Laars MagnaTherm MGH1600 Installation And Operation Instructions Manual page 39

5
MagnaTherm Boilers and Water Heaters
5
4
G
12
11
W
10
9
BK
J4
8
BR/R
7
BK
6
BR/G
5
BK/O
4
BR/V
3
BK/V
2
1
BK
7
BK
6
5
4 J5
BK/R
3
BK/Y
2
W/R
1
W/R
8
W/R
7
6
POWER
5
J6
4 FLAME
GY/BL
3
ALARM
BR/R
2
BR/Y
1
RESET
7
BK/OR
6
GY/BK
5
GY/R
J7
4
J3
R
3
MB1 MB2 ECOM
GY/V
2
A B C A B C 1 2 3
1
Y
CR1
BL
1 2
4
3
5 6
BL
7 8
BK W
BL Y
4 3
4 3 2 1 4 3 2 1
VTB2 VTB5 VTB4
VARIPRIME
ENCLOSURE
24VAC POWER DIGITIZED
VTB1 P/N LAARS-1
1 2
Y (+)
(-)
BL
Page 2 of 2
4
3
FLAME ROD
BL
4 3
1
Y
2
2 1
J1
BL
3
V/W
J2
4
V
J8
5
OR
6
OR/W
7
W/BK
8
W/V
9
W/BK
10
BR/Y
11
BR/Y
12
BL/W
1
2
BL
3
W/R
4
J9
5
W/G
6 W/R
7
1
TB1-39C
2
TB1-42C
3
TB1-40C
4
TB1-43C
J10
5
TB1-45C
6
TB1-44C
7
8
1
2
3
J11
4
5
6
7
TB1-38C
TB1-37C
TB1-36C
W
BR
CR2
1 2
BL
4
3
5 6
7 8
BL
W
V
V
BL Y
VTB3
4-20ma(+)
1
2 1
4-20ma(-) 2
3
0-10 V(+)
DRAIN WIRE
0-10 V(-) 4
FROM
SHIELDED
VTB6
CABLE
N/O 1
COM 2
(OPTIONAL) N/C 3
3
2
8 POS CONN "C"
1
5
2
6
3
4
8
7
CONN-
ECTOR
"D"
DISPLAY
COM 1 COM2
1 2 3 4 5 6 7 8
BL
Y
NOTE:
1. DASHED LINES DENOTE VARIPRIME PUMP
CONTROLS. VARIPRIME INSTALLED ON
HYDRONIC UNITS ONLY.
*
2. = USED ON SIZE 4.0 KBTU ONLY
2
INLET TEMP
1
R
2
OUTLET TEMP
1
R
UNLESS OTHERWISE SPECIFIED: DO NOT SCALE DRAWING.
TOLERANCES ARE: THIRD ANGLE PROJECTION.
DECIMALS .X .1
FRACTIONS 1/8" DIMENSIONS ARE IN INCHES.
DECIMALS .XX .03
DECIMALS .XXX .010
ANGLES 1
APPROVALS
MATERIAL:
N/A
DRAFT
4/19/13
ENGR
AL 5/17/13
FINISH
N/A
APPR
2
1
Page 35
REVISIONS
REV. ECN DRAFT CHECK ENGR APPR
B
JM 2-11-14 AL 2-11-14
14-002N-13
INCREASE LINE WEIGHT FOR HIGH VOLTAGE TRACES
CHANGE:
2
INLET WATER TEMP
1
1 2
OUTLET WATER TEMP
3 4
1 2
STACK TEMP
3 4
TITLE:
DIAGRAM, WIRING/BLOCK, MGT
INTENDED SIZE: SOFTWARE DWG. NO:
D S
E23512
SCALE: NONE SHEET 1 OF 1
1
APP
REV.