Maybe its time for another one?
I`d ask the "old-timers" to let the students have a go at it first, please.
You`ve been called in to an outbuilding, approx 3M from the main property (a public house)
The outbuilding is being converted to a micro-brewery.
Within the room are 9 metal vats, used for fermenting the beer (
)
On the wall is a board, with a temperature controller for each vessel - with a relay (switch) output - don`t worry about the thermostat side of this....its all been done for you
Now:
against one wall are ten beer coolers - which consist of two parts:
part 1) A compressor, condenser, and water bath. When power is applied, the water in the bath is chilled.
part 2) A pump, and coil. The coil is immersed in the chilled water, and the pump drives the chilled water out to a coil embedded in the vessels.
All of the vessels and chillers must be removable from the room, for cleaning purposes, on a regular basis. The chillers are stand-alone units; with a 5A rated compressor section; and a 1A pump motor, which plugs into the body of the unit.
What we need:
To be able to control each chiller from the relay output of the temperature controller, and be able to remove the chillers from the room for cleaning.
To make matters a little worse:
each chiller "dumps" the heat returning from the fermentation units, by passing it through a "radiator" mounted externally to the building. These external units are fitted with a 24V fan, fitted with a longish lead and large plug to fit into its respective chiller unit. But the hole through the wall is too small for the plug, and you cannot drill the hole out. (The cable will go through).
There are two existing 4mm radial circuits,supplied by B32A RCBos. There is spare capacity to the DB.
You will note there are ten chillers, but only nine vessels. Any thoughts as to why?
Thoughts??
KME
I`d ask the "old-timers" to let the students have a go at it first, please.
You`ve been called in to an outbuilding, approx 3M from the main property (a public house)
The outbuilding is being converted to a micro-brewery.
Within the room are 9 metal vats, used for fermenting the beer (
)On the wall is a board, with a temperature controller for each vessel - with a relay (switch) output - don`t worry about the thermostat side of this....its all been done for you
Now:
against one wall are ten beer coolers - which consist of two parts:
part 1) A compressor, condenser, and water bath. When power is applied, the water in the bath is chilled.
part 2) A pump, and coil. The coil is immersed in the chilled water, and the pump drives the chilled water out to a coil embedded in the vessels.
All of the vessels and chillers must be removable from the room, for cleaning purposes, on a regular basis. The chillers are stand-alone units; with a 5A rated compressor section; and a 1A pump motor, which plugs into the body of the unit.
What we need:
To be able to control each chiller from the relay output of the temperature controller, and be able to remove the chillers from the room for cleaning.
To make matters a little worse:
each chiller "dumps" the heat returning from the fermentation units, by passing it through a "radiator" mounted externally to the building. These external units are fitted with a 24V fan, fitted with a longish lead and large plug to fit into its respective chiller unit. But the hole through the wall is too small for the plug, and you cannot drill the hole out. (The cable will go through).
There are two existing 4mm radial circuits,supplied by B32A RCBos. There is spare capacity to the DB.
You will note there are ten chillers, but only nine vessels. Any thoughts as to why?
Thoughts??
KME
