51
PCB
Y1
R
Y/Y2
W
C
HUM
EAC-2
JB
L
E
G
E
N
D
LS 1, 2 LIMIT SWITCH, AUTO-RESET, SPST(N.C.)
OL
AUTO
-RESET INTERNAL MOT
OR OVERLOAD
TEMPERATURE SWITCH (N.C
.)
PC
B PRINTED CIRCU
IT B
OARD CON
TROL
PL1 11-CIRC
UI
T PC
B
CONNECTOR
PL2 2-CIRCUIT CONNECTOR
PL
3 2-CIRCUIT HSI, CONNECTO
R
PR
SP
RESSURE SWITC
H, SPST-(N.O.)
TES
T/TWI
N COMPONENT TEST & TWI
N TERMINAL
TRAN
TRANSFORMER-115VAC/24VAC
JUNCTION
UNM
ARKED
TE
RMINAL
PCB CO
NTRO
L
TER
MINA
L
FACTOR
Y WI
RING (115VAC)
FACTORY WIRING (24VAC)
FIELD
WIRING (
115VAC)
FIELD WI
RING (24VAC
)
CO
NDU
CTOR ON CONTR
OL PCB
FIEL
D
WIRING
SCREW
TERMINAL
FIELD EARTH GROUND
EQUIPMENT GROUND
FIEL
D SPLICE
PL
UG
REC
EPTACLE
L1
L1
BLWR
BHT/CLR
TO 115VAC FIELD DISCONNECT SWITCH
EQUIPMENT GROUND
SPARE-1
HEAT
FAN
COOL
START
OL
HI
MED HI
MED LO
LO
BLWM
SCHEMATIC DIAGRAM
(NATURAL & PROPANE GASES)
1
HSI
2
PL3
CAP
L2
NOTES:
327560-101 REV. E
om
NEUTRAL
L2
IL
K
FU2
L1
ILK
RED
BL
U
ORN
GRN/YEL
TEST/TWIN
24V
FU1
LE
D
123456 789
10
J1
BLOWER OFF-DELAY
JUMPER SELECT OR
YE
L
OL
STAR
T
BLK
WHT
WHT
(COM)
BLK
BLK
WH
T
WHT
2
1
PL
2
BL
WM
CAP
SPARE 1
SPARE
2
EAC-1
PR1
L1
SEC-2
SEC-1
EAC-2
180
150
120
90
PL
1
BRN
BR
N
RED (LO)
WHT
(COM)
YEL
BLU
(MED L
O)
COM
G
DHUM
BLK (HI)
(MED HI)
1
15VAC
PR1
TRAN
24VAC
FRS1
FR
S2
LGPS
PRS
FSE
IDM
DS
S
BVS
S
LS1
NOT
E
#10
(W
HEN USED)
F U 1
NOTE #6
R
W
SEC-1
SEC-2
HUM
GVR-2
PL1-1
CP
U
Y1
G
C
GVR-1
OM
DHUM
Y/Y2
1.
If any of the original equ
ip
ment wire is replaced use
wire rated for 105°C.
2. Use only copper wire between the disconne
ct switch and
the furnace junction bo
x (JB)
.
3. This wire must be c
onnected t
o
furnace sheet metal for c
ont
ro
l to prove flame.
4. Symbol
s
are
e
lectri
cal
re
presentation only.
5. Solid lines insid
e
PCB
are printed circui
t board conductors and are
not i
nc
luded in legend.
6.
Replace on
ly w
ith a 3 amp fuse.
7. Inducer (IDM) and blower (BLWM) motors contain intern
al
auto-reset thermal overload switche
s
(O
L).
8. Neutral connections are in
terchan
geable with
in the
NEUTRAL connector
block.
9. Blower motor speed selectio
ns are for averag
e
con
ditions, see installation instructions for details on
op
timum speed selection.
10.
Fac
tory con
nected when BVSS (Chi
mney Adapter Accessory Kit) is not i
nstalled.
11
.Factory connected when LGPS is not used.
12.
Ignition-
lo
ckout will occur
af
ter four conse
cutive u
nsuc
cess
ful trials-for-ignition
. Control will
auto-reset after three hours.
