HVAC: Difference between revisions

Browse history interactively

← Older edit Newer edit →

VisualWikitext

@@ Line 1: / Line 1: @@
+== Cooling ==
+=== Lounge ====
+There is a wall mount A/C unit that is sort of old and may contain mold in the lounge.
+=== Shop ===
+There is a heat pump / air handler cooling system mounted on the ceiling and roof.
+These are some very vague and poorly collated notes about that:
+    heat pump stat - but we aren't using the heat pump for heating, so we
+    don't even need the fancy board since it's for defrost. we use it when
+    we're cooling only. Right now, the wire from the roof is wired to make
+    it so when power is on (7,9,11) PP1-1 - it runs all the time. There is
+    no relay control of it that's active. the red wire in the control wire
+    will throw a relay on and off to control the heat pump.
+    but, we don't need to use the heat mode of the unit and it's not wired
+    upstairs for it at the moment, so we should set up the filtrete like so -
+      take off silver jumper
+      use RC and Y. (normal cooling, not heat pump cooling - the transformer
+    is ganged right to the relay up top).
+      thin red wire on the transformer goes to RC
+      thick red wire from the roof goes to Y
+      blue and white should be stuck together like they are.
+    we also need to put the air handler/fan unit on the coil that hangs down
+    (big tan thing) run always if the heat pump is on, since it will ice up
+    otherwise.  However, it's also useful when things aren't in cooling mode
+    for running some air from outside to the shop, so we want a switch that
+    can manually trigger the relay that will be controlling the air handler.
+=== Upstairs ===
+There is an AC unit in the comms/hvac closet upstairs near the side stairs. TBD documenting that.
 == Heating Zones ==
 The upstairs and the downstairs are the 2 separate heating zones.