2
A19ZBC Technical Bulletin
Wiring
!
WARNING
: Disconnect the
power supply before wiring
connections are made to
avoid possible electrical
shock or damage to the
equipment.
Make all wiring connections
using copper conductors only,
and in accordance with the
National Electrical Code and
local regulations. See Fig. 4 for
terminal identifications and
contact action.
Note
: Use the terminal screws
furnished (8-32 x 1/4 in. binder
head). Substitution of other
screws may cause problems in
making proper connections.
Adjustments (See Fig. 5)
Set the cut-in point by turning
knob “A” to the desired setting.
Rotate pointer “B” to the desired
cutout setting (differential
adjustment).
Checkout Procedure
Before leaving the installation,
observe at least three complete
operating cycles to be sure that
all components are functioning
correctly.
Repairs and Replacement
Field repairs must not be made.
For a replacement control,
contact the nearest Johnson
Controls distributor.
Controls Group
507 E. Michigan Street
P.O. Box 423
Printed in U.S.A.
Milwaukee, WI 53202