Vending
Miser
®
VM150 / VM151
Installation
Instructions
(cont'd.)
Copyright © 1997-2008
Revision 12-2008
Part #23020
Printed in the U.S.A.
8.
To mount the sensor, use the supplied plastic mounting bracket shown below. Use appropriate fasteners to secure it
to the selected surface. Then snap the sensor over the bracket. To remove the sensor at a later date, snap the sensor
off the bracket by pulling the sensor straight out.
shown in the diagram to the right. A maximum of four Misers can be daisy-chained in this fashion. It is acceptable
to mix VendingMisers with SnackMisers, PlugMisers, and/or CoolerMisers provided the sensor coverage is accept-
able for all devices sharing the sensor.
Power-Up Testing and Install Validation
Plug the VendingMiser into the wall outlet. The following should occur:
• The vending machine should power up immediately.
• The Green LED should flash twice to indicate that the temperature sensor is functional.
• The Amber LED should then come on as the VendingMiser attempts to synchronize with the compressor's
operation. This typically will require that the compressor cycle on and off.
• The Red LED should come on, indicating occupancy detection.
The PIR sensor must be allowed to stabilize for several minutes before its placement can be verified. Once the sensor
is warmed up, it will flash at the slightest movement within its field of view. Validate that the sensor can "See" an
occupant at, or approaching, the vending machine. If necessary, relocate the sensor and repeat the coverage test. The
Red LED on the VendingMiser will mirror the state of the PIR sensor, with an additional 3 second delay. This verifies
that VendingMiser is communicating with the PIR sensor.
As a final functional test, the VendingMiser will power-down the first time only after installation approximately two
minutes after the area around the machine is vacant and the compressor is determined to be not running. Covering the
PIR sensor or temporarily setting it to face the wall will allow validation of the power-down operation if so desired.
Following this initial power-down, the VendingMiser will operate with standard time-outs.
NOTE:
The VendingMiser will flash all three LEDs simultaneously and light a RED LED in the PIR sensor if the
vending machine has failed and will not shut down its compressor after several hours of use. Since this prohibits the
VendingMiser from shutting down the machine, please call the machine owner service line for machine service.
9.
The occupancy sensor cable has a telephone style con-
nector at its end. Plug this connector into the center
socket on the VendingMiser. The sensor cable should
be secured to the wall or ceiling by covering it with
plastic low voltage wire raceway.
10. If a Secondary VendingMiser is being installed, use
the supplied 3 Meter (10 feet) phone style cable to
connect the OCCUPANCY SENSOR connector on
this VendingMiser to the REPEATER connector on
the Primary VendingMiser. Only remove the yellow
label coving the REPEATER connector on the previ-
ous unit in the chain. Additional Secondary Vending-
Misers can be daisy-chained using the same techniques
PIR
Sensor
Sensor
Connector
Repeater
Connector
Sensor
Connector
Repeater
Connector
Sensor
Connector
Repeater
Connector
Sensor
Connector
Repeater
Label
Primary
Secondary
Miser
Secondary
Miser
Secondary
Miser
PIR Sensor
TOP
Sensor Mounting
Bracket
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