Local Equipment Network; Board Addresses; Control Module Communication; Carrier Comfort Network - Carrier AquaForce 30XV140 Controls, Start-Up, Operation, Service And Troubleshooting Instructions

Variable speed air-cooled liquid chillers with greenspeed intelligence and touch pilot controls
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IN/OUT
CHANNEL
TYPE
CH 01
AI
CH 02
AI
CH 03
AI
CH 04
AI
CH 05
AI
CH 06
AI
CH 07
AO
CH 08
DI
CH 09
DI
CH 10
DI
CH 11a
DI
CH 11b
DI
CH 12
DI
CH 13
DI
CH 14
DI
CH 15
DI
CH 16
DO
CH 17
DO
CH 18
DO
CH 19
DO
CH 20
DO
CH 21
DO
CH 22
DO
CH 23
DO
CH 24
DO
CH 25
DO
Local Equipment Network —
mitted between modules via a 3-wire communication bus or
LEN (Local Equipment Network).
All boards (except the Touch Pilot
Board Addresses —
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.
Table 10 — EMM Board Inputs and Outputs
BOARD
CCN POINT
CONNECTOR
SPACETMP
J6
J7A
SP_RESET
J7B
LIM_ANAL
J8
CAP_T
J4, CH8
OCC_OVSW
J4, CH9
LIM_SW2
J4, CH10
REM_LOCK
J4, CH11A
ICE_SW
J4, CH11B
J5, CH12
J5, CH13
J5, CH14
J5, CH15
J2A
CP_A
J2A
CP_B
J2A
J2A
J2B
J2B
J2B
J2B
J3
SHUTDOWN
J3
ALERT
Information is trans-
POINT
DESCRIPTION
Space temperature
Setpoint reset
Capacity limit
% Total capacity running
Occupancy override
Demand limit SW2
Remote lockout switch
Ice done
Compressor A run status
Compressor B run status
Shutdown relay
Alert relay

Carrier Comfort Network

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
MANUFACTURER
Alpha
American
Belden
Columbia
Manhattan
Quabik
*Teflon is a registered trademark of DuPont.
16
I/O POINT
INPUT/OUTPUT
NAME
TYPE
AI-01
5/10K Thermistor
AI-02
10K Thermistor
AI-03
5/10K Thermistor
AI-04
5/10K Thermistor
AI-06
0-5V
AI-07
0-5V
AO-01
0-10VdC
DI-01
DI-02
DI-03
DI-04
DI-05
DI-06
DI-07
DI-08
DI-09
DO-01
Triac
DO-02
Triac
DO-09
Relay
DO-10
Relay
®
(CCN) Interface —
PART NUMBER
Regular Wiring
Plenum Wiring
1895
A21451
A48301
8205
884421
D6451
M13402
M64430
6130

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