42
L
E
G
E
N
D
JU NC TIO N
TERM INAL
C O NTROL TERMI NAL
FA CT O RY PO WER
WIRING ( 115V A C )
FA CT O R Y CO N TR O L
WIRING (2 4VAC )
FIELD C O NTROL
WIRING (2 4VAC )
C O ND UC TO R ON
CONTROL
FIELD WI RING
SC REW TER M INAL
EQU IPM ENT
GROUN D
PLUG REC EPTAC LE
NOTES:
328782-101 REV. A
1. If any of the original equipment wire is replaced use wire rated for 105°C.
2. 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. Inductor is used with 3/4 hp and 1 hp ECM Blower motors.
8. Factory connected when (LGPS) not used.
9. Blower off-delay, gas heating selections are (90, 120, 150, 180) seconds, cooling or heat pump
90 seconds or 5 seconds when dehumidify call is active.
10. Ignition lockout will occur after four consecutive unsuccessful trials for ignition. Control will
auto-reset after three hours.
11. Inducer motor (IDM) contains internal auto-reset thermal overload switch.
12. Factory connected when BVSS is not used. BVSS used when Chimney Adapter Accessory Kit is
installed.
13. Any of the 5 wires shown within the NEUTRAL L2 box can be connected to any terminal within the box.
14. Blower motor (BLWM) is locked-rotor overload protected by redundant electronic control circuits.
A/ C Ai r C ond itioning (A d justa b le Ai rflow -C FM )
AC R Ai r C o nd itioning Rel a y, SPST ( N.O .)
AC RD J Ai r C o nd itioning Rel a y Def ea t J ump er
BLWM B low er M oto r ( EC M )
BV SS B lock e d V e nt Sa fe ty Sw itch , M a nua l R e se t,
SPST (N .C . )
C F C ontinuou s Fa n (A d justa b le Ai rflow -C FM)
C O MMR C o mmu nica tion Rel a y, S PDT
CP U Mi c rop roc e sso r 7 Ci rc uitry
DH UM DH UM C o nne cti o n (2 4VAC 0 .02 Amp s)
DSS Dr a ft Sa fe gua rd Sw. , A uto- Rese t, SP ST ( N.C .)
EAC -1 Elect roni c Ai r C lea ne r C o nnecti on
( 115VAC 1.0 Amp Ma x.)
EAC -2 Elect ronic Ai r C lea ne r C onnecti on (C ommon)
FRS Fla m e R ollo ut Switc h, M a n. Reset , SPST(N. C .)
FSE Flam e -Proving Se nsor Elec trod e
FUSE Fuse , 3 Amp , Au tomo tive Bla d e Typ e,
Fa c tory Insta lle d
GV Ga s Va lve
GV R Ga s Va lve Rel a y, DP ST (N.O. )
HPS H igh -Hea t Pres sure Sw itc h, SP ST ( N.O .)
HPSR High -Hea t Pres sure Sw itc h Rel a y, SP ST ( N.C .)
HSI H ot Surfa ce Ign iter ( 115VA C )
HSIR Hot Surfa ce Ig niter R e la y, SPST (N .O.)
HUM 24V A C Humidie r C o nne c tion ( 0.5 A mp M a x.)
HUM R Hu midie r Re lay, SPST (N. O .)
IDM Ind ucer Dra ft Moto r, 2 -Sp eed , S ha d e d Po le
IDR I ndu cer Mot o r Rel a y, S PST ( N.O.)
IHI/LO R Ind uce r M oto r Sp e e d C ha ng e Re la y, SPDT
ILK Blower Door Inte rloc k Sw itc h, SP ST ( N. O .)
IND Ind uc tor (N ot e # 7)
LED Light Em itting D iod e fo r Stat us C o de s
LG PS Lo w Ga s P res sure Sw itch, SPST (N. O .)
LPS Lo w-He a t Pres sure Sw itch, SPST ( N. O .)
LS 1, 2 Limit Sw itch, Au to- Res et, SPST ( N. C .)
PC B Printe d Ci rc uit B oa rd
PL1 12-Ci rc uit C o nn ec to r
PL2 4-Ci rc uit H SI & ID M Co nne c to r
PL3 4-Ci rc uit E C M BLWM Co nne c to r
PL4 4-Ci rc uit Mo de l P lug C onn e c to r
PL7 4-Ci rc uit Co m munic a tio n C onn ec to r
PL9 2-Ci rc uit O AT C o nne c to r
PL10 2-C irc uit HSI C onne cto r
PL11 IDM Co nne c tor ( 3-C irc uit)
PL12 1-C irc uit In duc tor Sp lice C onne cto r
PL13 1 6-Ci rc uit E C M B lowe r Ct rl. C o nne c tor
PL14 5-Ci rc uit E C M B lowe r P owe r Co nne c to r
SW1 -1 Ma nu a l Sw itch , St a tus C o de Reca ll, SPST (N. O . )
SW1 -2 Ma nu a l Sw itch , L ow- He a t On ly, SP ST(N .O. )
SW1 -3 Ma nu a l Sw itch , L ow- He a t Rise Ad j. SPST (N. O .)
SW1 -4 Ma nu a l Sw itch , C omf ort/ Effici enc y Ad justment,
SPST ( N.O .)
