BZ-200, BZ-250, BZ-250-347 Power Pack Auto/Manual Mode Switch BZ-250, BZ-250-347 only SPECIFICATIONS Voltages BZ-200, BZ-250... 120 277 VAC, 50/60 Hz, single phase BZ-250-347... 120 347 VAC, 50/60 Hz, single phase Load Requirements Ballast/ELV/MLV/Incandescent/LED BZ-200, BZ-250... 20 A @ 120 277 VAC BZ-250-347... 16 A @ 120 347 VAC E-Ballast/CFL... 16 A @ 120 277 VAC Motor BZ-200, BZ-250...1 HP @ 120/240 VAC BZ-250-347... 1/4 HP @120 347 VAC Plug Load (BZ-200, BZ-250)...20 A @ 120 VAC (BZ-250-347)...15 A @ 120 VAC Class 2 Output BZ-200 (w/relay connected)...225 ma @ 24 VDC BZ-250, BZ-250-347...225 ma @ 24 VDC Low Voltage Input, Control ON... 5 30 VDC Operating Temperature... -4 131 F (-20 55 C) Storage Temperature... -40 176 F (-40 80 C) UL/C-UL Listed Installation Instructions
DESCRIPTION The BZ-2xx series of power packs are the foundation for any low voltage lighting control system. The BZ-2xx series supplies low voltage power to occupancy sensors and other control devices, switching line voltage in response to signals from control devices. The BZ-2xx series of power packs attach to existing junction boxes or mount into fixture wiring trays. Low voltage wiring should use at least 22-gauge wire. High voltage connections should be appropriately sized for the breaker and load. Always check local building codes. After initial wiring is complete, check wiring diagrams to verify the power pack is wired correctly. Improper wiring can cause damage to the power pack, lighting system, occupancy sensors, and other control devices. INSTALLATION WARNING TURN POWER OFF AT THE CIRCUIT BREAKER BEFORE INSTALLING POWER PACKS OR SENSORS. Wiring 1. Make sure power has been turned off at the circuit breaker. 2. Connect wires as shown in the wiring diagram below, or as shown in the BI-LEVEL CONTROL section. Neut. Hot Ground 5-30 VDC In Hold ON Dry Contact 5-30 VDC In Hold OFF White Orange Brown BZ-2xx Blue Lighting Load NOTES: Orange, Brown, and wires are applicable only to the Low Voltage Wires BZ-250 and BZ-250-347. Control Common + Momentary Switch (optional) Any 3-Wire Sensor BZ-2xx power packs should be grounded to ensure signal integrity, not for safety ground. Low Voltage Momentary Switch Option Wiring 2-wire Push Button Manual ON 3-wire Momentary, DCC2 Manual ON Install Jumper Wire Multi-button Switch, LVSW-101 Do not use pilot or locator light connections S(x) Manual ON Com Visit our website for FAQs: www.wattstopper.com
Installation Notes Note: 1. Power packs should be installed in accordance with state, local and national electrical codes and requirements. 2. Power packs are designed to attach to existing or new electrical enclosures with 1/2 inch knockouts. 3. Most applications require UL listed, 18-22 AWG, 3-conductor, Class 2 cable for low voltage wiring. For plenum return ceilings, use UL listed plenumapproved cables. 4. The BZ-2xx is a Class 2 Output Power Supply, suitable for parallel interconnection of up to 4 units maximum. This power pack is UL Listed for Interconnection of Power Sources in accordance with National Electric Code. The BZ series uses an AC power relay and is not typically suited for highimpedance DC or dry-contact applications. OPERATION Control From Inputs With the BZ-200, BZ-250, and BZ-250-347, the load can be turned ON and OFF automatically using an occupancy sensor input. The BZ-250 and BZ-250-347 provide additional functionality allowing for low voltage input control from a timer, panel, or BAS input, and manually from an optional low voltage momentary switch. See the section on Low Voltage Inputs for details. Auto ON/Manual ON Slide Switch (BZ-250/BZ-250-347 only) Use the Mode Switch to select either the Auto ON mode, or the Manual ON mode. The mode will take effect within two seconds. Auto ON (Mode Switch UP - default) The occupancy sensor input, Hold ON input, and the optional momentary switch input can all be