Climate System

The Climate System's primary ecological output is condensation: water vapor converted to liquid water that the Rain System then delivers as rainfall.

Chiller Under Repair

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Overview

The Climate System's primary ecological output is condensation: water vapor converted to liquid water that the Rain System then delivers as rainfall.

What This System Is

Ecological Context

The Climate System's primary ecological output is condensation: water vapor converted to liquid water that the Rain System then delivers as rainfall. Without the Climate System, the rain cycle stops. The consequences cascade through every terrestrial and edge biome: the Prairie's plant community loses its main freshwater input; the Mangrove Forest's moist microclimate fails; cockroach, isopod, Amber Snail, and other moisture-dependent organisms face desiccation pressure. The Climate System is the physical foundation of the terrestrial food web. Secondarily, condensation-driven humidity across the interior glass surface creates localized moist zones that extend the activity windows of moisture-dependent organisms (Amber Snails on Lakeshore glass, periwinkles and Eastern Melampus on Marine Shore glass, isopods on moist substrate surfaces) beyond what passive atmospheric humidity alone would support.

What Is Confirmed

  • Four custom-built PVC atmospheric heat exchangers installed on Biomes 2-5 (54 cm x 41 cm, switchback coolant path, externally mounted).
  • Coolant: shared water/glycol mixture circulated by a laboratory chiller loop.
  • One BYT-7A015 12V pump per atmosphere branch; MOSFET PWM pump control from ESP32.
  • DS18B20 coolant probe in each atmosphere exchanger, reporting to the matching biome ESP32.
  • Previous working coolant temperature approximately 0°C.
  • Chiller currently under repair; chilling not currently active.
  • All exchangers externally mounted; the coolant circuit is outside the biosphere boundary.
  • The chiller pump plan is a bypass with a separate circulation pump and an external supply loop that the branch pumps tap; supply and branch pumping are distinct functions. Which pump will finally fill the supply role is not settled.
  • Six new horizontal biome exchangers are committed Fall scope, with the older Prairie and Mangrove Forest biome units to be removed. None is reported fabricated or installed.
  • The quick-disconnect couplings on the atmosphere exchanger lines let air into the coolant; a fix with permanent clamped couplers is planned but not executed.
  • PEX is retained for the loop rebuild (October 12, 2026); main-loop diameter is not selected.
  • Six separate pump floor panels are reported anchored (October 12, 2026); pumps are not reported mounted.

Active Tensions

Chiller downtime and rain cycle: The chiller remains under repair while the loop is rebuilt. Without active cooling, condensation is reduced or absent. The first ecological consequence is in the terrestrial realm: reduced rainfall to the Prairie and Mangrove Forest. The ecological chain from chiller downtime to plant health to herbivore and detritivore response is the most direct hardware-to-ecology dependency in the system. The plan is to fill, purge, and run all four atmosphere branches together in late October 2026, but no restoration date is confirmed.

Sensor reliability: The sensing pass has moved forward since June: Josue reports epoxy applied to the atmosphere and biome air sensors in mid-September, the Mangrove Forest biome sensor installed September 29, the Freshwater Lake and Seagrass Meadow water probes accepted October 7, and the Prairie atmosphere sensor installed and accepted October 14, 2026. The Prairie coolant probe and biome air sensor still need repair, and reliable response at every position is not established. Climate telemetry should still be treated as potentially incomplete until Hardware verifies each channel.

Cooling asymmetry: Today the documented exchangers serve the four atmosphere tanks, plus older biome units on the Prairie and Mangrove Forest that are slated for removal. Freshwater Lake and Seagrass Meadow have no atmosphere tanks; the Fall plan gives every biome, including those two, a new horizontal biome exchanger. New aquatic atmospheres are a later possibility only, after the core system works. The Freshwater Lake unit connects to the existing Daphnia/Moina temperature-limitation hypothesis in that biome.

Fall 2026 development direction (September 23, 2026 plan): The required operating core is the four existing atmospheres plus six new biome exchangers, ten thermal branches in all. The plan puts the floor and chiller loop before the rain and cloud work, reversing the September 8 order. After installation and calibration, the December 7-21 window aims to connect current measured Florida air and water temperatures, adjust exchanger setpoints automatically through the day, and log commanded versus measured biome response, if commissioning evidence supports it. Control is cooling-only: when a warmer target is unreachable it should stop cooling and report the target unmet. Exact locations and a lake-water data source are open, safe limits must come from commissioning evidence, and rain timing is a separate system. New aquatic atmospheres and active heating are post-Fall.