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HomeMy WebLinkAbout3922 174th Pl Ne_BLD4267_2025 3922 174TH PL NE GAS FURNACE AND AC INSTALL MARK SNIDER 3922 174TH PL NE ARLINGTON WA 98223 2538860668 cyndicullison@hotmail.com HANNAH HAGEAGE 1415 BROADWAY EVERETT WA 98201 4252590550 HHAGEAGE@CMHEATING.COM CM HEATING 1415 BROADWAY EVERETT WA 98201 CMHEAI*095R4 12/2021 4252590550 HHAGEAGE@CMHEATING.COM AMSS8X1B060M3PSCA 80 ✔ 4A7A3030H1000N 13 ✔ ✔ 11/23/2021 HANNAH HAGEAGE CITY OF ARLINGTON 18204 59th Avenue NE, Arlington, WA 98223 INSPECTIONS: 360-403-3417 - Permit Center: 360-403-3551 BUILDING PERMIT 3922 174TH PL NE Permit #: 4267 PERMIT EXPIRES 180 DAYS AFTER Parcel #: 00934700001800 DATE OF ISSUANCE. Scope of Work: Gas furnace and AC install Valuation: .00 OWNER APPLICANT CONTRACTOR SNIDER MARK A & CYNTHIA CM Heating CM Heating Inc 3922 174TH PL NE 1415 Broadway 1415 Broadway ARLINGTON, WA 98223-3704 Everett, WA 98201 Everett, WA 98201 4252590550 425-259-0550 LIC: CMHEAI*095R4 EXP: 05/04/2023 MECHANICAL CONTRACTOR PLUMBING CONTRACTOR CM Heating Inc 1415 Broadway Everett, WA 98201 425-259-0550 LIC #: CMHEAI*095R4 EXP: 05/04/2023 LIC #: EXP: JOB DESCRIPTION PERMIT TYPE: Residential Mechanical CODE YEAR: 2018 STORIES: CONST. TYPE: DWELLING UNITS: OCC GROUP: BUILDINGS: OCC LOAD: PERMIT APPROVAL The issuance or granting of this permit shall not be construed to be a permit for, or approval of, any violation of this Code or any other ordinance or order of the City, of any state or federal law, or of any order, proclamation, guidance advice or decision of the Governor of this State. To the extent the issuance or granting of this permit is interpreted to allow construction activity during any period of time when such construction is prohibited or restricted by any state or federal law, or order, proclamation, guidance advice or decision of the Governor of this State, this permit shall not authorize such work and shall not be valid. The building official is authorized to prevent occupancy or use of a structure where in violation of this Code, any other City ordinances of this jurisdiction or any other ordinance or executive order of the City, or of any state or federal law, or of any order, proclamation, guidance advice or decision of the Governor. The building official is authorized to suspend or revoke this permit if it is determined to be issued in error or on the basis of incorrect, inaccurate or incomplete information, or in violation of any City ordinance, regulation or order, state or federal law, or any order, proclamation, guidance or decision of the Governor. I AGREE TO COMPLY WITH CITY AND STATE LAWS REGULATING CONSTRUCTION AND IN DOING THE WORK AUTHORIZED THEREBY; NO PERSON WILL BE EMPLOYED IN VIOLATION OF THE LABOR CODE OF THE STATE OF WASHINGTON RELATING TO WORKMEN'S COMPENSATION INSURANCE AND RCW 18.27. THIS APPLICATION IS NOT A PERMIT UNTIL SIGNED BY THE BUILDING OFFICIAL OR HIS/HER DEPUTY AND ALL FEES ARE PAID. IT IS UNLAWFUL TO USE OR OCCUPY A BUILDING OR STRUCTURE UNTIL A FINAL INSPECTION HAS BEEN MADE AND APPROVAL OR A CERTIFICATE OF OCCUPANCY HAS BEEN GRANTED. IBC110/IRC110. SALES TAX NOTICE: Sales tax relating to construction and construction materials in the City of Arlington must be reported on your sales tax return form and coded City of Arlington #3101. 