MO-405 Maintenance and Operation of Active Solar Heating Systems  

This manual is a guide for engineers, planners, maintenance supervisors and all maintenance personnel involved in the operation, inspection, troubleshooting, repair and maintenance of liquid solar heating systems. That is, solar heating or cooling systems using liquid, rather than air, to gather heat, pumps to move it and tanks of water to store it. The manual is designed to be used in the field by the personnel performing the actual inspection, maintenance or repair of solar systems.