Nortek T4BE Installation Instructions Manual

Nortek T4BE Installation Instructions Manual

Split system heat pump with tube & fin coils

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Split SyStem heat pump With tube & Fin CoilS
inStallation inStruCtionS
t4be - 018, 024, 030, 036, 042, 048, & 060 (1.5, 2, 2.5, 3, 3.5, 4, & 5 ton) Series
Single phaSe modelS
important SaFety inFormation ................. 2
heat pump inStallation ................................ 3
General Information ....................................................... 3
Before You Install this Unit ............................................. 3
Locating the Heat Pump ................................................ 3
Packaging Removal ....................................................... 3
Ground Level .................................................................. 3
Rooftop .......................................................................... 3
Indoor & Outdoor Unit .................................................... 4
Outdoor Orifice Removal & Installation .......................... 4
eleCtriCal Wiring ........................................... 5
Pre - Electrical Checklist ................................................ 5
Line Voltage ................................................................... 5
Grounding ...................................................................... 5
Thermostat / Low Voltage Connections ......................... 6
Blower Time Delay Relay ............................................... 7
Diagnostics Module.................................. 7
Compressor Protection ................................................ 7
Resetting Alert Codes ................................................. 7
Startup & adjuStmentS ............................... 8
Pre - Start Checklist ....................................................... 8
Start-up Procedures ....................................................... 8
Air Circulation - Indoor Blower ....................................... 8
Short Cycle Protection Cooling ...................................... 8
System Cooling .............................................................. 8
System Heating .............................................................. 8
Defrost Cycle Timer ....................................................... 8
Defrost Control Board .................................................... 9
Operational Information ............................................... 9
Normal Defrost Operation............................................ 9
Defrost Test Procedure ................................................ 9
Anti Short Cycle Timer Test ............................................ 9
it is your responsibility to know this product better than your customer. this includes being able to install the product
according to strict safety guidelines and instructing the customer on how to operate and maintain the equipment for
the life of the product. Safety should always be the deciding factor when installing this product and using common
sense plays an important role as well. pay attention to all safety warnings and any other special notes highlighted
in the manual. improper installation of the furnace or failure to follow safety warnings could result in serious injury,
death, or property damage.
these instructions are primarily intended to assist qualified individuals experienced in the proper installation of
this appliance. Some local codes require licensed installation/service personnel for this type of equipment. please
read all instructions carefully before starting the installation. return these instructions to the customer's package
for future reference.
do not deStroy. pleaSe read CareFully and Keep in a SaFe plaCe For Future reFerenCe.
heat pump maintenanCe ............................... 9
reFrigerant Charging ............................... 10
Outdoor Temperatures Above 55° F ................... 10
Figure 6. Charging Chart for 1.5 Ton Units ................ 11
Figure 7. Charging Chart for 2 Ton Units ................... 12
Figure 8. Charging Chart for 2.5 Ton Units ................ 12
Figure 9. Charging Chart for 3 Ton Units ................... 13
Figure 10. Charging Chart for 3.5 Ton Units .............. 13
Figure 11. Charging Chart for 4 Ton Units ................. 14
Figure 12. Charging Chart for 5 Ton Units ................. 14
Table 4. Charging Table for 1.5 Ton Units .................. 16
Table 5. Charging Table for 2 Ton Units ..................... 16
Table 6. Charging Table for 2.5 Ton Units .................. 16
Table 7. Charging Table for 3 Ton Units ..................... 16
Table 8. Charging Table for 3.5 Ton Units .................. 17
Table 9. Charging Table for 4 Ton Units ..................... 17
Table 10. Charging Table for 5 Ton Units ................... 17
Wiring diagramS ............................................ 18
Figure 13. C,M(SH) & D,E,J(T4BE) (1.5-3.5 Ton) ...... 18
Figure 14. FT4BE Series (1.5-3.5 Ton) ...................... 19
Figure 15. PSH4BE Series (1.5-3.5 Ton) ................... 20
Figure 16. C,M(SH) & D,E,J(T4BE) (4 & 5 Ton) ......... 21
Figure 17. FT4BE Series (4 & 5 Ton) ......................... 22
Figure 18. PSH4BE Series (4 & 5 Ton) ...................... 23
replaCement partS ...................................... 24
important
attention inStallerS:
14 Seer

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Summary of Contents for Nortek T4BE

  • Page 1: Table Of Contents

    Split SyStem heat pump With tube & Fin CoilS 14 Seer inStallation inStruCtionS t4be - 018, 024, 030, 036, 042, 048, & 060 (1.5, 2, 2.5, 3, 3.5, 4, & 5 ton) Series Single phaSe modelS important SaFety inFormation ....2 heat pump maintenanCe .......
  • Page 2: Important Safety Information

    Failure to follow safety recommendations could result in possible damage to the equipment, serious personal t4be Split System heat pumps are shipped injury or death. charged with r410a refrigerant and ready for installation. if repairs make it necessary •...
  • Page 3: Heat Pump Installation

    heat pump inStallation packaging removal To prevent damage to the tubing onnections, carefully general information remove the carton and user’s manual from the equipment. Split system heat pumps are designed only for outdoor Discard the shipping carton. rooftop or ground level installations. This unit has been tested for capacity and efficiency in accordance with ground level AHRI Standards and will provide many years of safe...
  • Page 4: Connecting Refrigerant Tubing Between The Indoor & Outdoor Unit

    Connecting refrigerant tubing between connection of the liquid valve and not inside the outdoor unit’s distributor. Perform steps 1 - 5 if the outdoor restrictor the indoor & outdoor unit needs to be changed. Caution: Caution: When servicing, cover or seal openings to When servicing, cover or seal openings to minimize the exposure of the refrigerant system minimize the exposure of the refrigerant system...
  • Page 5: Electrical Wiring

