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General| Brand | Dunham-Bush |
|---|---|
| Model | WCFX 18 |
| Category | Chiller |
| Language | English |
Graphs showing pressure drops for Evaporator 1&2 Pass and 3 Pass.
Graphs showing pressure drops for Condenser 1&2 Pass and 3 Pass.
Critical measures to prevent freeze damage to unit components.
Overview of the Vision 2020i controller and its user interface.
How to read input/output statuses, compressor status, and history.
Procedure for gaining authorization levels for settings.
Accessing technician level settings and main menu.
Process for calibrating compressor Full Load Amps (FLA).
Steps to calibrate system sensors.
How to manually control digital inputs and relay outputs.
How to manually control compressor operation (on, off, load, hold, unload).
Overview of various control functions.
Programming compressor loading rates for efficiency.
Compressor protection against low evaporator pressure.
Compressor protection against high discharge pressure.
Procedure for calibrating compressor capacity based on amps.
Step-by-step operation sequence for lead and lag chillers.
Troubleshooting common electrical malfunctions and safety trips.
Procedures for refrigerant and oil charging.
Guide to common symptoms, causes, and remedies.
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