UL924 Emergency Bypass Project Part Number Ref. Data Sheet : Catalog Page 78 Overview UL924 Emergency Bypass is an option for Retrofit Interior (RI) and Relay Panel (RP) which provides energy management control of emergency lighting circuits during normal operation while maintaining emergency function during power loss. UL924 monitors normal power for drop-out. When drop-out occurs UL924 forces its relays On. Once the emergency transfer switch and generator supply backup power, the emergency lighting comes to life immediately. The UL924 option includes Relay Voltage Dividers (RVD) for separated normal and emergency circuits as well as provisions for user installed indicator lamp. Features Provides energy management control and emergency function Availability RI16, 32, and 48 RP16, 32, 48, and 64 16 Relay capacity Normal and emergency voltage separation Sequence of Operations 1. Emergency circuits are controlled from the optional UL924 Emergency Bypass. The UL924 configuration jumper is set for “Emergency action Close all relays”. 2. Power loss is detected by the UL924. 3. All relays connected to the UL924 are forced ON. UL924 capacitors power emergency relay function. No external power source or input is required for UL924 operation. 4. Relays not connected to the UL924 remain in their present state (On/ Off). Lighting Tough Relays (LTR) are mechanical latching type. 5. Generator transfer switch (not located in the RI/RP) reacts and allows generator to feed dedicated emergency circuits previously fed by normal (utility) power. The relays connected to the UL924 are already ON, so the only possible source of delay in emergency lighting is the generator or emergency transfer switch. 6. Dedicated emergency lighting circuits will remain On while emergency power source is applied. 7. Normal power is restored and the emergency transfer switch returns all circuits to normal power. 8. Relays connected to the UL924 will remain On during and after normal power restoration. 9. Relays not connected to the UL924 remain in their present state (On/ Off). 10. RI/RP resumes normal control of Relays and returns lighting to the correct level. General Specifications Construction: Printed Circuit Board Dimensions: 8.31”(211mm)H x 3.69”(94mm)W x 0.75”(19mm)D Weight: 6oz (177g) Mounting: Factory mounted in place of standard relay interface board Operating Environment: 32-125°F (0-50°C), 20-95%RH, non-condensing Certifications Maintains RI/RP UL Listing and all certifications Warranty Maintains RI/RP warranty UL924 Specifications Power In: 24VAC +/-10%, 30VA, 50-60 Hz (factory wired for normal power) Auxiliary Out: 24VDC for normal power indicator lamp (user installed option) Please note 200mA total is available from the Controller Board for Universal Inputs (UI), the Satellite / Station Network, and the UL924 Auxiliary Out. Relay Capacity: 16 LTR Configuration Jumper: 3 Pin Jumper Terminal No Jumper = Emergency action Disabled 1-2 Jumped = Emergency action Close all relays 2-3 Jumped = Emergency action Open all relays Test Jumper: 2 Position Jumper Terminal No Jumper = Simulated power loss Applicable Platform Specifications RI/RP16: UL924 Controls LTR 1-16 RI/RP32: UL924 Controls LTR 17-32 RI/RP48: UL924 Controls LTR 33-48 RP64: UL924 Controls LTR 49-64 LTR connected to UL924 are dedicated to emergency circuits. However, the remaining RI/RP components require normal (utility) power to function. DO NOT supply the RI/RP transformer with emergency power. BAS Router Field Devices Field Devices Field Devices Field Devices Satellite/Station Network Satellite/Station Network Satellite/Station Network Satellite/Station Network Retrofit Interior (RI) Relay Panel (RP) Zone Control (ZC) Satellite/Station Network Retrofit Kit (RK) Field Devices UL924 Emergency Bypass ControllerField Board Terminations (ZC) Satellite Devices www.BRTint.com : 800-241-9173 Blue Ridge Technologies® Board Terminations (RI / RK / RP) LS LVS Controller CTS OCC © 2014 Blue Ridge Technologies International, LLC All Rights Reserved. UL924-DS-V14.05 CTS (Capacitive Touch Station) LVS (Low Voltage Switch) / OCC (Occupancy Sensor) / LS (Light Sensor) General Architecture Standard-A USB Plug Micro-B USB Plug Internet IP Bluetooth Module Field Devices Field Devices Field Devices Field Devices Satellite/Station Network Satellite/Station Network Satellite/Station Network J3 Zone Control (ZC) Field Devices Micro-B USB Plug Field Devices Standard-A USB Plug LVS CTS Satellite Retrofit Kit (RK) Retrofit Interior (RI) Relay Panel (RP) J5 Satellite/Station Network Bluetooth Bluetooth Module BACnet MS/TP BAS Router Satellite/Station Network J1 Data Sheet : Catalog Page 79 OCC LS LVS (Low Voltage Switch) / OCC (Occupancy Sensor) / LS (Light Sensor) CTS (Capacitive Touch Station) UL924 Terminations Emergency Bypass Structure Generator Emergency Transfer Switch Emergency Power Distribution Panel G Normal (Utility) Power Retrofit Interior (RI) / Relay Panel (RP) Lighting Tough Relay (LTR) UL924 Lighting Load TEST JP2 1 2 3 24VAC 24VDC OUT Factory Wired for Normal Power 24VDC(+) Normal Power Indicator Lamp* 24VDC(-) Normal Power Indicator Lamp* LED 1 *User installed option. LTR Terminations Power LED RI / RP Transformer LEXP Terminations Phillips / Slot / Square Head Screw Terminals GND DI 24 DI 23 DI 22 DI 21 DI 20 DI 19 DI 18 DI 17 JP1 Configuration Jumper GND DI 32 DI 31 DI 30 DI 29 DI 28 DI 27 DI 26 DI 25 Test Jumper INPUTS 17-32 J9 POWER Wire Strip Length Indicator J13 Manual Override Lever TO J26 OF Controller Relay Output R N Ordering Information Line In See RI/RP Data Sheet for ordering information. N R INPUTS 1 J4 J5 J18 J19 B D A C ADDRES ress Controller Board Port per Mounting Hole DI Jumper 17-24* DI Jumper 25-32* Power LED DI Jumper 1-8* DI Jumper Normal Power Distribution Panel