Teaching equipment : Air conditioning unit

Air conditioning unit

DESCRIPTION   The air conditioning unit is delivered complete with instrumentation and with technical and instruction manuals. The components are of industrial quality. The operation is similar to that of larger capacity units. This unit is designed to be used to air condition existing premises. Treatment area in depression. Mixing chamber through induction. It is possible to measure what enters, what happens and what goes out. Transparent treatment chambers for easy visibility.

Easy access to the elements. Use of the refrigerant R134a as required by new standards All the inlets of the controller are connected to 04 mm banana bushings that makes it possible to use the unit in the manual or regulated mode (connection to the "regulation and air conditioning unit" RTC 200)

Mixing chamber
- Servo motor piloting three flaps simultaneously : new air - recycled air – extracted air
- Command 0 – 10 V for 0 – 100 % recycled air

Filtration
- Gravimetric rough filter
- Opacimetric thin filter

Cooling/deshumidification
- Single-stage trigger battery
- Fluid R 134 a
- Refrigerating group Qo 6,3 kW at + 5°C
- "pump down" regulation
- T.O.R. command
- Frosted-water battery
- Water 7 … 12°C controlled by 3-way valves and servomotor
- Frosted water group – condensation by assembled air on castor and equipped with quick-coupling flexibles
- Servomotor command 0 – 10 V for 0 – 100 % opening

Humidification
- Dry steam
- Capacity : 4 kg/h
- Adjustment and controller by digital display
- Electrode heating principle
- Command 0 – 10 V for 0...5 kg/h
- Pulverized water
- Only manual mode
- Pressure and flow measurement at pulverizer

Ventilation
- Draft fan
- Nominal flow : 1400 m3/h
- Frequency deviation on the engine
- Transmission by pulley-belt
- Extraction fan
- Nominal flow : 1400 m3/h
- Frequency deviation on the engine
- Direct coupling

Instrumentation
- 7 temperature and relative humidity measurements
- 8-columns manometer for static pressure measurement throughout the treatment
- Pitot Tube and liquid-column micro manometer for speed and air flow measurement
- Refrigeration fluid flowmeter and high and low pressure manometer on the direct spring-back group
- Condensation pressure adjustment on refrigeration group by pressostatic variator on a condenser fan.

Underframe
- Anodized aluminium extruded section
- Transparent lateral pans – easy to dismount
- Cross section 610 x 305 mm²