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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
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 ............................................... 7
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 (Reference only)...........................17
Section 17. Wiring Diagrams................................................................18
Section 18. Pressure Curves................................................................21
Installation and Operation Manual
Condensing Units
4TTR5018 – 060
18-AC123D1-1C-EN
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Summary of Contents for Trane 4TTR5018-060
- Page 1 18-AC123D1-1C-EN Installation and Operation Manual Condensing Units 4TTR5018 – 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 WARNING WARNING LIVE ELECTRICAL COMPONENTS! This information is intended for use by individuals During installation, testing, servicing, and trouble- possessing adequate backgrounds of electrical and shooting of this product, it may be necessary to work mechanical experience. Any attempt to repair a central with live electrical components.
- Page 3 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) 4TTR5018N 29 x 30 x 33 4TTR5024N 29 x 30 x 33 4TTR5030N 37 x 30 x 33 4TTR5036N 37 x 34 x 37 4TTR5042N...
- Page 4 2.4 Coastal Considerations If installed within one mile of salt water, including seacoasts and inland waterways, models without factory supplied 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.
- Page 5 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. Line Length Total Vertical Change (lift) = __________ Ft. 5.4 Refrigerant Line Insulation Important: The Vapor Line must always be Vapor Line Liquid Line...
- Page 6 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 Feet Maximum Wall...
- Page 7 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. 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.
- Page 8 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.
- Page 9 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.
- Page 10 With Furnace With Variable Speed Furnace Outdoor Outdoor Thermostat Furnace Thermostat Furnace Unit Unit 24 VAC HOT 24 VAC HOT 24 VAC 24 VAC Common Common COOL COOL HEATING HEATING • Units with pigtails require wirenuts for connections. Cap all unused wires. •...
- Page 11 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.
- Page 12 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. 120º F Subcooling (in cooling mode) is the only recommended* method of charging above 55º F ambient outdoor tem- perature.
- Page 13 STEP 2 - Determine the final subcooling value using total Line Length and Lift measured in STEP 1 and the charts below. 018N Models 024N Models SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE) 1°...
- Page 14 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 minimum 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.
- Page 15 PRESSURE CURVE SAMPLE Cooling @ 1450 SCFM Heating @ 1350 SCFM INDOOR ENTERING INDOOR ENTERING WET BULB CURVES DRY BULB CURVES TOP TO BOTTOM TOP TO BOTTOM 80, 70, AND 60 DEG F. 71, 67, 63 AND 59 DEG F. OUTDOOR TEMPERATURE (Degree F) INDOOR ENTERING INDOOR ENTERING...
- Page 16 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 Section 16. Refrigerant Circuits (Reference only) PRINTED FROM D157394P01 NOTE: 4TTR5042N1000A and 4TTR5048N1000A does not have a sub-cooling circuit. 18-AC123D1-1C-EN...
- Page 18 Section 17. Wiring Diagrams 18-AC123D1-1C-EN...
- Page 19 18-AC123D1-1C-EN...
- Page 20 18-AC123D1-1C-EN...
- Page 21 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 22 The AHRI Certified mark indicates Trane U.S. Inc. participation in the AHRI Certification program. For verification of individual certified products, go to ahridirectory.org. Trane 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.