Modular refrigeration system

An expandable refrigeration system for transferring heat from one fluid to another where a total load requirement is supplied by a plurality of modular units, comprising:

• an assembly of a plurality of readily interconnectable and transportable, substantially identical complete modular refrigeration units each of which includes:
• a housing means to carry at least one refrigeration circuit including an electrically powered compressor means, evaporator means and condenser means, each said housing further containing
• a first fluid flow passage means for flow of a first fluid in heat exchange relation with said evaporator means, and
• a separate second fluid flow passage means for flow of a second fluid in heat exchange relation with said condenser means,
• a first fluid supply means in fluid communication with the first fluid flow passage means to supply said first heat exchange fluid thereto,
• a first fluid return means in fluid communication with said first fluid flow passage means to remove said heat exchange fluid therefrom,
• second fluid supply means in fluid communication with said second fluid flow passage means to supply said second heat exchange fluid thereto,
• said first fluid supply means and said first fluid return means comprising header pipes extending laterally of said housing means, and
• releasable connecting means interconnecting adjacent ends of said header pipes of adjacent modular units to form a unitary fluid supply manifold and a unitary fluid return manifold for the assembly to interconnect the first flow passage of respective units in parallel, and to readily enable replacement or addition or removal of a unit from the system, and
• sensor actuated control means connected to each unit of the system to cause progressive actuation of respective units in a predetermined sequence in response to changing load demand.