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Details Johnson Controls' warranty terms, limitations, and conditions for equipment and materials.
Information on chiller design standards, compliance with safety codes, and ISO 9002 accreditation.
Details on the unit's intended application and warnings against improper use or operation outside parameters.
Details on the unit's emergency shutdown feature via the control panel's Unit Switch.
Outline of detailed procedures required for chiller installation and initial start-up.
Instructions for field wiring, including power wiring requirements and recommendations for conductor types.
Table detailing operational limitations for temperatures and flows for YLAA chillers.
Comprehensive electrical data including power supply, voltage ranges, and compressor heater specifications.
Important notes and explanations regarding electrical installation, wiring, and component ratings.
Legend for electrical diagrams and notes on wiring practices, symbols, and component designations.
Basic checks to perform with the unit's customer power switched OFF before proceeding.
Procedure for checking the refrigerant charge, ensuring pressure and leak integrity.
Step-by-step guide for charging refrigerant after vacuuming, including specific procedures for evaporator and system.
Check for correct customer power cable connections to terminal blocks or circuit breakers.
Verification of unit's protective ground terminals and internal ground connections.
Checks to perform after applying power to the chiller and turning on the panel circuit breaker.
Steps for commissioning the Variable Frequency Drive (VFD) for the pump, including parameter adjustments.
Instructions for accessing Service Mode to enable drive parameters and adjust settings.
Pre-startup checks to be performed with the unit powered OFF, focusing on physical and piping integrity.
Checklist for startup procedures, including power checks, setpoint verification, and compressor rotation.
Classification of safety faults causing system or unit shutdowns and their display messages.
Description of system safeties that cause individual system shutdowns and auto-reset behavior.
Explanation of unit safeties that shut down all compressors and auto-reset behavior.
Details on unit fault messages like LOW AMBIENT TEMP, LOW LIQUID TEMP, and 115VAC UNDER VOLTAGE.
Procedure for manually resetting system lockout faults that occur after multiple consecutive errors.
Details on faults related to motor protector or high pressure cutout, affecting compressor and system operation.
Safety feature protecting compressors from liquid slugging due to low suction superheat in EEV systems.
Reference for fault and inhibit codes and instructions on how to reset them using tables.
Initiation of the chiller start sequence and regulation of chilled liquid temperature based on setpoints.
How the unit controls leaving chilled liquid temperature, including compressor staging and unloading.
Feature to prevent unit loading beyond preferred values, with specific limits based on compressor count.
Procedures for clearing history buffers and manually resetting system lockout faults.
A comprehensive guide to identifying and resolving common unit problems and fault conditions.
Troubleshooting steps for issues where the panel display is blank and the unit will not operate.
Troubleshooting steps for low suction pressure faults, including checking refrigerant charge and TXV.
Troubleshooting steps for high discharge pressure faults, including fan operation and refrigerant levels.
Troubleshooting steps for low liquid temperature faults, including setpoint adjustments and sensor checks.
Troubleshooting steps for motor protector or high pressure cutout faults, checking refrigerant and relays.
Troubleshooting steps for issues where compressors fail to start, checking demand, sensors, and contactors.
Troubleshooting steps for lack of cooling effect, including evaporator surface fouling and refrigerant charge.
Procedure for cleaning microchannel coils to maintain integrity and heat transfer properties.
Cleaning process for standard and Environment Guard coils to ensure coil integrity and warranty.
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