Bradford White Brute MagnaTech BMGV1600 Installation And Operation Instructions Manual page 44

Page 40
THIS DOCUMENT AND THE INFORMATION CONTAINED HEREIN ARE
PROPRIETARY TO LAARS HEATING SYSTEMS CO. AND SHALL NOT BE
REPRODUCED, TRANSFERRED TO OTHER DOCUMENTS, USED OR
DISCLOSED TO OTHERS FOR MANUFACTURING OR ANY OTHER
PURPOSE EXCEPT AS SPECIFICALLY AUTHORIZED IN WRITING
BY LAARS HEATING SYSTEMS CO.
8.10 Wiring Diagrams
(continued)
12 POS CONN "B"
4
TO LWCO PROBE AT HX
10
5
MAIN
VALVE
9
3
8
PILOT
VALVE
2
7
SPARK
IGNITOR
GENERATOR
1
16 POS CONN "A"
8
BLOCKED FLUE &
GND BLOCKED INTAKE
15
*
7
14
CONDENSATE
6
HIGH GAS
13
5
LOW GAS
12
4
FLOW SWITCH
11
3
THERMAL
CUTOUT
10
2
ADDITIONAL
HIGH LIMIT
9
1
W
2
TO TB1-4C (120V N)
LWCO
W
TO B4 (PROBE)
PROBE
P1 P2
MANUAL RESET
HIGH LIMIT
MAIN PWR
SWITCH
BK/OR
BK W
WIRE COLOR LEGEND
BK BLACK
BL BLUE
BR BROWN
WIRE VOLTAGE KEY
G GREEN
24V=
GY GRAY
OR ORANGE
120V=
R RED
14 kV=
V VIOLET
W WHITE
Y YELLOW
Figure 22. Wiring Diagram, Model 2000 thru Model 4000
FROM LWCO
"PROBE" TO PROBE
W
G
BK/R
BR
W/R
BK/Y
W/G
BK
W/V
BL/W
*
1
17 16 2 5
VFD
Blower VFD
6 POS CONN "E"
Contacts
12 14 4 8
C
NC NO
13 1 5
9
A
1
GROUND
2
W
3
4
5
6
7
8
Y
9
24V NEUTRAL
10
24V NEUTRAL
11
BL/Y 24V NEUTRAL
12
13
14
15
BOILER PUMP
16
BOILER PUMP
17 SYSTEM PUMP
18
SYSTEM PUMP
19
DHW PUMP
20
DHW PUMP
OUTDOOR/
21
OUTDOOR/
22
23
ANALOG (-)
24
ANALOG (+)
25
26
27
28
29
30
31
DHW SENSOR
32
DHW SENSOR
33
34
35
36
37
38
39
REMOTE RESET
40 REMOTE/TOD
COMMON
41
42
TOD TOD
43
4-20ma (+)
W
4-20mA (-)
44
0-110VDC (-)
45
0-10VDC (+)
BK
2 3 4 5 6
Y
B C
TB1
G
G
120V (N)
LWCO #2 120V (N)
120V (N)
120V (N)
BK
120V +
120V +
BK/W
Y
DISPLAY #7
Y
BK
BL
24V +
BL
BL
24V +
DISPLAY #8
24V +
BR/R
W/V
BR/G
BR/V
BR
SYSTEM
BR/Y
SYSTEM
OR/W
OR
BL
TT
BL
TT
W/R
ALARM
W/R
ALARM
BK
PUMP
W
0-10V
BL/W
BL
BR/R DISPLAY #4
COM2-A
DISPLAY #5
W/R
COM2-B
DISPLAY #6
COM2-C Y/R
J3-MB2A
BR/G
MB2-A
J3-MB2B
MB2-B W/G
MB2-C Y/G J3-MB2C
J10-1
R/BN
J10-3
R/BK
R/BR J10-2
J10-4
V
J10-6
V/W
V/BK J10-5
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