Patent ID: 8857057

Claim:
An apparatus for facilitating servicing of a liquid-cooled electronics rack, the apparatus comprising: a coolant tank; a coolant pump in fluid communication with the coolant tank for pumping coolant therefrom; multiple parallel-connected coolant supply lines coupling the coolant pump to a coolant supply port of the apparatus, each coolant supply line of the multiple parallel-connected coolant supply lines including a coolant control valve for selectively controlling flow of coolant therethrough pumped by the coolant pump from the coolant tank to the coolant supply port of the apparatus, wherein at least one coolant supply line of the multiple parallel-connected coolant supply lines includes at least one filter, and wherein one coolant supply line of the multiple parallel-connected coolant supply lines is a bypass coolant supply line with no filter; and a coolant return port and a coolant return line coupled between the coolant return port and the coolant tank, wherein when operational, the apparatus facilitates filling of coolant into a cooling system of a liquid-cooled electronics rack by allowing for selective filtering of coolant inserted into the cooling system of the liquid-cooled electronics rack.