A.O. Smith 400 - 2100, Руководство по установке и эксплуатации

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Installation & Operation Manual
10
Connection diagram
(continued)
LBL20331 REV A
1 2 3 4
1 2
2 1
IGNITER
CONNECTOR
3
2
1
P
PR
/B
K
BL
/W
IG
N
1
IG
N
1
P1 S2 S2
+
S2
-
AL
R
RS
T
1
S1
DISPLAY
BOARD
1 2 3 4 5 6 7 8 9 10 11
12
1 2 3
4 5 6
7 9
MAIN UNIT
CONNECTOR
8
GY
GY
HI-LIMIT
C NO NC
C 2 1
O
AUX
HI-LIMIT
OPTIONAL
C N O N C
1 2 C
2
1 1
2
FLOW
SWITCH
BK
R
2
1
1
2
BK
W
BK
R
O
Y
W
1
2
3
4
5
6
7
9
2 1 1 1 2 2
STAGE #2
HI/LO
SPEED
BLOWER
LOW GAS
BURNER
GROUND
HSI
STAGE #1 STAGE #1 STAGE #1
AIR
SWITCH
Y
R/BK
R
Y
R
Y Y
R
Y Y
R/BK
T
BK R W G
BK W
T O
O
O/BK
O/BK
O
O
O/BK
MAIN UNIT
CONNECTOR
OPTIONAL OPTIONAL OPTIONAL
S2
R/BK
STAGE #2 STAGE #2
24VCOM
S1
LOW
GAS
HIGH
GAS
NO COM NC
OPTIONAL
NO COM NC
R
W
R
Y BK
R
R/
BK
8
CHASSIS
GROUND
~~~~
~~~~
LWCO
PROBE
1
2
3
PR
5
2
4
1
6
3
LWCO
24VAC
G
4
3
2
1
BL
Y
O
O/BK
GY GY
RESET
PR
TEST
~~~~
24VCOM
24VAC
24VCOM
20VNEU
B
A
A
B
O
3
2
1
G
GY
GY
GY
GY
FLOW
SWITCH
HI/LO GAS
24VAC
XFMR.
120V 24V
Y
CIRCUIT
BREAKER
BK
BL
BL
BK BL Y W
24V COMMON
GROUND
120VAC
120VNEU
24VCOM
24VAC
LWCO
CONNECTOR
LWCO
CONNECTION
T
T
SINGLE
SPEED
BLOWER
BK
W
0500
0750 -2100
R/
B
K
Y
R
BL
O
O
OPTIONAL
R
O
G
O/BK
O
4
3
2
1
BL
Y
24VCOM
24VAC
O/BK
O
O
O
DOTTED LINE
INDICATES OPTIONAL
EQUIPMENT
ITEM INDICATES
T=TAN
Y=YELLOW
BR=BROWN
G=GREEN
GY =GRAY W = WHITE
BK = BLACK
PR=PURPLE
BL=BLUE
P=PINK
O=ORANGE
Y/G = YELLOW WITH GREEN STRIPE
R=RED
1 2
1 2
TO PREVENT ELECTRICAL SHOCK
THIS HEATER MAY BE CONNECTED TO MORE THAN ONE BRANCH CIRCUIT . MORE THAN ONE
DISCONNECT SWITCH MAY BE REQUIRED TO DE-ENERGIZE THE EQUIPMENT FOR SERVICING.
DANGER
!
Notes:
1. All wiring must be installed in accordance with : local, state , provincial and national code requirements
per either N .E.C. in USA or C.S.A. in Canada.
2. If any original equipment wire as supplied with the appliance must be replaced , it must be replaced
with wire having same wire gauge (AWG) and rated for a minimum of 105 °C
3. Actual connector block locations may vary from those shown on diagrams
. Refer to actual
components for proper connector block locations when using diagrams to trouble shoot unit .
T
R/BK
W
G
G
G
2 3 4 1
G
O/BK O/BK
O O
67