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General| Brand | Bard |
|---|---|
| Model | MEGA-TEC W120AP |
| Category | Air Conditioner |
| Language | English |
Describes the Bard cooling system composed of MEGA-TEC units and LC6000 controller.
Explains the TEC-EYE tool for diagnostics, setup, and operation of the MEGA-TEC unit.
Outlines the hierarchical menu structure of the TEC-EYE interface for navigating functions.
Performs a diagnostic test of all unit functions to quickly determine operation.
Describes how to turn the wall-mount unit on or off using the TEC-EYE.
Covers acknowledging active alarms and clearing cleared alarm conditions and logs.
Monitors space temperature in orphan mode; uses a 10k ohm NTC thermistor.
Allows unit operation without the LC6000, using the return air sensor for control.
Describes cooling stages with and without an economizer, including free cooling.
Describes the EEV as a stepper motor controlling refrigerant flow for superheat.
Monitors suction system pressures for refrigerant circuit 1 and 2.
Used to calculate superheat and control the EEV; measured with a 10k ohm NTC thermistor.
Detects potential ice buildup on the evaporator coil and deactivates the compressor.
EEV opens/closes to maintain 10° superheat; low superheat triggers aggressive closing.
Unit uses MERV 8 filters; dirty filter switch indicates replacement need.
Monitors liquid line pressure for fan speed control and system monitoring.
Monitors liquid refrigerant temperature leaving the condenser.
Discusses three-phase scroll compressor start-up and rotation verification.
Explains the CCM's role in managing compressor operation, including timers and protection.
Prevents frequent compressor cycling, adjustable from 30 seconds to 5 minutes.
Safety device that opens if system pressure reaches 650 PSIG.
Details minimum on/off times and stabilization periods for compressor stages.
Guidelines for using R-410A refrigerant, including equipment and safety.
Critical safety precautions for handling R-410A and polyol ester oil.
Step-by-step guide for routine maintenance tasks on the unit.
