Panel Air conditioner utilizes closed loop design to maintain clean and cooled air in electronic panel. To achieve this two entirely separate air circulation circuits are provided in Panel Air Conditioner. One circulation circuit sucks hot clean air from down of electronic control panel in to panel air conditioner and after passing it across evaporator of Panel Air Conditioner becomes cooled and dehumidified. Same cooled and dehumidified air is supplied to electronic control panel from top of the Panel Air Conditioner. The second circulation circuit makes use of ambient air to remove heat out of condensers and then to atmosphere from panel air conditioner. These two air circuit are separated by a partition in Panel Air Conditioner to ensure closed loop design and to keep electronic components of control panel away from dust and humidity present in factory shop floor.
| S. No. | Model | SIGMAC01 | SIGMAC02 | SIGMAC03 | SIGMAC07 |
| 1 | Capacity – Kcal/Hr | 900 | 1350 | 2000 | 3000 |
| 2 | Capacity – Watts | 1050 | 1575 | 2325 | 3500 |
| 3 | Power input | 1F -230V-50Hz | |||
| 4 | Power Watts | 750 | 900 | 1400 | 1750 |
| 5 | Refrigerant | R-134A (Eco-friendly) | |||
| 6 | Dimension – mm (LWH ) | 390X250X650 | 390X250X650 | 390X250X650 | 390X250X650 |