Titus Analog T3SQ-1 IOM - Manual (Page 3)

T3SQ-1-IOM-3.0 6-6-09
Master Controller / Thermostat Operation
When power is supplied to the diffusers and the controller / thermostat, the
controller / thermostat will drive the diffusers to full closed to calibrate the
movement of the master and drone units. During this startup operation the
controller / thermostat will display “ST”.
The controller / thermostat normally displays room temperature.
The Cool and Heat indicator lights show the mode of operation that the unit
is in. If the zone is above setpoint, the Cool indicator will be lit to show that
the zone requires more cooling. If the zone is below setpoint, the Heat
indicator will be lit to show that the zone requires more heating.
To adjust the setpoint adjustment press either button. An audible sound will
let you know the button was pressed. The current setpoint value will flash
on the display. Default setpoint is 71º F (22º C). Press the up or down
arrow buttons to increase or decrease the setpoint. The setpoint
adjustment function will exit after 5 seconds of no user input.
To drive the damper full open or full closed, you must put the controller /
thermostat into override mode. Override mode should be used for
commissioning. Press the down arrow for 5 seconds until display will read
“LI” to indicate the override mode.
Pressing the up arrow will drive the damper to the closed position. Pressing
the down arrow will drive the damper to the open position. Pressing both
buttons simultaneously will take the unit out of override mode.
Press the up arrow on the controller / thermostat for 5 seconds to display
supply air temperature. A display of “00” denotes that a changeover sensor
is not being used. The display will revert back to zone temperature after 5
seconds.
Optional Inlet Heater Operation
The optional SCR controlled inlet electric heater is mounted in the neck of
the T
3
SQ-1 diffuser. (Line voltage must be supplied to the electric heaters.)
If the inlet heater is used with the T
3
SQ-1, all wiring should be connected
through the wiring interface board on the heater assembly instead of the
wiring interface board on the diffuser backpan. The wiring interface board
on the diffuser may be discarded or ignored. The power wiring to the heater
has to be connected by removing the face from the wiring interface board
enclosure per Figure 7. The wires must be routed through the grommets,
connected to L & N, and then re-attach the face of the enclosure.
The controller / thermostat will energize the inlet heater when the zone
temperature is 1
o F below setpoint. The SCR heater controller will modulate
a time pulsed signal from minimum output to full output over a 2
o
F
temperature range. At 3 o F over setpoint the heater will be at full output.
An airflow switch and two thermal cutouts protect the heater from operation
without airflow or at temperatures above 200
o
F.
Figure 5. Master Controller / Thermostat
Figure 6. Optional Inlet Heater
Figure 7. Optional Inlet Heater Wiring