Nordyne T4BE Series User Manual

Outdoor Heat Pump
14 SEER R-410A High Effi ciency Split System
User’s Information/Installation Instructions
These units have been designed and tested for capacity and effi ciency in accordance with A.R.I.
Standards. Split System Heat Pump units are designed for use with a wide variety of fossil fuel
furnaces, electric furnaces, air handlers, and evaporator coil combinations.
These instructions are primarily intended to assist qualifi ed individuals experienced in the proper
installation of heating and/or air conditioning appliances. Some local codes require licensed instal-
lation/service personnel for this type of equipment. Read all instructions carefully before starting
the installation.
IMPORTANT
Read this owner information to become familiar with the capabilities and use of your appliance.
Keep this with literature on other appliances where you have easy access to it in the future. If a
problem occurs, check the instructions and follow recommendations given. If these suggestions
don’t eliminate your problem, call your servicing contractor.
Heat Pump Principle of Operation
USER’S INFORMATION
5
4
1
2
3
6
5
4
3
2
1
6
SUMMER COOLING
1. Indoor air enters the air handler section.
2. Cold, heat-transfer section (indoor coil)
extracts heat from indoor air as refrigerant
evaporates from a liquid to a cold gas.
3. Refrigerant, drawn to heat pump and
compressed to a hot gas by heat pump,
carries the heat outdoors.
4. Hot, heat-transfer section (outdoor coil)
releases the heat as refrigerant condenses
from a gas to a liquid.
5. Heat pump (outdoor fan) discharges the
heat to outside air.
6. Refrigerant returns to indoor coil and
evaporates once again to absorb more
heat.
WINTER HEATING
1. Outdoor air enters heat pump.
2. Cold, heat-transfer section (outdoor coil)
extracts heat from outdoor air as refrigerant
evaporates from a liquid to a gas.
3. Refrigerant, compressed to a hot gas by
heat pump, carries the heat to the hot heat-
transfer section (indoor coil).
4. Hot, heat-transfer section (indoor coil)
releases the heat to indoor air as refrigerant
condenses from a gas to a liquid.
5. Air handler circulates the heat throughout
the home.
6. Refrigerant returns to outdoor coil and
evaporates once again to absorb more
heat.

Nordyne T4BE Series Specifications

General

SEER	Up to 14
HSPF	Up to 8.2
Refrigerant	R-410A
Voltage	208/230V
Phase	1

Summary

Operating Instructions

To Operate Your Heat Pump for Cooling

To Operate Your Heat Pump for Heating

System Operation and Maintenance

Automatic Cooling and Heating Operation

Safety and Site Preparation

Safety Considerations

Critical warnings regarding system pressures and qualified personnel.

Outdoor Unit Installation Methods

Unit Installation and Connections

Indoor Unit Installation

Refrigerant Tubing and Electrical Connections

Procedures for connecting refrigerant lines and wiring power/control circuits.

Electrical Specifications and Startup

Startup and Checkout Procedures

Steps for initial system startup and functional checks, including air filters and thermostat settings.

Diagnostic Module and Troubleshooting

Troubleshooting Cooling Issues

How to interpret diagnostic LEDs and troubleshoot cooling problems.

Diagnostic LED Troubleshooting Guide

LED Status Descriptions and Troubleshooting

Detailed explanations of LED indicators and their corresponding troubleshooting information.

Module Wiring and Defrost Testing Procedures

Module Wiring Troubleshooting

Defrost Test and Refrigerant Charge

Refrigerant Charge Adjustment Warning

Critical caution regarding refrigerant charge adjustment by qualified personnel only.

Cooling Refrigerant Charging Charts

1.5 Ton Cooling Chart

Chart for charging a 1.5 Ton heat pump in cooling mode using liquid pressure and temperature.

2.5 Ton Cooling Chart

Chart for charging a 2.5 Ton heat pump in cooling mode using liquid pressure and temperature.

3.5 Ton Cooling Chart

Chart for charging a 3.5 Ton heat pump in cooling mode using liquid pressure and temperature.

5 Ton Cooling Chart

2 Ton Cooling Chart

Chart for charging a 2 Ton heat pump in cooling mode using liquid pressure and temperature.

3 Ton Cooling Chart

Chart for charging a 3 Ton heat pump in cooling mode using liquid pressure and temperature.

4 Ton Cooling Chart

Heating Refrigerant Charging Charts

Heating Charts Legend

024K Model Heating Chart

036K Model Heating Chart

048K Model Heating Chart

018K Model Heating Chart

030K Model Heating Chart

042K Model Heating Chart

060K Model Heating Chart