12/8/2021 Signature Print Name Date Released By Date CONDITIONS 3" concrete pad with seismic bracing attached. Provide electrical disconnect. Lines shall be insulated; use of adhesive tapes are prohibited. Adhere to approved appliances. Approved job copy shall be onsite fir inspections; if applicable. Call for final inspection. THIS PERMIT AUTHORIZES ONLY THE WORK NOTED. THIS PERMIT COVERS WORK TO BE DONE ON PRIVATE PROPERTY ONLY. ANY CONSTRUCTION ON THE PUBLIC DOMAIN (CURBS, SIDEWALKS, DRIVEWAYS, MARQUEES, ETC.) WILL REQUIRE SEPARATE PERMISSION. PERMIT FEES Date Description Fee Amount 11/24/2021 Forced Air Heat $15.00 11/24/2021 Heat Pump/Heat Exchangers $25.00 11/24/2021 Mechanical Base $25.00 11/24/2021 Processing/Technology $25.00 11/24/2021 Inspection $75.00 Total Due: $165.00 Total Payment: $0.00 Balance Due: $165.00 CALL FOR INSPECTIONS Call by 3:30 pm for next day inspection, allow 48 hours for Fire Inspections When calling for an inspection please leave the following information: Permit Number, Type of Inspection being requested, and whether you prefer morning or afternoon 11-AC29D1-8-EN Installer’s Guide Condensing Units 4A7A3 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. All of the manufacture’s split systems are AHRI rated only with TXV/EEV indoor systems. Some of the benefits of installing approved matched indoor and out- door 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 ....................................................................5 Section 4. Setting the Unit .....................................................................5 Section 5. Refrigerant Line Considerations .........................................6 Section 6. Refrigerant Line Routing .....................................................8 Section 7. Refrigerant Line Brazing ......................................................8 Section 8. Refrigerant Line Leak Check .............................................10 Section 9. Evacuation ...........................................................................12 Section 10. Service Valves ...................................................................12 Section 11. Electrical - Low Voltage ....................................................13 Section 12. Electrical - High Voltage ...................................................15 Section 13. Start Up ..............................................................................16 Section 14. System Charge Adjustment .............................................17 Section 15. Checkout Procedures and Troubleshooting ...................22 Section 16. Refrigerant Circuits ..........................................................26 Section 1. Safety ! WARNING ! WARNING This information is intended for use by individuals LIVE ELECTRICAL COMPONENTS! possessing adequate backgrounds of electrical and During installation, testing, servicing, and trouble- mechanical experience. Any attempt to repair a central shooting of this product, it may be necessary to work air conditioning product may result in personal injury with live electrical components. Failure to follow all and/or property damage. The manufacture or seller electrical safety precautions when exposed to live cannot be responsible for the interpretation of this electrical components could result in death or serious information, nor can it assume any liability in connec- injury. tion with its use. ! CAUTION ! WARNING If using existing refrigerant lines make certain that all These units use R-410A refrigerant which operates joints are brazed, not soldered. at 50 to 70% higher pressures than R-22. Use only R-410A approved service equipment. Refrigerant cylinders are painted a “Rose” color to indicate the ! CAUTION type of refrigerant and may contain a “dip” tube to Scroll compressor dome temperatures may be hot. Do allow for charging of liquid refrigerant into the sys- not touch the top of compressor; it may cause minor to tem. All R-410A systems use a POE oil that readily severe burning. absorbs moisture from the atmosphere. To limit this “hygroscopic” 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 or APP-APG012-EN. ! WARNING 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. ! WARNING 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. 