Bryant 393AAV ÐUnit Wiring Diagram, 135 SEC, 180 SEC, 225 SEC, Blwr, Schematic Diagram, A00304

322869-101 REV. H

Ð7Ð

SW2

(WHEN USED)

(WHEN USED)

PCB

BLOWER

G

NOTE #14

NOTE #11

(WHEN USED)

NOTE #9

R

DSS

BVSS

ALS

PRS

LGPS

OFF

Y

(NOT ON ALL MODELS)

DELAY

SW1

W

ORN

ORN

ORN

ORN

ORN

BLOWER OFF DELAY

COM

SELECTION CHART

HUM

YEL

NOTE #13

90

SEC

TEST/TWIN

NOTE #14

135 SEC

LED

BLU

LS

NOTE #15

180 SEC

RED

225 SEC

PL1

3

2

1

(WHEN USED) NOTE #11

GV

WHT

6

5

4

FSE

FL

GVR

9

8

7

RED

FRS1

FRS2

GRN/YEL

SEC-1

SEC-2

GRN/YEL

NOTE #5

BLU

BLK

HI/LO

TRAN

RELAY

RED

WHT

24 VAC-3A

WHT (COM)

FU1

FUSE

BLK (HI)

GRN/YEL

BLOWER

HSIR

IDR

BLWR

COOL

BRN

SPEED

SPARE-1

OL

SELECT

YEL (MED HI)

START

L2

HEAT

SPARE-2

NOTE #7

CAP

PL3

EAC-1

120

VAC

PL2

2

PR2

AMP

BLU (MED LO)

BRN

1

1

L1

PR1

2

3

COM

EAC-2

1.5

RED

(LO)

BLWM

WHT

WHT (COM)

WHT

BLK

BLK

BLK

WHT

BLK

PL5

FUSED DISCONNECT

WHT

ILK

JB

SWITCH (WHEN REQ’D)

1

2

NOTE #4

IDM

L1

BLK

BLK

FU2

GRN/YEL

HSI

WHT

NEUTRAL

GND

TO 115VAC FIELD DISCONNECT									SCHEMATIC DIAGRAM
L1	L2							(NATURAL GAS & PROPANE)
NOTE #4			EQUIPMENT GROUND
ILK									LO		L2
				SPARE-2
									MED LO
					HEAT
									MED HI
					SPARE-1				HI	START
			HI/LO						OL
L1	BLWR						NOTE #7
					COOL
											CAP
					COM			COM			BLWM
		EAC-1
	HSIR		EAC-2
						1		1	HSI
					PL2	2	PL5	2			IDM
	IDR
			PR1	115VAC			PR2	1
			TRAN					3	PL3
					24VAC			2	NOT USED
TEST/TWIN	FU1	NOTE #6
			SEC-1		SEC-2				FRS1		FRS2
NOTE #12
			GVR-2					7
HUM
									(WHEN USED)
											FL
								1	NOTE #11
R											LS
											NOTE #13
W									NOTE #13	LGPS	PRS
								4	PL1	(WHEN USED)
		HSIR	BLWR		HI/LO				(WHEN USED)
			IDR				GVR		DSS	NOTE #14
										BVSS
								3			ALS
										NOTE #14
											(WHEN USED)
									NOTE #15
			CPU
						GVR-1
								2			GV
Y

LEGEND

ALS	AUXILIARY LIMIT SWITCH, OVERTEMP. -MANUAL RESET, SPST-(N.C.)
BLWR	BLOWER MOTOR RELAY, SPST-(N.O.)
BLWM	BLOWER MOTOR
BVSS	BLOCKED VENT SHUTOFF SWITCH, SPST - (N.C.)
CAP	CAPACITOR
CPU	MICROPROCESSOR AND CIRCUITRY
DSS	DRAFT SAFEGUARD SWITCH

EAC-1 ELECTRONIC AIR CLEANER CONNECTION (115 VAC 1.5 AMP MAX.)

