Application
Retrofit a hotel room to reduce energy waste in unoccupied rooms.
Scenario
A hotel wants to cut its heating and cooling costs. To do this, the hotel plans to reduce energy consumption of PTAC units in unoccupied rooms. Currently the ventilation system in each room of the hotel is composed of a thermostat connected to a PTAC unit.
Solution
ILLUMRA Thermostats easily replace existing thermostats. The new thermostat communicates wirelessly with ILLUMRA transmitters and receivers. An ILLUMRA self-powered wireless Keycard Access Switch quickly surface mounts near the door inside each room. When a guest enters a room and inserts a room keycard into the keycard switch, the switch transmits an “occupied” signal to the thermostat. The thermostat receives the signal and automatically adjusts temperature set points to a narrow preset range (i.e. 69-71 degrees Fahrenheit). When the guest prepares to leave the room and removes the keycard from the switch, the keycard switch transmits an “unoccupied” signal to the thermostat. The thermostat receives the signal and automatically adjusts temperature set points to a wider range (i.e. 59 – 81 degrees Fahrenheit).
Additional Energy Savings:
Additional energy savings can be realized in this application by using ILLUMRA relay receivers to control lights and electrical devices in the room. When the Keycard Access Switch transmits a signal, lights and electrical devices will then be controlled along with the thermostat and PTAC unit.
Products
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| E3X-T02-U2W | E3T-C1AWH |
