Integrated Control
INTEGRATED CONTROL
COMBUSTION |
|
AIR INDUCER |
|
CONNECTOR |
|
FLAME |
|
SENSE |
|
DIAGNOSTIC |
|
PUSH BUTTON |
|
| + |
DIP SWITCHES |
|
OUTDOOR AIR |
|
SENSOR |
|
TERMINALS | 7−SEGMENT |
| |
| DIAGNOSTIC LED |
DISCHARGE AIR |
|
SENSOR |
|
TERMINALS |
|
FACTORY TEST |
|
HEADER PINS. |
|
FACTORY USE ONLY. |
|
TB83 OUTDOOR |
|
TB84 INDOOR |
|
NEUTRAL
TERMINALS
IGNITOR
CONNECTOR
LINE VOLTAGE
TERMINALS
HUM
EAC
INDOOR
BLOWER
CONNECTOR
| W915 Y1 TO Y2 |
| W951 R TO O |
| W914 R TO DS |
W915 |
|
W951 | L − use only with |
W914 | |
| communicating T’stat and |
| non−communicating outdoor |
| unit. |
RS−BUS LINK (TB82, future use)
I+ = DATA HIGH CONNECTION
I − = DATA LOW CONNECTION
RS−BUS OUTDOOR (TB83)
R = 24VAC
I + = DATA HIGH CONNECTION
I − = DATA LOW CONNECTION
C = 24VAXC COMMON
RS−BUS INDOOR (TB84)
R = 24VAC
I + = DATA HIGH CONNECTION
I − = DATA LOW CONNECTION
C = 24VAXC COMMON
1/4" QUICK CONNECT TERMINALS
HUM = 120 VAC OUTPUT TO HUMIDIFIER XMFR = 120 VAC OUTPUT TO TRANSFORMER LI = 120 VAC INPUT TO CONTROL
CIRC = 120 VAC OUTPUT TO CIRCULATING BLOWER EAC = 120 VAC OUTPUT TO ELECTRICAL AIR CLEANER NEUTRALS = 120 VAC NEUTRAL
THERMOSTAT CONNECTIONS (TB1)
DS = DEHUMIDIFICATION SIGNAL
W2 = HEAT DEMAND FROM 2ND STAGE T/STAT
W1 = HEAT DEMAND FROM 1ST STAGE T/STAT
R = CLASS 2 VOLTAGE TO THERMOSTAT
G = MANUAL FAN FROM T’STAT
C = THERMOSTAT SIGNAL GROUNCONNECTED TO TRANSFORMER GRD (TR) & CHASIS GROUND (GRD)
Y1 = THERMOSTAT 1ST STAGE COOL SIGNAL
Y2 = THERMOSTAT 2ND STAGE COOL SIGNAL
O = THERMOSTAT SIGNAL TO HEAT PUMP
REVERSING VALVE
H = 24V HUMIDIFIER OUTPUT. DO NOT CONNECT
TO COMFORTSENSE® THERMOSTAT
L = USE ONLY WITH A COMMUNICATING THERMOSTAT AND A NON−COMMUNICATING OUTDOOR UNIT
DH = DEHUMIDIFICATION OUTPUT COMMUNICATING
THERMOSTAT ONLY
FIGURE 44
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