Reactor Coolant Injector

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Reactor Coolant Injector
Reactor Coolant Injector ig.png
Grid Reactor Coolant Injector (LZH).png
Type Machine
Tool Grid Wrench.png
Armor rating {{{armorrating}}}
Damage {{{damage}}}
Durability {{{durability}}}
Mining level {{{mininglevel}}}
Stackable Yes (64)
Flammable No
Danger {{{danger}}}
Protection {{{protection}}}
Storage {{{storageslots}}}
Liquid Storage {{{lstorage}}} mB
Grid Pulling Upgrade.pngGrid Advanced Pulling Upgrade.png
Previous tier {{{prevtier}}}
Next tier {{{nexttier}}}
Energy Consumption
Max EU Input 128 EU/t (MV)
EU Use {{{eu_use}}} EU/t
EU Per Operation 1000 EU
EU Storage 48000 EU
EU Production {{{eu_produce}}} EU/t
Max EU Output {{{maxout}}}
Max Heat Input {{{maxhu}}} HU/t
Heat Use {{{hu_use}}} HU/t
Heat Production {{{hu_produce}}} HU/t
Max Kinetic Input {{{maxku}}} KU/t
Kinetic Use {{{ku_use}}} KU/t
Kinetic Production {{{ku_produce}}} KU/t
Technical Details
Operation Length {{{optime}}} Seconds
UU Cost {{{uu_cost}}}
First appearance {{{firstappearance}}}
Last appearance {{{lastappearance}}}
ID IC2:te@84, IC2:te@85
Flow Speed {{{fluidspeed}}} m/s
Player Speed {{{movespeed}}}

The Reactor Coolant Injector is a machine that repairs condensators in a Grid Nuclear Reactor.png Nuclear Reactor, in support of Single-Use Coolant Configuration or SUCC design.


There are currently two versions of the coolant injector, RSH and LZH, which repair the Grid RSH-Condensator.png RSH-Condensator and Grid LZH-Condensator.png LZH-Condensator respectively.

As of 2.6.133-ex110 they are still two separate machines, but one of the developers has said merging them is their intent.

Grid Ejector Upgrade.png
Grid RSH-Condensator.png
Grid Ejector Upgrade.png
Grid RSH-Condensator.png
Grid Advanced Machine Casing.png
Grid Compact Item Buffer.png
Grid Ejector Upgrade.png
Grid RSH-Condensator.png
Grid Ejector Upgrade.png
Grid Reactor Coolant Injector (RSH).png
Grid Ejector Upgrade.png
Grid LZH-Condensator.png
Grid Ejector Upgrade.png
Grid LZH-Condensator.png
Grid Advanced Machine Casing.png
Grid Compact Item Buffer.png
Grid Ejector Upgrade.png
Grid LZH-Condensator.png
Grid Ejector Upgrade.png
Grid Reactor Coolant Injector (LZH).png


The output face of the coolant injector (marked by a square, unlike the grid-texture of the other sides) faces away from the player when placed. This face should be directly touching either a Grid Nuclear Reactor.png Nuclear Reactor or one of its attached Grid Reactor Chamber.png Reactor Chambers in order to function correctly.

Coolant injectors with ready-state textures (RSH left, LZH right).
To prepare the coolant injector for operation, provide it power and (using the GUI) fuel: a Grid Block of Redstone.png Block of Redstone for the RSH or a Grid Lapis Lazuli Block.png Lapis Lazuli Block for the LZH (neither will use the other's block). If facing a valid destination, powered, and 'fueled' with at least one block, its texture should light up red or blue as appropriate, as seen in the image at left. With its 9 inventory slots, a coolant injector can hold up to 576 blocks at a time.

Note that a coolant injector will not draw the EU it needs (1K per injection) from the reactor it is attached to - which is a very good thing if your reactor produces more than the 128 EU/t a coolant injector can handle as a power tier 2 item. The coolant injector GUI also has no energy item slot, so power must be applied by in-world means.

Once there is a condensator that requires repair in the destination reactor, the coolant injector will instantly use a resource block and 1000 EU to fully repair it. 'Requires repair' is currently defined as below 15% of maximum durability; precisely 15% will not trigger the use of a block. Thus, Grid RSH-Condensator.png RSH-Condensators are only repaired once they drop below 3000 durability, and Grid LZH-Condensator.png LZH-Condensators below 15000 durability.

The use of a single Grid Redstone.png Redstone or Grid Lapis Lazuli.png Lapis Lazuli in a crafting grid is far more efficient than block injection (4.5:1 and 3.6:1 respectively, in the best case of a 100% repair), as noted in the condensator article; but the use of a coolant injector allows for fully automatic application of these single-use coolants, without any concerns of reactors overheating from misclicks or inattention.

Although it is possible to enclose a coolant injector inside the pressure vessel of a fluid reactor, it is not recommended; the use of a condensator in this case is counterproductive, due to its destroying heat instead of transferring it to the reactor coolant as is needed for power generation.