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Covers electrical, refrigerant, sharp, hot surface, flammable, explosive hazards.
Guidance on PPE, lockout/tagout, grounding, and maintenance safety.
Verifying unit condition and contents upon arrival.
Specifications for mounting pads and foundations.
Positioning guidelines for serviceability and ventilation.
Best practices for piping insulation and sizing.
Site selection and clearance requirements for outdoor units.
Requirements for connecting chiller to remote condenser.
Table 9 & 10 for system and piping refrigerant charge.
Compliance with codes, voltage utilization, and imbalance.
Warnings for hazardous voltages, refrigerant, sharp edges, hot surfaces.
Procedures for main power connection and grounding.
Importance of checking electrical phase sequence.
Overview of the controller display and diagnostic test.
How to start the pump and compressor.
How to stop the compressor, pump, and fans.
Silencing alarms and resetting faults.
Accessing and navigating the controller's program menu.
Changing values and saving settings.
Table 16 detailing fault logic and reset requirements.
Displaying and managing active alarms.
Adjusting compressor control parameters.
Adjusting temperature warnings and alarms.
Displaying coolant temp, pump status, HGBP position.
Displaying set point, actual temps, HGBP, compressor status.
Outline for initial chiller start-up.
Step 1: Connecting main power and checking phase.
Step 2: Filling the coolant reservoir with solution.
Step 4: Verifying all refrigerant valves are open.
Step 5: Setting the Freezestat appropriately.
Step 6: Turning on control power and resetting alarms.
Step 7: Ensuring coolant flow for operation.
Step 8: Setting temperature and observing operation.
Periodic maintenance tasks and frequency.
Weekly checks: condenser coil, temp, pump pressure, coolant level.
Monthly checks: electrical connections, voltage, amp draws.
Troubleshooting compressor/pump not starting.
Troubleshooting low or high refrigerant pressure.
Troubleshooting Freezestat and pump/discharge pressure.
Diagnosing temperature control problems.
Diagnosing cooling capacity issues.
General| Brand | Thermal Care |
|---|---|
| Model | NQA04 |
| Category | Chiller |
| Language | English |
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