What to do if my Trane SCIH unit does not operate?
First, check for any blown fuses or tripped circuit breakers and replace or reset them if needed. Also, the thermostat setting might be too high, so check the unit and reset it. If the thermostat is out of calibration or defective, consider replacing it. Make sure all other settings are correct.
How to fix noisy operation in a Trane Air Conditioner?
Try adjusting the tubes by bending them slightly to secure their position without touching other parts of the unit. Ensure the unit base is level and fully supported. Check and tighten any loose screws. Tighten the screws on the fan wheel shaft. Adjust the wheel position on the motor shaft. If these steps don't resolve the noise, consider replacing the fan motor or fan bearing.
Why does the fan run but the compressor not start in my Trane Air Conditioner?
Check the power supply to ensure the voltage is within the acceptable range. Inspect the control unit for loose wires and tighten any loose connections. Examine the contacts for loose wire connections, broken or burned spots; replace if defective. Look for refrigerant leaks and repair them, then recharge the unit. Tug on the wires to check if they separate from the connections; replace terminals if necessary. Check for shorts, opens, and grounds; remove and replace the compressor if needed. Replace the compressor if necessary.
What to do if my Trane SCIH is held off by safety?
First, check if the unit cutout on high pressure control. For SCIH it should be set at 395 psig, or 609 psig for SCIJ. Make sure the airflow is not interrupted and that the low ambient damper is set properly, allowing condensing temperatures of 90–135°F. Then, reset the high pressure switch to start. Also, check if the unit is low on refrigerant charge. If so, repair the leak and recharge the unit. Check if the air filter is dirty or has an airflow restriction, and correct the problem. Locate any restriction by inspecting refrigerant lines for temperature changes. Remove the restriction, evacuate, and recharge. Replace any defective parts. Evacuate, replace the element, and recharge. Check for loose connections.
General| Brand | Trane |
|---|---|
| Model | SCIH |
| Category | Air Conditioner |
| Language | English |
Defines warning, caution, and notice terminology for potential hazards and damages.
Discusses impact of chemicals on ozone layer and Trane's refrigerant handling stance.
Emphasizes responsible refrigerant handling, technician certification, and legal compliance.
Highlights warnings for pressure levels and potential explosion hazards related to refrigerants.
Stresses adherence to electrical codes for proper grounding to prevent injury or death.
Identifies unit model, service literature, and wiring diagrams mounted on the control panel door.
Details revisions made to the manual, including model conversions and updates.
Describes the manual's content, installation, operation, and maintenance procedures for the unit.
Explains the coding system for the integral air-cooled unit model number digits.
Details the coding system for accessory model numbers, covering various components and features.
Lists and defines common acronyms and abbreviations used throughout the manual for clarity.
Describes the components of each refrigeration circuit, including compressor, coils, and filter-drier.
Details the fan sections, motor types, sheaves, and control box access for the unit.
Outlines the components of the standard control panel, including terminal blocks, relays, and contactors.
Lists accessories that ship separately for field installation, such as coils, plenums, and dampers.
Provides a checklist of recommended pre-installation steps to ensure proper unit operation and site readiness.
Details procedures for receiving units, inspecting for shipping damage, and handling claims with the carrier.
Covers precautions for unit storage and maintaining adequate clearances for service access.
Guides on selecting an acoustically suitable location and considerations for unit placement to minimize noise.
Details steps for preparing the installation site, ensuring level installation, and positioning the unit.
Provides detailed dimensions and weights for SCIJ050 and SCIH075 unit sizes in a table and diagram.
Lists shipping and operating weights for 10 and 15 ton SCIH/SCIJ units.
Presents diagrams and dimensions for the SCIH10 and SCIH15 ton unit models.
Illustrates the general layout and airflow paths within the SCIH/SCIJ unit.
Provides dimensions and weight data for the SCIH/SCIJ accessories plenum.
Details the dimensions and weight for the SCIH/SCIJ low ambient damper accessory.
Presents dimensions and weight specifications for the SCIH/SCIJ hot water coil.
Provides dimensions and weight data for the SCIH/SCIJ steam coil.
Outlines standards and best practices for installing ductwork, including material, turns, and noise absorption.
Emphasizes safety precautions, hazardous voltage warnings, and grounding requirements for electrical installations.
Provides guidelines for supply power wiring, including voltage compatibility, NEC compliance, and connection methods.
Explains calculations for RLA, LRA, MCA, and MFS, along with voltage utilization range.
Discusses the impact of voltage imbalance on motors and how to measure and address it.
Presents electrical data for standard motors across unit sizes, including RLA, LRA, HP, FLA, MCA, and MFS.
Provides a summary checklist of steps for successful integral air-cooled unit installation.
Covers general unit requirements like ductwork, shipping damage checks, and electrical connections, including grounding.
Notes that field wiring must comply with NEC and applicable local codes.
Step-by-step guide to convert fan discharge from vertical to horizontal, including belt sizes and motor rotation reversal.
Provides a procedure for installing the low ambient damper option on SCIH units, including hole making and actuator connection.
Details steps for installing the hydronic coil, including filter rack adjustment and thermostat relay mounting.
Explains how to install the plenum, including gasket application, screw tightening, and motor pulley adjustment.
Lists checks for unit receiving, location, mounting, component overview, and ductwork compliance before startup.
Covers pre-startup checks like electrical connections, accessories, ductwork, and belt tension, followed by startup steps and fan rotation checks.
Describes how the thermostat controls the unit, fan speed selection, and system operation during cooling cycles.
Details normal operating conditions (pressures, temps) and control adjustments for high/low pressure and motor windings.
Provides general data for integral air-cooled units, including tons, capacity, EER, refrigerant, weights, and fan/motor specs.
Outlines periodic, monthly, semi-annual, and annual maintenance tasks, including filter inspection, coil cleaning, and electrical checks.
Provides a step-by-step guide for cleaning condenser coils, including safety warnings, chemical handling, and cleaning methods.
Emphasizes procedures for refrigerant conservation, emission reduction, and responsible handling during service.
Details methods for leak testing refrigerant systems, including confined space hazards and safety precautions.
Covers pressure testing procedures using nitrogen, leak detection methods, and explosion hazard warnings.
Explains refrigerant evacuation using vacuum pumps and the process for charging the refrigerant system safely.
Lists monthly checks for air filters, coils, belt tension, and operating pressures.
Covers semi-annual tasks like fan alignment and lubrication, and annual tasks like electrical connection checks and casing inspection.
Addresses issues where the entire unit does not operate, including possible causes like power interruption or thermostat issues.
Lists causes and remedies for the fan running but the compressor failing to start, such as low voltage or control issues.
Explains reasons why the unit might be held off by safety controls, like high pressure or refrigerant leaks.
Details potential causes for insufficient cooling, such as airflow restrictions, refrigerant charge issues, or thermostat settings.
Identifies common causes for the unit short cycling, including thermostat issues, loose connections, or restricted airflow.
Lists problems and solutions when the compressor runs but the fan does not, such as faulty switches or fan binding.
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