Inter-City Products NCC5, Service Manual

Page: 65 / 93

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PV
24V
MV/PV
24V GND
MV
GND
MV
TRANS
VALVE
115V
MV/PV
GAS
W
BK
HUM
PV
BL
Y
LO
EAC
MODULE
LADDER DIAGRAM
COIL
W
GND
BLOWER
ROLLOUT
COMB.
24V GND
BL
G
PV
INTER- LOCK SWITCH
R
BL
AUX. LIMIT
BK
HOT 115V-60HZ NEUTRAL
GND.
INTERLOCK SWITCH
HI
COOL
S1
N1
C
HEAT
COOL
CIR BLOWER
3
*
2
4
*
4
1
5 6
2 3
X FMR SEC
X
1
UNUSED MOTOR LEADS
NEUTRAL
D1
IGNITER
MODULE
BK
L1
R
R
L1
GND
W
R
SWITCH
R
MAIN
LIMIT
MV
MAIN LIMIT
COIL
2 1
SEC
IGNITER
MV/PV
5 6 3
CONSTANT FAN (OPT)
N N
COMBUSTION BLOWER
R
W
R
Y
G
W
X
C
G
W
G
R
FURNACE
CONTROL
Y
C
R
R
G
W
C
LOW VOLT BOARD
W
BL
BK
XFMR
W
BL
CONT
R
NEUTRAL
DANGER: ELECTRICAL SHOCK HAZARD
FIELD CONNECTION BOX
115V:60HZ
DISCONNECT BEFORE SERVICING
CONNECTION DIAGRAM
HOT
BLOWER MOTOR
PRESSURE
L1
HEAT
L1
UNUSED
BL
BLACK BK BLUE BL BROWN BR GREEN G ORANGE O RED R VIOLET V WHITE W YELLOW Y
COLOR CODE
PRESSURE
SWITCH
1009280
BL
1
COMB. BLWR
2
115V
*
*
O
HOT
HUM
ACCESSORIES
EAC
N
N
THERMOSTAT
UNUSED
24V
D1
MV
MV/PV
L1
SPARK
M HI
M LO
N2
* SEE TABLE IN MANUAL FOR C.F.M. VS. E.S.P. TO DETERMINE PROPER HEATING AND COOLING SPEED CONNECTIONS.
INTERNAL CIRCUIT BOARD WIRING
IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, IT MUST BE REPLACED WITH TYPE AWM - 105^C 4/64 INSULATION WIRE OR ITS EQUIVALENT.
CAPACITOR
LINE VOLTAGE FACTORY LINE VOLTAGE FIELD LOW VOLTAGE FACTORY LOW VOLTAGE FIELD
BR
BLOWER MOTOR
BR
THERMO- STAT
BK
W
W
BK
S2
L1
R
SWITCH
ROLLOUT
ROLLOUT
SWITCH
SPARK
CAPACITOR
ROLLOUT SWITCH
PV
TRANSFORMER
24V
ROLLOUT SWITCHES
SWITCH
AUX. LIMIT
GAS VALVE
EAC
HUM
N4 N3