2 11-AC29D1-8-EN Section 2. Unit Location Considerations 2.1 Unit Dimensions and Weight Table 2.1 Unit Dimensions and Weight W Models H x D x W (in) Weight* (lb) 4A7A3018H 29 x 26 x 29 133 4A7A3024H 29 x 26 x 29 130 4A7A3030H 29 x 26 x 29 137 4A7A3036H 29 x 30 x 33 147 4A7A3042E 29 x 30 x 33 172 H 4A7A3048E 37 x 30 x 33 184 4A7A3060D 37 x 34 x 37 226 * Weight values are estimated. When mounting the outdoor unit on a roof, be sure the roof will support the unit’s weight. D 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*. Standard Line Set 150’ Max TOTAL Line Length 3. Standard and alternate line sizes and service valve connection sizes are shown in Table 5.1. 50’ * See Table 5.1 for exceptions for certain Max tonnages. Vertical Change Note: For other line lengths, Refer to Refriger- ant Piping Application Guide, SS-APG006-EN or Refrigerant Piping Software Program, 32- 3312-xx (latest revision). 50’ Max Vertical Change 11-AC29D1-8-EN 3 2.3 Suggested Locations for Best Reliability Ensure the top discharge area is unrestricted for at least five (5) feet above the unit. Avoid Install Near Bedrooms Three (3) feet clearance must be provided in front of the control box (access panels) and any other side requiring service. Min 5’ Unrestricted It is not recommended to install in a location Min 3’ where noise may distract the building occu- Min. 12” to Unrestricted Shrubbery pants. Some examples of these types of loca- tions are sleeping quarters and by windows of a living area. Please discuss location with the Access Panel building owner prior to installation. Avoid locations such as near windows where condensation and freezing defrost vapor can annoy a customer. Position the outdoor unit a minimum of 12” from any wall or surrounding shrubbery to ensure adequate airflow. Min. 12” to Min. 12” Outdoor unit location must be far enough away Shrubbery to Wall from any structure to prevent excess roof runoff water or icicles from falling directly on the unit. 2.4 Cold Climate Considerations NOTE: It is recommended that these precau- tions be taken for units being installed in areas where snow accumulation and prolonged below freezing temperatures occur. • Units should be elevated 3-12 inches above the pad or roof top, depending on local weather. This additional height will allow Min. 12” drainage of snow and ice melted during defrost cycle prior to its refreezing. Ensure Snow that drain holes in unit base pan are not Barrier obstructed preventing draining of defrost water. Snow Legs • If possible, avoid locations that are likely to 3-12” Elevation accumulate snow drifts. If not possible, a snow drift barrier should be installed around Pad the unit to prevent a build-up of snow on the sides of the unit. 4 11-AC29D1-8-EN 2.5 Coastal Considerations 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 prompt- ly to the carrier any damage found to the unit. STEP 2 - To remove the unit from the pallet, remove tabs by cutting with a sharp tool. 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. 11-AC29D1-8-EN 5 Section 5. Refrigerant Line Considerations 5.1 Refrigerant Line and Service Valve Connection Sizes Table 5.1 Line Sizes Service Valve Connection Sizes Max Line & Lift Lengths RATED LINE SIZES Vapor Liquid Vapor Line Liquid Line TOTAL Max Max Lift (ft.) Line Line Connection Connection Line Length (ft.) 4A7A3018H 3/4 3/8 3/4 3/8 150 50 4A7A3024H 3/4 3/8 3/4 3/8 150 50 4A7A3030H 3/4 3/8 3/4 3/8 150 50 4A7A3036H 3/4 3/8 3/4 3/8 150 50 4A7A3042E 7/8 3/8 7/8 3/8 150 50 4A7A3048E 7/8 3/8 7/8 3/8 150 50 4A7A3060D 7/8 3/8 7/8 3/8 150 50 Note: For other line lengths, Refer to Refrigerant Piping Application Guide, SS-APG006-EN or Refrigerant Piping Software Program, 32-3312-xx (latest revision). 