TEXTILE: Testing Room Atmosphere

The THERMOSTATS and HYGROMETER CONTROL VALVES operates by compressed air.
The air input to the conditioning plant may come from outside or be recirculated air, or a mixture of both.
In all instance it is filtered before heating and conditioning.
A fan blows the conditioned air in to the laboratory through special ducts with lowered outlets in the ceiling.
All the windows are double glazed used to prevent unwanted air coming in from the corridor when people pass in and out of the laboratory.
Automatic two "towers" are used, one for adding moisture and one for subtracting moisture from the air.

Each tower draws in air from near floor level by an exhaust fan and discharges the air in an upwards direction.
The wetting unit consists of a double walled cylinder which contact porcelain ring.
A sprinkler fed from an automatic tank keeps the unit saturated with water. The drying unit contains silica gel for the drying agent
Temperature control is provided by thermostatically controlled heater of 1 kw .
The 1 kw heater will then raise the temperature to, and maintain it at, a cabinet can be given automatically controlled humidity and temperature