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General| Brand | American Standard |
|---|---|
| Model | YC 102-301 Series |
| Category | Heat Pump |
| Language | English |
Perform checks for damage, correct unit nameplate, and refrigerant charge retention.
Overview of key system modules like UCP, ZSM, UEM, TCI, and CTI.
Describes unit features like auto-configuration, lead-lag, and operational modes like HEAT, AUTO, COOL.
Configuration for fan operation and description of indicator lights for status feedback.
Ensures proper smoke detection by maintaining adequate airflow velocity and condition.
Initiated by shorting TEST 1 and TEST 2 terminals for 2-3 seconds.
Unit cycles through test steps automatically after jumper installation.
Initiated by applying specific resistance values across test terminals.
Tables and diagrams for physical unit dimensions and duct opening sizes.
Tables and figures detailing curb dimensions and required clearances for installation.
Unit must be supported by a roof curb or equivalent frame for stability.
Ensure unobstructed airflow for condenser and combustion; consult figures for clearances.
Use belt/cable slings through lifting holes and spreader bars to prevent damage.
Mount on roof curb, follow kit instructions, ensure level installation.
Support unit base adequately for ground level installation, ensuring it is near level.
Provides dimensions for duct connections for various unit models.
Connect ductwork to roof curb flanges before setting the unit.
Use canvas connectors, specific elbow placement, and minimize noise/vibration.
Follow local codes, install trap, pitch downward, avoid level runs.
Ensure gas supply matches nameplate and meets minimum pressure requirements.
Warnings against open flames for leak tests and pressure limits to prevent unit damage.
Install and set a pressure regulator for supply pressures exceeding 14" WC.
Measure manifold pressure and adjust regulator as needed to -0.2" WC.
Determine total system static pressure to find correct airflow rate and fan RPM.
Requirements for power supply lines, conduit, strain relief, and electrical grounding.
Details on integral circuit breakers, replaceable fuses, and ampacity limits.
Installation of disconnect switch and necessary over current protection.
Lists terminal IDs and shows wiring between Zone Sensor Module (ZSM) and Low Voltage Terminal Board (LTB).
Procedures for emergency shutdown and disabling individual compressors.
Proper electrical phasing is critical for scroll compressor rotation and reliability.
Diagrams illustrating wiring for different zone sensor models and optional remote sensors.
Notes on customer-supplied wiring, emergency stop contacts, and zone sensor switch configuration.
How to check and correct incorrect electrical phasing for compressor rotation.
A detailed checklist covering all aspects of a correct and safe installation.
UCP performs diagnostics; switch settings adjust cycle timing for comfort control.
Steps for purging gas, setting controls, igniting burners, and checking operation.
Adjusting manifold pressure and evaporator fan RPM for optimal furnace and airflow performance.
Procedures for shutting down the unit from test mode or normal operation.
Steps for energizing crankcase heaters, checking phasing, airflow, and setting cooling setpoint.
How to check operating pressures and line voltage for system performance.
Procedures for shutting down cooling and understanding compressor overload protection and reset.
Explains how the EDC initiates and manages evaporator defrost cycles during low ambient conditions.
A detailed checklist to ensure all installation steps are completed correctly and safely.
Tasks for annual heating maintenance including airflow, flue, and ignition system checks.
Annual checks for cooling system components, safety controls, and duct connections.
Periodic tasks for owners like filter cleaning, cabinet cleaning, and coil cleaning.
Safety measures for fiberglass insulation, including handling and first aid.
Details product coverage, warranty periods, and limitations for commercial units.
Outlines warranty and liability terms for commercial equipment rated 20 Tons and larger.
