Carrier SYSTXCCSMS01-A Installation Instructions Manual

SYSTXCCSMS01---A
Infinity

r Smart Sensor for Zoning

Installation Instructions

NOTE: Read the entire instruction manual before starting the
installation.

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury or property
damage. Consult a qualified installer, service agency or your
distributor or branch for information or assistance. The qualified
installer or agency must use factory--authorized kits or accessories
when modifying this product. Refer to the individual instructions
packaged with the kits or accessories when installing.

Follow all safety codes. Wear safety glasses, protective clothing,
and work gloves. Have a fire extinguisher available. Read these
instructions thoroughly and follow all warnings and cautions
included in literature and attached to the unit. Consult local
building codes and the current edition of the National Electrical
Code (NEC) NFPA 70. In Canada, refer to the current editions of
the Canadian Electrical Code CSA C22.1.

Recognize safety information. When you see this symbol
the unit and in instructions or manuals, be alert to the potential for
personal injury. Understand the signal words DANGER,
WARNING,andCAUTION. These words are used with the
safety--alert symbol. DANGER identifies the most serious hazards,
which will result in severe personal injury or death. WARNING
signifies hazards, which could result in personal injury or death.
CAUTION is used to identify unsafe practices, which may result
in minor personal injury or product and property damage. NOTE
is used to highlight suggestions which will result in enhanced
installation, reliability, or operation.

on

INTRODUCTION

Carrier’s Infinityr Smart Sensors are optional replacements for
Remote Room Sensors used with Infinityr Zoning systems. It
provides a temperature display and buttons to adjust the desired
temperature within the zone. It also displays outdoor temperature
and indoor humidity. When used with an Infinityr Touch Control
wall control-- FAN, HOLD and HOLD UNTIL features are
available. When used with an Infinityr User Interface (UIZ) wall
control-- FAN, HOLD, OVERRIDE, UNOCCUPIED features are
available.

INSTALLATION CONSIDERATIONS

Any zone may use an Infinity Smart Sensor. The Infinity Smart
Sensor can be “home run” wired directly to the Damper Control
Module, or “daisy chained” from the wall control or another Smart
Sensor via 4--wire ABCD communication bus. Ordinary thermostat
wire is recommended; however, solid conductor, stranded, or
shielded wire may be used. Use 22 AWG or larger for normal
wiring applications. Continuous wire lengths over 100 ft. should
use 20 AWG or larger. Plan the connection of each Smart Sensor to
provide easiest wiring route.

NOTE: Whenever possible, it is suggested to always “home run”
wires back to the Damper Control Module for convenience of

troubleshooting. Using a “pig--tailed” connection, or a field
supplied terminal block may be helpful in achieving proper wire
termination at the Damper Control Module.

An Infinity Smart Sensor may now be used to control Zone 1. In
addition, a Remote Room Sensor may also be used in the same
zone. If a Remote Room Sensor is applied in the same zone, the
Remote Room Sensor has temperature priority over the Smart
Sensor.

HOLD

A04147

Fig. 1 -- Infinity Smart Sensor

SYSTXCCSMS01--A

INSTALLATION

Step 1 — Select Smart Sensor Location

Sensor should be mounted:

S Approximately 5 ft. (1.5m) from floor.
S Close to center of zone, preferably on inside partitioning wall.
S On section of wall without pipes or ductwork.
S Where wiring can be routed to it within wall. Avoid running

directly next to other AC power.

Sensor should NOT be mounted:

S Close to a window, on outside wall, or next to a door leading to

the outside.

S Exposed to direct light and heat from a lamp, sun, fireplace, or

other temperature radiating object which may cause a false
reading.

S Close to or in direct airflow from supply registers and return--air

grilles.

S In areas with poor air circulation, such as behind a door or in an

alcove.

S Do not run wires next to AC power lines.

Outside Temp /

Indoor Humidity

Fan Status

Humidity/OAT

Hold/Unoccupied

HOLD

Time (+/-)

Fig. 2 -- Smart Sensor Functions

Step 2 — Install Infinity Smart Sensor

!

WARNING

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 care-

ful 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,orUser Interface. MultipleInfinity Smart Sensors
may be daisy chained together, but somewhere chain must
connect to either Damper Control Module or the Infinity
Touch Control/Infinity User Interface wall control. (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 consistently.

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.

Fan Control

Room Tem perat ure

Set point

COOL / HEAT

Temp (+/-)

A04136

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.

!

CAUTION

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 proceeding with
installation or turning on unit.

Step 3 — Setup and Checkout

NEW INFINITY SMART SENSOR SETUP

Upon initial power up, the Infinity Smart Sensor will need to be
properly addressed. “ZONE” 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 Infinity 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 “ZONE” 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
approximately 3 minutes, the screen will automatically save and
exit back to a normal display.

To ensure that all changes are recognized by the main control,
perform the “Full Installation” function in the Installation &
Service Menu of the Infinity Touch Control after zone addresses
are changed.

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

2