Summary of Contents for American Standard 4A6C4036A3000A
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Split System Heat Pump 3–Phase, 230V 3–Phase, 460V 2 2 3 3 0 0 V V M M O O D D E E L L S S 4A6C4036A3000A 4A6C4042A3000A 4A6C4048A3000A 4A6C4060A3000A 4 4 6 6 0 0 V V M M O O D D E E L L S S...
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SAFETY SECTION I I m m p p o o r r t t a a n n t t — This document contains a wiring diagram C C A A U U T T I I O O N N and service information.
Unit Location Considerations Table 1. Unit Dimensions and Weight H x D x W (in) Weight * (lb) Models 4A6C4036A3 29 x 34 x 37 4A6C4042A3 29 x 34 x 37 4A6C4048A3 33 x 34 x 37 4A6C4060A3 45 x 34 x 37 4A6C4036A4 29 x 34 x 37 4A6C4042A4...
Table 2. Suggested Locations for Best Reliability • Ensure the top discharge area is unrestricted for at least 5 feet above the unit. • Provide at least 3 feet clearance in front of the control box (access panels) and any other side requiring service. •...
Unit Preparation 1. Check for damage and report promptly to the carrier any damage found to the unit. 1. To remove the unit from the pallet, remove tabs by cutting with a sharp tool. Setting Up the Unit Table 4. Pad Installation When installing the unit on a support pad, such as a concrete slab, consider the following: •...
U U n n i i t t P P r r e e p p a a r r a a t t i i o o n n Refrigerant Line Considerations Table 5. Refrigerant Line and Service Valve Connection Sizes Line Sizes Service Valve Connection Sizes Vapor Line...
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U U n n i i t t P P r r e e p p a a r r a a t t i i o o n n Table 8. 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.
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U U n n i i t t P P r r e e p p a a r r a a t t i i o o n n Table 11. Isolation From Joist/Rafter Secure Vapor Line from joists using isolators every 8 ft. Secure Liquid Line directly to insulated Vapor Line using tape, wire, or other appropriate method every 8 ft.
Refrigerant Line Brazing Table 14. Braze the Refrigerant Lines Remove caps or plugs. Use a deburring tool to debur the pipe ends. Clean both internal and external surfaces of the tubing using an emery cloth. Remove the pressure tap cap and valve core from each service valves.
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R R e e f f r r i i g g e e r r a a n n t t L L i i n n e e B B r r a a z z i i n n g g Table 14.
Refrigerant Line Leak Check Table 15. Check for Leaks Pressurize the refrigerant lines and evaporator coil to 150 PSIG using dry nitrogen. Check for leaks by using a soapy solution at each brazed location. Note: Remove nitrogen pressure and repair any leaks before continuing.
Service Valves Table 16. 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. Remove valve stem cap. Using a wrench, turn valve stem 1/4 turn counterclockwise to the fully open position.
Electrical — Low Voltage Table 18. Low Voltage Maximum Wire Length 24 VOLTS The table defines the maximum total length of low voltage wiring WIRE SIZE MAX. WIRE LENGTH from the outdoor unit, to the indoor unit, and to the thermostat. 18 AWG 150 Ft 16 AWG...
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E E l l e e c c t t r r i i c c a a l l — — L L o o w w V V o o l l t t a a g g e e Table 20.
Electrical — High Voltage Table 21. High Voltage Power Supply W W A A R R N N I I N N G G L L I I V V E E E E L L E E C C T T R R I I C C A A L L C C O O M M P P O O N N E E N N T T S S ! ! F F a a i i l l u u r r e e t t o o f f o o l l l l o o w w t t h h i i s s W W a a r r n n i i n n g g c c o o u u l l d d r r e e s s u u l l t t i i n n p p r r o o p p e e r r t t y y d d a a m m a a g g e e , , s s e e v v e e r r e e p p e e r r s s o o n n a a l l i i n n j j u u r r y y , , o o r r d d e e a a t t h h .
System Start Up Set the system thermostat to OFF. Turn on electrical power disconnect(s) to apply power to the indoor and outdoor units. Wait one (1) hour before starting the unit if compressor crankcase heater accessory is used and the Outdoor Ambient is below 70°F. 60 MIN.
S S y y s s t t e e m m S S t t a a r r t t U U p p Set the system thermostat to ON. System Charge Adjustment Table 24. Temperature Measurements Check the outdoor temperatures. Subcooling using “Charging Mode-Cooling”...
Subcooling Charging in Cooling between 55° F and 120° OD Ambient [brand name] has always recommended installing [brand name] approved matched indoor and outdoor systems. All [brand name] split systems are AHRI rated with only TXV indoor systems. The benefits of installing approved indoor and outdoor split systems are maximum efficiency, optimum performance and the best overall reliability.
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SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) Add 1° 4° Add 4° Add 1° Add 2° Add 1° Add 2° 1° Add 1° Use Design Subcooling 1° Use Design Subcooling Add 1°...
Charging the Unit Table 26. Proper Gage Pressure Using the “Refrigerant Charging Chart,” p. 23adjust refrigerant level to attain proper gage pressure. Add refrigerant if the Liquid Gage Pressure is lower than the chart value. Connect gauges to refrigerant bottle and unit as illustrated. Purge all hoses.
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C C h h a a r r g g i i n n g g t t h h e e U U n n i i t t Table 29. System Information Record system pressures and temperatures after charging is complete.
Checkout Procedures The final phase of the installation is the system Checkout Procedures. The following list represents the most common items covered in a Checkout Procedure. Confirm all requirements in this document have been met. All wiring connections are tight and properly secured. Supply registers and return grilles are open, unobstructed, and air filter is installed.
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