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Table 11 — Energy Management Module Heat Reclaim (EMM HR) Inputs and Outputs
Local Equipment Network —
Information is trans-
mitted between modules via a 3-wire communication bus or
LEN (Local Equipment Network). External connection to the
LEN bus is made at TB3.
Board Addresses —
All boards (except the main base
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
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
®
(CCN) LED will blink during times
of network communication.
Carrier Comfort Network (CCN) Interface —
All
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.
INPUT
DESCRIPTION
I/O TYPE
I/O POINT NAME
CONNECTION POINT
PD.B
Circuit B Pumpdown Pressure Transducer
Pressure Transducer
PRESSURE
CIR.B
PD.B
EMM-J8-CH6
PD.A
Circuit A Pumpdown Pressure Transducer
Pressure Transducer
PRESSURE
CIR.A
PD.A
EMM-J8-CH5
HRS.B
Circuit B Liquid Subcooling
—
TEMPERATURE
CIR.B
HRS.B
—
HRS.A
Circuit A Liquid Subcooling
—
TEMPERATURE
CIR.A
HRS.A
—
HRT.B
Circuit B Liquid Temperature
Temperature
TEMPERATURE
CIR.B
HRT.B
EMM-J5-CH4
HRT.A
Circuit A Liquid Temperature
Temperature
TEMPERATURE
CIR.A
HRT.A
EMM-J5-CH3
HEWT
Heat Reclaim Entering Fluid
Temperature
TEMPERATURE
UNIT
HEWT
EMM-J5-CH2
HLWT
Heat Reclaim Leaving Fluid
Temperature
TEMPERATURE
UNIT
HLWT
EMM-J5-CH1
C.FLO
Condenser Flow Switch Status
Switch
INPUTS
GEN.I
C.FLO
EMM-J5-CH15
—
Power (24 vac supply)
—
—
EMM-J1-CH11,12
—
Local Equipment Network
—
—
EMM-J9
OUTPUT
DESCRIPTION
I/O TYPE
I/O POINT NAME
CONNECTION POINT
Condenser 0-10 VDC Water Valve Output
0-10 VDC
—
EMM-J8-CH7
CND.P
Heat Reclaim Condenser Pump Status
Contactor
OUTPUTS
GEN.O
CND.P
EMM-J2-CH16
CN.HT
Heat Reclaim Condenser Heater
Contactor
OUTPUTS
GEN.O
CN.HT
EMM-J2-CH17
HR2.A
Circuit A, Leaving Air-Cooled Cond Solenoid
Contactor
OUTPUTS
CIR.A
HR2.A
EMM-J2-CH18
HR2.B
Circuit B, Leaving Air-Cooled Cond Solenoid
Contactor
OUTPUTS
CIR.B
HR2.B
EMM-J2-CH19
HR3.A
Circuit A, Entering Water-Cooled Cond Solenoid
Contactor
OUTPUTS
CIR.A
HR3.A
EMM-J2-CH20
HR3.B
Circuit B, Entering Water-Cooled Cond Solenoid
Contactor
OUTPUTS
CIR.B
HR3.B
EMM-J2-CH21
HR4.A
Circuit A, Leaving Water-Cooled Cond Solenoid
Contactor
OUTPUTS
CIR.A
HR4.A
EMM-J2-CH22
HR4.B
Circuit B, Leaving Water-Cooled Cond Solenoid
Contactor
OUTPUTS
CIR.B
HR4.B
EMM-J2-CH23
HR1.A
Circuit A, Entering Air-Cooled Cond Solenoid
Contactor
OUTPUTS
CIR.A
HR1.A
EMM-J3-CH24
HR1.B
Circuit B, Entering Air-Cooled Cond Solenoid
Contactor
OUTPUTS
CIR.B
HR1.B
EMM-J3-CH25
Fig. 11 —
Comfort
Link™ CCN Communication Wiring
Summary of Contents for AQUASNAP 30RBA315
Page 77: ...77 Fig 37 Control Schematic 30RB060 080 a30 4619...
Page 78: ...78 Fig 38 Control Schematic 30RB090 150 a30 4620...
Page 79: ...79 Fig 39 Control Schematic 30RB160 190 a30 4622...
Page 80: ...80 Fig 40 Control Schematic 30RB210 300 a30 4622...
Page 81: ...81 Fig 41 Heat Reclaim Control Schematic a30 4622...