Step 2—Install Smart Sensor
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Before installing sensor, turn off all power to unit. There may
be more than 1 power disconnect.
1. Turn OFF all power to unit.
2. If an existing thermostat or sensor is being replaced:
a. Remove existing device from wall.
b. Disconnect wires from existing device, 1 at a time. Be
careful not to allow wires to fall back into wall.
c. Discard or recycle old device.
d. If 4 wires exist in wall, they may be used. If not, plan and
route wiring to connect with either the Damper Control
Module, or User Interface. Multiple Smart Sensors may be
daisy chained together, but somewhere chain must connect
to either Damper Control Module or User Interface. (Smart
Sensor daisy chain wire limit is 100 ft.)
Recommended connection is:
A - Green = Data A
B - Yellow = Data B
C - White = 24vac (com)
D - Red = 24vac (hot)
NOTE:
It is not mandatory that the above color code be used, but
each ABCD connection in the system MUST be wired consis-
tently.
3. To mount Smart Sensor, remove rear mounting base. Route
wires through hole in mounting base and level base against
wall.
4. Mark wall through 2 mounting holes and drill two 3/16-in.
holes. Secure assembly to wall with 2 anchors and screws
provided, making sure all wires properly extend through
opening.
5. Adjust length and routing of thermostat wire to reach each
terminal entry on the connector. Strip 1/4-in. of insulation
from each wire and properly connect to A-B-C-D.
6. Push any excess wire into the wall. Seal hole in wall to prevent
any air leaks. Leaks can affect Smart Sensor operation.
7. Attach Infinity™ Smart Sensor to the mounting base by lining
up the plastic guides and gently snapping assembly together.
ELECTRICAL OPERATION HAZARD
Failure to follow this caution may result in equipment damage
or improper operation.
Improper wiring or installation may damage the Smart
Sensor. Check to make sure wiring is correct before proceed-
ing with installation or turning on unit.
Step 3—Setup and Checkout
NEW SMART SENSOR SETUP
Upon initial power up, the Smart Sensor will need to be properly
addressed. The ZONE icon will be displayed and default zone
number
″
2
″
will be shown in the temperature display. The word
SETUP will also appear in the lower left text area. Use the TEMP
(+/-) button to select the correct zone address number 1 through 8.
If only one Damper Control Module exists, the zone address
selection will only be 1 through 4. Once the zone number is
selected, press the FAN button to store the zone address and exit
the setup menu. The Smart Sensor is ready to operate.
CHANGING ZONE ADDRESS
To change an existing zone address; enter the setup menu by
pressing the FAN button for 10 seconds until the ZONE icon is
displayed. Use the TEMP (+/-) button to select the correct zone
address and then press the FAN button once to automatically save
and exit the setup menu. If no buttons are pressed for approxi-
mately 3 minutes, the screen will automatically save and exit back
to a normal display.
NOTE:
If the Zone Control (User Interface) is configured for
non-programmable operation, the Smart Sensor will ignore HOLD
and Override functions at the Smart Sensor.
BACKLIGHTING
The LCD backlighting will energize whenever a button is pressed.
The backlighting will de-energize after 10 seconds of no push
button or activity. To enable constant backlighting, press the FAN
button for 10 seconds to enter setup menu. Use the HOLD button
to toggle between
″
LIGHT OFF
″
and
″
LIGHT ON
″
which will
enable a fixed low intensity backlight. Press the FAN button to
save all settings and exit the setup menu.
FAN BUTTON
Pressing the FAN button momentarily will scroll through: AUTO,
LOW, MED, and HIGH speed continuous fan operation. Also, the
FAN button is used to enter into the setup mode by holding the
FAN button for 10 seconds.
HUMIDITY/OAT BUTTON
Pressing the HUMIDITY/OAT button will toggle between the
Outside Temperature and Indoor Relative Humidity reading (hu-
midity reading at User Interface). The LCD will revert back to the
outside temperature after 5 seconds.
COOL/HEAT BUTTON
Use the COOL/HEAT button to change between
″
COOL AT
″
and
″
HEAT AT
″
setpoints.
TEMPERATURE UP/DOWN BUTTON
Use the TEMP (+/-) button to change and select a zone tempera-
ture setpoint. Changing the setpoint will cause the Override timer
to be displayed (i.e. 2-hours). This can either be increased or
decreased by using the TIME (+/-) button. In addition, if the active
mode is heating; the
″
HEAT AT
″
icon will appear, or likewise
″
COOL AT
″
icon will appear, depending on the mode setting at
the Zone Control (User Interface).
TIME UP/DOWN BUTTON
When the TIME (+/-) button is pressed during a normal operation,
the
″
OVERRIDE
″
icon is displayed and the timer is shown
(default is 2-hours). The program will continue to hold the
currently displayed setpoint for that amount of time. While the
timer is shown, the TIME buttons can be used to raise or lower the
Override timer in 15-minute increments up to a maximum of 24
hours. If the time is decreased to zero, the Override text disappears
along with the timer and the program resumes regular operation.
HOLD/UNOCCUPIED BUTTON
Pressing the HOLD button momentarily will display the
″
HOLD
″
icon and the system will continue using the active (displayed)
temperature setpoints indefinitely. Pressing the HOLD button
again removes the
″
HOLD
″
icon and the system resumes normal
programming schedules.
Pressing the HOLD button for approximately 3 seconds activates
the
″
UNOCCUPIED
″
icon. This will be displayed in the lower left
area of the LCD and the unoccupied temperature settings will be
2
