Description :

1. HEM-550 is the master sensor of HEM-1 guestroom HVAC energy Management System. This is not only an occupancy sensor, but also
a signal processor of the system.
2. With integration of various signals and logic sequence analysis, this sensor is able to verify the actual occupancy status of the room without detecting continued movements of the guest.
3. When guestroom is physically occupied, the HEM-550 will
command PP-116 to provide power for HVAC operation. After the guestroom is vacant, the HEM-550 will command PP-116 to shut off the power for HVAC operation to reduce the energy consumption.

Specification :

1. Power supply: 24 2 V AC / DC. 2. Detection range: 110, 15 x 15 m at 25C. 3. Relay output: form C, 24V / dry contact selectable. 4. Relay contact AC: 250V, DC: 30V, 5A resistive load. 5. Current drain: Standby: 20 mA, active: 10 mA. 6. High-temp limit 30 / 28 / 26C (85 / 82 / 79F). 7. Low-temp limit 15 / 13 / 11C (59 / 55 / 51F). 8. Mounting height: 1.8 ~ 3.6m. 9. Restart cycle 2 minutes, can be disabled. 10. Test indication Buzzer and LED, can be disabled. 11. Detectable speed 0.1~ 3 m/sec.(0.3~10 ft/sec.). 12. RFI immunity Av. 20 V/m (10~1,000 MHz). 13. Humidity: 95% RH max. 14. Temperature: -10C~60C (14F~140F). 15. Dimensions: 112 x 66 x 45 mm (4.4 x 2.6 x 1.8").

Features :

1. High density detection capability.
2. Selectable relay output format.
3. High-low temperature setbacks.
4. 2-minute restart cycle protection.
5. Audible & visible test indications.
6. Superior RFI and EMI immunity.
7. Occupancy status signal output.
8. Wall / corner / ceiling mount available.
9. Additional slave sensor connectivity.
10. 5-minute door open HVAC shut off.

• 
  Guestroom HVAC Energy Management Systems
• 
  Guestroom HVAC Energy Management Systems
• 
  HEM-2 System Master Sensors