Local Equipment Network; Board Addresses; Control Module Communication; Red Led - Carrier AQUASNAP 30RB060-390 Controls, Start-Up, Operation, Service And Troubleshooting Instructions

Table 11 — Energy Management Module Heat Reclaim (EMM HR) Inputs and Outputs
INPUT DESCRIPTION
PD.B Circuit B Pumpdown Pressure Transducer
PD.A Circuit A Pumpdown Pressure Transducer
HRS.B Circuit B Liquid Subcooling
HRS.A Circuit A Liquid Subcooling
HRT.B Circuit B Liquid Temperature
HRT.A Circuit A Liquid Temperature
HEWT Heat Reclaim Entering Fluid
HLWT Heat Reclaim Leaving Fluid
C.FLO Condenser Flow Switch Status
— Power (24 vac supply)
—

Local Equipment Network

OUTPUT DESCRIPTION
Condenser 0-10 VDC Water Valve Output
CND.P Heat Reclaim Condenser Pump Status
CN.HT Heat Reclaim Condenser Heater
HR2.A Circuit A, Leaving Air-Cooled Cond Solenoid
HR2.B Circuit B, Leaving Air-Cooled Cond Solenoid
HR3.A Circuit A, Entering Water-Cooled Cond Solenoid
HR3.B Circuit B, Entering Water-Cooled Cond Solenoid
HR4.A Circuit A, Leaving Water-Cooled Cond Solenoid
HR4.B Circuit B, Leaving Water-Cooled Cond Solenoid
HR1.A Circuit A, Entering Air-Cooled Cond Solenoid
HR1.B Circuit B, Entering Air-Cooled Cond Solenoid
Local Equipment Network —
mitted between modules via a 3-wire communication bus or
LEN (Local Equipment Network). External connection to the
LEN bus is made at TB3.
All boards (except the main base
Board Addresses —
board and the energy management module) have 8-position
DIP switches. Addresses for all boards are listed with the input/
output tables for each board.

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 blink in unison, verify that correct power
is being supplied to all modules. Be sure that the main base
board (MBB) is supplied with the current software. If neces-
sary, reload current software. If the problem still persists,
replace the MBB. A red LED that is lit continuously or blink-
ing at a rate of once per second or faster indicates that the board
should be replaced.
GREEN LED — All boards have a green LEN (SIO) LED
which should be blinking whenever power is on. If the LEDs
are not blinking as described check LEN connections for
potential communication errors at the board connectors. See
Input/Output Tables for LEN connector designations. A 3-wire
bus accomplishes communication between modules. These
Pressure Transducer
Pressure Transducer
Temperature
Temperature
Temperature
Temperature
0-10 VDC
Information is trans-
Fig. 11 — ComfortLink™ CCN Communication Wiring
I/O TYPE I/O POINT NAME
PRESSURE
PRESSURE
— TEMPERATURE
— TEMPERATURE
TEMPERATURE
TEMPERATURE
TEMPERATURE
TEMPERATURE

Switch INPUTS
—
—
I/O TYPE I/O POINT NAME
Contactor OUTPUTS
Contactor OUTPUTS
Contactor OUTPUTS
Contactor OUTPUTS
Contactor OUTPUTS
Contactor OUTPUTS
Contactor OUTPUTS
Contactor OUTPUTS
Contactor OUTPUTS
Contactor OUTPUTS
3 wires run in parallel from module to module. The J9A con-
nector on the MBB provides communication directly to the
scrolling marquee display or the Navigator™ display module.
YELLOW LED — The MBB has one yellow LED. The

Carrier Comfort Network

of network communication.
Carrier Comfort Network (CCN) Interface —
30RB units can be connected to the CCN, if desired. The com-
munication bus wiring is a shielded, 3-conductor cable with
drain wire and is field supplied and installed. The system ele-
ments are connected to the communication bus in a daisy chain
arrangement. The positive pin of each system element commu-
nication connector must be wired to the positive pins of the
system elements on either side of it, that is also required for the
negative and signal ground pins of each system element. Wir-
ing connections for CCN should be made at TB3. Consult the
CCN Contractor's Manual for further information. See Fig. 11.
NOTE: Conductors and drain wire must be 20 AWG (Ameri-
can 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 12 for recommended wire
manufacturers and part numbers.
16
CONNECTION POINT
 
CIR.B PD.B EMM-J8-CH6
 
CIR.A PD.A EMM-J8-CH5
 
CIR.B HRS.B
 
CIR.A HRS.A
 
CIR.B HRT.B EMM-J5-CH4
 
CIR.A HRT.A EMM-J5-CH3
 
UNIT HEWT EMM-J5-CH2
 
UNIT HLWT EMM-J5-CH1

GEN.I C.FLO EMM-J5-CH15
— EMM-J1-CH11,12
— EMM-J9
CONNECTION POINT
— EMM-J8-CH7
 
GEN.O CND.P EMM-J2-CH16
 
GEN.O CN.HT EMM-J2-CH17
 
CIR.A HR2.A EMM-J2-CH18
 
CIR.B HR2.B EMM-J2-CH19
 
CIR.A HR3.A EMM-J2-CH20
 
CIR.B HR3.B EMM-J2-CH21
 
CIR.A HR4.A EMM-J2-CH22
 
CIR.B HR4.B EMM-J2-CH23
 
CIR.A HR1.A EMM-J3-CH24
 
CIR.B HR1.B EMM-J3-CH25
® (CCN) LED will blink during times
—
—
All