6 11-AC29D1-8-EN 5.2 Factory Charge American Standard outdoor condensing units are factory charged with the system charge required for the out- door condensing unit, fifteen (15) feet of tested connecting line, and the smallest indoor evaporative coil match. If connecting line length exceeds fifteen (15) feet and/or a larger indoor evaporative coil is installed, then final refrigerant charge adjustment is necessary. 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. Line Length 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) Vapor Line Liquid Line contact. Insulation 11-AC29D1-8-EN 7 5.5 Reuse Existing Refrigerant Lines ! CAUTION 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 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 90º turns. 8 Feet Maximum Joist/Rafter Isolator Side View 8 Feet Maximum Line Set 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. Isolation From Joist/Rafter 8 11-AC29D1-8-EN 8 Feet Maximum Wall Isolator Line Set 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 Ductwork Insulation Vapor Line Isolator Line Set Isolation Through Wall DO NOT hang line sets from ductwork 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. 11-AC29D1-8-EN 9 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. 3-4” from valve 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. 10 11-AC29D1-8-EN 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. 150 PSIG STEP 2 - Check for leaks by using a soapy solu- tion or bubbles at each brazed location. Remove nitrogren pressure and repair any leaks before continuing. 11-AC29D1-8-EN 11 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. 0350 Microns STEP 1 - Evacuate until the micron gauge reads no higher than 350 microns, then close off the valve to the vacuum pump. ON OFF 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 1 MIN. 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. 1/4 TURN ONLY CAP COUNTERCLOCKWISE FOR FULL OPEN NOTE: Do not vent refrigerant gases into the POSITION atmosphere. VALVE STEM STEP 1 - Remove valve stem cap. STEP 2 - Using an adjustable wrench, turn valve UNIT SIDE stem 1/4 turn counterclockwise to the fully open OF VALVE position. STEP 3 - Replace the valve stem cap to prevent leaks. Tighten finger tight plus an additional 1/6 PRESSURE TAP PORT turn. GAS LINE CONNECTION 12 11-AC29D1-8-EN 10.1 Open the Liquid Service Valve ! WARNING Cap 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. Unit Side 3/16” Hex Wrench Failure to follow this warning will result in abrupt of Service release of system charge and may result in Valve personal injury and /or property damage. Rolled Edge to Captivate Stem Important: Leak check and evacuation must be completed before opening the service valves. Hex Headed Valve System 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.) Service Port 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 Table 11.1 low voltage wiring from the outdoor unit, to the 24 VOLTS indoor unit, and to the thermostat. WIRE SIZE MAX. WIRE LENGTH 18 AWG 150 Ft. 16 AWG 225 Ft. 14 AWG 300 Ft. 11-AC29D1-8-EN 13 11.2 Low Voltage Hook-up Diagrams With TEM 3, 4, 6With TAM 4, 7 Outdoor Outdoor Thermostat Air Handler Thermostat Air Handler Unit Unit 24 VAC HOT R R 24 VAC HOT R R FAN G G FAN G G ** 24 VAC B/C B B 24 VAC B/C B B Common Common Blue Blue SOV O SOV O COOL/HEAT Y Y1 Y COOL/HEAT Y Y 1st STAGE 1st STAGE l l Y2* YO YO HEATING W1 HEATING W1 2nd STAGE W1 2nd STAGE W1 White White EMERGENCY W2 EMERGENCY W2 HEAT W2 HEAT W2 Pink Pink BK BK BK BK WH/BLK WH/BLK WH/BLK WH/BLK • 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 Outdoor Outdoor Thermostat Furnace Thermostat Furnace Unit Unit 24 VAC HOT R R 24 VAC HOT R R FAN G G FAN G G 24 VAC B/C B B 24 VAC B/C B B Common Common O COOL Y1 Y Y COOL Y1 Y Y ** Y LO HEATING W1 W1 HEATING W1 W1 **W2 W2 W2 W2 BK BK ** • 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 14 11-AC29D1-8-EN Section 12. Electrical - High Voltage 12.1 High Voltage Power Supply ! WARNING 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. 