Do you have a question about the Vkin VRHA-18AN1DC/INB and is the answer not in the manual?
Overview of technical specifications for the heat pump models.
Table listing detailed technical parameters for each model.
General overview of component breakdown and part identification.
Visual breakdowns and part lists for indoor unit components.
Visual breakdowns and part lists for outdoor unit components.
Details and functions of connectors on the indoor unit control PCB.
Details and functions of connectors on the outdoor unit control PCB.
Identification of common wear parts for indoor units.
Image, specifications, and technical data for the water pump.
Identification of common wear parts for outdoor units.
Image and specifications for outdoor unit fan motors.
Instructions for operating the wired controller and adjusting settings.
List of error codes and their explanations for troubleshooting.
Tables correlating sensor resistance with temperature values.
Diagrams illustrating refrigerant and water piping configurations.
Diagrams showing electrical connections for indoor and outdoor units.
Guidelines and warnings for performing repair and maintenance tasks.
Recommendations and warnings for safe operation and use of the equipment.