Table of Contents
Advertisement
Quick Links
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 A.H.R.I. rated only with TXV/EEV indoor 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.............................................. 4
Section 3. Unit Preparation .................................................................... 5
Section 4. Setting the Unit ..................................................................... 5
Section 5. Refrigerant Line Considerations ......................................... 6
Section 6. Refrigerant Line Routing ..................................................... 7
Section 7. Refrigerant Line Brazing ...................................................... 8
Section 8. Refrigerant Line Leak Check ............................................... 9
Section 9. Evacuation ............................................................................. 9
Section 10. Service Valves ..................................................................... 9
Section 11. Electrical - Low Voltage ................................................... 10
Section 12. Electrical - High Voltage .................................................. 11
Section 13. Start Up .............................................................................. 12
Section 14. System Charge Adjustment ............................................. 12
Section 15. Checkout Procedures ....................................................... 16
Section 16. Defrost Control ................................................................. 17
Section 17. Troubleshooting ................................................................ 20
Section 18. Wiring Diagrams ............................................................... 22
Section 19. Pressure Curves ............................................................... 27
Section 20. Refrigerant Circuit (only for reference)........................... 32
Installation and Operation Manual
Heat Pumps
A5HP4
88-A5HP4001-1A-EN
Advertisement
Table of Contents
Related Manuals for Trane A5HP4
Summary of Contents for Trane A5HP4
-
Page 1: Table Of Contents
88-A5HP4001-1A-EN Installation and Operation Manual Heat Pumps A5HP4 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 The appliance shall be stored in a room without contin- Only qualified personnel should install and service the uously operating ignition sources (for examples: open equipment. The installation, starting up, and servicing flames, an operating gas appliance or an operating of heating, ventilating, and air-conditioning equipment electric heater). -
Page 3: Section 2. Unit Location Considerations
Section 2. Unit Location Considerations 2.1 Unit Dimensions and Weight Piping material, pipe routing, and installation shall include protection from physical damage in operation and service, and be in compliance with national and local codes and standards. All field joints shall be accessible for inspection prior to being covered or enclosed. -
Page 4: Section 3. Unit Preparation
2.4 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. -
Page 5: Section 5. Refrigerant Line Considerations
Section 5. Refrigerant Line Considerations 5.1 Refrigerant Line and Service Valve Connection Sizes Table 5.1 Line Sizes Service Valve Connection Sizes Vapor Liquid Vapor Line Liquid Line Model Line Line Connection Connection A5HP4018D 5/16 5/16 A5HP4024D 5/16 5/16 A5HP4030D 5/16 5/16 A5HP4036D 5/16... -
Page 6: Section 6. Refrigerant Line Routing
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: •... -
Page 7: Section 7. Refrigerant Line Brazing
Wall Sealant Insulation Ductwork Vapor Line Isolator Line Set DO NOT hang line sets from ductwork Isolation Through Wall Section 7. Refrigerant Line Brazing 7.1 Braze The Refrigerant Lines STEP 1 - Remove caps or plugs. Use a deburing tool to debur the pipe ends. Clean both internal and external surfaces of the tubing using an emery cloth. -
Page 8: Section 8. Refrigerant Line Leak Check
3-4” from valve 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, according to the following requirements: 1. -
Page 9: Section 10. Service Valves
Under no circumstances shall potential sources of ignotion be used in the searching for or detection of refrigerant leaks. The following leak detection methods are deemed acceptable for all refrigerant systems: • Electronic leak detectors calibrated for R454B • Bubble method •... -
Page 10: Section 11. Electrical - Low Voltage
1/4 TURN ONLY COUNTERCLOCKWISE FOR FULL OPEN Unit Side of POSITION Service Valve 3/16” Hex Wrench Rolled Edge to Captivate Stem VALVE STEM Hex Headed Valve System UNIT SIDE OF VALVE Service Port PRESSURE TAP PORT GAS LINE CONNECTION Gas Service Valve Liquid Service Valve Mitigation Board Guidelines •... - Page 11 With Furnace Outdoor Evaporator Coil MCB Furnace Thermostat Unit 24 VAC HOT 24 VAC Common 1. Units with pigtails require wirenuts for connections. Cap all unused wires. 2. For 24V control, connect factory supplied harness to circuit board at evaporator. COOL Complete all other wiring connections at the furnace 3.
