42khrt24 appears to be the indoor unit model number for a Carrier air conditioner system. Here’s what I can tell you about it:

Specifications:

• Cooling capacity: 23,000 BTU/hr
• Dehumidification rate: 2.6 liters/hour
• Airflow rate: 560/590/620 cubic meters per hour (low/medium/high)
• Sound pressure level: 42/45/48 dB(A) (low/medium/high)
• Dimensions: 1030 x 313 x 221 mm (width x height x depth)
• Weight: 17 kg

Features:

• Split-type air conditioner
• Carrier Optimax series
• Wall-mounted unit
• Remote control
• Sleep mode
• Turbo mode
• Self-diagnosis function
• Refrigerant type: R22

Additional information:

• 42khrt24 is typically paired with the outdoor unit model 38khrt24.
• This air conditioner system is designed for cooling rooms up to approximately 70 square meters (750 square feet).
• It is available in some regions, but not all.