11-AC29D1-8-EN 15 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. OFF DONE CANCEL STEP 3 - Turn on disconnect(s) to apply power to the indoor and outdoor units. ON OFF STEP 4 - Wait one (1) hour before starting the unit if compressor crankcase heater acces- sory is used and the Outdoor Ambient is below 70ºF. 60 MIN. STEP 5 - Set system thermostat to ON. ON DONE CANCEL 16 11-AC29D1-8-EN Section 14. System Charge Adjustment 14.1 Temperature Measurements STEP 1 - Check the outdoor temperatures. 120º F Subcooling (in cooling mode) is the only recom- See Section 14.2 for mended method of charging above 55º F ambi- Outdoor ent outdoor temperature. See Section 14.2. Temperatures 55º F Above 55º F Outdoor Temp 1 For outdoor temperatures below 55º F, see Sec- tion 14.3. See Section 14.3 for Note: It is important to return in the spring or Outdoor summer to accurately charge the system in the Temperatures cooling mode when outdoor ambient tempera- Below 55º F 55º F ture is above 55º F. Outdoor Temp 2 For best results the indoor temperature should be kept between 70º F to 80º F. 80º F 70º F Indoor Temp 14.2 Subcooling Charging in Cooling (Above 55º 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. LIFT 11-AC29D1-8-EN 17 STEP 2 - Determine the final subcooling value using total Line Length and Lift measured in STEP 1 and the charts below. 1.5 Ton Units 2 Ton Units SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) 50 Add 1° 4° 50 1° FT (FT) FT (FT) Add 2° LI 40 Add 1° Add 2° LI 40 Add 1° NE 30 1° NE 30 Add 1° LI LI 25 Use Design Subcooling 1° 25 Use Design Subcooling 15 Add 1° 15 RANT RANT 10 10 IGE IGE 0 0 FR FR RE 20 30 40 50 60 70 80 90 100110 120 130 140 150 RE 20 30 40 50 60 70 80 90 100110 120 130 140 150 TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ] TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ] 2.5 Ton Units 3 Ton Units SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) 50 1° 50 4° FT (FT) Add 2° FT (FT) LI 40 Add 1° LI 40 Add 1° Add 2° NE 30 Add 1° NE 30 Add 1° LI LI 25 Use Design Subcooling 25 Use Design Subcooling 15 1° 15 1° RANT RANT 10 10 IGE IGE 0 0 FR FR RE 20 30 40 50 60 70 80 90 100110 120 130 140 150 RE 20 30 40 50 60 70 80 90 100110 120 130 140 150 TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ] TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ] 3.5 Ton Units 4 Ton Units SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) 50 Add 4° 50 1° Add 4° FT (FT) FT (FT) LI 40 Add 1° LI 40 1° Add 2° Add 2° NE 30 Add 1° NE 30 Add 1° LI LI 25 Use Design Subcooling 25 Use Design Subcooling 15 Add 1° 15 Add 1° RANT RANT 10 10 IGE IGE 0 0 FR FR RE 20 30 40 50 60 70 80 90 100110 120 130 140 150 RE 20 30 40 50 60 70 80 90 100110 120 130 140 150 TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ] TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ] 5 Ton Units SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) Design Subcooling Value = __________º F 50 1° Add 4° FT (FT) (from nameplate or Service Facts) LI 40 1° NE 30 Add 2° LI Add 1° 25 Use Design Subcooling 15 Subcooling Correction = __________º F RANT 10 Add 1° IGE 0 1° FR RE 20 30 40 50 60 70 80 90 100 110 120 130 140 150 Final Subcooling Value = __________º F TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ] 18 11-AC29D1-8-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- 20 MIN. 