SWT03250 Mini Pressure Switch

Description

Trane SWT03250 Mini Pressure Switch (HP)

Mini Presure Switch HP SWT03250 details;

• Trane Chiller Mini Pressure Switch, High Pressure 44.5 NC 35. Bar, Manuel Reset
• Maximum Pressure: 44.5 Bar
• Connection: 1/4″
• Refrigerant: R134A/R410A
• Model Number: 061F9257
• Trane Part Number: SWT03250
• Commonly Used on Trane Scroll Chiller Models
• Replaces / Supersedes: SWT-3250, SWT-3250

Trane Chiller documentation for Mini Pressure Switch (HP) can be downloaded from below links;

• CGAM Chiller Model Mini Pressure Switch (HP) (Product Catalog, Sales Brochure, Installation Operation Maintenance)
• CXAM Chiller Model Mini Pressure Switch (HP) (Product Catalog, Sales Brochure, Installation Operation Maintenance)
• CGWH Chiller Model Mini Pressure Switch (HP) (Product Catalog, Sales Brochure, Installation Operation Maintenance)
• CCUH Chiller Model Mini Pressure Switch (HP) (Product Catalog, Sales Brochure, Installation Operation Maintenance)
• CGWN Chiller Model Mini Pressure Switch (HP) (Product Catalog, Sales Brochure, Installation Operation Maintenance)
• CCUN Chiller Model Mini Pressure Switch (HP) (Product Catalog, Sales Brochure, Installation Operation Maintenance)
• CGCL Chiller Model Mini Pressure Switch (HP) (Product Catalog, Sales Brochure, Installation Operation Maintenance)

A High Pressure Switch (HPS) and a low pressure switch (LPS) are protective devices for the compressor and refrigeration circuit. The high pressure switch monitors the system for an inoperative outdoor motor, and/or a dirty/restricted condenser (outdoor) coil. The low pressure switch monitors the refrigeration system for a loss of refrigerant charge. And may also be helpful in stopping the evaporator (indoor) coil from freezing up due to a dirty filter or low airflow over the coil. Therefore, I say “may” because the low pressure switch cut-out setting could be set too low (15-20 lbs.) to be of any help. An evaporator coil could start to form ice at 30 lbs. low pressure charge.