SW1 -5 Ma nu a l Sw itch , C oo ling C FM /Ton, SPST ( N.O.)
SW1 -6 Ma nu a l Sw itch , C omp one nt Test, S PST (N.O.)
SW1 -7,8 Ma nua l Sw itches , Blow er Of f-De la y, SP ST( N.O. )
SW4 -1 Ma nu a l Sw itc h, Tw inning M a in (O FF) / Sec . (O N )
SW4 -2& 3 FO R FUTURE USE
TRAN Tran sfo rm e r, 115V A C / 24VA C
GV
M
C
HI
NOTE #3
BLU
BRN
HPS
GRN / YEL
FRS1
FRS2
DSS
BV SS
NOTE #8
(WHEN USED)
GR Y
ORN
RED
NOTE #12
RED RED
RED
ORN
LPS
(WHEN USED)
LG PS
BRN
FSE
WH T
PL3
1
4
HSI
L1
FUSED O R CI RC UIT
BREA KER D ISC O N NECT
SWITC H (W HEN RE Q 'D)
NOTE # 2
GND
NEUTRAL
FU2
BLK
ILK
PL10
JB
1
2
BLK
WHT
PL1
TRAN
BLWM
NEUTRAL - L2
L1
EA C -1
PL12
IND
NOTE #7
PL12
4
LOHI
HSI
PL2
VS
EA C -2
NOT E # 13
BLK
WH T
WH T
WH T
RED
BLU
SEC -2
CODE
SEC -1
HUM
FUSE 3 -AMP
W/W1DHUM G
24V
om
C
W2 Y/Y2 RY1
STATUS
LEDS
COMM
AC RD J
PL8
PL9
OA T
SW 4
PL7
AB C D
CF
AC
SW1
PL4
GRN / YEL
1. De fau lt A /C air flow w he n A /C s w itc he s ar e in O FF po sition
2. Def a ult c o nt. fa n a irflow when C F swi tc hes a re in O FF p o sition
A/ C OR C F AI RFLO W SELEC TIO N C HAR T BA SED ON 3 50 C FM/ TO N
1
HSI
2
IDM
1
2
3
HI
COM
LO
SCHEMATIC DIAGRAM
IDR
TO 115VAC FIELD-DISCONNECT SWITCH
ILK
EQUIPMENT
GROUND
1
2
3
HSIR
IHI/LOR
PL2
L2
L2
FU1
NOTE #6
DSS
FRS2
PL1-8
R
PL1-6
LS1
PL11
PL10
NOTE #12
4
CP U
NOTE #5
PC B
PL3
12 3 4
BLWM
PL13
10
16
1
7
5
4
3
2
1
EAC -1
PL14
PL12
IND
NOTE #7
PL12
L1
EAC
EAC -2
TRAN
115V A C
L1
L2
SEC 2
SEC 1
24VA C
(WHEN USED)
BVSS
PL1-12
HPSR
GV
LPS
NOTE #8
LGPS
(WHEN USED)
HPS
HI
PL1-2
PL1-4
PL1-3
PL1-10
PL1-5
W/W1
CPU
GVR
DHUM
W2
Y/Y2
G
Y1
COM
NOTE #3
C
M
PL1-1
FSE
NOTE #5
ACR
COMMR
PCB
1
1
1
1
2
2
21 0017501400
14 001400
12 251225
1225
1225
12 25
10 50
10 50
1050
875
875
87 5
70 0
70 0
700
525
525
110, 135,
155
090
DE F.
DE F.
DE F.07 0
SIZE
MO DE L
1 2 3
OF F
1 2 3
OF F
1 2 3
OF F
1 2 3
OF F
1 2 3
OF F
1 2 3
OF F
1 2 3
OF F
1 2 3
OF F
ORN
BLK
GRN/ YEL
5
16
17
10
BLU
YEL
GRN
RED
PL13
PL14
BLK
YE L
CONNECTION DIAGRAM
WH T
RED
BLK
BLK
WH T
YE L
1
4
3
2
BLU
YEL
GRN
RED
SW1 -7, 8
BLOW ER OF F DELAY
SELEC TIO N
90
SEC
12 0
SEC
15 0
SEC
18 0
SEC
OF F
OF F O FF
OF F
7 8 7 8 7 8
7 8
1
1
2
1
1
AC RD J
GRN/YEL
IDM
COM
LO
PL11
1
3
2
HI
WHT
RED
BLK
PR INTED C IR C IUT BO ARD
PR INTED C IR C IUT BO ARD
HUMR
HUM
RED
LS2
(WHEN USED)
RED
LS2
(WHEN USED)
FRS1
LS1
MO DE L
MO DE L
SIZE
PLUG
HK70EZ
PIN RESI STANC E K
1 - 4 2 - 3
070
090
110
135
155
001
003
004
005
006
5. 1
5. 1
5. 1
5. 1
5. 1
11
24
33
39
51
PL4 - MO DE L PLUG C HA RT
L2
L2
110 007
5. 1
62
C OOL IN G
SIZE
-----
-----
-----
-----
066/ -22
060/ -20
A04014
Fig. 59 -- Wiring Diagram
315A
To Next Page
Loading...