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 = __________ º F Liquid Gage Pressure = __________ PSI Final Subcooling Value = __________ º F 107 °F STEP 5 - Use the final subcooling value, refriger- Table 14.2 ant temperature and pressure from STEP 4, to determine the proper liquid gage pressure using R-410A REFRIGERANT CHARGING CHART Table 14.2. FINAL SUBCOOLING (°F) LIQUID TEMP 89 10 11 12 13 14 (°F) LIQUID GAGE PRESSURE (PSI) Example: Assume a 12º F Final Subcooling 55 179 182 185 188 191 195 198 value and liquid temp of 90º F. 60 195 198 201 204 208 211 215 65 211 215 218 222 225 229 232 70 229 232 236 240 243 247 251 1. Locate 12º F Final Subcooling in Table 14.2. 75 247 251 255 259 263 267 271 2. Locate the Liquid Temperarature (90º F) in 80 267 271 275 279 283 287 291 the left column. 85 287 291 296 300 304 309 313 3. The Liquid Gage Pressure should be ap- 90 309 313 318 322 327 331 336 proximately 327 PSI. (This is the shown as 95 331 336 341 346 351 355 360 the intersection of the Final Subcooling column 100 355 360 365 370 376 381 386 and the Liquid Temperature row. 105 381 386 391 396 402 407 413 110 407 413 418 424 429 435 441 115 435 441 446 452 458 464 470 120 464 470 476 482 488 495 501 125 495 501 507 514 520 527 533 From Dwg. D154557P01 Rev. 3 11-AC29D1-8-EN 19 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 20 MIN. 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. (Example only - see Pressure Tables) R-410A REFRIGERANT CHARGING CHART DESIGN SUBCOOLING (°F) LIQUID TEMP 89 10 11 12 13 14 (°F) LIQUID GAGE PRESSURE (PSI) Refer to System Pressure Tables to verify typical 55 179182 185188 191195 198 60 195198 201204 208211 215 performance. 65 211215 218222 225229 232 70 229232 236240 243247 251 75 247251 255259 263267 271 80 267271 275279 283287 291 85 287291 296300 304309 313 90 309313 318322 327331 336 95 331336 341346 351355 360 100355 360365 370376 381386 105381 386391 396402 407413 110407 413418 424429 435441 115435 441446 452458 464470 120464 470476 482488 495501 125495 501507 514520 527 533 Refer to Service Facts or Installer's Guide for charging method. OD13/14SEERAConly 18 24/2530/31 36/3742/43 48 60 ODTemp IDWetBulb SuctionPressure 110 71 160 159 156 157 158 154158 67 154 152 150 149 150148 148 63 148 144144142 142 140 140 59 142 137 138 135 135132 132 10071 156 155152 153154 152 154 67 150 148 146 145147 144 146 63 144 141 140 138 138136 138 59 138 134 134132 131130 130 90 71 152 152150 149 152 148 150 67 146 145 144143 143 142 142 63 140 138 138 135 136 134 134 59 136 131 132 129129128126 80 71 150 149148 147150 146148 67 144142 142 141 141 138 140 63 138135 136 133 134 132 132 59 134129 130 127 127 126 124 70 71 148147 146 145147 144146 67 142140 140138 139 136 138 63 136 133 134131 132 130 130 59 130126 128125 125124 122 6071 146 145 144 143 145 142 144 67 140 138 138136 137134 136 63 134 131 132129 130128 128 20 59 128 124 126123 123111-AC29D1-8-EN22120 ODTemp LiquidPressure 115 475483 480 480485 480 505 110 445453450 450 455450 470 105 415425420 420 425425 440 100 390398 390 395 398 395 415 95 360 370 365370 373 370 385 90 340 345 340345 348 345 360 85 315 323 320320 325 320 335 80 295 300 295 300 300 300 315 75 270 280275 275280280 290 70 250260 255 255 260 260 270 65 235 240 235 240240240 250 60 215 220 220 220 223 220 235 STEP 9 - Record System Information for refer- ence. Record system pressures and temperatures after charging is complete. Outdoor model number = _________________ Measured Suction Line Temp = __________ º F Measured Outdoor Ambient = __________ º F Liquid Gage Pressure = __________ PSIG Measured Indoor Ambient = __________ º F Suction Gage