Window Type Air Conditioner Test Rig Manufacturer,Supplier and Exporter in India
Product Code : EL-RACLE-9355
Jlab Export is a leading Window Type Air Conditioner Test Rig Manufacturer,and suppliers in India
Built around a window-type air conditioner, this rig brings the pressures and readings of the unit out to an instrumentation panel for laboratory tests. It is mounted on a mild steel square tube frame with cast iron wheels. Students use it to study the vapour compression cycle, work out the COP and evaluate the tonnage capacity.
Specifications
| Frame | Mild steel square tube frame on cast iron wheels |
| Instrumentation | Panel mounted |
| Pressure gauge ranges | 0–300 psi and 30 inHg vacuum to +150 psi |
| Capacity | 4 kVA |
| Output | 230 V ±10% |
| Studies | Vapour compression cycle, COP, tonnage capacity |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 14–18 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Window AC Experiments for Students
In a window unit the compressor, condenser, expansion device and evaporator share one cabinet. The evaporator faces the room and the condenser faces outdoors. Students first trace this layout, using the Window Air Conditioning (Actual Cut Section) to show the parts inside the casing. They then run the rig, read the suction and discharge pressures, and plot the cycle on a p-h chart to find the theoretical COP.
For the tonnage test, students measure the air velocity across the room-side grille with a Handheld Anemometer Digital. They take the dry and wet bulb temperatures of the air entering and leaving with a Psychrometer. The mass flow of air times its enthalpy drop, read from the psychrometric chart, gives the cooling in kW. Dividing by about 3.5 converts it to tons of refrigeration.
Frequently Asked Questions
Why must the unit run for a while before readings are taken?
Pressures and temperatures keep changing for some minutes after the compressor starts, while the coils and the room air settle. Readings taken too early give a wrong COP and tonnage. Wait until both gauges and the outlet air temperature stay steady, and do not switch the unit off and on again straight away.
What does the tonnage test measure?
It measures the cooling capacity of the unit in tons of refrigeration. One ton of refrigeration is about 3.5 kW, the rate of heat removal that freezes one short ton of water at 0 °C in a day.
What changes the air flow measured at the grille?
The fan speed, a dirty air filter and anything blocking the grille all change it. The air flow is the measured velocity times the grille area, and the mass flow also depends on the air density. Clean the filter and keep the fan speed the same for every test run.
How does a window AC differ from a split AC?
A window unit holds every part of the cycle in one cabinet set in a wall or window opening. A split AC puts the compressor and condenser in an outdoor unit, joined to the indoor evaporator by copper lines. The cycle is the same in both.
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Last updated: 5 November 2026
