Carrier SYSTXCCNIM01 User Manual
HEATING & COOUNG
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Installation and Start-Up Instructions
Network Interface Module
SYSTXCCNIM01
A03231
NOTE: Read the entire instruction manual before starting the
installation.
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TABLE OF CONTENTS
SAFETY CONSIDERATIONS ..................................................... l
INTRODUCTION .......................................................................... 1
INSTALLATION ........................................................................... 1
Check Equipment and Job Site ........................................... 1
Component Location and Wiring Considerations .............. 1
Install Components .............................................................. 2
Ventilator (HRViERV) Wiring ........................................... 2
Dual Fuel with 1-Speed Heat Pump Wiring ...................... 2
Infinity Indoor Units with 2-Speed Outdoor Unit Wiring.2
SYSTEM START-UP .................................................................... 2
LED INDICATORS ....................................................................... 2
FUSE .............................................................................................. 2
24 VAC POWER SOURCE .......................................................... 2
SAFETY CONSIDERATIONS
Read and follow manufacturer instructions carefully. Follow all
local electrical codes during installation. All wiring must conform
to local and national electrical codes, hnproper wiring or installa-
tion may damage Infinity Control System. Recognize safety
intbrmation. This is the safety-alert symbol z_X•When you see this
symbol on the equipment and in the instruction manual, be alert to
the potential for personal injury. Understand the signal words
DANGER, WARNING, and CAI TION. 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 a hazard, which could result in personal
injury or death. CAUTION is used to identify unsafe practices,
which would result in minor personal injury or product and
SYSTXCCNIM01
Infinity Network Interface Module
property damage. NOTE is used to highlight suggestions which
will result in enhanced installation, reliability, or operation.
INTRODUCTION
The Network Interface Module (RIM) is used to interface the
following devices to the Infinity ABCD bus so they can be
controlled by the Infinity System. The following devices do not
have communication ability and the RIM is required to control:
A Heat Recovery Ventilator Energy Recovery Ventilator
(HRV_RV) (when zoning is not applied).
A non-communicating single-speed heat pump with Infinity
furnace (dual fuel application only).
A non-conmmnicating two-speed outdoor unit (R-22 Series-A
unit).
INSTALLATION
Step l--Check Equipment and Job Site
INSPECT EQI IPMENT File claim with shipping company,
prior to installation, if shipment is damaged or incomplete.
Step 2--Component Location and Wiring Consider-
ations
D.!"tU!_at HI_
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or possible equipment damage.
Disconnect power before beginning installation.
NOTE: All wiring nmst comply with national, local, and state
codes.
LOCATING NETWORK INTERFACE MODULE (RIM)
Select a location near the Infinity furnace or fan coil where
wiring from equipment can come together easily.
NOTE: Do not mount RIM in outdoor unit. The RIM is
approved for indoor use only and should never be installed with
any of its components exposed to the elements.
The RIM may be installed in any area where temperature remains
between 32 ° and 158 ° F, and there is no condensation. Remember
that wiring access is likely the most important consideration.
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ELECTRICAL OPERATION HAZARD
Failure to follow this caution will result in equipment damage
or improper operation.
To prevent possible damage to RIM, do not mount on
plenum, duct work, or flush against furnace.
WIRING CONSIDERATIONS Ordinary themmstat wire _s
ideal when wiring the Infinity System (shielded cable is not
necessary). Use 18 - 22 AWG or larger for typical installations.
Lengths over i00 ft. should use 18 AWG or larger wire. Cut offor
fold back and tape any unneeded conductors. Plan the routing of
wiring early to avoid possible problems later.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
_m PC 101 Catalog No. 809-50015 Printed in USA Form Nih4Ol-lSl Pg 1 02-04 Replaces: NEW
isc
NOTE: ABCD bus wiring only requires a four-wire connection;
however, it is good practice to run thermostat cable having more
than four wires in the event of a damaged or broken wire during
installation.
The following color-code is recommended for each ABCD bus
connection:
A Green Data A
B Yellow Data B
C White 24VAC (Common)
D Red 24VAC (Hot)
It is not mandatory that the above color code be used, but each
ABCD connector in the system MUST be wired consistently.
NOTE: Improper wiring of the ABCD connector will cause the
Infinity System to operate improperly. Check to make sure all
wiring is correct before proceeding with installation or turning on
power.
Step 3-- Install Components
INSTALL NET_VORK INTERFACE MODULE Plan wire
routing before mounting. The Infinity Network Interface Module is
designed so that wires can enter it from the sides.
i. Remove top cover and mount NIM to wall using screws and
wall anchors provided.
Step 4---Ventilator (HRV/ERV) Wiring
HRV / ERV INSTALLATION" The NIM can control a Carrier
Heat Recovery Ventilator Energy Recovery Ventilator (HRV .
ERV). Connect four wires from ventilator control board (see
ventilator installation instructions for details) to connector labeled
(YRGB). This label identifies the color of the wire to match the
ventilator wire colors (Y yellow, R red, G green, B blue or
black). See Fig. 2 for ventilator (HRV / ERV) connection.
NOTE: If system is zoned (contains an Infinity Damper Control
Module), the ventilator may be connected either directly to the
Damper Control module or to the NIM. In either case, the Infinity
Zone Control wi!l properly discover the ventilator.
Step 5--Dual Fuel with l-Speed Heat Pump Wiring
DUAL FIEL INSTALLATION _VITH 1-SPEED HEAT
PUMP The NIM is needed when an Infinity variable-speed
furuace is applied with a Can'ier single-speed (non-
conmmnicating) heat pump. See Fig. 3 for wiring details. An
outdoor air temperature sensor MUST be connected to litrnace
control board for proper operation (see Fig. 5 for details).
Step 6--Infinity Indoor Unit with 2-Speed Outdoor Unit
Wiring
2-SPEED NON-COMMINICATING OITDOOR [NIT
The NIM can control a 2-speed non-comnmnicating air condi-
tioner or heat pump (R-22 Series-A unit) with an Infinity indoor
unit. See Fig. 4 for wiring details.
SYSTEM START-UP
Follow the system start-up process outlined in the Infinity Zone
Control or Infinity Control installation instructions.
LED INDICATORS
Under normal operation, the Yellow and Green LEDs will be on
continuously (solid). If the NIM does not successlidly communi-
cate with the Infinity Control, the Green LED will not be on. If
there are fimlts present, the Yellow LED indicator will blink a
two-digit status code. The first digit will blink at a fast rate, the
second at a slow rate.
STATUS CODE DESCRIPTION
16 = Communication Failure
45 = Board Failure
46 = Low Input Voltage
FUSE
A 3-amp automotive type fuse is used to protect the NIM fl:om
overloading the outdoor unit R output. If this litse flails, there is
likely a short in the wiring to the device being controlled by the
NIM. After short in wiring is fixed, fuse should be replaced with
an identical 3 amp automotive fi_se.
24 VAC POWER SOURCE
The NIM receives its 24 VAC power from the indoor unit C and
D temfinals (via ABCD connector bus). In most applications, there
is sufficient power (VA capacity) available from the indoor unit
transformer to accommodate a ventilator and / or outdoor unit
connection. No additional transformer is required.
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