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CONNECTION
DIAGRAM
f
4 _j u H pA
OEGP2E cLT R
PeB
,so
FU1
24 MAC
I_
HUM
NOTE #6
i
COM/BLUE
24V
RED
N
_
@LEO
R
-5
_
m
220V 50Hz
GV
GRN/YEL
NOTE#5
LSI
CAP-2
BRN
BRN
IDM
WHT,
NOTES:
I.
2.
'BLK
FUSE ORCIRCUIT BREAKER &
DISCONNECT
SWITCH ( WHEN R EQ'D)
JB
NOTE #2
_r
.....
INEUTRAI
'"vw"7 '=F= -- = T =
,. BLK 4 _==L1
=GND,4--=
i
i
i
L______ J
SPEED TAPS
If any of the original equipment wire is replaced use wire rated for 105°C.
Use only copper wire between the disconnect switch and the furnace junction
box (JB).
3. This wire must be connected to furnace sheet metal for control to prove flame.
4. Symbols are electrical representation only.
5. Solid lines inside PCB are printed circuit board conductors and are not
included in legend.
6. Replace only with a 3 amp fuse.
7. Inducer (IDM) and blower (BLWM) motors contain internal auto-reset thermal
overload switches (OL).
8. Neutral connections are interchangeablewithin the NEUTRAL connector block.
9. Blower motor speed selections are for average conditions, see installation
instructions for details on optimum speed selection.
10. Factory connected when LGPS is not used.
11. Ignflion-lockout will occur after four consecutive unsuccessfultrials-for-ignition
control wilJauto-reset after 3-1/2 hours.
12. Blower-on delay: gas heating 30 seconds, cooling or heat pump 2 seconds.
13. BIower-off delay: gas heating selections are 90, 120,150or 180seconds,
cooling or heat pump 90 seconds or 5 seconds when J2 is out. For 50Hz add
20% to timings, so selections are 108, 144, 180 and 216 seconds for heating and
108 for cooling or heat pump or 6 seconds when J2 is out.
14. Heat tap may be factory wired with a different color. See Installation
instructions for proper airflow selection.
SCHEMATIC
DIAGRAM
220V 50Hz
TO 220MAC FIELD DISCONNECT SWITCH
k.o<19 ILK
SPARE 1(RED)|_
CAP
'r
BHT/CLR
r--
BLU
|
_
SPARE2(ORN)_
£TART_
II
.._INOTE#14
SPARE3(YEL)__
L.yJ
.........
_i
i"">1_" W"T'_'_'_ LOOM -----------_
oL
--
"_
FRSI
I
,PS
w
TII
!:"
PI-2
_
_
_(_'_q
'_lh
#10
LPS V/',
'_
I
24VAC
|
,
! , )
'_
"_
J
II I Ill
..........
_1-3
(WHEN USED)
TEST/TWl
'ulIII
GVR I
/'-_---_GV
_____FsE
x PCB NOTE # S
L
E
N
D
JUNCTION T ERMINAL
0
CONTROL TERMINAL
PCBCONTROL TERMINAL
FIELD EARTH GROUND
nit
EQUIPMENT GROUND
Q
FIELD WIRING SCREW TERMINAL
FACTORY P OWER WIRING (_:-_VAC)
.......... FACTORY P OWER WIRING (115VAC)
--
FACTORY CONTROL W IRING (24VAC)
....
FIELD CONTROL WIRING (24VAC)
CONDUCTOR ON CONTROL
-.-4 e.-- PLUGRECEPTACLE
BHTICLR
SLWR
BLWM
ESE
FU I
FU2
GND
GV
GVR
NPS
HSI
HSIR
24VAC HUM
HUM
IDM
IDR
BLOWER MOTOR SPEED CHANGE RELAY, SPDT
CAPACITOR
MICROPROCESSOR
ANDCIRCUITRy
ELECTRONIC AIRCLEANER C ONNECTION
FLAME-PROVING ELECTRODE
FUSE. 3 AMP, AUTOMOTIVE B LADE TYPE,PACTORY
INSTALLED
FUSEORCIRCUIT B REAKER CURRENT I NTERRUPT
GASVALVE-REDUNDANT
HOTSURFACE IGNITER (115 VAC)
INDUCED DRAFT MOTOR PSC
INDUCED DRAFT MOTOR RELAY, SPST_N 0 )
ILK
BLOWER ACCESS PANEL INTERLOCK S WITCH,
J1
SELECTOR- HEATING
J2
BLOWER - OFFDELAY JUMPER - COOLING
JB
JUNCTION BOX
LED
LIGHT-EMITTING
DIODE FORSTATUS
CODES - GREEN
LGPS
LPS
LS
OL
PCB
P1
11-CIRCUIT PCBCONNECTOR
P2
2..CIRCUIT CONNECTOR
P3
2-CIRCUIT H SI, C ONNECTOR
P4
3-CIRCUIT IDM, C ONNECTOR
P5
2-CIRCUIT TRANSCONNECTOR
TEST/TWIN COMPONENT TEST &TWINTERMINAL
TRAN-I
TP_S FORMER-220V/AC24VAC
XFMR
_RAN-2
Fig. 65 - Wiring
Diagram
!
A12569
78
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