16
Table 10 — EMM Board Inputs and Outputs
Local Equipment Network — Information is trans-
mitted between modules via a 3-wire communication bus or
LEN (Local Equipment Network).
Board Addresses — All boards (except the Touch Pilot
display and the Energy Management Module board) have DIP
switches to set the address.
Control Module Communication
RED LED — Proper operation of the control boards can be
visually checked by looking at the red status LEDs (light-
emitting diodes). When operating correctly, the red status
LEDs will blink in unison at a rate of once every 2 seconds.
If the red LEDs are not blinking in unison, verify that cor-
rect power is being supplied to all modules and that all com-
munication wiring is connected securely. Be sure that the
Touch Pilot
™
module is supplied with the current software.
If necessary, reload current software. If the problem still
persists, replace the Touch Pilot module. A red LED that is
lit continuously or blinking at a rate of once per second or
faster indicates that the board should be replaced.
GREEN LED — All boards have a green LEN (Local
Equipment Network) LED which should be blinking when-
ever power is on. If the LEDs are not blinking as described
check LEN connections for potential communication errors
at the board connectors. A 3-wire bus accomplishes com-
munication between modules. These 3 wires run in parallel
from module to module. They connect to J9 on EMM and
AUX boards, and to J12 or J13 on SIOB boards. A valid
unit configuration must be in the Touch Pilot module for
proper LEN communication.
Carrier Comfort Network
®
(CCN) Interface —
All 30XV units can be connected to the CCN, if desired. The
communication bus wiring is a shielded, 3-conductor cable
with drain wire and is field supplied and installed. The system
elements are connected to the communication bus in a daisy
chain arrangement. The positive pin of each system element
communication connector must be wired to the positive pins of
the system elements on either side of it. The negative and sig-
nal ground pins of each system element must also be wired in
the same manner. Wiring connections for CCN should be made
at TB3. Consult the CCN Contractor’s Manual for further in-
formation. See Fig. 19.
NOTE: Conductors and drain wire must be 20 AWG
(American Wire Gage) minimum stranded, tinned copper.
Individual conductors must be insulated with PVC, PVC/
nylon, vinyl, Teflon*, or polyethylene. An aluminum/
polyester 100% foil shield and an outer jacket of PVC,
PVC/nylon, chrome vinyl, or Teflon with a minimum
operating temperature range of –20 C to 60 C is required.
See Table 11 for recommended wire manufacturers and
part numbers.
Table 11 — CCN Communication Bus Wiring
CHANNEL
IN/OUT
TYPE
BOARD
CONNECTOR
CCN POINT
POINT
DESCRIPTION
I/O POINT
NAME
INPUT/OUTPUT
TYPE
CH 01 AI
J6
— — AI-01 5/10K Thermistor
CH 02 AI SPACETMP Space temperature AI-02 10K Thermistor
CH 03 AI — — AI-03 5/10K Thermistor
CH 04 AI — — AI-04 5/10K Thermistor
CH 05 AI J7A SP_RESET Setpoint reset AI-06 0-5V
CH 06 AI J7B LIM_ANAL Capacity limit AI-07 0-5V
CH 07 AO J8 CAP_T % Total capacity running AO-01 0-10VdC
CH 08 DI J4, CH8 OCC_OVSW Occupancy override DI-01 —
CH 09 DI J4, CH9 LIM_SW2 Demand limit SW2 DI-02 —
CH 10 DI J4, CH10 REM_LOCK Remote lockout switch DI-03 —
CH 11a DI J4, CH11A ICE_SW Ice done DI-04 —
CH 11b DI J4, CH11B — — DI-05 —
CH 12 DI J5, CH12 — — DI-06 —
CH 13 DI J5, CH13 — — DI-07 —
CH 14 DI J5, CH14 — — DI-08 —
CH 15 DI J5, CH15 — — DI-09 —
CH 16 DO J2A CP_A Compressor A run status DO-01 Triac
CH 17 DO J2A CP_B Compressor B run status DO-02 Triac
CH 18 DO J2A — — — —
CH 19 DO J2A — — — —
CH 20 DO J2B — — — —
CH 21 DO J2B — — — —
CH 22 DO J2B — — — —
CH 23 DO J2B — — — —
CH 24 DO J3 SHUTDOWN Shutdown relay DO-09 Relay
CH 25 DO J3 ALERT Alert relay DO-10 Relay
MANUFACTURER
PART NUMBER
Regular Wiring Plenum Wiring
Alpha 1895 —
American A21451 A48301
Belden 8205 884421
Columbia D6451 —
Manhattan M13402 M64430
Quabik 6130 —
*Teflon is a registered trademark of DuPont.
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