To Next PageTo Next PageWhy is my SystemAir Chiller running but not cooling?
If your SystemAir Chiller unit continues to run but isn't providing cooling, it could be due to an insufficient refrigerant charge. In this case, you should refill the refrigerant. Another possible cause is a clogged dehydrating filter, which would require replacement.
How to fix excessive noise in SystemAir SYSCROLL AIR CO/HP 40-75 Chiller?
Excessive noise in your SystemAir Chiller can stem from several issues. Start by checking the clamping brackets of the lines for vibrations. If there is a whistling sound from the thermostatic expansion valve, refill the unit. Also, check the dehydrating filter and ensure the compressor's locknuts are tightened. If the compressor itself is noisy, it may have seized bearings, requiring a compressor replacement.
What to do if one or both compressors are not working in SystemAir SYSCROLL AIR CO/HP 40-75?
If one or both compressors in your SystemAir Chiller are not working, begin by checking the electric circuit for any breaks, ground dispersions, or short circuits, and inspect the fuses. Also, check and tighten any loosened terminals. Other potential causes include intervention of the HP pressure switch (reset the pressure switch and control panel after addressing the cause), a broken control circuit fuse (check for ground dispersions and short circuits before replacing), thermal overload (identify and remove the cause), wrong wiring (check wiring of check and safety devices), low line voltage (check voltage and address system issues or inform the Energy Distributor), a short-circuited compressor motor (check winding continuity), or a seized compressor (replace the compressor).
What causes the HP alarm and stop of SystemAir Chiller unit?
If the HP alarm is activated and the SystemAir Chiller unit stops, the issue could be a faulty pressure switch, which should be checked and replaced if defective. Alternatively, the delivery valve might be partially closed, requiring it to be opened or replaced if faulty. Other possible causes include condensable gases in the circuit (drain the circuit) or a stopped condenser fan (check cables and motor, repairing or replacing them if defective).
Why is there ice on the suction line of my SystemAir Chiller?
If you notice ice forming on the suction line of your SystemAir Chiller, it could be due to incorrect overheating calibration. Try increasing the overheating. Also, check the refrigerant charge.
What to do when LP alarm is on and SystemAir Chiller stops?
If the LP alarm is activated and the SystemAir Chiller unit stops, it could be due to a gas leak. You should identify and remove the leak. Another potential cause is an insufficient refrigerant charge, which requires refilling.
Why is the liquid line of my SystemAir Chiller too hot?
If the liquid line of your SystemAir Chiller feels too hot, it may be due to an insufficient refrigerant charge. You should identify and address the cause of the charge loss and then refill the system.
Why is the liquid line frosting on my SystemAir Chiller?
If you observe frosting on the liquid line of your SystemAir Chiller, it could be because the liquid line valve is partially closed. Ensure that all valves are fully open. Another possible cause is a clogged liquid filter. In this case, replace the cartridge or the entire filter.
What causes low oil level in SystemAir SYSCROLL AIR CO/HP 40-75 compressor?
A low oil level in the compressor of your SystemAir Chiller can be caused by one or more gas or oil leaks in the circuit; identify and remove these leaks. It may also indicate a mechanical failure of the compressor, requiring intervention from a Service Centre. Another cause may be an anomaly of the oil heater of the compressor’s base; check the electric circuit and the resistor of the heater of the motor base, and replace any defective components.
General| Refrigerant | R410A |
|---|---|
| Cooling capacity | 40-75 kW |
| Compressor | Scroll |
| Power Supply | 400V/3Ph/50Hz |
| Type | Air-cooled chiller |
| Heating Capacity | 45-80 kW |
| Sound Power Level | 68 dB(A) |
Overview of unit's purpose and manual's scope.
Conditions for warranty validity and voiding factors.
Procedure for stopping and restarting the unit.
Explanation of manual conventions and symbols.
General safety compliance with directives and precautions.