-
Page 12: Section 12. Electrical - High Voltage
11.3 Defrost Control - 036 Model ONLY Defrost controls have a selectable termination temperature. As shipped, defrost will terminate at 47°F. For a higher termination temperature, cut Jumper J2 to achieve 70°F when at or below 30°F ambient. See Service Facts shipped in the outdoor unit for more information. -
Page 13: 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. WARNING CABLING SAFETY! Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any... - Page 14 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 value using R-454B REFRIGERANT CHARGING CHART total Line Length and Lift measured in STEP 1 and DESIGN SUBCOOLING (...
- Page 15 060A Models SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) Design Subcooling Value = __________º F Add 6° (from nameplate or Service Facts) Add 5° of Subcooling Add 4° of Subcooling Subcooling Correction = __________º F Add 3° of Subcooling Add 2°...
- Page 16 STEP 3 - Record System Information for reference. 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...
-
Page 17: Section 15. Checkout Procedures
STEP 2 - 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 20 MIN. minimum of 20 minutes to stabilize before accurate measurements can be made. STEP 3 - Check the liquid line temperature and liquid gage pressure to obtain a minimum of 10º... -
Page 18: Section 16. Defrost Control
Section 16. Defrost Control Defrost Control The demand defrost control measures heat pump out- door ambient temperature with a sensor located outside the outdoor coil. A second sensor located on the outdoor coil is used to measure the coil temperature. The dif- ference between the ambient and the colder coil tem- perature is the difference or delta-T measurement. - Page 19 Table 1. Defrost Control Thermistor Table Table 2. DEMAND DEFROST QUICK SPECS THERMISTOR DEFROST ENABLED: TEMP °F TEMP °C RESISTANCE Volts DC 52 °F 52 °F Y = ON COIL TEM- (OHMS) PERATURE -15.00 -26.11 135976 2.50 DEFROST PERMIT: Y 32 °F 32 °F = ON COIL TEMPERA-...
- Page 20 c. Ambient sensor failure will initiate an Adaptive DEFROST Timed Limp Mode. This will be accompanied FAULT FAULT CONTROL DESCRIPTION by a 1 flash. The DFC will initiate defrost after CODES BEHAVIOR 60 minutes of accumulated heating runtime and force a defrost, which will terminate on Hard Lock Out (can coil temp.
-
Page 21: Section 17. Troubleshooting
Section 17. Troubleshooting Compressor fails to start Contactor check Is contactor engergized? Go To: Compressor won’t run (contacts closed) Wait 3 minutes and check contactor Check for 24 volts AC coil again across contactor coil Is voltage If applicable, is TDR present at input voltage Replace contactor... - Page 22 Compressor won’t run Contactor is closed Check for high voltage to contactor Check for open IOL Is high voltage present (Internal Overload) at T1 and T2 ? Check resistance of C to S and C to R Does the Check power resistance check Allow compressor supply from...
-
Page 23: Section 18. Wiring Diagrams
Section 18. Wiring Diagrams 88-A5HP4001-1A-EN... - Page 24 88-A5HP4001-1A-EN...
- Page 25 88-A5HP4001-1A-EN...
-
Page 26: Section 19. Pressure Curves
Section 19. 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, DISCHARGE AND SUCTION PRESSURES. ON THE PLOTS LOCATE OUTDOOR TEMPERATURE (1); LOCATE INDOOR WET BULB (2);... - Page 27 88-A5HP4001-1A-EN...
- Page 28 88-A5HP4001-1A-EN...
- Page 29 88-A5HP4001-1A-EN...
-
Page 30: Section 20. Refrigerant Circuit (Only For Reference)
Printed from D159360 About Trane and American Standard Heating and Air Conditioning Trane and American Standard create comfortable, energy efficient indoor environments for residential applications. For more information, please visit www.trane.com or 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.