Pressure = __________ PSIG Measured Liquid Line Temp = __________ º F 14.3 Subcooling Charging Below 55º F Outdoor Temp. The Subcooling Charging method in cooling is not recommended below 55º F outdoor temperature. The recommended method of charging at outdoor temperatures below 55º F is weighing in the charge. Return when weather conditions permit charge verification through subcooling. STEP 1 - Determine additional charge. Note: The nameplate charge value represents Weigh-In Method can be used for the initial the amount of refrigerant shipped in the outdoor installation, or anytime a system charge is being unit and is compatible with 15 feet of AHRI rated replaced. Weigh-In Method can also be used refrigerant lines and the smallest AHRI rated when power is not available to the equipment coil. site or operating conditions (indoor/outdoor temperatures) are not in range to verify with the Using the method below, find the charge associ- subcooling charging method. ated with the additional length of tubing above 15 ft. and record it below. Calculating Charge Using the Weigh-In Method 1) Measure in feet the distance between the 1. Total Line length (ft) –15 ft ______________ outdoor unit and the indoor unit. (Include the entire length of the line from the service 2. Charge multiplier x ___0.6 oz _____ valve to the IDU.) Subtract 15 ft from this entire length and record on line 1. 3. Step 1 x Step 2 = _____________ 2) Enter the charge multiplier (0.6 oz/ft). Each 4. Refrigerant (oz) = _____________ linear foot of interconnecting tubing requires the addition of 0.6 oz of refrigerant. 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. 4) This is the amount of refrigerant to weigh-in prior to opening the service valves. 11-AC29D1-8-EN 21 STEP 2 - Stabilize the system by operating for a minimum of 20 minutes. 20 MIN. 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 3 - Check the liquid line temperature and Measured Liquid Line Temp = __________ º F liquid gage pressure to obtain a minimum of 10º subcooling in heating mode. Liquid Gage Pressure = __________ PSIG STEP 4 - Add charge if a minimum of 10º sub- cooling is not obtained with the namplate charge plus additional charge previously added. STEP 5 - Return to site for adjustment. Important: Return in the spring or summer to accurately charge the system in the cooling mode with outdoor ambient above 55º F. Section 15. Checkout Procedures and Troubleshooting 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. 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. ........................................ [ ] 7. Be sure that indoor coil drain line drains freely. Pour water into drain pan. ............................................................... [ ] 2. Properly insulate suction lines and fittings. ................... [ ] 8. Be sure that supply registers and return grilles are open 3. Properly secure and isolate all refrigerant lines. ........... [ ] and unobstructed. ......................................................... [ ] 4. Seal passages through masonry. 9. Be sure that a return air filter is installed. ..................... [ ] If mortar is used, prevent mortar from coming into direct contact with copper tubing. .......................... [ ] 10. Be sure that the correct airflow setting is used. (Indoor blower motor) ................................................... [ ] 5. Verify that all electrical connections are tight. ............... [ ] 11. Operate complete system in each mode to 6. Observe outdoor fan during on cycle for clearance ensure safe operation. .................................................. [ ] and smooth operation. .................................................. [ ] 22 11-AC29D1-8-EN 