EAC-2 ELECTRONIC AIR CLEANER CONNECTION (COMMON)

FL	FUSIBLE LINK
FRS	FLAME ROLLOUT SW. -MANUAL RESET, SPST-(N.C.)
FSE	FLAME PROVING ELECTRODE
FU1	FUSE, 3 AMP, AUTOMOTIVE BLADE TYPE, FACTORY INSTALLED
FU2	FUSE OR CIRCUIT BREAKER CURRENT INTERRUPT DEVICE
	(FIELD INSTALLED & SUPPLIED)
GV	GAS VALVE-REDUNDANT OPERATORS
GVR	GAS VALVE RELAY, DPST-(N.O.)
HI/LO	BLOWER MOTOR SPEED CHANGE RELAY, SPDT
HSI	HOT SURFACE IGNITOR (115 VAC)
HSIR	HOT SURFACE IGNITOR RELAY, SPST-(N.O.)
HUM	24VAC HUMIDIFIER CONNECTION (.5 AMP. MAX.)
IDM	INDUCED DRAFT MOTOR
IDR	INDUCED DRAFT RELAY, SPST-(N.O.)
ILK	BLOWER ACCESS PANEL INTERLOCK SWITCH, SPST-(N.O.)
JB	JUNCTION BOX
LED	LIGHT-EMITTING DIODE FOR STATUS CODES
LGPS	LOW GAS PRESSURE SWITCH, SPST-(N.O.)
LS	LIMIT SWITCH, AUTO RESET, SPST(N.C.)
OL	AUTO-RESET INTERNAL MOTOR OVERLOAD TEMP. SW.

PCB	PRINTED CIRCUIT BOARD
PL1	9-CIRCUIT CONNECTOR
PL2	2-CIRCUIT PCB CONNECTOR
PL3	3-CIRCUIT IDM CONNECTOR
PL5	2-CIRCUIT HSI/PCB CONNECTOR
PRS	PRESSURE SWITCH, SPST-(N.O.)
TEST/TWIN	COMPONENT TEST & TWIN TERMINAL
TRAN	TRANSFORMER-115VAC/24VAC
	JUNCTION
	UNMARKED TERMINAL
	PCB TERMINAL
	FACTORY WIRING (115VAC)
	FACTORY WIRING (24VAC)
	FIELD WIRING (115VAC)
	FIELD WIRING (24VAC)
	CONDUCTOR ON PCB
	FIELD WIRING TERMINAL
	FIELD GROUND
	EQUIPMENT GROUND
	FIELD SPLICE
	PLUG RECEPTACLE

8	NOTE #5
G
5	FSE
6	NOT USED
COM	NOT USED
9

NOTES:

1.If any of the original equipment wire is replaced use wire rated for 105°C.

2.Inducer (IDM) and blower (BLWM) motors contain internal auto-reset thermal overload switches (OL).

3.Blower motor speed selections are for average conditions, see installation instructions for details on optimum speed selection.

4.Use only copper wire between the disconnect switch and the furnace junction box (JB).

5.This wire must be connected to furnace sheetmetal for control to detect flame.

6.Replace only with a 3 amp fuse.

7.Yellow lead not on all motors.

8.Blower-on delay, gas heating 45 seconds, cooling or heat pump 2 seconds.

9.Blower-off delay, gas heating 90, 135, 180 or 225 seconds, cooling or heat pump 90 seconds.

(135 seconds only on some models)

10.Ignition-lockout will occur after four consecutive unsuccessful trials-for-ignition. Control will auto-reset after three hours.

11.When used, auxiliary limit switch (ALS) is on some downflow models only. When used, FL is on upflow models only.

12.Some models may have spade quick connect terminals.

13.Factory connected when LGPS is not used.

14.Factory connected when BVSS is not used. BVSS used when Chimney Adapter Accessory Kit is installed.

15. Gas valve leads are interchangeable on single stage valves.

Fig. 7ÐUnit Wiring Diagram

A00304