background image

Installation Notes

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 plenum-approved cables.

4.  The BZ-150 is a Class 2 Output Power Supply, suitable for parallel 

interconnection of up to 10 units maximum. This power pack is UL Listed for 
Interconnection of Power Sources in accordance with National Electric Code.

OPERATION

With the BZ-150, the load can be turned ON and OFF automatically using an 
occupancy sensor input, a timer, panel or BAS input, and manually from an 
optional low voltage momentary switch.  Use the Mode Switch to select either the 
Auto ON mode, or the Manual ON mode. Remove power from the BZ-150 when 
changing the switch setting, or cycle power to it after changing the setting.

Auto ON (Mode Switch LEFT - default) 

The occupancy sensor input, Hold ON input and the optional momentary switch 
input can all be used turn ON the load. 

When the load is turned OFF using the momentary switch, the BZ-150 does not 
turn it ON automatically until after the sensor time delay expires (e.g., as might 
be required for a presentation). Pressing the momentary switch before the sensor 
time delay expires turns ON the load.

When the occupancy sensor’s time delay expires, the BZ-150 reverts to Auto ON 
mode and it turns ON the load with the next input from the occupancy sensor.

Manual ON (Mode Switch RIGHT)

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 ON the load.

Mode
Switch

UL 2043 Plenum Rated

Santa Clara, CA
800.879.8585

APPLIANCE

CONTROL

88T9

Auto

ON

Manual
ON

120/230/277VAC, 50/60Hz, 225mA output
20A ballast or incandescent load
Motor load: 1HP@120/240VAC 
Class 2 power supply

Model #:

BZ-150 Power Pack

08405r1

Low Voltage
Inputs

+24VDC

Common

Red

White

Neut.

Power Pack

Blue

Black

Red

Dry

Contact

Lighting

Load

277VAC

Black

120VAC

+12-24VDC In

Hold OFF

+12-24VDC In

Hold ON

Any 3-Wire
24VDC
Sensor 

Hot

Red

Brown

Orange

Gr

ey

Control

Momentary Switch (optional)

Low Voltage Wires

2-wire Push Button

Red

24VDC

Grey

Manual ON

3-wire Momentary, LVS-1

Red

24VDC

Grey

Manual ON

Install
Jumper
Wire

Multi-button Switch, L(x)S

Do not use pilot or locator 

light connections

Red

24VDC

Grey

Manual ON

S(x)

Com

Low Voltage 
Momentary 
Switch Option 
Wiring

Summary of Contents for WattStopper BZ-150

Page 1: ...quirements Ballast 20amp 120 277VAC Incandescent 20amp 120VAC Motor 1HP 120 240VAC Output 225mA 24VDC with relay connected Low Voltage Input Control ON 12 24VDC Hold ON 12 24VDC Hold OFF 12 24VDC Manual ON momentary switch required 12 24VDC Operating Temperature 32 104 F 0 40 C Santa Clara CA 95050 ...

Page 2: ... 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 sensor and other control devices INSTALLATION WARNING TURN POWER OFF AT CIRCUIT BREAKER BEFORE INSTALLING POWER PACKS WIRING Low Voltage High Voltage 24VDC Common Red White Neut Power Pack Blue Black Red Dry Contact Lightin...

Page 3: ...xpires e g as might be required for a presentation Pressing the momentary switch before the sensor time delay expires turns ON the load When the occupancy sensor s time delay expires the BZ 150 reverts to Auto ON mode and it turns ON the load with the next input from the occupancy sensor Manual ON Mode Switch RIGHT Occupants must press the low voltage momentary switch to turn ON the load When the ...

Page 4: ... inputs Momentary Input Manual ON OFF Grey This input is for a low voltage momentary switch Applying 12 24VDC momentary input changes the relay to the opposite state It overrides Control ON Hold ON and Hold OFF inputs BI LEVEL CONTROL WITH MANUAL ON The diagram to the right shows how to configure BZ 150s to provide bi level lighting control with both Automatic ON and Manual ON features As shown upo...

Page 5: ...them OFF for a presentation The BZ 150 is set for the Auto ON Mode and the occupancy sensor time delay expired The BZ 150 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 doe...

Page 6: ...her 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 Technical Support 800 879 8585 www wattstopper com 08616r3 6 2009 ORDERING INFORMATION Load Range Catalog No Description Input Voltage Ballast A Incan A Motor hp Output BZ 50 Power Pack 120 230 277VAC 50 60Hz 20 20 1 24VDC 225mA w r...

Reviews: