Table of Contents
Advertisement
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.
Note: R-454B refrigerant is an "A2L" refrigerant meaning: A = non-toxic, 2 = flammable, L = low burning velocity.
The term "A2L" is used throughout this document.
Table of Contents
Section 1. Safety ..................................................................................... 2
Section 2. Unit Location Considerations.............................................. 3
Section 3. Unit Preparation .................................................................... 4
Section 4. Setting the Unit ..................................................................... 4
Section 5. Refrigerant Line Considerations ......................................... 4
Section 6. Refrigerant Line Routing ..................................................... 5
Section 7. Refrigerant Line Brazing ...................................................... 7
Section 8. Refrigerant Line Leak Check ............................................... 8
Section 9. Evacuation ............................................................................. 8
Section 10. Service Valves ..................................................................... 8
Section 11. Electrical - Low Voltage ..................................................... 9
Section 12. Electrical - High Voltage .................................................. 11
Section 13. Start Up .............................................................................. 11
Section 14. System Charge Adjustment ............................................. 12
Section 15. Checkout Procedures ....................................................... 16
Section 16. Refrigeration Circuits........................................................18
Section 17. Wiring Diagrams................................................................20
Section 18. Pressure Curves................................................................23
Installation and Operation Manual
Condensing Units
5A7A5018 - 060
11-AC50D1-1C-EN
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for American Standard 5A7A5018A
Summary of Contents for American Standard 5A7A5018A
-
Page 1: Table Of Contents
11-AC50D1-1C-EN Installation and Operation Manual Condensing Units 5A7A5018 – 060 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 Only qualified personnel should install and service the The appliance shall be stored in a room without equipment. The installation, starting up, and servicing continuously operating ignition sources (for examples: of heating, ventilating, and air-conditioning equipment open flames, an operating gas appliance or an can be hazardous and requires specific knowledge operating electric heater). -
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) 5A7A5018A 37 x 30 x 33 5A7A5024A 33 x 30 x 33 5A7A5030A 37 x 30 x 33 5A7A5036A... -
Page 4: Section 3. Unit Preparation
5.1 Refrigerant Line and Service Valve Connection Sizes Table 5.1 Line Sizes Service Valve Connection Sizes RATED Vapor Liquid Vapor Line Liquid Line LINE SIZES Line Line Connection Connection 5A7A5018A 5/16 5/16 5A7A5024A 5/16 5/16 5A7A5030A 5/16 5/16 5A7A5036A 5/16 5/16 5A7A5042A 5/16... -
Page 5: Section 6. Refrigerant Line Routing
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 Liquid Line Vapor Line... -
Page 6: 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 7: Section 8. Refrigerant Line Leak Check
STEP 1 STEP 2 STEP 3 3-4” from valv STEP 4 STEP 5 Section 8. Refrigerant Line Leak Check 8.1 Check For Leaks After completion of field piping for split systems, the field pipework shall be pressure tested with nitrogen and then vacuum tested prior to refrigerant charging. -
Page 8: Section 9. Evacuation And Servicing
Section 9. Evacuation and Servicing 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 0350 and evacuation are complete. Microns STEP 1 - Evacuate until the micron gauge reads no higher than 350 microns, then close off the valve to the vacuum pump. -
Page 9: Section 10. Service Valves
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. - Page 10 11.2 Low Voltage Hook-up Diagrams With 5TEM6 With 5TEM4 With 5TAM5 Outdoor Outdoor Outdoor Thermostat Air Handler Thermostat Air Handler Thermostat Air Handler Unit Unit Unit 24 VAC HOT 24 VAC HOT 24 VAC HOT 24 VAC 24 VAC 24 VAC Common Common Common...