Defines key roles: Owner, Installer, Operator, Engineer.
Rules for accessing the unit area and personnel safety.
General safety rules for operators and installers.
Safety measures for control, mechanical, and electrical hazards.
Specific safety steps before and during maintenance.
Identification of refrigerant, unit labels, and safety warnings.
Safety data and precautions for R410A refrigerant.
Procedures for unit inspection upon receipt and damage reporting.
Instructions for lifting, moving, and protecting the unit.
Guidance on securing the unit to foundations.
Precautions for storing the unit before installation.
Criteria for selecting unit location and ensuring adequate space.
Requirements and components for the external water circuit.
Details for connecting plant water lines to the unit.
Installation requirements for HP units during defrost cycles.
Information and components of the optional water buffer tank.
Electrical connection requirements, safety measures, and sizing.
Detailed instructions for making electrical connections to the unit.
Essential checks before unit start-up.
Step-by-step sequence for safely starting the unit.
Procedures for verifying unit performance post start-up.
Guidance for training end-users on unit operation.
Overview of the microprocessor control system.
Description of keypad buttons and their functions.
Explanation of the controller's menu structure.
Detailed breakdown of controller menu options.
Comprehensive list of unit alarms, codes, and statuses.
Overview of the microprocessor control system for RE units.
Description of the control terminal, LCD, and LEDs.
Details on the LCD display interface and information display.
Explanation of keyboard button functions for operation.
Lists and describes system alarms with codes.
Overview of unit features, capabilities, and construction.
Description of the unit's base and frame construction materials.
Details on compressor type, protection, and operation.
Description of the evaporator component and its specifications.
Description of the condenser coils and their construction.
Description of the condenser fan type and motor.
Overview of refrigerant circuit components and safety devices.
Description of the electrical control panel and its components.
List of available optional accessories for the unit.
Diagram illustrating the refrigerant circuit for CO units.
Diagram illustrating the refrigerant circuit for HP units.
Diagram illustrating the refrigerant circuit for RE units.
Graphs showing evaporator and desuperheater water pressure drops.
Graph detailing available static pressure for optional pumps.
Graph showing power input for optional pumps.
Physical specifications for SyScroll Air CO BLN models.
Physical specifications for SyScroll Air CO SLN models.
Physical specifications for SyScroll Air CO HT/HPF models.
Physical specifications for SyScroll Air HP BLN models.
Physical specifications for SyScroll Air HP SLN models.
Physical specifications for SyScroll Air RE BLN models.
Physical specifications for SyScroll Air RE HT/HPF models.
Physical specifications for SyScroll Air RE SLN models.
Tables detailing electrical specifications for different unit series.
Specific electrical data for the unit's compressors.
Specific electrical data for the unit's fans.
Specific electrical data for the unit's pumps.
Table showing weight distribution and mounting coordinates.
Dimensional drawings for SyScroll Air CO/HP 40-50 units.
Dimensional drawings for SyScroll Air CO/HP 60-75 units.
Dimensional drawings for SyScroll Air RE 40-50 units.
Dimensional drawings for SyScroll Air RE 60-75 units.
Diagram illustrating required clearances for unit installation.
General guidelines and responsibilities for unit maintenance.
Schedule and procedures for planned maintenance tasks.
Procedures for safely charging and checking refrigerant levels.
Information on compressor oil, replacement, and handling.
Instructions for cleaning and maintaining the condenser coils.
Description of the condenser fan components.
Procedures for checking and maintaining the dehydrating filter.
How to inspect refrigerant flow and humidity using the sight glass.
Checking and regulating the thermostatic expansion valve.
Maintenance procedures for the evaporator, including cleaning.
Lists unit anomalies, their causes, and corrective operations.
Recommended list of spare parts for the first two years of operation.
Information about the type of lubricating oil used for compressors.
Indicates where wiring diagrams are located within the unit.
General procedures for safely dismantling and disposing of unit components.
