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SP970A, B, C AND D MANUAL AND MINIMUM POSITION PRESSURE REGULATORS
BEFORE INSTALLATION
SP970A and C only
For panels having a thickness greater than 5/16 in.
(8 mm) but less than one in. (25 mm), use 315677A Bus
Assembly.
INSTALLATION
Mounting
The SP970A and C can be panel, surface or wall
mounted. The SP970B and D are surface or wall
mounted. See Fig. 3 and 4.
0
20
40
60
80
100
5/8 IN. (16MM)
DIA. HOLE
SCALEPLATE
SHAFT
SP97O
HEX NUT
CENTER
PUNCH
MARK
IN "V"
GROOVE
PANEL-UP TO 5/16 IN.
(8MM) THICK
HEX NUT
KNOB
CENTER PUNCH MARK IN "V" GROOVE
SHOWING 8 PSI (55 kPa) CALIBRATION -
ENLARGED
8 PSI
C8278
Fig. 3. SP970A and C panel mounting.
SP970A AND C
SP970B AND D
SP970 SWITCH
MOUNTED
HERE
SPRING
CLIP
SCREW
C8275
C8277
0
80
60
40
20
100
Fig. 4. SP970 surface or wall mounting.
Panel Mounting SP970A and SP970C
1. Drill a 5/8 in. (16 mm) hole.
2. Lock the SP970 switch and scaleplate to the panel
with a hex nut on the back of the panel. Use a sec-
ond hex nut on the front panel. See Fig. 3.
NOTES:
√ The scaleplate, knob and two mounting nuts
are furnished with SP970A and C.
√ Do not mount the knob during installation.
Refer to the Calibration section of this docu-
ment.
Surface Mounting
Use the mounting bracket as a template and secure
mounting bracket to surface. See Fig. 4. Screws are not
provided.
Piping
All connections are sharp barb 5/32 in. (4 mm) O.D.
polyethylene tubing.
CAUTION
Equipment Damage Hazard.
To prevent damage to the sharp barb
connections, do not attempt to cut or pull tubing.
To remove the tubing from the barb connections,
cut tubing a few inches from the control device.
Use a coupling to reconnect tubing.
NOTES: When the system is not copper or polyethylene
tubing, adapt as shown in Fig.5. Some models
provide parts for adapting.
5/32 IN. (4 MM) O.D.
PLASTIC TUBING
5/32 IN. (4 MM)
O.D. PLASTIC
TUBING CUT
TO LENGTH
5/32 IN. X 1/4 IN.
(4 MM X 6 MM)
O.D. PLASTIC
CONNECTOR
(CCTI606B)
CONNECT
1/4 IN.
1/4 IN. (6 MM)
(6 MM)
O.D. PLASTIC
COPPER
TUBING CUT TO
LENGTH
1/4 IN. (4 MM) O.D.
PLASTIC/COPPER
ADAPTER
(CCTI633BT)
1/4 IN. (6 MM) O.D.
COPPER TUBING
C8276
Fig. 5. Adaptation piping.
Port Identification Table
The two right columns in Table 1 identifies the ports of
older Honeywell pneumatic relays when upgrading
installation.
SP970A-D
POST FOR
CONNECT
1/4 IN.
(6 MM)
PLASTIC
95-7237EF 2