To Next PageTo Next PageWhat causes Trane Voyager Commercial power exhaust fan to cycles ON/OFF?
If the power exhaust fan on your Trane Air Conditioner is cycling ON and OFF, here are a couple of potential reasons: * **Space Pressure Deadband is too narrow:** Increase the Space Pressure Deadband. * **Space Pressure Setpoint is too high/low:** Verify Building Pressure with maximum building exhaust enabled. Adjust Space Pressure Setpoint accordingly.
What to do if Trane Air Conditioner ODM's will not operate, CPR1 operates?
If CPR1 operates but the ODMs don't on your Trane Air Conditioner, check for the following: * **ODM has failed:** Check ODMs, replace if necessary. * **ODM capacitor(s) has failed:** Check ODM capacitors, replace if necessary. * **Wiring, terminal, or mechanical CC1 or CC2 contactor failure:** Check wires, terminals, CC1 and CC2. Repair or replace if necessary. * **ODF 20 or 34 relay has failed:** Check for proper voltage and contact closure. ODF20 and 34 have a 24 VAC holding Coil. If voltage is present, replace relay. * **RTRM is defective:** Locate the P3 connector on the RTRM. Check for 24 VAC at terminal P3-6. If 24 VAC is not present, replace RTRM.
What to do if Trane Air Conditioner power exhaust will not operate?
If the power exhaust on your Trane Air Conditioner isn't operating, check these items: * **Exhaust motor failure:** Check the exhaust fan motor and replace if necessary. * **XFR failure:** Check the exhaust fan contactor (XFR). Replace if necessary. * **ECA failure:** Perform the ECA Test Procedures. * **XFSP Failure:** Perform the Exhaust Fan Setpoint Test Procedures.
General| Brand | Trane |
|---|---|
| Model | Voyager Commercial |
| Category | Air Conditioner |
| Language | English |
Crucial safety instructions and warnings for installation and servicing of HVAC equipment.
Defines advisory symbols and general safety precautions for proper operation and personal safety.
Addresses environmental impact of refrigerants and responsible handling requirements.
Details essential safety requirements for electrical wiring, grounding, and personal protective equipment.
Guides users on the manual's structure, intended audience, and proper use for installation and maintenance.
Emphasizes adherence to EHS policies and local regulations for all work performed on the equipment.
Explains the coding system for 60 Hz unit model numbers, detailing components and specifications.
Details the coding system for 50 Hz unit model numbers, covering various configurations and specifications.
Provides a general overview of unit components, control systems, and acronyms used in the manual.
Outlines procedures for inspecting units for shipping damage and material shortages upon receipt.
Specifies required clearances for proper operation, access, and peak efficiency of the unit.
Details installation requirements for roof curbs and ductwork connections for commercial rooftop units.
Provides guidance on connecting ductwork to horizontal units to prevent noise transmission.
Explains the process of rigging units using spreader bars and ensuring proper placement on the curb.
Covers essential requirements for all units, including curb installation, ductwork, and shipping damage checks.
Details critical electrical requirements, including wiring, grounding, and component checks for safe operation.
Outlines necessary steps for gas heat installation, including piping, sealing, and pressure checks.
Explains condensate drain connection, trap installation, and overflow switch function for proper drainage.
Guides the installation of the Outside Air Pressure Sensor and pneumatic tubing for VAV units.
Warns about hazardous voltage and the need for power disconnection and lockout/tagout before servicing.
Describes the function and operation of the factory-mounted disconnect switch handle for safety.
Details essential guidelines for main power wiring, including grounding and conductor types for safe installation.
Provides equations and methods for calculating Minimum Circuit Ampacity (MCA) and Maximum Overcurrent Protection (MOP).
Explains the use and installation of various remote panels and sensors for unit control and system integration.
Details control options for Variable Air Volume systems, focusing on airflow and setpoint configurations.
Describes the RTRM as the primary module for interpreting sensor data and controlling unit functions.
Details the ECA/RTEM module for monitoring and controlling economizer damper positions based on air conditions.
Explains the EBA's function in tracking economizer dampers for exhaust airflow control.
Explains the RTAM's role in controlling supply air temperature and fan speed for VAV systems.
Details the ASCT feature designed to protect compressors by limiting start/stop cycles and ensuring oil return.
Explains how to set up unoccupied modes using terminals J6-11 and J6-12 for energy savings.
Describes how the economizer controls operate with Constant Volume (CV) units based on setpoints and ambient conditions.
Explains how the modulating power exhaust actuator follows economizer damper position for airflow control.
Details how mechanical cooling operates in CV and SZ VAV units when economizers are not utilized.
Discusses ventilation control for SZ VAV units, focusing on OA damper minimum position and airflow compensation.
Outlines the control scheme for SZVAV units with DCV, managing OA damper based on CO2 and airflow setpoints.
Addresses Traq functionality, overrides, and special considerations for damper position and airflow measurements.
Explains how space pressure control is managed using transducers and dampers for building pressure management.
Describes the control of supply duct static pressure using a transducer and setpoint adjustments.
Explains how supply air temperature can be reset based on zone or outdoor air conditions to optimize energy use.
Details modes of operation, including Off Mode, for constant volume and variable air volume applications.
Explains how zone temperatures are maintained during unoccupied periods for cooling and heating.
Describes how mechanical cooling integrates with economizer operation based on outdoor air suitability.
Outlines the sequence for gas heat ignition, stage control, and modulating burner operation for reliable heating.
Details the sequence for controlling electric heat stages, including delays and fan operation for maintaining zone temperature.
Explains the function of the clogged filter switch and its indication via RTOM diagnostics for filter maintenance.