13. Blower-on delay: gas heating 25 seconds, cooling or heat pump 2 seconds.
14
.Blo
we
r-
off d
el
ay: gas heating se
lections are 9
0
, 120, 150 or
18
0 seconds, cooling or heat pump
90
s
econds or
5
seconds when D
HUM is active.
15
. YELLOW lead n
ot on all motors.
FAN
BFANR
TRAN
FSE
LS1
RED
RED
BLU
RE
D
WHT
BLK
BL
K
WHT
IDM
HSI
WH
T
BL
K
2
1
PL3
FRS1
FRS2
BVSS
DSS
11
EAC-1
HSIR
1
2
PL2
IDR
FUSE
OR CIRC
UIT
BREAKER
&
DISCONNECT SWI
TCH (WHE
N REQ’D)
NO
TE #2
GR
N/YEL
GR
N/YEL
GND
NOTE #3
NOTE #6
WH
T
NOTE #5
GV
GRN/YEL
RED
24V
NOTE #11
PRS
(WHEN USED)
LGPS
YEL
(WHEN USED)
NOTE #10
L2
(WHEN USED)
NEUTRAL
NOTE #11
GV
NE
UTRAL
NOTE #8
BFAN
R CONTINUOUS-FAN SELECT RELAY, SPDT
BHT/CLR BLOWER M
OT
OR
SP
EED
CHANGE RELAY,
SP
DT
BLWR BLOWER M
OTOR RE
LAY, S
PST-(N
.O
.)
BL
WM
BL
O
WER MOT
OR, PERMANENT
-SPL
IT-CAPAC
ITOR
BVSS BLOCKED VENT S
HUTOFF SWITCH, MANUAL-RESET, SPST -
(N.C.)
CAP CAPACITOR
CP
UM
ICROPROCESSOR AND CIRCUITRY
DSS DRAFT SAFE GUARD SWITCH, AUTO-RESET, SPST -(N.C
.)
EA
C-
1 ELECTRONIC AIR CLEANER CO
NNEC
TION (115 VAC 1.0 AMP MAX.)
EAC-2 ELECTRO
NIC AIR CLEANER CONNEC
TION (COMM
ON
)
FRS 1,
2
FLAM
E
ROLLOUT SW. -M
ANUAL RESET,
SPST-(N.C.)
FS
EFLAME
-PROVI
NG ELECT
RODE
FU
1FUSE,
3 AMP, AUTOMOTIV
E BLADE TYPE, FACTORY
INSTALLED
FU 2
FUSE OR CIRCUIT BREAKER
CURRENT INTERRUPT DEVICE
(FIELD INSTALLED & SUP
PLIE
D)
GND EQUIPMENT
GROUND
GV
GAS
VALVE-REDUNDANT
GVR 1, 2 GAS
VALVE RELAY, DPST
-(N.O.)
HSI HOT SURFACE IGNITER (115
VAC)
HS
IR HOT SU
RFACE IGNITER RELAY, SPST-(N.O.)
HUM 24VAC HUMIDIF
I
ER CONNECTION (0.5 AMP. MAX.)
ID
M INDUCED
DRA
FT MOT
OR, SHAD
ED-POLE
IDR IND
UCED DRAFT
MOTOR RELAY, S PST-(N . O.
)
ILK BLO
WER ACCESS PANEL IN
TERL
OC
K
SWITCH, S
PST-(N.O.)
J1 BLOWER - OFF DELAY JUMPER SELECTOR
JB JUNCTION BOX
LED LIGHT-EMITTING DIODE FOR STATUS CODES - AMBER
LGPS LOW GAS
PR
ESSURE SWIT
CH,
SP
ST-(N.
O.)
NEUTRAL
BHT/CL
RBFANR BLWR
CONNECTION DIAGRAM
COOL
HEAT
PL
1-
6
PL1-2
PL1
-4
PL1-
10
PL1-5
PL1
-8
TEST/TWIN
PC
B
NOTE #5
BLW
PR
INTED
CIRCIUT BOARD
PRINTED CIRCIUT
BOARD
PL1-3
PL1-9
PL1-11
PL1-7
NO
TE #15
NOTE #15
LS2
(WHEN USED)
LS
2
(WHEN USED)
RED
RED
RED
RED
ORG
ORG
A04222
Fig. 54 -- Wiring Diagram
58DL
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