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General| Model | YZJ150 |
|---|---|
| Category | Air Conditioner |
| Cooling Capacity | 150, 000 BTU/h |
| Compressor Type | Scroll |
| Refrigerant | R-410A |
| Phase | 3 |
| Voltage | 460V |
| HSPF | Not Applicable |
| Heating Capacity | Not Available (Cooling Only) |
Details on Trane Precedent™ rooftop air conditioners, cooling and gas/electric.
Specifications for ultra-high efficiency units, covering 12.5 to 25 tons at 60 Hz.
Crucial safety warnings for installation, operation, and servicing of the equipment.
Explains the different types of safety advisories used throughout the manual.
Discusses environmental concerns and responsible refrigerant handling practices.
Essential guidelines for proper field wiring, grounding, and required personal protective equipment.
Adherence to company EHS policies and superseding local regulations.
Critical safety instructions regarding gas leaks, fire prevention, and emergency procedures.
Information on document ownership, reproduction rights, and trademarks.
Details on unit function (DX Cooling, Gas Heat) and cooling efficiency rating.
Specifies the refrigerant type (R-410A) and cooling capacities from 12.5 to 25 tons.
Information on design sequence and available voltage selections for the unit.
Guidelines for inspecting the unit upon receipt for shipping damage and material shortages.
Precautions for storing the unit to prevent internal condensate formation.
Overview of unit features, including microchannel coils and Symbio™ 700 controls.
Safety measures and PPE required when working with fiberglass wool insulation.
Warning about hazardous voltage and the necessity of disconnecting power before servicing.
Detailed physical dimensions and connection points of the unit.
Minimum operating and service clearances required for optimal unit performance.
Table detailing model weights, corner weights, and center of gravity dimensions.
Critical safety instructions for lifting heavy objects to prevent injury or damage.
Guidelines to ensure proper, level lifting of the unit to avoid dropping hazards.
Instructions for installing units horizontally, including footing and anchoring.
Guidance on ductwork connections, roof curb verification, and sealing.
Warning about maintaining clearance from combustible materials to prevent fire hazards.
Detailed steps for safely rigging and lifting the unit.
A checklist summarizing essential steps for successful commercial unit installation.
Instructions for confirming the economizer is in the correct operating position.
Procedure for installing the external vent hood on gas heat models.
Guidance on using temperature limit switches for gas heat units, including conversions.
Steps for replacing TCO1 limit switches for horizontal discharge configurations.
Critical information on power supply, wiring, and grounding for safe installation.
Instructions for routing and connecting the gas piping through the unit base.
Information on the furnace condensate drain system for modulating gas units.
Requirements for field-installed power wiring, including conductor types and voltage compatibility.
Details on connecting main unit power, including standard and optional wiring.
Guidelines for field-installing control wiring, including safety and NEC compliance.
Instructions for wiring control components using 24 Vac power.
Warning about component failure caused by excessive resistance or voltage drop.
Guidelines for wiring DC analog signals and conductor sizing.
Explanation of wiring remote sensors for space temperature averaging.
Critical limits and calculations for three-phase voltage imbalance.
Procedure for verifying and correcting electrical phasing for motors.
Importance of crankcase heaters for oil management and preventing damage.
Overview of the Symbio™ 700 service test mode for component energization.
Detailed sequence of operation for the two-stage ignition module.
Step-by-step process for modulating gas ignition and heating cycle.
Describes ignition failures and operational alerts during a call for heat.
Procedures for recovering from unit lockout states (E Codes).
Table of display codes for ignition module failures and their meanings.
Explanation of the return air smoke detector's function and air velocity requirements.
Steps for starting up compressor circuits, including superheat checks.
Final checks after start-up, including thermostat programming and panel security.
Routine monthly checks for filters, motors, and electrical connections.
Specific maintenance tasks to perform during the cooling season.
Maintenance tasks to perform at the beginning of the heating season.
Instructions for cleaning coils, emphasizing caution with microchannel coils.
Specific care recommendations for microchannel condenser coils.
Annual cleaning and repainting of corroded surfaces.
Template for recording operational data during maintenance.
Reference to the Symbio 700 Application Guide for troubleshooting.
Reference to the eFlex™ Variable Speed Compressor Inverter Troubleshooting Guide.
Index of wiring diagrams for main unit power and Symbio 700 controls.
Diagram illustrating refrigerant piping for 12.5 to 15 ton models.
Refrigerant piping diagram for hot gas reheat feature on 12.5-15 ton units.
Diagram illustrating refrigerant piping for 17.5 to 25 ton models.
General information on gas heat units, including explosion/fire hazards and safety.
How thermostats function and proper placement for accurate temperature sensing.
Description of the heating cycle and safety controls for preventing overheating.
Recommended filter sizes and maintenance for optimal performance.
Step-by-step guide for starting the heating system safely.
Instructions for safely shutting down the heating system.
Procedure for safely turning off the gas supply to the unit.
Essential maintenance checks to perform at the start of each heating season.
Explains the function of the optional condensate overflow sensor.
Warranty terms for YZJ Precedent electric air conditioner models.
Details on warranty coverage for defects and exclusions like corrosion.
Placeholder for any additional notes.
