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Covers planning the refrigerating system, component layout, and unit placement.
Details on connecting suction and liquid lines, and securing pipes.
Specifies insulation requirements for suction lines to prevent overheating.
Ensures proper oil return to the compressor using siphons and slopes.
Guidance on when and how to add oil, especially for longer pipe runs.
Critical steps for setting vacuum to ensure air and humidity are below limits.
Ensures correct voltage matching and adequate power cable sizing.
Mandatory earthing and checking fan motor rotation direction for three-phase units.
Fitting evaporator thermostat and verifying correct compressor rotation direction.
Presents various refrigerating diagrams for different system configurations.
Guidelines for replacing the pressure relief valve safely and correctly.
Warning against tampering with valve seal; maintenance is not provided.
Recommendation for periodic checks of the pressure relief valve.
Regular cleaning of the condenser and checking electrical connections.
Procedures for checking refrigerant leaks based on gas load and frequency.
Checking compressor oil level and humidity indicator for system health.
Monitoring compressor noise for potential breakdowns or friction issues.
Control of fan speed based on condensing pressure for efficiency.
Description of the electrical box controlling unit functions via thermostat.
Protects the compressor from damage due to incorrect electrical phase connection.
Details on brackets for mounting the unit on vertical walls and vibration damping.
Function of oil separators for long pipe runs to ensure compressor lubrication.
Controls evaporator functions like defrosting and cold room thermostat.
Device to protect the unit from voltage fluctuations.
Protects against overloads, short circuits, and indirect contact.
Specific feature for scroll compressors.
Table detailing unit references, weights, and bracket dimensions for installation.
Diagnosing and resolving issues when the compressor does not start or runs briefly.
Causes and remedies for thermal circuit breaker intervention.
Troubleshooting high-pressure switch faults, often related to cooling.
Addressing issues where the compressor runs continuously for long periods.
Diagnosing problems related to run capacitors and starter relays.
Resolving high coldroom temperatures due to thermostat, evaporator, or airflow.
Causes and solutions for suction pipes frosting over.
Troubleshooting frosted or wet discharge pipes due to filter or valve restrictions.
General