15.2 Troubleshooting TROUBLESHOOTING Compressor fails to start Contactor check Is contactor YES energized? Go To: Compressor won’t run (contacts closed) NO Check for 24 volts AC across contactor coil Is voltage YES present at Replace contactor contactor coil? NO Check control transformer and control fuse Is the control Jumper R to Y low YES voltage terminals Does the YES Replace the room transformer contactor thermostat 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)* Double Pole Contactor (MS)* OUT T2 T1 T2 T1 OUT HIGH HIGH VOLTAGE VOLTAGE Contactor Coil 24 VAC IN L2 L1 L2 L1 IN *Refer to Wiring Diagram to determine if a single pole or double pole contactor is used. 11-AC29D1-8-EN 23 TROUBLESHOOTING Compressor won’t run Contactor is closed Check for high voltage to contactor Check for open IOL Is high voltage present YES (Internal Overload) at T1 and T2 ? Check resistance of C to S and C to R NO Does the Check power resistance check Allow compressor supply from YES show an open time to cool and disconnect and/or circuit from C to S re-test breaker panel. or C to R? NO Check for open windings. Does a resistance check YES Replace the show an open circuit compressor between R and S? NO Check for locked rotor Is voltage present Check Start- at C to S and C YES Capacitor and to R with locked Relay (if present) rotor amps on C? and Run Capacitor NO Check wiring to Do the start components and YES Replace the compressor C, S and R run capacitor compressor check good? NO Replace start components and/ or run capacitor 24 11-AC29D1-8-EN 15.2 Troubleshooting CONT O. REF DEFR WHA CONT EXCESSIVE D. CHECK HIGH LO STUCK TXV/EEV SO * DEFR . RO LO REF NONCONDENSABLESAIR C OST T W INEFFICIENT REF RES V COMPRESSOR ST AC RE IR. TO VO VO L CONT W . COIL PO RU AR TO UNDERCHARGE. RECIRCULA S. VA OST TRANSFORMER VO . RESTRICTION CONTR CHECK LT N T ST LT COMPRESSOR O O. STUCK SO LV WER AG R AG THERMOSAC LT VERCHARGE I.D SYSTEM FAULTS CAP CAP AR EV D. SUPERHEA V DEFECTIVEE RELA C AG . E ONT E TO AP AIRFLO AIRFLO T LEAKIN LEAKING SUPPL WIRING A A W R E . OL MOD CIT CIT R IRING COM OPEN Y ELA AC COIL F LO TION USE DEF DEF IOL OR OR TS TAT AD E Y Y P. W T W S G . . REFRIGERANT CIRCUIT C P P S P S S Head Pressure Too High H P P S P S C S P S S S S S P Head Pressure Too Low H S P S S S S P C S P P S P P Suction Pressure Too High H S S P C P S P S S Suction Pressure Too Low H P S S S S C P P Liquid Refrig. Floodback (TXV/EEV) H P P Liquid Refrig. Floodback C P S S S P (Cap. Tube) H P S S S S C P S S I.D. Coil Frosting H Compressor Runs C S P S S S P S S S S Inadequate or No Cooling/Htg H S P S S P S S S ELECTRICAL Compressor & O.D. Fan C P P S P S P P Won’t Start H P P S P S P P Compressor Will Not Start C P S P S S S P But O.D. Fan Runs H P S P S S S P C P P S O.D. Fan Won’t Start H P P S C P S S S P Compressor Hums But Won’t Start H P S S S P C P S P S S S P S P P S S S S S Compressor Cycles on IOL H P S P S S S P S P P S S S P S C P P S P S S I.D. Blower Won’t Start H P P S P S S DEFROST C Unit Won’t Initiate Defrost H P PP C Defrost Terminates on Time H P P C Unit Icing Up H P S S S P P C - Cooling H - Heating P - Primary Causes S - Secondary Causes * - 3 Phase Only 11-AC29D1-8-EN 25 16.0 Refrigerant Circuits 1.5 & 2 Ton Units PRINTED FROM D157394P02 REV A 2.5 & 3.5 Ton Units PRINTED FROM D157394P01 26 11-AC29D1-8-EN 3 & 4 Ton Units PRINTED FROM D158796P01 REV A 5 Ton Units PRINTED FROM C151867 11-AC29D1-8-EN 27 The manufacturer has a policy of continuous product and product data improvement and it reserves the right to change design and specifications without notice. 6200 Troup Highway Representative-only illustrations included in this document. 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