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General| Model Number | YSJ072 |
|---|---|
| Category | Air Conditioner |
| Cooling Capacity | 72, 000 BTU/h |
| Refrigerant | R-410A |
| Compressor Type | Scroll |
| Voltage | 208/230V |
| Phase | 3 |
| Sound Level (Outdoor Unit) | 76 dB |
Product line identifier for cooling and gas/electric configurations.
Specifies the standard efficiency rating and tonnage range.
Lists model numbers and critical technical specifications.
Crucial safety information for handling the equipment.
Defines the types of safety advisories used throughout the manual.
Discusses environmental concerns and responsible refrigerant handling.
Details essential requirements for safe field wiring and PPE.
Covers EHS policies and specific hazards related to fire and explosion.
Highlights general safety hazards to prevent injury or damage.
Information on document ownership, trademarks, and revision updates.
Covers procedures for unit inspection, storage, and its basic description.
Details on unit components like door handles, nameplates, and interfaces.
Describes various system input devices and their functions.
Information on different types of zone sensors and thermostats.
Provides detailed physical dimensions of the unit.
Specifies installation clearances and unit weights.
Explains the meaning of each digit in the unit model number.
Details system monitoring controls and unit hardware enhancements.
Information on SCCR marking and low ambient operation.
Covers procedures for unit inspection, exterior, and concealed damage.
Details the unit's features, door handles, and nameplate.
Describes compressor nameplate, communication interfaces, and input devices.
Details supply fan failure, filter switch, and condensate overflow detection.
Explains low/high pressure controls and various zone sensor types.
Information on thermostat options and temperature sensors.
Details programmable zone sensors and evaporator frost control.
Explains DLTS and optional smoke detector functions.
Describes the function and operation of the phase monitor.
Safety measures and PPE requirements when working with fiberglass wool.
General precautions and first aid procedures for installation.
Critical warning regarding hazardous voltage during pre-installation.
Provides detailed physical dimensions of the unit.
Provides detailed physical dimensions of the unit.
Provides detailed physical dimensions of the unit.
Provides detailed physical dimensions of the unit.
Provides detailed physical dimensions of the unit.
Provides detailed physical dimensions of the unit.
Provides detailed physical dimensions of the unit.
Provides detailed physical dimensions of the unit.
Provides detailed physical dimensions of the unit.
Provides detailed physical dimensions of the unit.
Provides detailed physical dimensions of the unit.
Provides detailed physical dimensions of the unit.
Provides detailed physical dimensions of the unit.
Specifies minimum operating and service clearances for installation.
Lists unit weights and center of gravity dimensions.
Provides net weights for factory installed options and accessories.
Details safe lifting and rigging procedures for the unit.
Covers installation requirements for horizontal unit placement.
Provides guidelines for installing supply and return air ductwork.
Instructions for proper installation of roof curbs.
Warning about maintaining clearance from combustible materials.
Guidance on aligning the unit with the roof curb.
Details safe rigging practices and lift point verification.
A checklist summarizing key installation steps.
Procedures for installing economizers and external vent hoods.
Explains the usage and conversion for temperature limit switches.
Instructions for converting 6-12.5 ton units to horizontal discharge.
Steps for DAS horizontal conversions on modulating gas units.
Details on converting specific models to horizontal discharge.
Specific conversion steps for model YSJ072***BL to horizontal.
Instructions for replacing or verifying TCO1 limit switches.
Procedure for converting the return air smoke detector for horizontal discharge.
Steps for converting the wireless communication interface to horizontal.
Details on main electrical power supply requirements and safety.
Instructions for through-the-base gas piping installation.
Diagrams and component lists for gas pipe assemblies.
Specifies gas heat data, supply, and manifold pressure requirements.
Details setup for modulating gas heat configurations.
Information on condensate drain connections and safety.
Covers condensate trap installation and drain pan removal.
Details on furnace condensate drains and filter installation.
Guidelines for field-installed power wiring and grounding.
Requirements for connecting main unit power supply.
Details standard and through-the-base electrical wiring options.
Guidelines for field-installed control wiring and safety.
Information on control power transformers and 24 Vac controls.
Wiring diagrams for low voltage connections in B and C cabinets.
Wiring diagrams for low voltage connections in D cabinets.
Details control panel wiring and DC analog input/output signals.
Guidelines for DC conductors and recommended wire sizing.
Explanation of space temperature averaging using remote sensors.
Illustrates remote sensor wiring and provides temperature vs. resistance data.
Table for sizing natural gas pipe mains and branches.
Critical safety checks including voltage and capacitor discharge.
Procedures for checking voltage imbalance and electrical phasing.
Safety warnings for live electrical components and checks.
Information on compressor crankcase heater operation and importance.
Overview of Symbio Controls service test modes.
Details on initiating and operating Symbio 700 service test modes.
Describes the start-up sequence for two-stage gas operation.
Lists ignition module diagnostic codes and their meanings.
Details modulating gas ignition process and call for heat sequence.
Explains modulating gas heat operation and firing rate signals.
Covers ignition failures, lockout conditions, and recovery procedures.
Describes the function and airflow requirements for the smoke detector.
Steps for starting up the compressor circuits safely.
Procedures for starting up hot gas reheat and gas heat units.
Final checks for system setup and critical safety alerts.
Crucial safety warnings and precautions for maintenance tasks.
Routine checks to be performed monthly on the unit.
Maintenance tasks for filters, smoke detectors, and condensate switches.
Specific maintenance tasks for cooling and heating seasons.
Procedures for cleaning coils, including microchannel coil warnings.
Instructions for hail guard removal/reinstallation and hot gas reheat oil.
Annual maintenance tasks and final process data logging.
General information on gas heat units and associated safety hazards.
Details on thermostat functions and proper operation.
Guides on air filter maintenance and heating system cycle.
Information on heating safety controls and start-up procedures.
Safety warnings for electrical hazards and gas unit shutdown.
Notice regarding coil freeze-up and procedures for turning off gas.
Steps for performing heating system maintenance.
Explains the function of the optional condensate overflow sensor.
Details the limited warranty for Electric Air Conditioner and YSJ Precedent Models.
