Maintaining reactor temperature in Meltdown Crew determines whether your shift finishes cleanly or ends in a facility-wide radiation explosion. The cooling station requires constant communication between the control room operator and the coolant engineer to adjust water flow, relieve line pressure, and keep pipes clear.
How Reactor Cooling Works in Meltdown Crew
The cooling station operates in direct opposition to the core's heat generation. As fuel rods generate megawatts to meet shift demands, core temperatures climb rapidly. The control room monitor indicates core temperature and alerts when coolant flow drops too low or stability slips.
The cooling loop involves four concurrent mechanics:
- Turning the cooling valve to match flow demand percentages called out by the control operator.
- Manually venting line pressure using the release lever before it hits dangerous thresholds.
- Clearing trash and debris from the flooded room's floor drain to prevent pump shutdowns.
- Monitoring electrical power to ensure the water pump remains online.
Setting Coolant Flow and Handling Pressure
Core heat scales with the number of active fuel assemblies in the reactor floor. When operating with a single rod on early shifts, flow demand remains modest, but higher demand shifts require aggressive valve adjustments.
| Active Fuel Demand | Baseline Valve Setting | Target Operating Notes |
|---|---|---|
| 1 Fuel Rod | 5% – 10% | Watch initial heat spikes; release slight line buildup |
| 2 Fuel Rods | 20% – 25% | Requires routine calls from the control room to match surge |
| 3 Fuel Rods | 30% – 40% | Core temp rises fast; vent pressure frequently |
| 4+ Fuel Rods | 50% – 75%+ | Heavy flow; high risk of bursting pipes or tripping the pump |
Relieving Coolant Pressure
Increasing coolant valve flow causes pressure in the line to rise. The control console explicitly notes that the pump will shut off if pressure exceeds 30 MPa.
To prevent pump failure, pull down and hold the pressure release lever located in the coolant bay until the gauge drops back down into the safe green zone. Failing to vent pressure trips the system, instantly halting coolant circulation and overheating the core within seconds.
Dealing With Flooding, Clogged Drains, and Burst Pipes
The coolant room frequently floods with contaminated water. This flooding stems from damaged components and pipe leaks that deposit seaweed, trash, and debris directly across the facility floor.
Unclogging the Floor Drain
Accumulated junk flows directly into the drainage grate. When this drain clogs:
- Water levels rise across the coolant bay floor, impairing vision and movement.
- Flooding triggers emergency plant alarms.
- The high-water alarm automatically trips the coolant pump offline.
To restore function, submerge into the pool, pull garbage and seaweed out of the drain opening, and toss the debris into a utility cart or take it directly to the disposal chute.
Pipe Repair
If a pipe bursts in the disposal area or coolant conduits, it will continuously drop trash and spew water. A player equipped with a handheld welding gun must approach the rupture and weld the pipe break shut to halt the leak.
Restoring Pump Power and Blown Fuses
Coolant flow stops immediately whenever electrical failure strikes the plant. If the coolant engineer hears the flow die or the control operator spots a red pump warning on the screen, check the electrical panel immediately.
- Locate the blown switch in the electrical room or breaker panel.
- If the room has lost general illumination, navigate using an active handheld flashlight.
- Replace burned-out standard fuses by inserting a fresh fuse from the storage tables into the blown slot.
- Flip the pump power switch back to the "on" position to resume water circulation.
Communication Roles Between Control and Coolant Bay
Because the coolant bay engineer cannot see the reactor core display or read exact megawatt progress, coordination over proximity voice or internal landlines remains mandatory:
- Control Room Operator: Tracks active core temperature, monitors the rod layout grid (such as A1, B1, or C3), and tells the coolant operator the exact percentage adjustments needed.
- Coolant Bay Operator: Turns the valve to requested levels, holds the pressure release lever to keep readings under 30 MPa, clears the drain grate, and confirms when line pressure has stabilized.
Frequently Asked Questions
Why did the coolant pump suddenly turn off?
The pump automatically cuts out if line pressure exceeds 30 MPa, if the flooded room's drain clog triggers an emergency high-water alarm, or if an electrical fuse blows in the electrical room.
How do I unclog the flooded coolant drain?
Wade into the water pool near the drain, manually interact with the tangled debris or seaweed to pull it off the grate, and clear the items away into a nearby cart or disposal area.
Can one control rod manage multiple fuel rods?
Control rods placed in adjacent reactor floor slots help suppress heat spread to neighboring fuel rods in a grid pattern. Control rods must be inserted into the floor before inserting fragile fuel rods.
