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THERMOSTAT
Y
6
CONNECTIONS
W
R
CONTROL
G
C
TERMINAL ORDER REARRANGED FOR CLARITY
E
E
H
H
L
X
X
C
L
5
A
A
U
U
I
F
F
I
I
C
C
M
M
N
M
M
R
N
**
*
R
E
R
R
E
C
H
P
P
H
N
H
N
H
H
N
H
H
O
E
A
A
N
I
G
I
N
O
E
O
E
O
O
E
T
T
P
L
L
M
M
O
A
R
R
E
G
F
N
N
E
T
U
T
U
T
T
U
R
H
S
I
O
V
V
L
T
K
K
U
N
P
D
U
D
A
U
X
L
I
120 V
M
I
TRANS-
T
FORMER
24 V
L
I
F
S
M
I
L
E
T
A
N
NO
M
S
PS
C
E
O
PRIMARY
NC
R
COMBUSTION
RL
GV
CB
CAP
ACB
C
DOOR
NO
GND
SWITCH
L1
IGNITOR
N
FIELD
CONNECT
WARNING:DISCONNECT POWER BEFORE
SERVICING.WIRING TO UNIT MUST BE
PROPERLY POLARIZED AND GROUNDED.
FACTORY WIRED BLOWER MOTOR TO CONTROL CONNECTIONS
*
FURNACE MODEL
HEATING BLOWER SPEED
MANUFACTURER'S
*
SPEED
MOTOR TO "HEAT"
VARIABLE LETTER
GUI*,GCI*: 045*30,
LOW
RD-24
070*40
GUI*,GCI*: 070*30,
MED LOW
OR-29
090*50
GUI*,GCI*: 115*50
MED
BU-23
GUI*,GCI*: 090*30,
BK-26
HI
115*40,140*50
!
TO AVOID POSSIBLE ELECTRICAL SHOCK, PERSONAL INJURY,
WARNING
OR DEATH, DISCONNECT THE POWER BEFORE SERVICING.
GAS VALVE
PRIMARY
(GV)
ROLLOUT
LIMIT (RL)
M
1
CAPACITOR
C
2
BR-27
P
3
AUX LIMIT
CONTROL
NC
VT-14
PRIMARY LIMIT
CONTROL
LIMIT
FLAME
SENSOR
GN
BK
BLOWER
(CB)
WH-
WH
23
IGNITOR
BK-3
DOOR SWITCH (CLOSED
WHEN DOOR IN PLACE)
L1
115V
WARNING:DISCONNECT POWER
WH
BEFORE SERVICING.WIRING TO
N
UNIT MUST BE PROPERLY
GND
POLARIZED AND GROUNDED.
ELECTRICAL BOX
COLOR CODE
YL YELLOW
OR ORANGE
**
COOLING
VT VIOLET
MOTOR
BLOWER SPEED
SPEEDS
GN GREEN
SEE
BK BLACK
4
INSTALLATION
BR BROWN
INSTRUCTIONS
WH WHITE
TO DETERMINE
BU BLUE
PROPER
4
GY GRAY
COOLING
BLOWER SPEED.
RD RED
4
LOW VOLTAGE
LOW VOLTAGE FIELD
HI VOLTAGE
4
HI VOLTAGE FIELD
#26 BK (HI)
AIR
BR
#23 BU (MED)
CIRCUL.
BR
BLOWER
#29 OR (MED LOW)
(ACB)
#24 RD (LOW)
(CAP)
WH
BR-21
GY-47
VT-20
COM
PRESSURE
SWITCH (PS)
NO
YL-11
OR-16
BU-15
BU-25
WH-33
RD-22
BU-36
VT-55
BK-6
BK-1
WH-2
LINE
TRANSFORMER
LOAD
GY-25
GN
OR-3
IMPORTANT:
READ BEFORE OPERATING OR SERVICING THIS UNIT.
1. SET HEAT ANTICIPATOR ON ROOM THERMOSTAT AT 0.7 AMPS.
2. MANUFACTURER'S SPECIFIED REPLACEMENT PARTS MUST BE USED WHEN SERVICING
3. IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE FURNACE MUST BE
REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE RATING OF AT LEAST
105°C. USE COPPER CONDUCTORS ONLY.
4. UNUSED BLOWER MOTOR LEADS MUST BE PLACED ON "PARK" TERMINALS OF CONTROL OR TAPED.
5 IF HEATING AND COOLING BLOWER SPEEDS ARE NOT THE SAME DISCARD JUMPER BEFORE CONNECTING
BLOWER LEADS.
6 DIAGNOSTIC LIGHT:STEADY=REPLACE CONTROL;1 FLASH=LOCKOUT;2 FLASHES=PS STUCK CLOSE;
3 FLASHES=PS STUCK OPEN;4 FLASHES=OPEN HIGH LIMIT SWITCH;5 FLASHES=RED WIRE ON CONTROL
CONNECTOR OPEN
115V FIELD
CONNECT
ELECTRONIC
AIR CLEANER
5
**
*
BK-6
CONTROL
BK-1
VT
-55
RD
-22
12
6
RD-44
11
THERMOSTAT
CONNECTIONS
10
115V FIELD
CONNECT
HUMIDIFIER
Y
W
R
G
C
BR-21
GY-47
YL-11
BU-25
11072901 REV. 0
9
6
3
8
5
2
OR
-3
7
4
1
BU
-36
VT
-20
GY
-25
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