Titus Pneumatic Controls IOM - Manual (Page 5)

0-25 PSI
GAUGE
L H
CONTROLLER
0-25 PSI
GAUGE
BULB
SQUEEZE
MAIN AIR (20-25 PSI)
ACTUATOR
BLUE M
WHITE
YELLOW
T
B
LO
SENSOR
HI
RESET
THERMOSTAT
POINT
START
COLD AIR
DA RA
HOT AIR
DA RA
HI
DAMPER
NO
NC
GREEN
LO
INCR
RED
PNEU-IOM-5.0 5-2-05
Reset Start Point Instructions for the TITUS II Controller
Setup Procedure
1. Confirm the setting on the
Thermostat adjustment Switch for
TITUS II 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)
4-5 PSI for normally open terminals
[or]
10-11 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 7. Titus II Controller