Titus Pneumatic Controls IOM - Manual (Page 7)

(0-25 PSI)
(FIELD ADJUSTERS HAVE KNOBS)
WITH 5/64" HEX ALLEN WRENCH
ALL ADJUSTMENTS CCW TO INCREASE
MAIN AIR (20-25 PSI)
(SUPPLIED IN NO POSITION)
CHANGE DAMPER ACTION
LOOSEN SCREW TO
(0-25 PSI)
GAUGE
MAGNAHELIC SENSOR
(0-20" WG)
GAUGE
ACTUATOR
H L
HI LO
NO
DAMPER
BLUE
YELL
OW
M
B
H
GREEN
RED
R
G
N I C
NC
L
R I
RESET SPAN
NC
HI STAT P
RESET START
LO STAT P
T
Bulb
Squeeze
Gauge
WHITE
PNEU-IOM-7.0 5-2-05
Reset Start Point Instructions for the TITUS IIA Controller
Setup Procedure
1. Confirm the setting on the
Thermostat adjustment Switch for
TITUS IIA controls.
2. Confirm the setting on the Damper
Switch.
3. Disconnect the red HI and green LO
lines from the controller.
4. Detach the white thermostat line
from Port T on the controller. Attach
a squeeze bulb with 0 to 25 PSI
gauge to Port T.
5. Remove the yellow motor line from
Port B on the controller. Attach a 0
to 25 PSI gauge to Port B.
To Adjust the Start Point
Direct-Acting Thermostats:
1. Apply zero PSI to thermostat
Port T.
2. Adjust the LO knob on the face of
the controller until the gauge on
Port B reads:
2 PSI for normally closed terminals
[or]
15 PSI for normally open terminals.
3. Use the Squeeze-Bulb to set the
thermostat pressure to 8 PSI or
(whatever PSI the desired setpoint
should be).
4. Adjust the Reset-Start-Point knob
until the gauge on Port B reads:
(Note 1)
4-5 PSI for normally open terminals
[or]
10-11 PSI for normally closed terminals.
5. SEE NOTE 2
Reverse-Acting Thermostats:
1. Apply 15 PSI to thermostat Port T.
2. Adjust the LO knob on the face of
the controller until the gauge on
Port B reads:
2 PSI for normally closed terminals
[or]
15 PSI for normally open terminals.
3. Use the Squeeze-Bulb to set
thermostat to desired start-point
PSI.
4. Adjust the Reset-Start-Point knob
until the gauge on Port B reads:
(Note 1)
10-11PSI for normally open terminals
[or]
4-5 PSI for normally closed terminals.
5. SEE NOTE 2.
NOTE 1: Pressures shown are for
5-10 PSI actuators. For other
spring ranges adjust readings
accordingly.
NOTE 2: Reconnect Red-Green-
Yellow-White tubes to their
proper control terminals.
Recalibrate Min./Max CFM
settings
in accordance with
procedures shown in the proper
Installation Manual.
Figure 9. Titus II Controller