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LABEL, LADDER DIAGRAM
WH
LBL20170Dwg No.
Model
Title
Material
Blank
MV 11/5/10
JH 11/5/10
11/5/10
Drawn by: Date:
Checked By:
Approved By:
Date:
BPDate:
1 2 3 4 5 6 7 8
A
C
D
B
SHEET 1 OF 1C O N F I D E N T I A L
THIS DRAWING IS THE PROPERTY OF LOCHINVAR CORPORATIONAND CAN NOT BE ALTERED, REPRODUCED OR DISTRIBUTED
WITHOUT WRITTEN PERMISSION
A
C
D
B
1 2 3 4 5 6 7 8
Lochinvar Corporation300 Maddox Simpson Parkway
Lebanon, TN 37090TEL 615-889-8900 FAX 615-547-1000
www.lochinvar.comHIGH EFFICIENCY WATER HEATERS AND BOILERS
®
REV
SIZE
BC
THIRD ANGLE
PROJECTION NOT TO SCALE
UNLESS OTHERWISE SPECIFIEDDIMENSIONS ARE IN INCHES
FINISH IN MICROINCHES
DECIMAL.X u .125
.XX u .060.XXX u .031
ANGULARu 1v
FINISH:
DEBURR AND BREAKALL SHARP EDGES .005 MAX
DO NOT SCALE THIS DRAWING
63
REV DESCRIPTION ECO DATE APR
C REVISE PER LOW VOLTAGE BOARD,ADD ON/OFF SWITCH, REMOVEBLOCKED DRAIN
C08914 10/17/11 ERCNOTES 1. MATERIAL: WHITE PAPER WITH LAMINATION AND
PRESSURE SENSITIVE ADHESIVE, 9 1/4" H X 7" W. 2. PRINTING: BLACK.
BO
X D
EP
ICT
SO
PT
ION
AL
ITE
MS
LAD
DE
R D
IAG
RA
MLB
L201
70 R
EV
C
120
VA
C
24 V
AC
120V
AC
TE
RM
INA
L S
TR
IP12
0V S
UP
PLY
"L"
ON
/ O
FF
SW
ITC
HX
1-6
F2
NE
UT
RA
L
INT
EG
RA
TE
DC
ON
TR
OL
X2-
1
GA
S V
ALV
E
GA
S V
ALV
ER
ELA
Y
X5-
7
X5-
16
X5-
8
X5-
15
1 2 4 5
3.15
A
F1
5A
TR
2
X1-
7
FLA
ME
RO
DS
PA
RK
RO
D
INT
EG
RA
TE
D C
ON
TR
OL
GR
OU
ND
JUN
CT
ION
BO
X
CA
UT
ION
HIG
H V
OLT
AG
E S
PA
RK
LE
AD
BLO
WE
RC
ON
NE
CT
ION
BO
AR
DINLE
TS
EN
SO
R
OP
ER
AT
ING
SE
NS
OR
FLU
ES
EN
SO
R
INT
EG
RA
TE
DC
ON
TR
OL
RU
N-T
IME
CO
NTA
CTS
RIB
BO
N C
AB
LE
X7
SY
ST
EM
SE
NS
OR
TA
NK
SE
NS
OR
OU
TD
OO
RS
EN
SO
R
0-10
V+ -
CA
SC
AD
EA B
SH
IELD
SH
IELD
13621
SILENCINGSWITCH
ALARMBELL
S6
S4S5
BM
S
CN
6X
6
CN
6X
6
CN
6X
6
CN
6X
6
CN
6X
6
CN
5-2
X4-
6
CN
5-9
X4-
13
CN
5-1
X4-
7
CN
5-8
X4-
14
CN
6X
6
CN
6X
6
CN
6X
6
HIG
H L
IMIT
SE
NS
OR
FLU
ES
EN
SO
R
X5-
4
X5-
12
X5-
5
X5-
13
X5-
14
X5-
6
0-10
V+ -
SY
S P
UM
P IN
0-10
V+ -
BLR
PU
MP
OU
T
0-10
V+ -
RA
TE
OU
TIN
MO
DB
US
A B
SH
IELD
SH
IELD
CN
6X
6
CN
6X
6
CN
6X
6
CN
6X
6
CN
6X
6
CN
8-1
X6-
1
CN
8-2
X6-
2
CN
8-3
X6-
3
X4-
1X
9-2
X4-
2X
9-1
X4-
3X
9-3
PC
INTE
RFA
CE
S2
S1a S1b S3a
S3b
21 22 26 2723 24 30 31 32 33 35 36 37 38 39 40 41 42 43 443 41 2A
LAR
MC
ON
TAC
TS
M O D B U S
29 34
CN
6X
6
X2-
2
NO
TE
S:
1. W
her
e p
ossi
ble
, sw
itch
es a
re s
ho
wn
with
out
uti
litie
s (g
as, w
ater
or
e
lect
rici
ty)
conn
ecte
d to
the
un
it.
As
such
, act
ual
sw
itch
sta
tes
may
v
ary
fro
m t
hos
e sh
ow
n o
n d
iag
ram
s d
epen
din
g u
po
n w
het
her
uti
litie
s
are
con
nec
ted
or
a fa
ult
con
dit
ion
is p
rese
nt.
2. S
ee w
irin
g d
iag
ram
fo
r ad
dit
ion
al n
ote
s.
X1-
1
12
BLO
WE
R
SY
ST
EM
PU
MP
RE
LAY
DH
W P
UM
PR
ELA
Y
BO
ILE
R P
UM
PR
ELA
Y
24V
DC
SU
PP
LY
F3
.8A
X5-
1X
5-9
3
CN
5-5
X4-
3
X1-
4
X1-
3
X1-
2
BO
ILE
RP
UM
P "
L"
DH
WP
UM
P "
L"
SY
ST
EM
PU
MP
"L
"
BO
ILE
RP
UM
P
DH
WP
UM
P
SY
ST
EM
PU
MP
BO
ILE
RP
UM
P "
N"
DH
WP
UM
P "
N"
SY
ST
EM
PU
MP
"N
"
TE
RM
INA
LS
TR
IPT
ER
MIN
AL
ST
RIP
GN
D
GN
D
GN
D
TE
RM
INA
L S
TR
IP12
0V S
UP
PLY
"N
" LOW
VO
LTA
GE
120
VA
CH
IGH
VO
LTA
GE
X5-
2
X5-
11A
IR P
RE
SS
UR
ES
WIT
CH
8
19 17 15 13 10
CN
5-6
CN
5-12
CN
5-11
X4-
2
X4-
10
X4-
11
LOU
VE
RR
ELA
Y C
OIL
24V
AC
LOU
VE
RP
RO
VIN
G S
WIT
CH
CN
5-4
X4-
4
9
5 6 7
CN
5-3
X4-
5
CN
5-13
X4-
9
CN
5-7
X4-
1
CN
5-10
X4-
12
CN
5-14
X4-
8
CO
NN
EC
TIO
N B
OA
RD
CN
7-3
CN
7-2
CN
7-4
CN
7-1
HE
AT
/LO
OP
DE
MA
ND
HE
AT
/LO
OP
DE
MA
ND
321H
EA
T/L
OO
PD
EM
AN
D
TA
NK
TH
ER
MO
ST
AT
HIG
H G
AS
PR
ES
SU
RE
SW
ITC
H
LOW
GA
SP
RE
SS
UR
ES
WIT
CH
20 18 16 14 9
FLO
W
SW
ITC
H11
12
24 V
AC
LWC
O
1013151719
13.500
7.000