-
Page 11: Section 12. Electrical - High Voltage
With 5TEM6 With 5TEM4 With 5TAM5 Outdoor Outdoor Outdoor Thermostat Air Handler Thermostat Air Handler Thermostat Air Handler Unit Unit Unit 24 VAC HOT 24 VAC HOT 24 VAC HOT 24 VAC 24 VAC 24 VAC Common Common Common Blue Blue Blue COOL/HEAT... -
Page 12: Section 13. Start Up
12.2 High Voltage Disconnect Switch Install a separate disconnect switch at the outdoor unit. For high voltage connections, flexible electrical conduit is recommended whenever vibration 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. - Page 13 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. LIFT Vertical Change (Lift) = __________ Ft. STEP 2 - Determine the final subcooling target using total Line Length and Lift measured in STEP 1 and the charts below. Subcool Charging Corrections –...
- Page 14 Table 14.2 R-454B REFRIGERANT CHARGING CHART ° DESIGN SUBCOOLING ( LIQUID TEMP ( ° F) LIQUID GAUGE PRESSURE (PSI) 170 172 175 178 181 184 187 107 °F 184 187 190 194 197 200 203 200 203 206 210 213 217 220 217 220 223 227 230 234 238 234 238 241 245 249 252 256 252 256 260 264 268 272 276...
- Page 15 STEP 9 - Record System Information for Measured Suction Line Temp = __________ º F reference. Record system pressures and temperatures Liquid Ga ge Pressure = __________ PSI after charging is complete. Suction Ga ge Pressure = __________ PSI Outdoor model number = _________________ Measured Outdoor Ambient = __________ º...
-
Page 16: Section 15. Checkout Procedures
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/out- door temperatures) are not in range to verify with the subcooling charging method. - Page 17 15.2 Markings and Instructions [symbol ISO 7010-W021 (2011-05)] warning; flammable materials service indicator; read technical [symbol ISO 7000-1659 (2004-01)] manual A2L symbol warning; low burning velocity material [symbol ISO 7000-1701 (2004-01)] pressure ultraviolet radiation, [symbol IEC 60417-6040 2010-08)] instructional safeguard operator’s manual;...
-
Page 18: Section 16. Refrigeration Circuits
Section 16. Refrigeration Circuits 018, 030 & 042 Models PRINTED FROM D158514P01 024 & 036 Models PRINTED FROM D157394P01 11-AC50D1-1C-EN... - Page 19 048 & 060 Models Printed from D159175 16.1 Refrigerant Detection System The approved ID/OD combination will provide sufficient safe ventilation. Airflow provided is sufficient to cover minimum room area including adjustments for altitude. All systems require a refrigerant detection system so no altitude adjustment factors are required. Installer must ensure refrigerant detection system is connected and placed in appropriate orientation per application.
-
Page 20: Section 17. Wiring Diagrams
Section 17. Wiring Diagrams 11-AC50D1-1C-EN... - Page 21 11-AC50D1-1C-EN...
- Page 22 11-AC50D1-1C-EN...
-
Page 23: Section 18. Pressure Curves
Section 18. Pressure Curves COOLING PERFORMANCE CAN BE CHECKED WHEN THE OUTDOOR TEMP IS ABOVE 65 DEG F. TO CHECK COOLING PERFORMANCE, SELECT THE PROPER INDOOR CFM, ALLOW PRESSURES TO STABILIZE. MEASURE INDOOR WET BULB TEMPERATURE, OUTDOOR TEMPERATURE, LIQUID AND SUCTION PRESSURES. ON THE PLOTS LOCATE OUTDOOR TEMPERATURE (1); LOCATE INDOOR WET BULB (2);... - Page 24 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) 5A7A5024A1 5A7A5030A1 INDOOR ENTERING WET BULB CURVES 5A7A5036A1 TOP TO BOTTOM 71, 67, 63 AND 59 DEG F.
- Page 25 PRESSURE CURVES for 5A7A5060A1 INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F. Cooling OD Model @SCFM OUTDOOR TEMPERATURE (Degree F) 1450 5A7A5060A1 INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F. OUTDOOR TEMPERATURE (Degree F) 11-AC50D1-1C-EN...
- Page 26 About American Standard Heating and Air Conditioning American Standard has been creating com- The AHRI Certified mark indicates company participation in the fortable and affordable living environments for AHRI Certification program. For verification of individual certified products, go to ahridirectory.org.
Need help?
Do you have a question about the 5A7A5018A and is the answer not in the manual?
Questions and answers