From Captain of Industry Wiki
Converts products into maintenance which is distributed to all machines, buildings, and vehicles that need it. Important as if there is not enough maintenance, vehicles and machines can break down temporarily.
|Required Research||Maintenance II|
|Boost by Unity||Available|
|Variants||Maintenance Depot (Basic)|
Maintenance II Depot
Maintenance III Depot
The Maintenance Depot is a building which produces Maintenance I, an item required for the upkeep of vehicles and a majority of machines. It can accommodate up to two Flat Conveyor inputs and has a maximum production rate of 135 / 60 when using the Iron recipe or 240 / 60 when using the much more efficient Steel recipe. As Maintenance I is a virtual item and automatically distributed, there is no output product to store or move via vehicles or conveyors.
|Water Extraction & Processing|
|Metallurgy & Smelting|
|Crude Oil Refining|
|Buildings (For Vehicles)|
|Housing & Services|
|Planned or Proposed|
|* Only available in the Supporter Edition|