used to turn ON the load. When the load is turned OFF using the momentary switch, the BZ-250 and BZ-250-347 do not turn it ON automatically until after the sensor time delay expires. However, pressing the momentary switch before the sensor time delay expires will turn the load ON. When the occupancy sensor s time delay expires, the BZ-250 and BZ-250-347 revert to Auto ON mode and turn the load ON with the next input from the occupancy sensor. Manual ON (Mode Switch DOWN) Occupants must press the low voltage momentary switch to turn ON the load. When the occupancy sensor is the only input keeping the load ON, the load turns OFF when the sensor s time delay expires. If the sensor input re-triggers within 30 seconds after the load turns OFF, the load turns ON again. After 30 seconds expire with no sensor input, press the momentary switch to turn the load ON. Call 800.879.8585 for Technical Support
Local Manual Override Push Button Press the button to manually toggle the power pack relay ON and OFF. Power Loss Mode (BZ-250/BZ-250-347 only) In the event of a power loss, this determines whether the loads will turn on, turn off, or return to their previous state when power is restored. To set this, press and hold the Local Manual Override Push Button for the amount of time shown in the table below. Action Period LED Mode Held 6s 2-Flash Last Load State Held 9s 3-Flash Turn relay ON Held 12s 4-Flash Turn relay OFF Held >18s OFF Cancel-Exit and do not change mode or configuration LOW VOLTAGE INPUTS Four 5 30 VDC input wires are provided to control the load relay. The inputs may be used in combination or individually, depending on the needs of the application. See the WIRING section for wiring information. Control Inputs: Control ON (Blue wire) This input is intended for occupancy sensor input. Applying 5 30 VDC closes the relay in Auto ON Mode. Remove the voltage and the relay opens if no other input is holding it closed. Hold ON (Orange wire, BZ-250/BZ-250-347 only) This input is intended for timer or panel input. Applying 5 30 VDC closes the relay in Auto ON Mode. Remove the voltage and the relay opens if no other input is holding it closed. This overrides Control ON input. Hold OFF (Brown wire, BZ-250/BZ-250-347 only) This input is used for timer, panel, BAS or load shed input. Applying 5 30 VDC opens the relay. Remove the voltage and the relay can accept any other input. This overrides Control ON and Hold ON inputs. Momentary Input: Manual ON/OFF ( wire, BZ-250/BZ-250-347 only) This input is for a low voltage momentary switch. Applying 5 30 VDC momentary input changes the relay to the opposite state. This overrides Control ON, Hold ON and Hold OFF inputs. Visit our website for FAQs: www.wattstopper.com
BI-LEVEL CONTROL The diagram to the right shows how to configure BZ-2xx to provide bi-level lighting control with both Automatic ON and Manual ON features. As shown, upon occupancy detection load A turns ON automatically. To turn ON load B, the user must press momentary switch B. Both loads turn OFF automatically when the sensor time delay expires, or manually using switch A and B. If the sensor input re-triggers within 30 seconds after the load turns OFF, loads A and B turn ON again. After 30 seconds expire with no sensor input, you must press the switch to turn ON load B. Neut. Hot Ground White Orange Brown NOTES: Orange, Brown, and wires are applicable only to the BZ-250 and BZ-250-347. BZ-2xx power packs should be grounded to ensure signal integrity, not for safety ground. Neut. Hot Ground White Orange Brown BZ-2xx (A) AUTO ON Blue BZ-2xx (B) MANUAL ON Blue Control Common + Lighting Load (A) Low Voltage Wires Momentary Switch (A) Any 3-Wire Sensor Lighting Load (B) Low Voltage Wires Momentary Switch (B) Parallel interconnect for bi-level load control from a single sensor with manual ON LOW VOLTAGE OUTPUT OVERLOAD PROTECTION The BZ-2xx