The robot is specified to work in an ambient temperature of maximum 55 °C (see technical specifications). The waterways (hoses, pipes and nozzles) can however handle temperatures up to 80 °C. If hot water is used, make sure that water leaving the nozzle does not heat any sensitive parts of the robot above its specification.
When storing the robot where there is a risk of freezing temperatures, make sure it is emptied of all water, in order to protect it from damages.