Johnson Controls C-9500 Quick Start Manual page 2

Installation
The C-9500 is designed for
direct mounting to the actuator
(it is simply hand tightened on)
and features a 1/8 in. NPT
output connection and a 1/8 in.
NPT barbed fitting for 5/32 or
1/4 in. O.D. polytubing. Only
one actuator can be controlled
by each C-9500.
For applications where the
output from the C-9500 is
connected to a low capacity
device (for example a C-5226 or
a P-7100), the maximum line
length must not exceed the
following:
5 ft (152 cm) for 5/32 in.
O.D. polytubing
3 ft (91 cm) for 1/4 in. O.D.
polytubing
Calibration (See Fig. 3)
When making field adjustments,
the set point must be adjusted
before the differential. Changes
to the set point will affect the
differential; however, the
differential may be adjusted
without affecting the set point.
Set Point Adjustment
1. Remove the bottom cap
from the cumulator body.
2. Using a screwdriver, rotate
the spring adjusting screw
clockwise to decrease or
counterclockwise to increase
the set point. One full turn of
the screw in either direction
will provide approximately a
2 PSI (14 kPa) change in the
set point.
3. In order to check the set
point, the output must be
dead-ended. With the bottom
cap opening blocked and an
X-200-140 Hypodermic
Needle Test Probe (ordered
separately) inserted in the test
point, determine and reset the
C-9500 to the desired set
point. When the desired set
point is obtained, replace the
bottom cap.
2 C-9500 Product Bulletin