contains built-in short circuit and thermal protection circuitry that shuts down the +24 VDC output (low voltage red wire) to prevent permanent damage to the power pack. Removing the excess load from the output restores the BZ-2xx to proper operation. Connect the excess load to another power pack. Output is current limited. As the load increases, the BZ output will reach its model-specific maximum output current. Under these conditions, the output voltage may appear less then the nominal 24-V output and the BZ will indicate the overload conditions with a continuously blinking LED (as described in the LED Indicator section). In extreme cases, such as a dead short, the output voltage will appear near zero but will automatically return to normal operating conditions once the excess load is removed. Call 800.879.8585 for Technical Support
LED INDICATOR The LED on the left side of the BZ-2xx indicates the following conditions: LED OFF: no power to the BZ-2xx, or the + output is shorted. LED blinking continuously: current output limit is exceeded (too many sensors are connected to the power pack); + output shut down. LED ON, blinks once every 3 seconds: the relay is open (load OFF). LED ON continuously: the relay is closed (load ON). TROUBLESHOOTING The lights came ON automatically after I deliberately turned them OFF for a presentation. The BZ-2xx is set for the Auto ON Mode and the occupancy sensor time delay expired. The BZ-2xx reverted to Auto ON and then motion was detected. Consider increasing occupancy sensor sensitivity and/or time delay. Generate more motion during presentations. The load does not turn ON with occupancy detection. Mode Switch is set to Manual ON. Hold OFF input is active. The load does not turn OFF after sensor time delay expires. Hold ON input is active. Check sensitivity on the occupancy sensor. Verify that the time amount is the intended amount. Verify that the sensor is not being retriggered by unintentional movement or byplacement too close to a an air vent. The load does not respond when I press the momentary switch. Check wiring. The load does not come on automatically although the Mode Switch is set to Auto ON. Cycle power to the unit to reset operating mode to Auto ON. Mode Switch location was changed while the power pack was powered (line voltage). The load comes on automatically with occupancy although the Mode Switch is set to Manual ON. Cycle power to the unit to reset operating mode to Manual ON. Mode Switch location was changed while the power pack was powered (line voltage). No LED activity as described above. Check for excessive load. Check AC power. Visit our website for FAQs: www.wattstopper.com
ORDERING INFORMATION BZ-200 BZ-250 BZ-250-347 Description Power Pack Power Pack Power Pack Input Voltage Load Rating Output 120 277 VAC, 50/60 Hz, single-phase 120 277 VAC, 50/60 Hz, single-phase Ballast (A) 20 20 16 Incandescent (A) 20 20 16 Motor (hp) 1 1 1/4 120 347 VAC, 50/60 Hz, single-phase Plug Load 20 A, 120/240 VAC 20 A, 120/240 VAC 15A, 120/240 VAC Auto/Manual-ON Slide Switch Control Inputs 24 VDC, 225 ma w/relay connected 24 VDC, 225 ma 24 VDC, 225 ma No Yes Yes Control ON Yes Yes Yes Hold ON No Yes Yes Hold OFF No Yes Yes Momentary Input Manual ON/OFF No Yes Yes Override Button Yes Yes Yes Power Loss Mode No Yes Yes Call 800.879.8585 for Technical Support
WARRANTY INFORMATION WattStopper warranties its products to be free of defects in materials and workmanship for a period of five (5) years. There are no obligations or liabilities on the part of WattStopper for consequential damages arising out of or in connection with the use or performance of this product or other indirect damages with respect to loss of property, revenue, or profit, or cost of removal, installation or reinstallation. 2800 De La Cruz Boulevard, Santa Clara, CA 95050 800.879.8585 www.wattstopper.com 19695r4 6/2015 Please Recycle