Page 41
MagnaTech
BOILERS AND VOLUME WATER HEATERS
CO
M 1
C
O
M
2
12
3
6
5
4
7
8
DI
SPLA
Y
C
B
A
J3 MB1
120 VAC
24 VAC
J5-1
IN
TERL
O
C
K
(+
)
(-)
12
43
2
1
43
2
1
43
2
1
VTB2
VTB6
VTB3
VTB5
VTB4
VTB1
24VAC
PO
W
ER
VARI
PRI
ME
COM
N/
C
N/
O
(OP
TI
ONA
L)
ENCLO
SURE
3
1
2
4
R-4
PI
LOT
J1-3
FLA
M
E
ROD
R2
M
A
IN
2
1
CIRCUIT
BREAKER
C
O
NVE
N
IE
NC
E
RE
C
EPT
AC
LE
120V
220V
FU
SE
FU
SE
CONT
ACT
OR
R2
L1
T1
L2
T2
MAIN S
WITCH
1
2
3
4
5
J2-1
J2-2
J2-3
J2-4
BLOWER
C
O
N
DE
NS
A
TE
R1
BL
O
CK F
LU
E
SW
ITC
HES
LWCO
J7-2
HI
GH
GA
S
PR
ESSUR
E SW
_
_
+
+
J6-2
J6-1
O
PTI
O
N
A
L
AD
D
ITIO
NAL
HIG
H LIMIT
J7-5
THE
RM
A
L CUT-O
UT
PR
OB
E
LOW
GA
S
PR
ESSUR
E SW
J7-3
IN
LE
T
SENSO
R
OU
TL
ET
SENSO
R
R4
TB1-29 TB1-30
M
ANUAL
RESET
HIG
H L
IM
IT
CO
NDE
NS
AT
E
R3
J7-4
J7-6
J5-3
J4-10
J5-2
UNI
T TEM
PERATURE
SENSO
RS
J5-7
J4-8
P1
P2
2
J8-2
J8-3
J8-1
VARI
PRI
M
E PUM
P C
O
NT
RO
L
MOU
N
TE
D ON
H
YD
RO
N
IC
U
N
ITS
O
N
LY
120 N
EU
TR
A
L
(VA
RI
PR
IM
E O
N
LY
)
VT
B 3-
4
VT
B 3-
3
MB2
-B
J10-
1
-
J10-
8
R3
VA
RIP
RIM
E
ONLY
-
+
-
+
+
4-20 m
a (
+)
+
-
J10-
5
45
44
43
J10-
6
DI
SPL
A
Y #6
MB2
-A
MB2
-C
J10-
3
{
PU
M
P
0-10V
DH
W
SEN
SO
R
{
COM 2
MB
2
REM
O
TE RESET
{
30
29
31
32
33
34
DI
SPLA
Y #
4
35
36
37
38
39
40
42
41
TO
D F
EED
J10-
2
J6-
8
J6-
7
AL
AR
M
{
27
28
26
25
+
24
23
22
21
TB
1-4
A
20
19
18
17
15
16
FIELD CONNECTIONS
{
TT
{
ANAL
O
G
{
OUT
DOOR SY
STEM
{
DH
W
PU
MP
{
SY
STEM
PU
MP
BO
ILER
PU
MP
{
J8-
3
TB1-
13
J8-
6
J8-
7
J8-
11
J8-
12
J4-
2
J4-
4
TB
1-4
A
TB
1-4
A
J4-
6
J4-2
J4-4
J4-6
TB
1-4A
TB
1-4A
J6-3
R1
120V+
120V-
120V-
120V+
120V-
120V+
FL
O
W
S
W
ITCH
TB1-
35C
TB1-
33C
OUTLET WA
TE
R
J8-
8
J8-
9
J8-
4
J8-
10
J8-
5
3
2
4
1
ST
ACK
J9-
4
J9-
5
J9-
6
3
2
4
1
BOI
LE
R
PU
M
P
SY
ST
EM
PU
M
P
DHW PU
M
P
TB
1-4A
N
OT
E:
W
HE
N
A
N O
PT
IO
N
A
L C
O
M
PO
NE
N
T I
S N
O
T P
RE
SE
N
T T
HE
S
IG
N
A
L M
US
T B
E J
UM
PE
D
1.
J10-
7
J9-
1
J9-
2
DI
SPLA
Y #
5
J10-
4
IN
LET
WA
TE
R
120V
H
120V
N
N
L
BL
O
W
ER
MOT
OR
PE
SPA
RK
IG
NITO
R
SP
AR
K
G
EN
ER
A
TO
R
J5-
6
1
110
V
E23627
D
C
B
A
B
C
D
1
2
3
D
ECI
MA
LS .
XX
.1
PR
O
PR
IE
TA
RY
T
O
L
A
A
RS
H
EA
TIN
G
S
YS
TE
M
S A
N
D
S
HA
LL
N
O
T B
E
THI
RD A
N
GLE P
ROJECT
ION
.
4
43
2
BY
LAARS H
EATI
N
G
SYSTEMS.
FMA
56A
DW
G N
O
.
E236
27
SH
1
REV
A
A
L 7
/13
/15
REV
IS
ION
S
RE
V.
CHA
N
G
E:
A
PP
R
D
ECI
MA
LS .
X
.0
10
PURP
O
SE EX
C
EP
T A
S S
PEC
IFIC
A
LL
Y A
UT
HO
RIZ
ED
IN W
RIT
ING
IG
NIT
O
R
A
15
-0
99N
JA
B 7
/13
/15
S
C
A
LE
: N
ON
E
IN
TEN
DED S
IZE:
SOFT
W
A
RE
DW
G. N
O
:
C
SH
EET
1
O
F 1
REV.
A
PP
RO
V
A
LS
EN
GR A
PPR
D
EC
IM
A
LS
.X
XX
TITL
E:
REPRO
D
UCED,
T
RA
N
SF
ERRED T
O
O
TH
ER DO
CUMENT
S,
USED O
R
DI
SCLOSED TO OTH
ERS F
O
R MAN
UF
A
CT
URI
N
G OR AN
Y O
TH
ER
D
IM
ENS
IO
NS
A
RE
IN INC
HE
S.
TO
LERA
N
C
ES A
RE:
MAT
ER
IAL
:
FI
NI
SH
NA
NA
D
RA
FT
EC
N
D
RA
FT
JA
T
1/
16
/15
ENGR
A
PPR
CH
ECK
S
A
L
1/
16
/15
.0
3
REM
OV
ED HS
I A
N
D A
DDED S
PA
RK
G
EN
ERA
TOR A
N
D
1/
8"
UN
LESS OT
HERW
IS
E SPECI
FIE
D
:
DO N
O
T S
C
A
LE DRA
W
IN
G
.
TH
IS
DOCU
ME
N
T AN
D TH
E I
N
FOR
M
ATI
ON
CON
TAI
N
ED H
ER
EI
N
AR
E
A
N
G
LE
S
FRA
C
TION
S
LA
DDER DIA
G
RA
M
, M
G
T 1
.6,
A
Figure 22. BMGT 1600 110V ladder diagram
8.7 Ladder Diagrams
8.7 Ladder Diagrams
