Bryant BW9, Installation, Start-Up, And Operating Instructions Manual

Page: 21 / 52

Fig.
18—Schematic
Wiring
Diagram
A99306
W
BK
120
VA
C
CONTR
OL
TRANSFORMER
24 V
A
C
120 V
A
C
1
HO
T SURF
A
C
E
IGNITER
W
BK
TRANSFORMER
PRIMAR
Y
IGNITER
R R
P6
P7
120V
A
C
BLO
WER
P5
DRAFT INDUCER
CIRCULA
T
O
R
P4
CASTING
TEMPERA
TURE SAFETY SWITCH (MANU
AL RESET)
CONTR
OL
P2
24 V
A
C
TRANSFORMER
1013-10 INTEGRA
TED BOILER CONTR
OL
P3
60 HZ, 1
BLO
WER
TEMPERA
TURE SAFETY SWITCH
A
T140B1297
G
GAS V
A
LV
E
P9
SECOND
AR
Y
R R
R
G
DIA
GNOSTIC INDICA
T
OR LIGHTS
R
PO
WER
PURGE IGNIT
OR
VA
LV
E
FLAME
CIRCULA
T
O
R
PUMP
P1
1
2
3
1
2
1
2
3
M V
3
M V
2
1
2
3
4
2 1
1
2
3
4
24V THERMOST
A
T
A
Q
U
A
S
TAT
CONTR
OL
3
2
1
4
7
5
8
69
HI LIMIT
W
R
2 1
2 1
PRESSURE SWITCH
DIFFERENTIAL AIR
1
3
54
Y
Y
Y
Y
HO
T
NEUTRAL
GR
OUND
Y
Y
V
V
BR
BR
PUR
BK
BK
W
W
PUR
P10 DRAFT INDUCER
PUR
PUR
P12
IGNITER
(N.O
.)
ON/OFF SWITCH
* RECEPT
A
CLE
1 PO
WER SUPPL
Y
. PR
O
VIDE DISCONNECT MEANS AND
O
VERLO
AD PR
O
TECTION AS REQ
UIRED
NO
TE:
"P" LABEL REFERENCE LOCA
TION OF CONNECT
OR PLUG
BETWEEN SCHEMA
TIC AND LADDER DIA
GRAM.
AND
THE UNIT
USE ONL
Y COPPER
WIRE BETWEEN
THE DISCONNECT
PUR = PURPLE BR = BR
O
W
N
V =
VIOLET
R = RED G = GREEN Y =
YELLO
W
BK = BLA
CK
W =
WHITE
COLOR DESIGNA
TION
ALL CONDUCT
ORS ARE 18 A
WG, A
WM STYLE 1015, CSA
TYPE
TEW
, 105
°
C
WITH .105" PVC INSULA
TION
24 V
O
LT
WIRING
24 V
O
LT
FIELD
WIRING
120 V
O
LT
WIRING
120 V
O
LT
FIELD
WIRING
* CA
UTION RECEPT
A
CLE IS LIVE
WHEN BOILER SWITCH IS OFF
—21—