPRESSOR INDOOR COI L I I I I I HPCO--/'�C CHECK I � I � I ' VALVE I 1 1/4 FLARE DISCHARGE DR I ER I I PRESSURE TAP L I NE i O EXPANSION 1 REFRIGERANT FLOW VALVE LIOUID LINE (TXV/EEV) FIELD ' Printed from D159175 CONNECTION OUTDOOR COIL 11-AC36D1-7C-EN 23 6061 Model FIELD INSTALLED INTER -CONNECTING TUBING OUTDOOR INDOOR SECTION SECTION 1 /4 FLARE ' PRESSURE LINED AMPENER OUTDOOR DESUPERHEATER TAP (SEE NO TE 1) COIL COIL LPCO FIELD ' CONNECTIONS: SUCTION I LINE I INDOOR COIL I COMPRESSOR �7 W HPC CHECK VALVE 114 FLARE PRESSURE LIQUID TAP LINE IQ EXPANSION ' DISCHARGE VALVE FIELD LINE CONNECTION m DRIER I INDICATES DIRECTION OF � � REFRIGERATION FLOWW PRINTED FROM D156708 24 11 -AC36D1 -7C-EN 74*M?4" SiidVdo HEATING & AIR CONDITIONING 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. c � L u s LISTED The AHRI Certified mark indicates company participation in the AHRI Certification program. For verification of individual certified products, go to ahridirectory.org. The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices. 11-AC36D1-7C-EN 17 Dec 2021 Supersedes 11-AC36D1-7B-EN (April 2020) 0 2021 American Standard Heating and Air Conditioning