Table of Contents

General Information…3 Cabinet Styles…4

Model Number Description…6 Receiving and Handling…9 Jobsite Storage…10 Installation Considerations…11 Service Access…12 Installation Checklist…13 Vertical Units…15

Installing the Unit…15

Horizontal Units…16 External Insulating Require-

ments…20 Startup Checklist…20

Units with Hydronic Coil Connec- tions Only…21

Piping…21

Units with Steam Coils…22 Factory Piping Package Connec-

tions…24

Installing the Auxiliary Drain Pan…25

Condensate Overflow Detection Device…26

Automatic Changeover Sensor…26 Automatic Electric Heat Lockout

Switch (Fan-coil) …27 Ductwork Recommendations…32 Duct Connections…32

Supply Power Wiring…33

Electrical Connections…33

Wall Mounted Control Interconnec- tion Wiring…35

Electrical Grounding Restric- tions…35

Fan Mode Switch …36 Installation…36

Installing Wall Mounted Con- trols…36

Zone Sensor Installation…37 Fan Mode Switch…39 Tracer® ZN.010 and ZN.510…40 Thermostat Module Operating

Information…41 Binary Inputs…42 Binary Outputs…43 Analog Inputs…44 Fan Mode Switch…44 Zone Sensors…44 Supply Fan Operation…45 LED Activity…46 Troubleshooting…46 Yellow COMM LED…47 Manual Output Test…48 Diagnostics…50 Resetting Diagnostics…51

Troubleshooting …53 Tracer® ZN.520…59 Troubleshooting…83 Troubleshooting…85 Tracer® Communication Wiring

…88

Service Communication Wiring …89

Wall-Mounted Zone Sensor Module…89

TUC Human Interface…90

Cooling and Heating Operation…92 TUC Sequence of Operation…92 Fan Mode Operation…93 Entering Water Temperature

Sampling Function…94 2-Pipe with Auxiliary Electric Heat

(Fan-coils)…94

Fresh Air Damper Options…95 BIP4: Low Temperature Detection

Option…97

BIP3: Condensate Overflow Detection Device…97

BIP4: Smoke Input…98

BIP1: External Interlock…98

BIP3: Occupied/Unoccupied Mode…98

BIP2: Motion Detection…99 Autocycle Test…99 Reading Diagnostics …101 Reading the Operating Machine

State …102

Reading the Operating Control Mode…104

Resetting Diagnostics…107 Diagnostics…107

Unit Mode Listed as Standby…108 Troubleshooting …109 Maintenance Procedures…116 Periodic Maintenance Check-

list…116

Maintenance…116

Inspecting and Cleaning Drain Pans…118

Winterizing the Coil …120 Inspecting and Cleaning Coils…121 Inspecting and Cleaning the

Internal Insulation on Fan- Coils…123

Inspecting and Cleaning the Fan…124

Fan Board Assembly Removal…126 Factory Piping Packages…128 Appendix…128

Typical Wiring Diagrams…129-134

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Trane LO manual Table of Contents

LO specifications

Trane LO is a cutting-edge solution in the HVAC sector, designed with advanced engineering and smart technologies to meet diverse climate control needs. Renowned for its reliability and efficiency, Trane LO offers a wide array of features that set it apart in the market.

One of the core characteristics of Trane LO is its energy efficiency. Equipped with variable speed compressors, the system can adjust its output according to the cooling or heating demand, ensuring optimal energy use. This feature not only reduces energy consumption but also lowers utility bills for users. Additionally, Trane LO units often come with a SEER (Seasonal Energy Efficiency Ratio) rating that ensures top performance during hotter months.

Incorporating state-of-the-art technology, Trane LO features Smart Technology integration. Through IoT (Internet of Things) capabilities, users can monitor and control their HVAC systems remotely via smartphones or smart home devices. This feature promotes convenience and ensures that energy use can be optimized from anywhere, giving users greater control over their indoor climate.

Another standout technology in Trane LO is its use of environmentally friendly refrigerants. The system is designed to utilize low-GWP (Global Warming Potential) refrigerants, making it compliant with modern environmental standards and contributing to a greener planet.

The Trane LO also emphasizes durability. Constructed with high-quality materials, including weather-resistant finishes, these units are built to withstand various environmental conditions, ensuring they maintain peak performance over the years.

Noise reduction is another critical aspect of the Trane LO line. With features such as sound blankets and vibration dampening technology, the units operate quietly, ensuring that the comfort of users is not compromised by disruptive noise levels.

Maintenance is simplified with the Trane LO, as several units are engineered for easy access to essential components, promoting hassle-free servicing. This is vital for prolonging the lifespan of the system and reducing maintenance costs.

In summary, Trane LO represents a fusion of energy efficiency, advanced technology, environmental responsibility, durability, and user-friendly features. Whether for residential or commercial applications, Trane LO systems stand as a reliable choice for effective climate control.