Absorption Chiller Maintenance - Prolonged or Seasonal Shutdown
In the case of seasonal or prolonged shutdown,
refrigerant may migrate from the evaporator to the absorption chiller
causing a low refrigerant level in the evaporator pan and piping. Since
refrigerant is used to lubricate pump and motor bearings, lubrication from
an auxiliary source must be provided during the startup phase of operation.
Once an operating charge of refrigerant has been recovered from the
solution, the machine may be returned to normal operation.
This auxiliary circuit is usually
established by connecting city water to the external connections of the pump
In all cases, follow the manufacturer's