    Line Voltage 2. Insert a light-gauge wire hook between the valve body and the restrictor orifice (Figure 3, page 5) while being • A wiring diagram is located on the inside cover of the careful not to scratch either part. Carefully remove the electrical box of the outdoor unit.
  • Page 6: Thermostat / Low Voltage Connections

    Copper Wire SiZe — aWg (1% Voltage Drop) Thermostat G R W 2 C E O Y Supply Wire length-Feet Supply Circuit NOTE: Jumper ampacity between W2 and E is required when no OD T-Stat is used. Green Brown Orange For 2-Stage Heater Kits...
  • Page 7: Blower Time Delay Relay

    blower time delay relay (Select models) that opens the normally closed protection contacts in the module, thereby cutting power to the contactor and A time delay relay may be provided with the unit and shutting off the compressor. must be installed in the indoor section. The relay will keep the indoor blower running an additional 40 seconds for Resetting Alert Codes increased cooling efficiency after the outdoor unit shuts off.
  • Page 8: Startup & Adjustments

    Start up & adjuStmentS System Cooling 1. Set the thermostat’s system mode to COOL and the pre-Start Check list fan mode to AUTO. Gradually lower the thermostat √ Verify the unit is level and has sufficient clearances for temperature setpoint below room temperature and unobstructed airflow.
  • Page 9: Defrost Control Board

    defrost Control board Defrost Test Procedure 1. Jumper t2 to dFt at the test terminals. Operational Information 2. With unit running in heat mode, short the teSt terminal • Terminals r - rC must have 24±V present between to the common terminal near it. This will speed up the them in order for the time delay and defrost sequences board and cause it to enter defrost mode in 5/10/15 to be operational.
  • Page 10: Refrigerant Charging

    Charging the unit in aC mode with outdoor matched assemblies and listed airflows for the indoor temperatures above 55° F coil. T4BE outdoor units with non-AHRI lsited indoor coils are not recommended and deviations from (for optimized sub-cooling of 10° F to 12° F) rated airflows or non-listed combinations may require 1.
  • Page 11: Charging Charts - Cooling Mode

    (If applicable). T4BE-018K Charging Chart - Cooling Remove refrigerant when above curve Add refrigerant when below curve Liquid T emperature (F ) Figure 6. Charging Chart for T4BE-018 Series (1.5 Ton Units) - TXV Matches...
  • Page 12 Remove refrigerant when above curve Add refrigerant when below curve Liquid T emperature (F ) Figure 7. Charging Chart for T4BE-024 Series (2 Ton Units) - TXV Matches T4BE-030K Charging Chart - Cooling Remove refrigerant when above curve Add refrigerant when below curve Liquid T emperature (F ) Figure 8.
  • Page 13 Remove refrigerant when above curve Add refrigerant when below curve Liquid T emperature (F ) Figure 9. Charging Chart for T4BE-036 Series (3 Ton Units) - TXV Matches T4BE-042K Charging Chart - Cooling Remove refrigerant when above curve Add refrigerant when below curve Liquid T emperature (F ) Figure 10.
  • Page 14 Remove refrigerant when above curve Add refrigerant when below curve Liquid T emperature (F ) Figure 11. Charging Chart for T4BE-048 Series (4 Ton Units) - TXV Matches T4BE-060K Charging Chart - Cooling Remove refrigerant when above curve Add refrigerant when below curve Liquid T emperature (F ) Figure 12.
  • Page 15: Charging Tables - Heating Mode

    T4BE HEaT MODE VERiFiCaTiOn CHaRTS - HEaTing OnLy application notes on the use of heating-mode charge verification charts: legend noteS: Shaded boxes indicate flooded conditions. 1. All pressures are listed psig and all temperatures in °F Rated design values. Suction pressure will vary 2.
  • Page 16 (deg. F) table 4. Charging table for t4be-018 Series (1.5 ton units) outdoor temperature (deg. F) table 5. Charging table for t4be-024 Series (2 ton units) outdoor temperature (deg. F) table 6. Charging table for t4be-030 Series (2.5 ton units) outdoor temperature (deg.
  • Page 17 (deg. F) table 8. Charging table for t4be-042 Series (3.5 ton units) outdoor temperature (deg. F) table 9. Charging table for t4be-048 Series (4 ton units) outdoor temperature (deg. F) table 10. Charging table for t4be-060 Series (5 ton units)
  • Page 18: Wiring Diagrams

    Wiring diagramS & diagnoStiC tableS C Y 0 W2 R E Figure 13. Wiring diagram for CSh4be, dt4be, et4be, jt4be, & mSh4be Series (1.5 to 3.5 ton models)
  • Page 19 C Y 0 W2 R E Figure 14. Wiring diagram for Ft4be Series (1.5 to 3.5 ton models)
  • Page 20 0 W2 R E CoreSense Figure 15. Wiring diagram for pSh4be Series (1.5 to 3.5 models with...
  • Page 21 Yellow Figure 16. Wiring diagram for CSh4be, dt4be, et4be, jt4be, & mSh4be Series - (4 & 5 ton models)
  • Page 22 Yellow Figure 17. Wiring diagram for Ft4be Series - (4 & 5 ton models)
  • Page 23 Yellow Black CoreSense Figure 18. Wiring diagram for pSh4be Series (4 & 5 ton models with...
  • Page 24: Install. / Performance Checklist

    Blower Motor Fan Motor Components: Blower Assembly Fan Grille Cabinet Panels Filter/Driers Expansion Valves Specifications & illustrations subject to change without notice or incurring obligations (05/15). O’Fallon, MO, © Nortek Global HVAC LLC 2015. All Rights Reserved. 7096090 (Replaces 7094080)

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