Subject to change without notice. Printed in U.S.A.
035-17480-000 Rev. A (800)
Copyright
©
by Unitary Products Group 2000. All rights reserved.
Supersedes: 650.78-N1U (899)
Unitary
5005
Norman
Product
York
OK
Group
Drive
73069
WIRING DIAGRAM - UPFLOW MODELS
NOTE: The furnace’s control system depends on correct polarity of the power supply.
T
O
D
W2
G
G
Y
W1
R
B
R
HEAT/COOL THERMOSTAT
ON
AUTO
Y
COOL
HEAT
OFF
W
LOW
HIGH
COOL
LOW HEAT
HI HEAT
USING A 2 STAGE THERMOSTATE.
7. REMOVE THE DELAY TIMER HARNESS WHEN
SEE NOTE 7
BLK
BLU
BLK
BLK
RED
RED
RED
---
120VAC
L C
A A
R V
T
U 0
E 2
N 1
BLU
RED
WHT
BLU
WHT
BLK
CONTROL BOARD
RELAY CONTACTS ON IGNITION
EAC
HUM
HUM
EAC
BLU
BLK*
BLU
BLK*
RED
BLK
2000
1600
080
1200
060
GRD
GRN
GRD
NO
C
2LP
NO
ROS1
NO
C
1LP
RED
ROS1
BLOWER SPEED CHART
CONNECTION DIAGRAM
6. MOTORS ARE INHERENTLY PROTECTED.
5. PROVIDE DISCONNECTS FOR ALL POWER SUPPLIES.
4. ALL REPLACEMENT COMPONENTS MUST BE PROPERLY GROUNDED.
3. CONNECTORS SUITABLE FOR COPPER CONDUCTORS ONLY.
HAVING A TEMPERATURE RATING OF AT LEAST 221
ß
F (105
ß
C).
MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL
2. IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE FURNACE
(C) LOCAL OR CITY CODES.
(B) CANADIAN ELEC. CODE (CEC) AND/OR
1. ALL FIELD WIRING PER: (A) NATIONAL ELEC. CODE (NEC) AND/OR
FIELD CONNECTION
EAC
HUM
HUM
HUM
EAC
EAC
EAC
HUMIDIFIER
BLOWER
MOTOR
1RC
90+ UP FLOW TWO STAGE FURNACE
RELAY
IGNITER
GV
GRD
DOOR SWITCH
N.O.SW
ELEMENTARY DIAGRAM
POWER SUPPLY 120-1-60
SEE NOTE 1
GRD
DS
C
NO
LS1
C
1LP
COM
120V
24V SEC
PRI
1T (40VA)
VENTOR
MOTOR
HSI
NOTES:
LEGEND
DOT DELAY ON TIMER
FUSE
ROS1 ROLL OUT SWITCH
LS1 PRIMARY LIMIT SWITCH
P6/S6 3 PIN PLUG & SOCKET AT GAS VALVE
P5/S5 3 PIN PLUG & SOCKET AT INDUCER MOTOR
P4/S4 2 PIN PLUG & SOCKET AT HOT SURFACE IGNITOR
P2/S2 5 PIN PLUG & SOCKET ON IGN. CONTROL BOARD
P1/S1 12 PIN PLUG & SOCKET ON IGN. CONTROL BOARD
HSI HOT SURFACE IGNITOR
GV GAS VALVE
DS DISCONNECT SWITCH
- CAUTION -
OPEN ALL DISCONNECTS BEFORE
SERVICING THIS UNIT
1T TRANSFORMER, 40VA
1RC RUN CAPACITOR
2LP PRESSURE SW, SECOND STAGE
1LP PRESSURE SW, FIRST STAGE
IDENTIFIED RUN CAPACITOR
24V CONNECTION ROOM THERMOSTAT
FACTORY WIRING AND DEVICES
----- FIELD WIRING AND DEVICES
JUMPERED.
AND COOL TERMINALS
* UNITS SHIPPED WITH HEAT
WHT
P1/S1
BLOWER SPEED
FOR DESIRED
SEE CHART
IGNITER
HOT SURFACE
WHT
WHT
BLK
WHT
BLK
1
2
3
1
P4/S4
P5/S5
BRN
GRN
GRD
FLAME
SENSOR
BLU
LS1
NEUT.
120VAC
120V
COM
24V SEC
PRI
N.O.SW
DOOR
C
NO
VENTOR
MOTOR
GRN
RED (LOW)
MOTOR
BLOWER
WHT (NEUT)
BLU (MED)
BRN
1RC
BRN
BLK (HI)
1
2
3
4
5
6
7
8
9
10
11
12
PRP
P2/S2
CIR
XFMR
LINE
4
3
2
1
WHT
WHT
BLU
BLK*
PARK
LOW
HEAT
HIGH
HEAT
COOL
1200
CFM
INPUT
035-17417-000A
5
BLK
2
BRN
RED
BRN
RED
WHT
BLK
RED
WHT
BLK
BLU
BRN
1ST STAGE
2ND STAGE
6
S
\
6
P
2 STAGE
VALVE
MAIN
M
C
HI
WHT
YEL
BLK
BLK
C
NO
2LP
ORN
COOL
PARK
HEAT LO
HEAT HI
LINE
XFMR
C
A
V
0
2
1
T
O
H
HUM
EAC
WY
R
G
B
1
W
2
TIMER
ON
DELAY
1
3
BLU
WHT
3A
120VAC
120
100
1400
2000
BLK
BLK*
BLK*
BLK
BLU
BLU
RED
RED
BLK
BLK
