Document the air exchange fan in the main workshop

MakerSpaceNewcastle · Oct 11, 2024 · a58fab2 · a58fab2
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diff --git a/src/SUMMARY.md b/src/SUMMARY.md
@@ -31,7 +31,8 @@
     - [Large Air Compressor](./equipment/large_air_compressor/README.md)
 - [Infrastructure](./infrastructure/README.md)
     - [RFID Access Controllers](./infrastructure/rfid_access_controllers/README.md)
-    - [Air Filtration](./infrastructure/air_filtration/README.md)
+    - [Main Workshop Air Exchange](./infrastructure/main_workshop_air_exchange/README.md)
+    - [Basement Workshop Air Filtration](./infrastructure/basement_workshop_air_filtration/README.md)
     - [Music Server](./infrastructure/music_server/README.md)
     - [Tassimo machine/water dispenser](./infrastructure/bosch_tassimo_machine/README.md)
     - [DeLonghi Coffee Machine](./infrastructure/delonghi_coffee_machine/README.md)

diff --git a/src/infrastructure/README.md b/src/infrastructure/README.md
@@ -7,6 +7,7 @@ The things that make Maker Space usable.
 - [Hot water dispenser](./bosch_tassimo_machine/)
 - [DeLonghi Magnifica coffee machine](./delonghi_coffee_machine/)
 - Vending machine
-- [Air filtration](./air_filtration/)
+- [Main Workshop Air Exchange](./main_workshop_air_exchange/)
+- [Basement Workshop Air filtration](./basement_workshop_air_filtration/)
 - [Music server](./music_server/)
 - [Wiki](./wiki/)
diff --git a/src/infrastructure/air_filtration/README.md → ...asement_workshop_air_filtration/README.md b/src/infrastructure/air_filtration/README.md → ...asement_workshop_air_filtration/README.md
@@ -1,4 +1,4 @@
-# Air Filtration
+# Basement Workshop Air Filtration
 
 Both the north and south basement workshops have Axminster air particle filters.
 These are suitable for removing the worst of suspended dust from the air.

diff --git a/src/infrastructure/main_workshop_air_exchange/README.md b/src/infrastructure/main_workshop_air_exchange/README.md
@@ -0,0 +1,13 @@
+# Main Workshop Air Exchange
+
+There is an air extraction fan for the main space fitted above the front door.
+The control for it is located in the south west corder of the ground floor main workshop.
+
+When operated, the negative pressure in the room draws in fresh air from whatever source is available.
+Such sources include:
+
+- The ceiling vent above the inner door, via the ceiling void, eventually feeding from the vents in the boiler room
+- Any open windows (e.g. in the goldfish bowl)
+- Via other routes through the building when the inner door is held open (e.g. via Vane or the rear/courtyard door)
+
+This fan can be used to maintain the main workshop at a comfortable balance of temperature and air quality.