Details the Ventilation Override modes (Pressurize, Purge, Exhaust) and their system impacts on airflow and components.
Describes critical safety features including Emergency Stop, Phase Monitor, and Low Pressure Control for protecting the unit.
Provides a checklist for essential steps before the initial unit startup, including safety and component checks.
Emphasizes the critical importance of correct electrical phasing for scroll compressors and how to verify it.
Details requirements for supply voltage and the impact of voltage imbalance on motor operation and longevity.
Outlines the initial steps for starting the unit, including switch positions and disconnect operation to ensure proper initialization.
Describes various test modes for checking unit component operation, outputs, and diagnosing potential issues.
Explains how to check and correct fan rotation direction to prevent damage and ensure proper operation.
Guides on measuring and verifying correct airflow (CFM) for CV and VFD-controlled units using performance curves.
Explains how the exhaust fan operates and is controlled by economizer damper position, including adjustment procedures.
Discusses the purpose and adjustment of economizer dampers to balance space pressure and airflow, referencing tables for settings.
Provides critical instructions and warnings for starting compressors, including initial setup and testing procedures.
Details the specific steps for starting compressors on 27.5-35 Ton standard efficiency units, including gauge setup and test sequences.
Outlines the procedure for starting compressors on 40-50 Ton standard efficiency VAV units, including second stage activation.
Details starting procedures for high efficiency units and standard efficiency constant volume units, including full load cooling activation.
Explains the purpose and location of line weights used to dampen vibration on compressor assemblies.
Provides guidance on checking compressor oil levels, appearance, and potential issues like overheating or motor burnout.
Explains the critical importance of correct electrical phasing for scroll compressors to prevent damage and ensure proper rotation.
Details the function and selection of precision suction restrictors for balancing oil levels in tandem compressors.
Describes characteristic sounds of scroll compressors and their implications for operation and reliability.
Explains the process of charging refrigerant to achieve acceptable subcooling levels for proper system operation.
Outlines startup procedures for gas heat units, including ignition system checks and gas pressure verification.
Details testing procedures for electric heat stages, including amperage draw and electrical data verification.
Lists final checks required after all startup procedures are completed to ensure proper unit operation in all modes.
Explains the mechanical cooling sequence, including compressor staging, fan control logic, and economizer interaction.
Details economizer control methods based on dry bulb, reference enthalpy, comparative enthalpy, and Traq systems.
Describes supply fan operation for CV and VAV units during heating modes, including VFD and relay control.
Explains the ignition module's function, status indicators, error codes, and high temperature limit controls.
Outlines the operation sequence for electric heat stages in CV units during heating calls, including delays and staging.
Provides detailed instructions for inspecting, replacing, and adjusting fan belts for proper tension and operational integrity.
Lists routine monthly checks, including filters, bearings, and electrical connections for ongoing unit health.
Details filter inspection, cleaning, or replacement based on unit model and filter dimensions for optimal airflow.
Describes the function and inspection of the condensate overflow switch for preventing water damage to the unit.
Lists essential maintenance checks for the cooling season, including drains, coils, dampers, motors, and electrical connections.
Details the process for cleaning evaporator, condenser, and reheat coils using specific methods to maintain unit efficiency.
Provides specific instructions for cleaning refrigerant coils, emphasizing safety precautions and cleaning methods.
Guides on the repair or replacement procedures for microchannel condenser coils, referring to service bulletins.
Instructs to record unit data in the provided blanks after completing all maintenance and startup procedures.
Details the use of fall restraint slots located on the unit top for safety during servicing operations.
Highlights warnings related to R-410A refrigerant pressure and the need for proper service equipment and handling.
Outlines procedures for removing or recharging refrigerant, emphasizing compressor protection and proper charging methods.
Provides guidance on checking compressor oil levels, appearance, and potential issues like overheating or motor burnout.
Explains the critical importance of correct electrical phasing for scroll compressors to prevent damage and ensure proper rotation.
Details the function and selection of precision suction restrictors for balancing oil levels in tandem compressors.
Guides on setting and verifying VFD parameters for supply and exhaust fans, according to motor specifications.
Explains how to access unit diagnostics and system status via RTRM LEDs and other indicators for troubleshooting.
Details a DC voltmeter procedure for checking unit status, identifying diagnostics, and verifying output signals.
Provides methods for resetting cooling failures and ignition lockouts, both from the space and at the unit.
Explains the ZSM service LED indicators for clogged filters, smoke detectors, and fan failures, aiding in diagnosis.
Details how to detect and diagnose faults related to the economizer damper actuator and its associated sensors.
Guides on verifying economizer status using the ECA/RTEM LED indicators and testing connected sensors for proper function.
Outlines testing procedures for the RTAM, including VFD output and static pressure transducer input.
Details steps to verify VFD output voltage for fan control in VAV applications and check for proper fan start.
Guides on testing the VFD keypad, fan start, speed, and fault conditions to ensure correct operation.
Provides probable causes and recommended actions for complete unit non-operation, covering power, controls, and safety inputs.
Addresses issues where the fan operates, but heating or cooling functions fail, guiding through diagnostics.
Guides on diagnosing issues when the unit operates but fails to maintain the setpoint, checking sensors and controls.
Details troubleshooting steps for compressor (CPR) and outdoor motor (ODM) failures, including wiring and contactor checks.
Lists and explains the programming parameters for the TR-200 VFD used for supply and exhaust fans, covering motor and limits settings.
Lists available wiring diagram numbers for TC/TE units, categorized by airflow type, schematic type, voltage, and description.
Outlines the warranty terms and conditions for commercial equipment, including coverage periods, limitations, and exclusions.
